diff --git a/README_FR.md b/README_FR.md
index 3d28e6a75..e97cb8d4e 100644
--- a/README_FR.md
+++ b/README_FR.md
@@ -96,15 +96,15 @@ docker run -d -p 18966:18966 --name myip --restart always jason5ng32/myip:latest
 
 Les guides complets se trouvent dans le centre de documentation MyIP : **[docs.ipcheck.ing](https://docs.ipcheck.ing)** (sélecteur de langue en haut à droite)
 
-* [Guide du développeur](https://docs.ipcheck.ing/developer) — déploiement, configuration, architecture et contribution
-* [Base de connaissances](https://docs.ipcheck.ing/knowledge-base) — utilisation de chaque outil, diagnostic réseau pas à pas, concepts réseau
+* [Guide du développeur](https://docs.ipcheck.ing/developer/fr) — déploiement, configuration, architecture et contribution
+* [Base de connaissances](https://docs.ipcheck.ing/knowledge-base/fr) — utilisation de chaque outil, diagnostic réseau pas à pas, concepts réseau
 
 ## ⚙️ Configuration
 
 Deux réglages comptent avant tout :
 
-* **MaxMind GeoLite2 (requis)** — identifiants gratuits pour la géolocalisation IP et les recherches ASN. Sans eux, la source MaxMind renvoie 503. → [Configuration MaxMind](https://docs.ipcheck.ing/developer/getting-started/maxmind-setup)
-* **`ALLOWED_DOMAINS` (requis sur un vrai domaine)** — liste blanche de noms d'hôte pour l'API backend. Sans elle, toute requête venant d'un domaine autre que localhost reçoit un 403. → [Reverse proxy et domaines](https://docs.ipcheck.ing/developer/getting-started/reverse-proxy-and-domains)
+* **MaxMind GeoLite2 (requis)** — identifiants gratuits pour la géolocalisation IP et les recherches ASN. Sans eux, la source MaxMind renvoie 503. → [Configuration MaxMind](https://docs.ipcheck.ing/developer/getting-started/fr/maxmind-setup)
+* **`ALLOWED_DOMAINS` (requis sur un vrai domaine)** — liste blanche de noms d'hôte pour l'API backend. Sans elle, toute requête venant d'un domaine autre que localhost reçoit un 403. → [Reverse proxy et domaines](https://docs.ipcheck.ing/developer/getting-started/fr/reverse-proxy-and-domains)
 
 ```bash
 docker run -d -p 18966:18966 \
@@ -116,7 +116,7 @@ docker run -d -p 18966:18966 \
   jason5ng32/myip:latest
 ```
 
-Tout le reste — clés API optionnelles, sécurité et limitation de débit, journalisation, Sentry, domaines de l'API curl — est documenté dans la [référence des variables d'environnement](https://docs.ipcheck.ing/developer/reference/environment-variables).
+Tout le reste — clés API optionnelles, sécurité et limitation de débit, journalisation, Sentry, domaines de l'API curl — est documenté dans la [référence des variables d'environnement](https://docs.ipcheck.ing/developer/reference/fr/environment-variables).
 
 
 ## 👩🏻‍💻 Utilisation avancée
diff --git a/README_RU.md b/README_RU.md
index 460341867..e5a7c0e3e 100644
--- a/README_RU.md
+++ b/README_RU.md
@@ -96,15 +96,15 @@ docker run -d -p 18966:18966 --name myip --restart always jason5ng32/myip:latest
 
 Полные руководства — в центре документации MyIP: **[docs.ipcheck.ing](https://docs.ipcheck.ing)** (переключатель языка в правом верхнем углу)
 
-* [Руководство разработчика](https://docs.ipcheck.ing/developer) — развёртывание, настройка, архитектура и участие в разработке
-* [База знаний](https://docs.ipcheck.ing/knowledge-base) — как пользоваться каждым инструментом, пошаговая диагностика сети, сетевые концепции
+* [Руководство разработчика](https://docs.ipcheck.ing/developer/ru) — развёртывание, настройка, архитектура и участие в разработке
+* [База знаний](https://docs.ipcheck.ing/knowledge-base/ru) — как пользоваться каждым инструментом, пошаговая диагностика сети, сетевые концепции
 
 ## ⚙️ Конфигурация
 
 Прежде всего важны две настройки:
 
-* **MaxMind GeoLite2 (обязательно)** — бесплатные учётные данные для геолокации IP и запросов ASN. Без них источник MaxMind возвращает 503. → [Настройка MaxMind](https://docs.ipcheck.ing/developer/getting-started/maxmind-setup)
-* **`ALLOWED_DOMAINS` (обязательно на реальном домене)** — белый список хостов для backend API. Без него любой запрос с домена, отличного от localhost, получает 403. → [Обратный прокси и домены](https://docs.ipcheck.ing/developer/getting-started/reverse-proxy-and-domains)
+* **MaxMind GeoLite2 (обязательно)** — бесплатные учётные данные для геолокации IP и запросов ASN. Без них источник MaxMind возвращает 503. → [Настройка MaxMind](https://docs.ipcheck.ing/developer/getting-started/ru/maxmind-setup)
+* **`ALLOWED_DOMAINS` (обязательно на реальном домене)** — белый список хостов для backend API. Без него любой запрос с домена, отличного от localhost, получает 403. → [Обратный прокси и домены](https://docs.ipcheck.ing/developer/getting-started/ru/reverse-proxy-and-domains)
 
 ```bash
 docker run -d -p 18966:18966 \
@@ -116,7 +116,7 @@ docker run -d -p 18966:18966 \
   jason5ng32/myip:latest
 ```
 
-Всё остальное — необязательные ключи API, безопасность и ограничение частоты запросов, логирование, Sentry, домены curl API — описано в [справочнике переменных окружения](https://docs.ipcheck.ing/developer/reference/environment-variables).
+Всё остальное — необязательные ключи API, безопасность и ограничение частоты запросов, логирование, Sentry, домены curl API — описано в [справочнике переменных окружения](https://docs.ipcheck.ing/developer/reference/ru/environment-variables).
 
 
 ## 👩🏻‍💻 Расширенное использование
diff --git a/README_ZH.md b/README_ZH.md
index d9228d0e5..32dcbfe58 100644
--- a/README_ZH.md
+++ b/README_ZH.md
@@ -96,15 +96,15 @@ docker run -d -p 18966:18966 --name myip --restart always jason5ng32/myip:latest
 
 完整文档在 MyIP 文档中心：**[docs.ipcheck.ing](https://docs.ipcheck.ing)**（右上角可切换中文）
 
-* [开发者指南](https://docs.ipcheck.ing/developer) —— 部署、配置、架构说明与参与贡献
-* [知识库](https://docs.ipcheck.ing/knowledge-base) —— 每个工具的使用说明、网络问题排查指南、网络概念科普
+* [开发者指南](https://docs.ipcheck.ing/developer/zh) —— 部署、配置、架构说明与参与贡献
+* [知识库](https://docs.ipcheck.ing/knowledge-base/zh) —— 每个工具的使用说明、网络问题排查指南、网络概念科普
 
 ## ⚙️ 配置
 
 开始之前，有两项配置最重要：
 
-* **MaxMind GeoLite2（必须）** —— 免费凭证，为 IP 地理位置与 ASN 查询提供数据。不配置时 MaxMind 数据源会返回 503。→ [MaxMind 配置指南](https://docs.ipcheck.ing/developer/getting-started/maxmind-setup)
-* **`ALLOWED_DOMAINS`（使用真实域名时必须）** —— 后端 API 的域名白名单。不配置时，来自非 localhost 域名的请求都会收到 403。→ [反向代理与域名](https://docs.ipcheck.ing/developer/getting-started/reverse-proxy-and-domains)
+* **MaxMind GeoLite2（必须）** —— 免费凭证，为 IP 地理位置与 ASN 查询提供数据。不配置时 MaxMind 数据源会返回 503。→ [MaxMind 配置指南](https://docs.ipcheck.ing/developer/getting-started/zh/maxmind-setup)
+* **`ALLOWED_DOMAINS`（使用真实域名时必须）** —— 后端 API 的域名白名单。不配置时，来自非 localhost 域名的请求都会收到 403。→ [反向代理与域名](https://docs.ipcheck.ing/developer/getting-started/zh/reverse-proxy-and-domains)
 
 ```bash
 docker run -d -p 18966:18966 \
@@ -116,7 +116,7 @@ docker run -d -p 18966:18966 \
   jason5ng32/myip:latest
 ```
 
-其余全部为可选配置 —— 第三方 API Key、安全与限流、日志、Sentry、CURL API 域名等，详见[环境变量参考](https://docs.ipcheck.ing/developer/reference/environment-variables)。
+其余全部为可选配置 —— 第三方 API Key、安全与限流、日志、Sentry、CURL API 域名等，详见[环境变量参考](https://docs.ipcheck.ing/developer/reference/zh/environment-variables)。
 
 
 ## 👩🏻‍💻 高级用法
diff --git a/api/ipapi-is.js b/api/ipapi-is.js
index f1c49b20d..4defa0c48 100644
--- a/api/ipapi-is.js
+++ b/api/ipapi-is.js
@@ -12,9 +12,13 @@ function buildUrl(req) {
     return `https://api.ipapi.is?q=${ipAddress}&key=${key}`;
 }
 
-function modifyJsonForIPAPI(json) {
-    let asn = json.asn || {};
-    const { ip, location, is_datacenter, is_proxy, is_vpn, is_tor } = json;
+// Both nested objects are optional: the upstream answers 200 with a null
+// `location` (and no `asn`) for addresses it can't place — anycast ranges,
+// bogons — so neither may be dereferenced directly.
+export function modifyJsonForIPAPI(json) {
+    const asn = json.asn || {};
+    const location = json.location || {};
+    const { ip, is_datacenter, is_proxy, is_vpn, is_tor } = json;
 
     return {
         ip: ip,
diff --git a/common/rdap.js b/common/rdap.js
index 55b2c6fe3..d90da54b0 100644
--- a/common/rdap.js
+++ b/common/rdap.js
@@ -134,7 +134,10 @@ export const rdapIp = async (ip, { timeoutMs = 5000 } = {}) => {
         throw new Error(`No RDAP endpoint for ${ip}`);
     }
 
-    const url = `${trimSlash(base)}/ip/${encodeURIComponent(ip)}`;
+    // Literal IP, not encodeURIComponent: colons are legal in a URL path,
+    // the guard layer already ensures a well-formed IP, and some RIR
+    // delegates (e.g. IDNIC behind APNIC's redirect) reject %3A with a 400.
+    const url = `${trimSlash(base)}/ip/${ip}`;
     const res = await fetchUpstream(url, { timeoutMs });
     if (res.status === 404) {
         throw new Error(`IP not found: ${ip}`);
diff --git a/frontend/components/Additional.vue b/frontend/components/Additional.vue
index c01e33c97..c5008b041 100644
--- a/frontend/components/Additional.vue
+++ b/frontend/components/Additional.vue
@@ -88,9 +88,6 @@ const openCurlModal = () => {
     trackEvent('Additional', 'AdditionalClick', 'Curl');
 };
 
-defineExpose({
-    openCurlModal,
-});
 </script>
 
 <style scoped>
diff --git a/frontend/components/Footer.vue b/frontend/components/Footer.vue
index 8d3b83624..6e1b521bc 100644
--- a/frontend/components/Footer.vue
+++ b/frontend/components/Footer.vue
@@ -15,7 +15,7 @@
         </RouterLink>
       </Button>
       <Button v-if="isDocsConfigured" variant="link" size="default" as-child class="cursor-pointer">
-        <a :href="DOCS_URL" target="_blank" rel="noopener"
+        <a :href="DOCS_URL+'/'+(locale === 'en' ? '' : locale)" target="_blank" rel="noopener"
           @click="trackEvent('Footer', 'FooterClick', 'HelpCenter')">
           {{ t('about.HelpCenter') }}
         </a>
@@ -250,7 +250,4 @@ watch(content, () => {
   });
 });
 
-defineExpose({
-  openAbout,
-});
 </script>
diff --git a/frontend/components/Home.vue b/frontend/components/Home.vue
index d9e1d10bc..f2e1a04e0 100644
--- a/frontend/components/Home.vue
+++ b/frontend/components/Home.vue
@@ -1,8 +1,8 @@
 <template>
-  <NavBar ref="navBarRef" />
+  <NavBar />
   <User ref="userRef" />
   <Achievements ref="achievementsRef" />
-  <Preferences ref="preferencesRef" />
+  <Preferences />
   <main id="mainpart" class="mx-auto w-full px-4 jn-container">
     <div class="rounded-md" tabindex="0">
       <IPCheck ref="IPCheckRef" />
@@ -16,13 +16,13 @@
   <FloatingDock :ready="showMaskButton" :mask-active="infoMaskLevel > 0">
     <InfoMask :showMaskButton.value="showMaskButton" :infoMaskLevel.value="infoMaskLevel"
       :toggleInfoMask="toggleInfoMask" />
-    <ShareReport />
+    <ShareReport ref="shareReportRef" />
     <IPHistory />
     <QueryIP ref="queryIPRef" />
   </FloatingDock>
   <HelpModal ref="helpModalRef" />
-  <Additional ref="additionalRef" />
-  <Footer ref="footerRef" />
+  <Additional />
+  <Footer />
 </template>
 
 <script setup>
@@ -81,14 +81,11 @@ const userPreferences = computed(() => store.userPreferences);
 const isToolOpen = computed(() => !!route.query.tool);
 
 // Template refs
-const navBarRef = ref(null);
 const userRef = ref(null);
 const achievementsRef = ref(null);
-const preferencesRef = ref(null);
 const queryIPRef = ref(null);
 const helpModalRef = ref(null);
-const additionalRef = ref(null);
-const footerRef = ref(null);
+const shareReportRef = ref(null);
 const speedTestRef = ref(null);
 const advancedToolsRef = ref(null);
 const IPCheckRef = ref(null);
@@ -114,7 +111,7 @@ const { loadingControl } = useRefreshOrchestrator({
 // Shortcuts
 const { loadShortcuts } = useShortcuts({
     refs: {
-        navBarRef, preferencesRef, queryIPRef, helpModalRef, additionalRef, footerRef,
+        queryIPRef, helpModalRef, shareReportRef,
         speedTestRef, advancedToolsRef, IPCheckRef, connectivityRef, webRTCRef, dnsLeaksRef,
         isInfosLoaded, isToolOpen, toggleInfoMask,
     },
diff --git a/frontend/components/IpInfos.vue b/frontend/components/IpInfos.vue
index 0caebdba7..777a62263 100644
--- a/frontend/components/IpInfos.vue
+++ b/frontend/components/IpInfos.vue
@@ -297,9 +297,8 @@ const fetchIPDetails = async (cardIndex, ip, sourceID = null) => {
   const fetchPromise = (async () => {
     const sources = store.ipDBs.filter(source => source.enabled);
 
-    // The preferred source may no longer be in the enabled list (disabled by
-    // a concurrent card's failure, or a stale stored preference); findIndex
-    // then yields -1 and sources[-1] is undefined — start from the first one.
+    // The requested source may be absent from the enabled list (config flag
+    // off, or configs not loaded yet); findIndex yields -1 — start from 0.
     let currentSourceIndex = sourceID !== null ? sources.findIndex(source => source.id === sourceID) : 0;
     if (currentSourceIndex === -1) currentSourceIndex = 0;
     let attempts = 0;
@@ -312,16 +311,23 @@ const fetchIPDetails = async (cardIndex, ip, sourceID = null) => {
         const cardData = transformDataFromIPapi(response, source.id, t, lang.value);
 
         if (cardData) {
+          // Fallback landed off the requested source: toast once (parallel
+          // cards dedupe via usingSource), drift the runtime refs, but never
+          // rewrite the user's stored preference.
+          if (source.id !== sourceID && usingSource.value !== source.id) {
+            const from = store.ipDBs.find(db => db.id === sourceID)?.text || `#${sourceID}`;
+            store.setAlert(true, 'text-warning',
+              t('alert.IpGeoSourceFallbackMessage', { from, to: source.text }),
+              t('alert.IpGeoSourceFallbackTitle'), 5000);
+          }
           ipGeoSource.value = source.id;
           usingSource.value = source.id;
-          store.updatePreference('ipGeoSource', source.id);
           Object.assign(card, cardData);
           ipDataCache.set(ip, cardData);
           return;
         }
       } catch (error) {
         console.error("Error fetching IP details from source " + source.id + ":", error);
-        store.updateIPDBs({ id: source.id, enabled: false });
         currentSourceIndex = (currentSourceIndex + 1) % sources.length;
         attempts++;
       }
diff --git a/frontend/components/Nav.vue b/frontend/components/Nav.vue
index 306e65087..b9713d959 100644
--- a/frontend/components/Nav.vue
+++ b/frontend/components/Nav.vue
@@ -455,8 +455,6 @@ onBeforeUnmount(() => {
   window.removeEventListener('scroll', onScroll);
   clearTimeout(openToolTimer);
 });
-
-defineExpose({ OpenPreferences });
 </script>
 
 <style scoped>
diff --git a/frontend/components/SpeedTest.vue b/frontend/components/SpeedTest.vue
index f7593c314..26549c6fe 100644
--- a/frontend/components/SpeedTest.vue
+++ b/frontend/components/SpeedTest.vue
@@ -176,6 +176,7 @@ import { trackEvent } from '@/utils/analytics';
 import { emitAppEvent } from '@/utils/app-events.js';
 import { fetchWithTimeout } from '@/utils/fetch-with-timeout.js';
 import { isValidIP } from '@/utils/valid-ip.js';
+import { parseTrace } from '@/utils/parse-trace.js';
 import getCountryName from '@/data/country-name.js';
 import SpeedTestEngine from '@cloudflare/speedtest';
 import useSpeedTestCharts from '@/composables/use-speedtest-charts.js';
@@ -294,12 +295,15 @@ const connectionMethods = {
     try {
       const response = await fetchWithTimeout('https://speed.cloudflare.com/cdn-cgi/trace');
       const data = await response.text();
-      const lines = data.split('\n');
-      const ip = lines.find((l) => l.startsWith('ip='))?.split('=')[1];
-      const colo = lines.find((l) => l.startsWith('colo='))?.split('=')[1];
-      const loc = lines.find((l) => l.startsWith('loc='))?.split('=')[1];
+      const { ip, colo, loc } = parseTrace(data);
 
-      if (!isValidIP(ip)) throw new Error('Invalid IP from SpeedTest Server');
+      if (!isValidIP(ip)) {
+        // Self-describing diagnostic.
+        const detail = ip == null ? 'no-ip-line'
+          : ip === '' ? 'empty-value'
+            : `len=${ip.length} tail=0x${ip.charCodeAt(ip.length - 1).toString(16)}`;
+        throw new Error(`Invalid IP from SpeedTest Server (${detail})`);
+      }
 
       const { default: getColoCountry } = await import('@/data/speedtest-colos.js');
 
@@ -348,8 +352,11 @@ const engineMethods = {
     });
   },
 
+  // The engine's queued timers deliver one last measurement after onFinish /
+  // onUnmounted dropped the reference, so the engine may already be gone.
   updateProgress() {
-    const rawData = testEngine.results.raw;
+    const rawData = testEngine?.results?.raw;
+    if (!rawData) return;
     // 3 stages: latency / download / upload.
     const perStage = 100 / 3;
     let progress = 0;
diff --git a/frontend/components/User.vue b/frontend/components/User.vue
index ffa93d2bb..cd232e147 100644
--- a/frontend/components/User.vue
+++ b/frontend/components/User.vue
@@ -10,7 +10,7 @@
 
                 <!-- Benefits List -->
                 <ul class="rounded-lg border bg-card divide-y">
-                    <li v-for="n in 5" :key="n" class="flex items-start gap-3 p-3 text-sm">
+                    <li v-for="n in 6" :key="n" class="flex items-start gap-3 p-3 text-sm">
                         <span
                             class="shrink-0 inline-flex items-center justify-center size-5 rounded-full bg-success/15 text-success mt-0.5">
                             <CircleCheck class="size-3.5" />
diff --git a/frontend/components/advanced-tools/RuleTest.vue b/frontend/components/advanced-tools/RuleTest.vue
index d9669bbb8..dd086a17c 100644
--- a/frontend/components/advanced-tools/RuleTest.vue
+++ b/frontend/components/advanced-tools/RuleTest.vue
@@ -85,6 +85,7 @@ import { ref, computed, onMounted, watch } from 'vue';
 import { useMainStore } from '@/store';
 import { useI18n } from 'vue-i18n';
 import { emitAppEvent } from '@/utils/app-events.js';
+import { parseTrace } from '@/utils/parse-trace.js';
 import getCountryName from '@/data/country-name.js';
 import { Button } from '@/components/ui/button';
 import { Card, CardContent } from '@/components/ui/card';
@@ -138,12 +139,8 @@ const fetchTrace = async (id, url) => {
     try {
         const response = await fetch(`https://${url}/cdn-cgi/trace`);
         const data = await response.text();
-        const lines = data.split('\n');
-        const ipLine = lines.find((line) => line.startsWith('ip='));
-        const countryLine = lines.find((line) => line.startsWith('loc='));
-        const country = countryLine ? countryLine.split('=')[1] : '';
-        if (ipLine) {
-            const ip = ipLine.split('=')[1];
+        const { ip, loc: country = '' } = parseTrace(data);
+        if (ip) {
             ruleTests.value[id].ip = ip;
             IPArray.value = [...IPArray.value, { ip, country }];
         }
@@ -155,8 +152,7 @@ const fetchTrace = async (id, url) => {
         // no org — MaxMind fills that gap. Country resolution stays on
         // trace (authoritative for each ptest worker's egress), so a
         // MaxMind miss leaves the existing country untouched.
-        if (ipLine) {
-            const ip = ruleTests.value[id].ip;
+        if (ip) {
             const geo = await lookupMaxmind(ip);
             ruleTests.value[id].org = geo ? geo.org : t('ruletest.StatusError');
             if (geo) {
diff --git a/frontend/components/report/ShareReportDialog.vue b/frontend/components/report/ShareReportDialog.vue
index bc40bfb7b..9d1c67b15 100644
--- a/frontend/components/report/ShareReportDialog.vue
+++ b/frontend/components/report/ShareReportDialog.vue
@@ -209,4 +209,7 @@ const onDownloadJson = () => {
 
 const expiresAtDisplay = computed(() =>
     expiresAt.value ? new Date(expiresAt.value).toLocaleString() : '');
+
+// For the `e` keyboard shortcut (use-shortcuts.js).
+defineExpose({ openDialog });
 </script>
diff --git a/frontend/components/widgets/DocsAssistant.vue b/frontend/components/widgets/DocsAssistant.vue
index ead6ce79d..b8bb0414f 100644
--- a/frontend/components/widgets/DocsAssistant.vue
+++ b/frontend/components/widgets/DocsAssistant.vue
@@ -1,36 +1,64 @@
 <template>
-  <!-- Touch-only chrome for the GitBook Assistant panel (see
-       composables/use-docs-assistant.js). The panel opens and closes through
-       the embed's own launcher; what it lacks on phones is a way to dismiss
-       by tapping outside, and a scroll lock — without one, swiping a chat too
-       short to scroll drags the page underneath instead. Desktop keeps page
-       scrolling, as with our other panels. Placement of the launcher and the
-       panel lives in style.css next to the embed overrides. -->
+  <!-- Our own chrome for the GitBook Assistant panel (see
+       composables/use-docs-assistant.js). The embed's stock launcher is hidden
+       in style.css and replaced by the toggle below, so the control matches
+       the FAB dock's buttons instead of GitBook's own pill — and mirrors it
+       across the page, on the same baseline and the same inset from the
+       1600px content area.
+       On touch screens the panel also gets a tap-outside backdrop and a body
+       scroll lock: without one, swiping a chat too short to scroll drags the
+       page underneath. Desktop keeps page scrolling, as with our other panels. -->
   <Teleport to="body">
     <Transition enter-active-class="transition-opacity duration-200" enter-from-class="opacity-0"
       leave-active-class="transition-opacity duration-200" leave-to-class="opacity-0">
       <div v-if="isOpen && isMobile" class="fixed inset-0 z-1090 bg-black/40" aria-hidden="true" @click="closeDocs">
       </div>
     </Transition>
+
+    <!-- Mirror of FloatingDock: same bottom-9 baseline, same 18px gutter off
+         the content area, so the two sides stay symmetric on wide screens.
+         No enter/leave transition — the toggle swaps state often enough that
+         animating it just reads as a flicker. -->
+    <div v-if="isLoaded && isSignedIn" class="fixed bottom-9 z-1100" :style="{ left: DOCK_INSET }">
+      <JnTooltip :text="isOpen ? t('about.Close') : t('nav.AskCopilot')" side="right">
+        <Button size="icon" type="button" :variant="isOpen ? 'secondary' : 'outline'"
+          :aria-label="isOpen ? t('about.Close') : t('nav.AskCopilot')" :aria-expanded="isOpen"
+          class="rounded-full shadow-lg cursor-pointer" @click="toggleDocs">
+          <component :is="isOpen ? X : Sparkle" class="size-4" />
+        </Button>
+      </JnTooltip>
+    </div>
   </Teleport>
 </template>
 
 <script setup>
 import { computed, watch, onBeforeUnmount } from 'vue';
+import { useI18n } from 'vue-i18n';
 import { useMainStore } from '@/store';
-import { useDocsAssistant } from '@/composables/use-docs-assistant';
+import { useDocsAssistant, isSettling } from '@/composables/use-docs-assistant';
+import { Button } from '@/components/ui/button';
+import { JnTooltip } from '@/components/ui/tooltip';
+import { Sparkle, X } from '@lucide/vue';
 
 const PANEL_SELECTOR = '#gitbook-widget-window';
 const SYNC_INTERVAL = 300;
+// FloatingDock hugs the 1600px content area with an 18px gutter; past that
+// width it steps inward by half the overflow. max() keeps it at 18px below.
+const DOCK_INSET = 'max(18px, calc((100vw - 1600px) / 2 + 18px))';
 
+const { t } = useI18n();
 const store = useMainStore();
 const isMobile = computed(() => store.isMobile);
+// The assistant is a sign-in benefit (see DocsSearch.vue) — signing out mid
+// session takes the toggle away with the rest of the entry points.
+const isSignedIn = computed(() => store.isSignedIn === true);
+
+const { isOpen, isLoaded, askDocs, closeDocs, setOpen } = useDocsAssistant();
 
-const { isOpen, isLoaded, closeDocs, setOpen } = useDocsAssistant();
+const toggleDocs = () => (isOpen.value ? closeDocs() : askDocs(''));
 
-// The embed fires no open/close callbacks and its launcher toggles the panel
-// on its own, so read the panel element instead — both directions. Polling
-// starts only once the embed has been loaded (first docs search of the
+// The embed fires no open/close callbacks, so read the panel element instead.
+// Polling starts once the embed has been loaded (first docs search of the
 // session) and stops on unmount.
 let syncTimer = null;
 
@@ -43,7 +71,12 @@ const panelIsVisible = () => {
 
 const startSync = () => {
   if (syncTimer) return;
-  syncTimer = setInterval(() => setOpen(panelIsVisible()), SYNC_INTERVAL);
+  syncTimer = setInterval(() => {
+    // Our own open/close already set the state; skip while the panel is still
+    // animating into it, or the stale measurement flips the toggle back.
+    if (isSettling()) return;
+    setOpen(panelIsVisible());
+  }, SYNC_INTERVAL);
 };
 
 const stopSync = () => {
@@ -67,6 +100,12 @@ watch([isOpen, isMobile], ([open, mobile]) => {
   lockScroll(open && mobile);
 }, { immediate: true });
 
+// Signing out mid-conversation closes the panel too — otherwise it would sit
+// there with no visible way back to it.
+watch(isSignedIn, (signedIn) => {
+  if (!signedIn && isOpen.value) closeDocs();
+});
+
 const onKeydown = (event) => {
   if (event.key === 'Escape' && isOpen.value) closeDocs();
 };
diff --git a/frontend/components/widgets/DocsSearch.vue b/frontend/components/widgets/DocsSearch.vue
index 172cb2fc9..2dd758a69 100644
--- a/frontend/components/widgets/DocsSearch.vue
+++ b/frontend/components/widgets/DocsSearch.vue
@@ -1,20 +1,22 @@
 <template>
-  <!-- Nav entry point for the docs assistant. Desktop gets an ask box whose
-       placeholder rotates through preset questions — so it reads as "ask
-       anything", and Enter on an empty box asks whatever is on show. Mobile
-       gets the same entry as a single icon. Both are inert while the panel
-       itself is open (it owns the conversation then).
+  <!-- Nav entry point for the docs assistant. Desktop gets an ask box, mobile
+       the same entry as a single icon. Both are inert while the panel itself
+       is open (it owns the conversation then).
        The embed lives in widgets/DocsAssistant.vue; the loading and
        configuration in composables/use-docs-assistant.js. -->
   <form v-if="enabled && !isMobile" class="relative" @submit.prevent="submitDocsSearch">
     <Sparkle class="pointer-events-none absolute left-2.5 top-1/2 size-3.5 -translate-y-1/2 text-muted-foreground z-10" />
-    <Input v-model="query" type="text" :aria-label="t('nav.SearchDocs')" :disabled="isDocsOpen"
+    <!-- Focused, the native placeholder prompts for a question; idle, the
+         rotating overlay below advertises what can be asked. -->
+    <Input v-model="query" type="text" :aria-label="t('nav.AskCopilot')" :disabled="isDocsOpen"
+      :placeholder="isFocused ? t('nav.DocsPrompt') : ''"
       class="h-8 w-44 focus:w-64 transition-[width] duration-300 pl-8 text-sm" autocomplete="off" autocorrect="off"
       autocapitalize="off" spellcheck="false" data-1p-ignore data-lpignore="true"
       @keydown.enter.prevent="submitDocsSearch" @focus="isFocused = true" @blur="isFocused = false" />
-    <!-- Rotating placeholder rendered as an overlay (native placeholders
-         can't animate). Hidden as soon as the visitor types. -->
-    <div v-if="!query" class="pointer-events-none absolute inset-y-0 left-8 right-2 flex items-center overflow-hidden">
+    <!-- Rotating sample questions, as an overlay because native placeholders
+         can't animate. Hidden once the box is focused or has text. -->
+    <div v-if="!query && !isFocused"
+      class="pointer-events-none absolute inset-y-0 left-8 right-2 flex items-center overflow-hidden">
       <Transition enter-active-class="transition-all duration-300 ease-out" enter-from-class="opacity-0 translate-y-3"
         enter-to-class="opacity-100 translate-y-0" leave-active-class="transition-all duration-300 ease-in absolute"
         leave-from-class="opacity-100 translate-y-0" leave-to-class="opacity-0 -translate-y-3">
@@ -25,8 +27,8 @@
     </div>
   </form>
 
-  <JnTooltip v-else-if="enabled" :text="t('nav.SearchDocs')">
-    <Button variant="ghost" size="icon" class="size-8 cursor-pointer" :aria-label="t('nav.SearchDocs')"
+  <JnTooltip v-else-if="enabled" :text="t('nav.AskCopilot')">
+    <Button variant="ghost" size="icon" class="size-8 cursor-pointer" :aria-label="t('nav.AskCopilot')"
       :disabled="isDocsOpen" @click="openAssistant">
       <Sparkle />
     </Button>
@@ -50,9 +52,12 @@ const { t } = useI18n();
 const store = useMainStore();
 const isMobile = computed(() => store.isMobile);
 
-// Needs a docs site to answer from: configured at build time, and only on the
-// canonical deployment — same gate as the original-site-only advanced tools.
-const enabled = computed(() => isDocsConfigured && store.configs?.originalSite === true);
+// Three gates: a docs site to answer from (build time), the canonical
+// deployment (same as the original-site-only advanced tools), and a signed-in
+// visitor.
+const enabled = computed(() => isDocsConfigured
+  && store.configs?.originalSite === true
+  && store.isSignedIn === true);
 
 // While the assistant panel is open it owns the conversation, so this entry
 // point goes inert — otherwise there are two places to type. State comes from
@@ -63,9 +68,9 @@ const { askDocs, docsQuestions, isOpen: isDocsOpen } = useDocsAssistant();
 const query = ref('');
 const isFocused = ref(false);
 
-// The placeholder freezes once the box has focus or any text — the visible
-// question is the one Enter sends, so it must not change underfoot. Locale
-// switches re-resolve through docsQuestions().
+// Sample questions cycle while the box sits idle. Purely advertising — they
+// are never submitted on the visitor's behalf, so an idle box costs nothing.
+// Locale switches re-resolve through docsQuestions().
 const placeholderIndex = ref(0);
 const placeholder = computed(() => {
   const questions = docsQuestions();
@@ -82,14 +87,13 @@ onBeforeUnmount(() => {
   if (rotateTimer) clearInterval(rotateTimer);
 });
 
-// Enter on an empty box asks whatever question is currently on show, so the
-// rotating placeholder doubles as a one-keystroke suggestion.
+// Only a typed question is ever sent — an empty box does nothing, so a stray
+// Enter can't spend assistant quota.
 const submitDocsSearch = () => {
   if (isDocsOpen.value) return;
-  const typed = query.value.trim();
-  const question = typed || placeholder.value;
+  const question = query.value.trim();
   if (!question) return;
-  trackEvent('Nav', 'DocsSearch', typed ? 'submit' : 'placeholder');
+  trackEvent('Nav', 'DocsSearch', 'submit');
   askDocs(question);
   query.value = '';
 };
diff --git a/frontend/components/widgets/Preferences.vue b/frontend/components/widgets/Preferences.vue
index 9a63050d5..3251ab464 100644
--- a/frontend/components/widgets/Preferences.vue
+++ b/frontend/components/widgets/Preferences.vue
@@ -168,7 +168,7 @@
 </template>
 
 <script setup>
-import { computed, ref, watch, onMounted, h } from 'vue';
+import { computed, ref, watch, h } from 'vue';
 import { useMainStore } from '@/store';
 import { useI18n } from 'vue-i18n';
 import { trackEvent } from '@/utils/analytics';
@@ -198,7 +198,6 @@ import {
 const { t } = useI18n();
 
 const store = useMainStore();
-const configs = computed(() => store.configs);
 const userPreferences = computed(() => store.userPreferences);
 const ipDBs = computed(() => store.ipDBs);
 
@@ -231,15 +230,6 @@ const currentIpDB = computed(() =>
     ipDBs.value.find(db => db.id === userPreferences.value.ipGeoSource)
 );
 
-const updateIPDBs = () => {
-    if (configs.value && Object.keys(configs.value).length > 0) {
-        store.updateIPDBs({ id: 0, enabled: configs.value.ipChecking });
-        store.updateIPDBs({ id: 1, enabled: configs.value.ipInfo });
-        store.updateIPDBs({ id: 3, enabled: configs.value.ipapiis });
-        store.updateIPDBs({ id: 4, enabled: configs.value.ip2location });
-    }
-};
-
 const prefTheme = (value) => {
     // Application is handled by use-theme.js, which watches this preference.
     store.updatePreference('theme', value);
@@ -310,11 +300,6 @@ const prefipGeoSource = (value) => {
     trackEvent('IPCheck', 'SelectSource', ipDBs.value.find(x => x.id === value).text);
 };
 
-onMounted(() => {
-    setTimeout(updateIPDBs, 4000);
-});
-
-
 // Section title: lucide icon + text, unified rhythm
 const SectionTitle = (props, { slots }) =>
     h('h3', { class: 'flex items-center gap-1.5 text-xs font-semibold uppercase tracking-wide text-muted-foreground mb-2' }, [
diff --git a/frontend/composables/use-docs-assistant.js b/frontend/composables/use-docs-assistant.js
index fdf5c48db..97ac713cc 100644
--- a/frontend/composables/use-docs-assistant.js
+++ b/frontend/composables/use-docs-assistant.js
@@ -47,6 +47,15 @@ let loadPromise = null;
 const isOpen = ref(false);
 const isLoaded = ref(false);
 
+// Opening and closing are animated, so for a moment after we act the panel
+// still measures as its previous state. DocsAssistant.vue's watcher consults
+// this before overwriting `isOpen` — otherwise a close reads as "still open"
+// on the next tick and the toggle icon flickers back and forth.
+const SETTLE_MS = 700;
+let lastIntentAt = 0;
+const markIntent = () => { lastIntentAt = Date.now(); };
+export const isSettling = () => Date.now() - lastIntentAt < SETTLE_MS;
+
 const loadEmbedScript = () => {
     if (loadPromise) return loadPromise;
     loadPromise = new Promise((resolve, reject) => {
@@ -116,6 +125,7 @@ export function useDocsAssistant() {
     };
 
     const closeDocs = () => {
+        markIntent();
         isOpen.value = false;
         if (typeof window.GitBook === 'function') window.GitBook('close');
     };
@@ -142,6 +152,8 @@ export function useDocsAssistant() {
                 tools: [readResultsTool],
             });
             window.GitBook('open');
+            markIntent();
+            isOpen.value = true;
             if (question) {
                 window.GitBook('navigateToAssistant');
                 window.GitBook('postUserMessage', question);
diff --git a/frontend/composables/use-shortcuts.js b/frontend/composables/use-shortcuts.js
index a1b61c743..7e44904af 100644
--- a/frontend/composables/use-shortcuts.js
+++ b/frontend/composables/use-shortcuts.js
@@ -23,12 +23,9 @@ import { scrollToElement } from '../utils/scroll-to.js';
 
 function buildShortcutConfig({ refs, store, t, configs, userPreferences }) {
     const {
-        navBarRef,
-        preferencesRef,
         queryIPRef,
         helpModalRef,
-        additionalRef,
-        footerRef,
+        shareReportRef,
         speedTestRef,
         advancedToolsRef,
         IPCheckRef,
@@ -191,19 +188,9 @@ function buildShortcutConfig({ refs, store, t, configs, userPreferences }) {
             description: t('shortcutKeys.IPHistory'),
         },
         {
-            keys: 'p',
-            action: () => { navBarRef.value.OpenPreferences(); trackEvent('ShortCut', 'ShortCut', 'Preferences'); },
-            description: t('shortcutKeys.Preferences'),
-        },
-        {
-            keys: 'a',
-            action: () => { footerRef.value?.openAbout(); trackEvent('ShortCut', 'ShortCut', 'About'); },
-            description: t('shortcutKeys.About'),
-        },
-        {
-            keys: 'x',
-            action: () => { additionalRef.value?.openCurlModal(); trackEvent('ShortCut', 'ShortCut', 'Curl'); },
-            description: t('shortcutKeys.Curl'),
+            keys: 'e',
+            action: () => { shareReportRef.value?.openDialog(); trackEvent('ShortCut', 'ShortCut', 'ShareReport'); },
+            description: t('shortcutKeys.ShareReport'),
         },
         {
             keys: '?',
diff --git a/frontend/data/changelog.json b/frontend/data/changelog.json
index e4ca250ea..224273129 100644
--- a/frontend/data/changelog.json
+++ b/frontend/data/changelog.json
@@ -88,7 +88,7 @@
         "type": "add",
         "change": {
           "en": "Added DNS leak test",
-          "zh": "添加了 DNS 泄漏测试",
+          "zh": "添加了 DNS 泄露测试",
           "fr": "Ajout du test de fuite DNS",
           "ru": "Добавлен тест утечки DNS"
         }
@@ -1021,7 +1021,7 @@
         "type": "add",
         "change": {
           "en": "In-depth DNS Leak Test: captures every recursive resolver you use, with ECS and DNSSEC analysis",
-          "zh": "深度 DNS 泄漏测试：捕获所有递归解析器并分析 ECS 与 DNSSEC",
+          "zh": "深度 DNS 泄露测试：捕获所有递归解析器并分析 ECS 与 DNSSEC",
           "fr": "Test de fuite DNS approfondi : capture tous les résolveurs récursifs utilisés, avec analyse ECS et DNSSEC",
           "ru": "Углублённый тест утечки DNS: выявляет все используемые рекурсивные резолверы и анализирует ECS и DNSSEC"
         }
diff --git a/frontend/data/ip-databases.js b/frontend/data/ip-databases.js
index 0f57d80c6..042be4383 100644
--- a/frontend/data/ip-databases.js
+++ b/frontend/data/ip-databases.js
@@ -1,17 +1,18 @@
 // IP database definitions
 //
-// Each item: { id, text, url, enabled }
+// Each item: { id, text, url, enabled, configKey? }
 // - id    numeric identifier, referenced elsewhere in the app (e.g. userPreferences.ipGeoSource)
 // - text  UI display name, also lookup key (e.g. `WebRtcTest.vue` looks for "MaxMind")
 // - url   template string, {{ip}} and {{lang}} will be replaced by buildDbUrl()
-// - enabled initial enabled state (user can toggle in Preferences, store will write back this field)
+// - enabled   availability, derived from /api/configs (runtime failures never touch it)
+// - configKey /api/configs flag gating this source; absent = key-free, always available
 
 export const IP_DATABASES = [
-  { id: 0, text: 'IPCheck.ing', url: '/api/ipchecking?ip={{ip}}&lang={{lang}}', enabled: true },
-  { id: 1, text: 'IPinfo.io', url: '/api/ipinfo?ip={{ip}}', enabled: true },
+  { id: 0, text: 'IPCheck.ing', url: '/api/ipchecking?ip={{ip}}&lang={{lang}}', enabled: true, configKey: 'ipChecking' },
+  { id: 1, text: 'IPinfo.io', url: '/api/ipinfo?ip={{ip}}', enabled: true, configKey: 'ipInfo' },
   { id: 2, text: 'IP-API.com', url: '/api/ipapicom?ip={{ip}}&lang={{lang}}', enabled: true },
-  { id: 3, text: 'IPAPI.is', url: '/api/ipapiis?ip={{ip}}', enabled: true },
-  { id: 4, text: 'IP2Location.io', url: '/api/ip2location?ip={{ip}}', enabled: true },
+  { id: 3, text: 'IPAPI.is', url: '/api/ipapiis?ip={{ip}}', enabled: true, configKey: 'ipapiis' },
+  { id: 4, text: 'IP2Location.io', url: '/api/ip2location?ip={{ip}}', enabled: true, configKey: 'ip2location' },
   { id: 5, text: 'IP.sb', url: '/api/ipsb?ip={{ip}}', enabled: true },
   { id: 6, text: 'MaxMind', url: '/api/maxmind?ip={{ip}}&lang={{lang}}', enabled: true },
 ];
@@ -31,3 +32,29 @@ export function buildDbUrl(db, ip, lang) {
   if (!db || !db.url) return null;
   return db.url.replace('{{ip}}', ip).replace('{{lang}}', lang || 'en');
 }
+
+/**
+ * Pure function: derive availability from /api/configs — keyed sources follow
+ * their flag, key-free sources stay enabled. Returns a fresh array.
+ */
+export const applyConfigAvailability = (dbs, configs) =>
+  dbs.map((db) => ({
+    ...db,
+    enabled: db.configKey ? !!configs?.[db.configKey] : true,
+  }));
+
+/**
+ * Pure function: nearest available source id, walking forward cyclically from
+ * preferredId (the direction the fetch fallback walks). Unknown ids start
+ * from the head; nothing enabled → preferredId unchanged.
+ */
+export const nearestEnabledId = (preferredId, dbs) => {
+  if (!dbs.length) return preferredId;
+  const idx = dbs.findIndex((db) => db.id === preferredId);
+  const start = idx === -1 ? 0 : idx;
+  for (let i = 0; i < dbs.length; i++) {
+    const db = dbs[(start + i) % dbs.length];
+    if (db.enabled) return db.id;
+  }
+  return preferredId;
+};
diff --git a/frontend/locales/en.json b/frontend/locales/en.json
index 9b9805735..86e2e5057 100644
--- a/frontend/locales/en.json
+++ b/frontend/locales/en.json
@@ -28,11 +28,12 @@
       "Benefit": "Benefit",
       "Note1": "As an open-source product, your use of IPCheck.ing is free of charge.",
       "Note2": "However, to prevent abuse, we limit some features. By logging in, you will receive the following benefits:",
-      "Benefit1": "When you use IPCheck.ing as IP data source, all fields are displayed in full.",
-      "Benefit2": "You can use the invisibility test.",
-      "Benefit3": "You can use the in-depth DNS leak test.",
+      "Benefit1": "When you use IPCheck.ing as IP data source, all fields are displayed in full",
+      "Benefit2": "You can use the invisibility test",
+      "Benefit3": "You can use the in-depth DNS leak test",
       "Benefit4": "You can view your own achievement badges",
-      "Benefit5": "Reduces access restrictions on some features.",
+      "Benefit5": "You can ask IPChecking Copilot, our AI assistant",
+      "Benefit6": "Reduces access restrictions on some features",
       "FootNote": "More benefits are being developed..."
     },
     "Achievements": {
@@ -151,6 +152,7 @@
     "SearchDocs": "Search docs…",
     "DocsToolConfirm": "Share your current test results?",
     "DocsToolSummary": "Read your on-page results",
+    "AskCopilot": "Ask IPChecking Copilot",
     "OpenDocs": "Open docs",
     "DocsGreetingTitle": "How can I help?",
     "DocsGreetingSubtitle": "Ask me anything about MyIP — the tools, your results, or self-hosting.",
@@ -188,7 +190,8 @@
       "ipDBTips": "You can select the default IP geolocation source to use. If the selected source is unavailable, the system will use the subsequent sources in order.",
       "language": "Language Setting",
       "languageTips": "Refreshing the browser will take effect."
-    }
+    },
+    "DocsPrompt": "Type your question…"
   },
   "securitychecklist": {
     "Title": "Security Checklist",
@@ -923,7 +926,9 @@
     "unmaskedInfoTitle": "IPs Unmasked",
     "unmaskedInfoMessage": "Be careful when sharing screenshots.",
     "SignInFailed": "Sign In Failed",
-    "SignInFailedReason": "Reason"
+    "SignInFailedReason": "Reason",
+    "IpGeoSourceFallbackTitle": "IP Geolocation Source Switched",
+    "IpGeoSourceFallbackMessage": "{from} is temporarily unavailable — this result comes from {to} for now."
   },
   "shortcutKeys": {
     "GoToTop": "Go to Top",
@@ -942,6 +947,7 @@
     "IPCheck": "Query IP Address",
     "ToggleInfoMask": "Toggle Info Masking",
     "IPHistory": "Open IP History panel",
+    "ShareReport": "Open Share Report dialog",
     "Help": "Show Shortcut Keys",
     "HelpNote": "People who use shortcuts are really awesome!",
     "GoNext": "Next Card",
@@ -950,7 +956,6 @@
     "RefreshRuleTests": "Refresh Rule Tests",
     "CensorshipCheck": "Open Censorship Check panel",
     "Preferences": "Open Preferences",
-    "About": "Open About panel",
     "Whois": "Open Whois Search panel",
     "ServiceStatus": "Open Service Status panel",
     "InvisibilityTest": "Open Invisibility Test panel",
@@ -958,7 +963,6 @@
     "MacChecker": "Open MAC lookup panel",
     "BrowserInfo": "Open Browser Info panel",
     "fullScreenAdvancedTools": "Full Screen Advanced Tools",
-    "Curl": "Command Line API",
     "SecurityChecklist": "Open Security Checklist panel"
   },
   "page": {
diff --git a/frontend/locales/fr.json b/frontend/locales/fr.json
index a84dc3c65..22730cbad 100644
--- a/frontend/locales/fr.json
+++ b/frontend/locales/fr.json
@@ -28,11 +28,12 @@
       "Benefit": "Avantage",
       "Note1": "En tant que produit open-source, l'utilisation de IPCheck.ing est gratuite.",
       "Note2": "Cependant, afin de prévenir les abus, nous limitons certaines fonctionnalités. En vous connectant, vous obtiendrez les avantages suivants :",
-      "Benefit1": "Lorsque vous utilisez IPCheck.ing comme source de données IP, tous les champs sont affichés intégralement.",
-      "Benefit2": "Peut utiliser le test d'invisibilité.",
-      "Benefit3": "Peut utiliser le test d'invisibilité.",
+      "Benefit1": "Lorsque vous utilisez IPCheck.ing comme source de données IP, tous les champs sont affichés intégralement",
+      "Benefit2": "Peut utiliser le test d'invisibilité",
+      "Benefit3": "Peut utiliser le test de fuite DNS en profondeur",
       "Benefit4": "Peut voir les badges de réussite qu'il a obtenus",
-      "Benefit5": "Réduit les restrictions d'accès à certaines fonctionnalités.",
+      "Benefit5": "Peut poser des questions à IPChecking Copilot, notre assistant IA",
+      "Benefit6": "Réduit les restrictions d'accès à certaines fonctionnalités",
       "FootNote": "D'autres avantages sont en cours de développement..."
     },
     "Achievements": {
@@ -151,6 +152,7 @@
     "SearchDocs": "Rechercher dans la doc…",
     "DocsToolConfirm": "Partager vos résultats actuels ?",
     "DocsToolSummary": "Résultats de la page lus",
+    "AskCopilot": "Demander à IPChecking Copilot",
     "OpenDocs": "Ouvrir la doc",
     "DocsGreetingTitle": "Comment puis-je vous aider ?",
     "DocsGreetingSubtitle": "Posez vos questions sur MyIP : les outils, vos résultats ou l'auto-hébergement.",
@@ -188,7 +190,8 @@
       "ipDBTips": "Vous pouvez sélectionner la source de données de géolocalisation IP par défaut. Si la source sélectionnée n'est pas disponible, le système utilisera les sources suivantes.",
       "language": "Paramètres de langue",
       "languageTips": "Rafraîchissement du navigateur pour prendre effet."
-    }
+    },
+    "DocsPrompt": "Saisissez votre question…"
   },
   "securitychecklist": {
     "Title": "Liste de vérification de sécurité",
@@ -924,7 +927,9 @@
     "unmaskedInfoTitle": "IPs démasquées",
     "unmaskedInfoMessage": "Faites attention lors de la partage des captures d'écran.",
     "SignInFailed": "Echec de connexion",
-    "SignInFailedReason": "Raison"
+    "SignInFailedReason": "Raison",
+    "IpGeoSourceFallbackTitle": "Source de géolocalisation IP changée",
+    "IpGeoSourceFallbackMessage": "{from} est momentanément indisponible — ce résultat provient temporairement de {to}."
   },
   "shortcutKeys": {
     "GoToTop": "Aller en haut",
@@ -943,6 +948,7 @@
     "IPCheck": "Vérification IP",
     "ToggleInfoMask": "Masquer/Démasquer les informations",
     "IPHistory": "Ouvrir l'historique des IP",
+    "ShareReport": "Ouvrir le partage de rapport",
     "Help": "Afficher les raccourcis clavier",
     "HelpNote": "Les personnes qui utilisent des raccourcis clavier sont vraiment géniales !",
     "GoNext": "Carte suivante",
@@ -951,7 +957,6 @@
     "RefreshRuleTests": "Actualiser les tests de règles",
     "CensorshipCheck": "Ouvrir le Test de censorship",
     "Preferences": "Ouvrir les Préférences",
-    "About": "Ouvrir À propos",
     "Whois": "Ouvrir la Recherche Whois",
     "ServiceStatus": "Ouvrir l'état des services",
     "InvisibilityTest": "Ouvrir le Test d'invisibilité",
@@ -959,7 +964,6 @@
     "MacChecker": "Ouvrir le Recherche de MAC",
     "BrowserInfo": "Ouvrir l'Info du navigateur",
     "fullScreenAdvancedTools": "Outils avancés en plein écran",
-    "Curl": "Ouvrir le Shell",
     "SecurityChecklist": "Ouvrir la Liste de sécurité"
   },
   "page": {
diff --git a/frontend/locales/ru.json b/frontend/locales/ru.json
index 71b5a5b7a..739141c1d 100644
--- a/frontend/locales/ru.json
+++ b/frontend/locales/ru.json
@@ -28,11 +28,12 @@
       "Benefit": "Преимущество",
       "Note1": "IPCheck.ing — продукт с открытым исходным кодом, которым можно пользоваться бесплатно.",
       "Note2": "Однако для предотвращения злоупотреблений некоторые функции ограничены. После входа вам будут доступны следующие преимущества:",
-      "Benefit1": "При использовании IPCheck.ing как источника IP-данных все поля отображаются полностью.",
-      "Benefit2": "Можно использовать тест незаметности.",
-      "Benefit3": "Можно использовать углублённый тест утечки DNS.",
+      "Benefit1": "При использовании IPCheck.ing как источника IP-данных все поля отображаются полностью",
+      "Benefit2": "Можно использовать тест незаметности",
+      "Benefit3": "Можно использовать углублённый тест утечки DNS",
       "Benefit4": "Можно просматривать свои значки достижений",
-      "Benefit5": "Снижаются ограничения доступа к некоторым функциям.",
+      "Benefit5": "Вы можете задавать вопросы IPChecking Copilot — нашему ИИ-помощнику",
+      "Benefit6": "Снижаются ограничения доступа к некоторым функциям",
       "FootNote": "Мы разрабатываем новые преимущества..."
     },
     "Achievements": {
@@ -151,6 +152,7 @@
     "SearchDocs": "Поиск по документации…",
     "DocsToolConfirm": "Показать ваши текущие результаты?",
     "DocsToolSummary": "Результаты со страницы прочитаны",
+    "AskCopilot": "Спросить IPChecking Copilot",
     "OpenDocs": "Открыть документацию",
     "DocsGreetingTitle": "Чем могу помочь?",
     "DocsGreetingSubtitle": "Спросите о MyIP: инструменты, ваши результаты или самостоятельный хостинг.",
@@ -188,7 +190,8 @@
       "ipDBTips": "Можно выбрать основной источник геолокации IP. Если он недоступен, система по очереди использует следующие источники.",
       "language": "Язык",
       "languageTips": "Изменение вступит в силу после обновления страницы."
-    }
+    },
+    "DocsPrompt": "Введите свой вопрос…"
   },
   "securitychecklist": {
     "Title": "Контрольный список безопасности",
@@ -924,7 +927,9 @@
     "unmaskedInfoTitle": "IP показаны",
     "unmaskedInfoMessage": "Будьте осторожны, публикуя снимки экрана.",
     "SignInFailed": "Не удалось войти",
-    "SignInFailedReason": "Причина"
+    "SignInFailedReason": "Причина",
+    "IpGeoSourceFallbackTitle": "Источник IP-геоданных переключён",
+    "IpGeoSourceFallbackMessage": "{from} временно недоступен — этот результат временно получен из {to}."
   },
   "shortcutKeys": {
     "GoToTop": "Перейти наверх",
@@ -943,6 +948,7 @@
     "IPCheck": "Запросить IP-адрес",
     "ToggleInfoMask": "Переключить скрытие сведений",
     "IPHistory": "Открыть панель истории IP",
+    "ShareReport": "Открыть панель отчёта",
     "Help": "Показать сочетания клавиш",
     "HelpNote": "Пользователи сочетаний клавиш — просто супер!",
     "GoNext": "Следующая карточка",
@@ -951,7 +957,6 @@
     "RefreshRuleTests": "Обновить проверки правил",
     "CensorshipCheck": "Открыть панель проверки цензуры",
     "Preferences": "Открыть настройки",
-    "About": "Открыть панель «О проекте»",
     "Whois": "Открыть панель поиска Whois",
     "ServiceStatus": "Открыть панель состояния сервисов",
     "InvisibilityTest": "Открыть панель теста незаметности",
@@ -959,7 +964,6 @@
     "MacChecker": "Открыть панель поиска MAC-адреса",
     "BrowserInfo": "Открыть панель сведений о браузере",
     "fullScreenAdvancedTools": "Расширенные инструменты во весь экран",
-    "Curl": "API командной строки",
     "SecurityChecklist": "Открыть панель контрольного списка безопасности"
   },
   "page": {
diff --git a/frontend/locales/security-checklist/zh.json b/frontend/locales/security-checklist/zh.json
index 9500f8384..a3a1f18c7 100644
--- a/frontend/locales/security-checklist/zh.json
+++ b/frontend/locales/security-checklist/zh.json
@@ -137,7 +137,7 @@
         "title": "网页浏览",
         "slug": "web-browsing",
         "description": "避免在线跟踪、审查和数据收集",
-        "intro": "互联网上的大多数网站都会使用某种形式的跟踪，通常是为了深入了解用户的行为和偏好。这些数据可能非常详细，因此对企业、政府和知识产权窃贼来说非常有价值。数据泄露和泄漏很常见，而对用户的网络活动进行去匿名化通常是一项微不足道的任务。\n\n有两种主要的跟踪方法：有状态（基于 cookie）和无状态（基于指纹）。Cookie 是存储在浏览器中的一小段信息，具有用于识别您的唯一 ID。浏览器指纹是一种高度准确的方法，可以识别和跟踪用户在网上任何地方的行踪。收集的信息非常全面，通常包括浏览器详细信息、操作系统、屏幕分辨率、支持的字体、插件、时区、语言和字体偏好，甚至硬件配置。\n\n本节概述了您可以采取的步骤，以更好地保护自己免受威胁，最大程度地减少在线跟踪并提高隐私性。",
+        "intro": "互联网上的大多数网站都会使用某种形式的跟踪，通常是为了深入了解用户的行为和偏好。这些数据可能非常详细，因此对企业、政府和知识产权窃贼来说非常有价值。数据泄露和泄露很常见，而对用户的网络活动进行去匿名化通常是一项微不足道的任务。\n\n有两种主要的跟踪方法：有状态（基于 cookie）和无状态（基于指纹）。Cookie 是存储在浏览器中的一小段信息，具有用于识别您的唯一 ID。浏览器指纹是一种高度准确的方法，可以识别和跟踪用户在网上任何地方的行踪。收集的信息非常全面，通常包括浏览器详细信息、操作系统、屏幕分辨率、支持的字体、插件、时区、语言和字体偏好，甚至硬件配置。\n\n本节概述了您可以采取的步骤，以更好地保护自己免受威胁，最大程度地减少在线跟踪并提高隐私性。",
         "checklist": [
             {
                 "point": "确保网站合法",
@@ -766,7 +766,7 @@
                 "slug": "networks-implement-a-network-wide-vpn"
             },
             {
-                "point": "防止 DNS 泄漏",
+                "point": "防止 DNS 泄露",
                 "priority": "Optional",
                 "details": "使用 VPN 时，仅使用 VPN 提供商或安全服务的 DNS 服务器非常重要。",
                 "slug": "networks-protect-against-dns-leaks"
diff --git a/frontend/locales/zh.json b/frontend/locales/zh.json
index b03b40c24..f314e169e 100644
--- a/frontend/locales/zh.json
+++ b/frontend/locales/zh.json
@@ -30,9 +30,10 @@
       "Note2": "但是，为了避免滥用，我们会限制一些功能。当你登录后，你将得到以下权益：",
       "Benefit1": "当你使用 IPCheck.ing 作为 IP 数据解析源时，完整显示所有字段",
       "Benefit2": "可以使用隐身测试",
-      "Benefit3": "可以使用深度 DNS 泄漏测试",
+      "Benefit3": "可以使用深度 DNS 泄露测试",
       "Benefit4": "可以看到自己获得的成就勋章",
-      "Benefit5": "减少部分功能的访问限制",
+      "Benefit5": "可以使用 AI 助手 IPChecking Copilot 提问",
+      "Benefit6": "减少部分功能的访问限制",
       "FootNote": "更多权益陆续开发中..."
     },
     "Achievements": {
@@ -142,7 +143,7 @@
     "Connectivity": "网络连通性",
     "ServiceStatus": "服务可用性",
     "WebRTC": "WebRTC 泄露测试",
-    "DNSLeakTest": "DNS 泄漏测试",
+    "DNSLeakTest": "DNS 泄露测试",
     "SpeedTest": "网速测试",
     "PingTest": "全球延迟",
     "MTRTest": "MTR 测试",
@@ -151,13 +152,14 @@
     "SearchDocs": "搜索文档…",
     "DocsToolConfirm": "把当前的检测结果给助手看？",
     "DocsToolSummary": "已读取页面上的检测结果",
+    "AskCopilot": "询问 IPChecking Copilot",
     "OpenDocs": "打开文档",
     "DocsGreetingTitle": "有什么可以帮你？",
     "DocsGreetingSubtitle": "关于 MyIP 的工具、测试结果或自部署，都可以问我。",
     "DocsQuestions": [
-      "我的 VPN 泄漏真实 IP 了吗？",
+      "我的 VPN 泄露真实 IP 了吗？",
       "为什么我的 IP 归属地不对？",
-      "对比我的 WebRTC 测试和 DNS 泄漏测试结果并给出建议",
+      "对比我的 WebRTC 测试和 DNS 泄露测试结果并给出建议",
       "MTR 结果怎么看？",
       "怎么部署一个自己的 MyIP？",
       "我想看更多帮助文档"
@@ -188,7 +190,8 @@
       "ipDBTips": "你可以选择你默认使用的 IP 地理位置数据源，如果你选定的不可用，系统会依次使用后续的数据源。",
       "language": "语言设置",
       "languageTips": "刷新浏览器后生效。"
-    }
+    },
+    "DocsPrompt": "请输入你要询问的问题"
   },
   "securitychecklist": {
     "Title": "安全检查清单",
@@ -479,15 +482,15 @@
     "Provider": "信息服务商"
   },
   "enhanceddnsleaktest": {
-    "Title": "深度 DNS 泄漏测试",
-    "Note": "你已经在首页的 DNS 泄漏测试中大致了解了当前是否存在 DNS 泄漏，以及 DNS 请求的出口地理归属。在这个深度测试里，我们会从更多维度进行检测：捕获更多 DNS 解析器出口 IP、检查这些解析器是否通过 ECS 把你真实 IP 段的前缀转发给了权威服务器、以及它们是否支持 DNSSEC，从而帮助你对自己的 DNS 链路安全性形成更完整的认识。",
+    "Title": "深度 DNS 泄露测试",
+    "Note": "你已经在首页的 DNS 泄露测试中大致了解了当前是否存在 DNS 泄露，以及 DNS 请求的出口地理归属。在这个深度测试里，我们会从更多维度进行检测：捕获更多 DNS 解析器出口 IP、检查这些解析器是否通过 ECS 把你真实 IP 段的前缀转发给了权威服务器、以及它们是否支持 DNSSEC，从而帮助你对自己的 DNS 链路安全性形成更完整的认识。",
     "Note2": "点击「开始测试」即可开始，通常几秒内就能得到结果。我们会在后台发起多次 DNS 探测，由我们的权威 DNS 服务器捕获你所使用的递归解析器出口 IP，一次测试通常可以捕获 20–40 条记录。若完全没有捕获到解析器，可能是浏览器的 DNS 缓存吃掉了请求，稍等片刻再试一次即可。",
     "Note3": "由于这是深度测试，页面里会出现一些较为专业的概念（例如 ECS、DNSSEC 等）。不用担心，运行测试后你可以参考下方的「字段说明」来了解每个字段的具体含义。",
     "Run": "开始测试",
     "RunAgain": "再测一次",
     "RunningProbes": "正在发起 DNS 探测...",
     "PollingResult": "正在收集结果...",
-    "FetchError": "获取 DNS 泄漏测试结果失败，请稍后重试。",
+    "FetchError": "获取 DNS 泄露测试结果失败，请稍后重试。",
     "Empty": "本次会话没有捕获到任何 DNS 解析器，可能是浏览器的 DNS 缓存吃掉了请求，请稍后重试。",
     "TableTitle": "捕获到的 DNS 查询记录",
     "DedupeToggle": "隐藏重复项",
@@ -522,7 +525,7 @@
     },
     "Legend": {
       "Title": "字段说明",
-      "ResolverIP": "实际与我们权威 DNS 服务器通信的递归解析器出口 IP。如果你使用 VPN，把它的 ASN 与你当前 VPN 出口的 ASN 做对比，就能看出 DNS 请求是否绕过了 VPN 通道（即发生了泄漏）。",
+      "ResolverIP": "实际与我们权威 DNS 服务器通信的递归解析器出口 IP。如果你使用 VPN，把它的 ASN 与你当前 VPN 出口的 ASN 做对比，就能看出 DNS 请求是否绕过了 VPN 通道（即发生了泄露）。",
       "QueryType": "解析器向权威服务器请求的记录类型（A、AAAA、HTTPS 等）。浏览器通常会同时发起 A 与 AAAA 查询。",
       "Transport": "DNS 默认走 UDP；出现 TCP 通常意味着响应过大，而响应过大往往是因为带上了 DNSSEC 相关记录。",
       "ECS": "EDNS Client Subnet —— 部分递归 DNS 会在向上游转发查询时附带你真实 IP 的一段前缀（通常是 IPv4 的 /24 或 IPv6 的 /48）。这意味着你的 IP 段会被 DNS 链路上的权威服务器获知，可能用于 CDN 的就近调度，也可能在一定程度上削弱匿名性。",
@@ -555,7 +558,7 @@
     "SaveAsImage": "保存为图片",
     "RefreshConnectivityTests": "刷新连通性测试",
     "RefreshWebRTC": "刷新 WebRTC 泄露测试",
-    "RefreshDNSLeakTest": "刷新 DNS 泄漏测试",
+    "RefreshDNSLeakTest": "刷新 DNS 泄露测试",
     "SpeedTestButton": "开始/暂停网速测试",
     "ShowASNInfo": "显示 AS 详细信息",
     "ShowASNHistory": "显示 ASN 历史",
@@ -594,12 +597,12 @@
       "Heading": "MyIP 网络诊断报告",
       "Intro": "本报告由 MyIP（{origin}）于 {time} 生成，数据来自在用户浏览器中运行的网络测试。字段名为稳定的 schema 标识符；所有延迟数值单位为毫秒。",
       "Masked": "注意：出于隐私考虑，报告中的 IP 地址已遮盖尾段（IPv4 末段、IPv6 接口位，以 \"x\" 表示）。",
-      "Instruction": "请基于以上数据分析该网络的健康状况，指出异常项（DNS 泄漏、WebRTC 暴露、代理/VPN 特征、丢包、高延迟、路由问题等），并给出具体的排查建议。",
+      "Instruction": "请基于以上数据分析该网络的健康状况，指出异常项（DNS 泄露、WebRTC 暴露、代理/VPN 特征、丢包、高延迟、路由问题等），并给出具体的排查建议。",
       "Sections": {
         "ipinfo": "多个独立来源看到的公网 IP（存在代理或分流时不同来源可能不一致）。",
         "connectivity": "浏览器对知名网站的可达性探测；timeMs 为展示的往返耗时，minTimeMs 为多轮中的最佳值。",
-        "webrtc": "通过 WebRTC STUN 暴露的 IP——若与主公网 IP 不同，真实地址可能绕过代理/VPN 泄漏。",
-        "dnsleak": "实际应答浏览器查询的 DNS 解析器出口 IP——解析器不属于用户的 ISP/VPN 供应商即为 DNS 泄漏迹象。",
+        "webrtc": "通过 WebRTC STUN 暴露的 IP——若与主公网 IP 不同，真实地址可能绕过代理/VPN 泄露。",
+        "dnsleak": "实际应答浏览器查询的 DNS 解析器出口 IP——解析器不属于用户的 ISP/VPN 供应商即为 DNS 泄露迹象。",
         "speedtest": "对 Cloudflare 测得的带宽、延迟与负载延迟（bufferbloat）；分数衡量流媒体/游戏/实时通话体验，越高越好。",
         "pingtest": "全球 Globalping 探针对用户 IP 的 ICMP ping 统计。",
         "mtrtest": "全球探针到用户 IP 的逐跳 MTR 路由追踪；中间跳的丢包可能只是 ICMP 限速，从某一跳起持续丢包才代表真实问题。",
@@ -812,7 +815,7 @@
   },
   "dnsleaktest": {
     "Name": "DNS 出口检测",
-    "Title": "DNS 泄漏测试",
+    "Title": "DNS 泄露测试",
     "Note": "DNS 泄露（DNS Leaks）的意思是，当你挂上 VPN/代理后，你解析域名时，依然通过当地的运营商进行解析，这时就有 DNS 泄露的风险。",
     "Note2": "泄露测试的方法是通过访问新生成的域名，检测你是通过哪个地区的 DNS 出口进行解析，如果返回的出口区域和你当地的运营商区域相同，则有 DNS 泄露风险，你可能需要修改 VPN/代理设置。",
     "EndpointCountry": "出口地区",
@@ -820,8 +823,8 @@
     "StatusError": "测试出错",
     "EnhancedBanner": {
       "Title": "想做更深入的检查？",
-      "Note": "如果想进一步了解你正在使用的所有递归解析器是谁、它们的 ASN 归属、是否通过 ECS 把你真实 IP 的前缀转发给了上游、以及是否启用了 DNSSEC 校验，可以打开下方的「深度 DNS 泄漏测试」。",
-      "CTA": "打开深度 DNS 泄漏测试"
+      "Note": "如果想进一步了解你正在使用的所有递归解析器是谁、它们的 ASN 归属、是否通过 ECS 把你真实 IP 的前缀转发给了上游、以及是否启用了 DNSSEC 校验，可以打开下方的「深度 DNS 泄露测试」。",
+      "CTA": "打开深度 DNS 泄露测试"
     }
   },
   "speedtest": {
@@ -924,7 +927,9 @@
     "unmaskedInfoTitle": "IP 信息已显示",
     "unmaskedInfoMessage": "分享截图时请注意隐私。",
     "SignInFailed": "登录失败",
-    "SignInFailedReason": "原因"
+    "SignInFailedReason": "原因",
+    "IpGeoSourceFallbackTitle": "IP 解析数据源已切换",
+    "IpGeoSourceFallbackMessage": "解析源 {from} 暂时不可用，本次结果临时改由 {to} 提供。"
   },
   "shortcutKeys": {
     "GoToTop": "回到顶部",
@@ -934,15 +939,16 @@
     "RefreshIPCard": "刷新某张 IP 卡片",
     "RefreshConnectivityTests": "刷新连通性测试",
     "RefreshWebRTC": "刷新 WebRTC 泄露测试",
-    "RefreshDNSLeakTest": "刷新 DNS 泄漏测试",
+    "RefreshDNSLeakTest": "刷新 DNS 泄露测试",
     "SpeedTestButton": "开始/暂停网速测试",
     "PingTest": "打开全球延迟测试面板",
-    "MTRTest": "打开全球路由测试面板",
+    "MTRTest": "打开 MTR 测试面板",
     "RuleTest": "打开规则测试面板",
     "DNSResolver": "打开 DNS 解析器面板",
     "IPCheck": "IP 查询",
     "ToggleInfoMask": "切换信息隐藏",
     "IPHistory": "打开 IP 历史记录面板",
+    "ShareReport": "打开分享报告面板",
     "Help": "显示快捷键",
     "HelpNote": "使用快捷键的人，是喜欢效率的人，你真棒！",
     "GoNext": "下一张卡片",
@@ -951,15 +957,13 @@
     "RefreshRuleTests": "刷新规则测试",
     "CensorshipCheck": "打开封锁测试面板",
     "Preferences": "打开偏好设置面板",
-    "About": "打开关于页面",
     "Whois": "打开 Whois 查询面板",
     "ServiceStatus": "打开服务可用性面板",
     "InvisibilityTest": "打开隐身测试面板",
-    "EnhancedDnsLeakTest": "打开深度 DNS 泄漏测试面板",
+    "EnhancedDnsLeakTest": "打开深度 DNS 泄露测试面板",
     "MacChecker": "打开物理地址查询面板",
     "BrowserInfo": "打开浏览器信息面板",
     "fullScreenAdvancedTools": "全屏展开高级工具面板",
-    "Curl": "命令行 API",
     "SecurityChecklist": "打开安全检查清单"
   },
   "page": {
diff --git a/frontend/store.js b/frontend/store.js
index 19de47089..128fad3c1 100644
--- a/frontend/store.js
+++ b/frontend/store.js
@@ -4,7 +4,7 @@ import { loadFirebaseAuth } from './firebase-init.js';
 import { writeAuthHint } from './utils/auth-hint.js';
 import i18n from './locales/i18n.js';
 import { createInitialAchievementsState } from './data/achievements.js';
-import { createInitialIpDBs, buildDbUrl } from './data/ip-databases.js';
+import { createInitialIpDBs, buildDbUrl, applyConfigAvailability, nearestEnabledId } from './data/ip-databases.js';
 import { createDefaultPreferences, migrateLegacyPreferences, PREFS_STORAGE_KEY, LEGACY_PREFS_KEYS } from './data/default-preferences.js';
 import { createMountingStatus, createLoadingStatus, DEFAULT_SECTION } from './data/sections.js';
 import { fetchWithTimeout } from './utils/fetch-with-timeout.js';
@@ -127,13 +127,6 @@ export const useMainStore = defineStore('main', {
         document.documentElement.classList.toggle('dark', !!value);
       }
     },
-    // set IP database enable status
-    updateIPDBs({ id, enabled }) {
-      const index = this.ipDBs.findIndex(db => db.id === id);
-      if (index !== -1) {
-        this.ipDBs[index].enabled = enabled;
-      }
-    },
     // set user preferences
     setPreferences(userPreferences) {
       this.userPreferences = userPreferences;
@@ -185,6 +178,21 @@ export const useMainStore = defineStore('main', {
         })
         .then(data => {
           this.configs = data;
+          // Configs flags are the only thing that flips ipDBs.enabled. If the
+          // stored preference is no longer configured, migrate it to the
+          // nearest available source (the one case that rewrites the user's
+          // setting) and say so via toast. Failed fetch → all stay enabled.
+          this.ipDBs = applyConfigAvailability(this.ipDBs, data);
+          const preferred = this.userPreferences.ipGeoSource;
+          const nearest = nearestEnabledId(preferred, this.ipDBs);
+          if (nearest !== preferred) {
+            const from = this.ipDBs.find(db => db.id === preferred)?.text || `#${preferred}`;
+            const to = this.ipDBs.find(db => db.id === nearest)?.text || `#${nearest}`;
+            this.updatePreference('ipGeoSource', nearest);
+            this.setAlert(true, 'text-warning',
+              t('alert.IpGeoSourceFallbackMessage', { from, to }),
+              t('alert.IpGeoSourceFallbackTitle'), 5000);
+          }
         })
         .catch(error => console.error('Fetching configs failed: ', error));
     },
diff --git a/frontend/style/style.css b/frontend/style/style.css
index a7ee9360d..8ea029b33 100644
--- a/frontend/style/style.css
+++ b/frontend/style/style.css
@@ -252,76 +252,23 @@ footer {
   z-index: 10001 !important;
 }
 /* GitBook Docs Assistant embed (loaded on demand by use-docs-assistant.js).
-   The embed anchors its launcher and panel bottom-right, where our FAB stack
-   lives — move both to the bottom-LEFT, with the launcher on the FAB dock's
-   baseline (bottom-9 = 2.25rem). The panel must clear the launcher by the
-   same amount the embed leaves by default, so it stacks on top of it rather
-   than overlapping: launcher height (2.5rem) + the embed's own gap (0.75rem).
-   The launcher doubles as the panel's toggle, which is how it gets closed. */
-#gitbook-widget-button,
-#gitbook-widget-window {
-  --jn-gb-anchor: 2.25rem;
-  /* Mirror of FloatingDock's inset: it hugs the 1600px content area's right
-     edge with an 18px gutter, so past 1600px it steps inward by half the
-     overflow. max() keeps that at a plain 18px on narrower viewports. */
-  --jn-gb-inset: max(18px, (100vw - 1600px) / 2 + 18px);
-  right: auto !important;
-  left: var(--jn-gb-inset) !important;
-}
-
-/* Launcher restyled to match the FAB dock's icon buttons: a 2.25rem circle
-   (size-9) with the same elevation. The embed ships it as a pill with a text
-   label, so the label is dropped and the padding/width constraints that came
-   with it are reset — otherwise the circle squashes the icon. The icon keeps
-   its own 1rem box (size-4, as in buttonVariants) rather than scaling with
-   the button. */
+   The stock launcher is hidden — widgets/DocsAssistant.vue renders our own
+   toggle in its place, styled like the FAB dock's buttons. The panel is
+   pinned bottom-LEFT (the FAB stack owns the bottom-right), mirroring the
+   dock's inset off the 1600px content area and clearing the toggle by its
+   height plus a gap, with a height cap so it never runs off the top on
+   phones. dvh tracks mobile browser chrome as it collapses; the vh line is
+   the fallback for browsers without it. */
 #gitbook-widget-button {
-  bottom: var(--jn-gb-anchor) !important;
-  width: 2.25rem !important;
-  height: 2.25rem !important;
-  min-width: 0 !important;
-  min-height: 0 !important;
-  max-width: none !important;
-  padding: 0 !important;
-  gap: 0 !important;
-  border-radius: 9999px !important;
-  display: inline-flex !important;
-  align-items: center !important;
-  justify-content: center !important;
-  box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1) !important;
-}
-
-/* The embed names these parts inconsistently across versions, so match both
-   an id and a class of the same name. */
-#gitbook-widget-button-label,
-#gitbook-widget-button .gitbook-widget-button-label {
   display: none !important;
 }
 
-/* flex:none is the point — inside a 2.25rem circle a flexible child would be
-   squeezed. The 1rem box matches the FAB icons (size-4 in buttonVariants). */
-#gitbook-widget-button-icon,
-#gitbook-widget-button .gitbook-widget-button-icon,
-#gitbook-widget-button > svg {
-  width: 1rem !important;
-  height: 1rem !important;
-  flex: none !important;
-  margin: 0 !important;
-}
-
-#gitbook-widget-button-icon svg,
-#gitbook-widget-button .gitbook-widget-button-icon svg {
-  width: 100% !important;
-  height: 100% !important;
-  display: block !important;
-}
-
 #gitbook-widget-window {
+  --jn-gb-anchor: 2.25rem;
+  --jn-gb-inset: max(18px, (100vw - 1600px) / 2 + 18px);
+  right: auto !important;
+  left: var(--jn-gb-inset) !important;
   bottom: calc(var(--jn-gb-anchor) + 3.25rem) !important;
-  /* Raising the panel above the launcher eats into its headroom, so cap the
-     height to what is left — otherwise a tall panel runs off the top of the
-     screen on phones. dvh tracks mobile browser chrome as it collapses; the
-     vh line is the fallback for browsers without it. */
   max-height: calc(100vh - var(--jn-gb-anchor) - 3.25rem - env(safe-area-inset-top) - 1rem) !important;
   max-height: calc(100dvh - var(--jn-gb-anchor) - 3.25rem - env(safe-area-inset-top) - 1rem) !important;
 }
diff --git a/frontend/utils/getips/cloudflare-v4.js b/frontend/utils/getips/cloudflare-v4.js
index b727a7de0..4054f3bf6 100644
--- a/frontend/utils/getips/cloudflare-v4.js
+++ b/frontend/utils/getips/cloudflare-v4.js
@@ -1,5 +1,6 @@
 import { isValidIP } from '@/utils/valid-ip.js';
 import { fetchWithTimeout } from '@/utils/fetch-with-timeout.js';
+import { parseTrace } from '@/utils/parse-trace.js';
 import { getIPFromMyExternalIP_V4 } from "./myexternalip-v4";
 
 // Get IPv4 address from Cloudflare
@@ -7,12 +8,7 @@ const getIPFromCloudflare_V4 = async () => {
     try {
         const response = await fetchWithTimeout("https://1.0.0.1/cdn-cgi/trace");
         const data = await response.text();
-        const lines = data.split("\n");
-        const ipLine = lines.find((line) => line.startsWith("ip="));
-        let ip = "";
-        if (ipLine) {
-            ip = ipLine.split("=")[1];
-        }
+        const ip = parseTrace(data).ip ?? "";
         const source = "Cloudflare IPv4";
         if (isValidIP(ip)) {
             return {
diff --git a/frontend/utils/getips/cloudflare-v6.js b/frontend/utils/getips/cloudflare-v6.js
index ad9e15a0c..7128870b4 100644
--- a/frontend/utils/getips/cloudflare-v6.js
+++ b/frontend/utils/getips/cloudflare-v6.js
@@ -1,5 +1,6 @@
 import { isValidIP } from '@/utils/valid-ip.js';
 import { fetchWithTimeout } from '@/utils/fetch-with-timeout.js';
+import { parseTrace } from '@/utils/parse-trace.js';
 import { getIPFromMyExternalIP_V6 } from "./myexternalip-v6";
 
 // Get IPv6 address from Cloudflare
@@ -7,12 +8,7 @@ const getIPFromCloudflare_V6 = async () => {
     try {
         const response = await fetchWithTimeout("https://[2606:4700:4700::1111]/cdn-cgi/trace");
         const data = await response.text();
-        const lines = data.split("\n");
-        const ipLine = lines.find((line) => line.startsWith("ip="));
-        let ip = "";
-        if (ipLine) {
-            ip = ipLine.split("=")[1];
-        }
+        const ip = parseTrace(data).ip ?? "";
         const source = "Cloudflare IPv6";
         if (isValidIP(ip)) {
             return {
diff --git a/frontend/utils/getips/ipchecking4.js b/frontend/utils/getips/ipchecking4.js
index 93215a6c4..7ba15ffe8 100644
--- a/frontend/utils/getips/ipchecking4.js
+++ b/frontend/utils/getips/ipchecking4.js
@@ -1,5 +1,6 @@
 import { isValidIP } from '@/utils/valid-ip.js';
 import { fetchWithTimeout } from '@/utils/fetch-with-timeout.js';
+import { parseTrace } from '@/utils/parse-trace.js';
 import { getIPFromIpify_V4 } from "./ipify-v4";
 
 // Get IPv4 address from IPCheck.ing
@@ -51,13 +52,7 @@ const getFromTrace = async () => {
     try {
         const response = await fetchWithTimeout("https://4.ipcheck.ing/cdn-cgi/trace");
         const data = await response.text();
-        const lines = data.split("\n");
-        const ipLine = lines.find((line) => line.startsWith("ip="));
-        let ip = "";
-        if (ipLine) {
-            ip = ipLine.split("=")[1];
-        }
-        return ip;
+        return parseTrace(data).ip ?? "";
     } catch (error) {
         console.warn("Error fetching IP from IPCheck.ing IPv4 Trace:", error);
         throw error;
diff --git a/frontend/utils/getips/ipchecking6.js b/frontend/utils/getips/ipchecking6.js
index 67e887378..55f1507f9 100644
--- a/frontend/utils/getips/ipchecking6.js
+++ b/frontend/utils/getips/ipchecking6.js
@@ -1,5 +1,6 @@
 import { isValidIP } from '@/utils/valid-ip.js';
 import { fetchWithTimeout } from '@/utils/fetch-with-timeout.js';
+import { parseTrace } from '@/utils/parse-trace.js';
 import { getIPFromIpify_V6 } from "./ipify-v6";
 
 // Get IPv6 address from IPCheck.ing
@@ -51,13 +52,7 @@ const getFromTrace = async () => {
     try {
         const response = await fetchWithTimeout("https://6.ipcheck.ing/cdn-cgi/trace");
         const data = await response.text();
-        const lines = data.split("\n");
-        const ipLine = lines.find((line) => line.startsWith("ip="));
-        let ip = "";
-        if (ipLine) {
-            ip = ipLine.split("=")[1];
-        }
-        return ip;
+        return parseTrace(data).ip ?? "";
     } catch (error) {
         console.warn("Error fetching IP from IPCheck.ing IPv6 Trace:", error);
         throw error;
diff --git a/frontend/utils/getips/ipchecking64.js b/frontend/utils/getips/ipchecking64.js
index 21d5eb500..cf5a43307 100644
--- a/frontend/utils/getips/ipchecking64.js
+++ b/frontend/utils/getips/ipchecking64.js
@@ -1,5 +1,6 @@
 import { isValidIP } from '@/utils/valid-ip.js';
 import { fetchWithTimeout } from '@/utils/fetch-with-timeout.js';
+import { parseTrace } from '@/utils/parse-trace.js';
 
 // Get IPv6/4 address from IPCheck.ing
 const getIPFromIPChecking64 = async (originalSite) => {
@@ -48,13 +49,7 @@ const getFromTrace = async () => {
     try {
         const response = await fetchWithTimeout("https://64.ipcheck.ing/cdn-cgi/trace");
         const data = await response.text();
-        const lines = data.split("\n");
-        const ipLine = lines.find((line) => line.startsWith("ip="));
-        let ip = "";
-        if (ipLine) {
-            ip = ipLine.split("=")[1];
-        }
-        return ip;
+        return parseTrace(data).ip ?? "";
     } catch (error) {
         console.warn("Error fetching IP from IPCheck.ing IPv6/4 Trace:", error);
         throw error;
diff --git a/frontend/utils/parse-trace.js b/frontend/utils/parse-trace.js
new file mode 100644
index 000000000..ddf6a723e
--- /dev/null
+++ b/frontend/utils/parse-trace.js
@@ -0,0 +1,24 @@
+// Shared parser for Cloudflare /cdn-cgi/trace responses (key=value lines).
+//
+// Every trace consumer — the getips/ IP sources, SpeedTest, RuleTest — goes
+// through this instead of hand-splitting lines. Values are trimmed because a
+// body that crossed a rewriting middlebox (TLS-decrypting proxy, corporate
+// gateway) can arrive with CRLF line endings, and a trailing "\r" on the ip
+// value would fail IP validation downstream.
+
+// Parse a trace body into a { key: value } map. Non-string input yields {}.
+// Each line splits on its first "=" only (values may themselves contain "=");
+// keys and values are trimmed; lines without a key are skipped. Missing keys
+// simply stay absent, so callers read them as undefined.
+export const parseTrace = (text) => {
+    const fields = {};
+    if (typeof text !== 'string') return fields;
+    for (const line of text.split('\n')) {
+        const eq = line.indexOf('=');
+        if (eq <= 0) continue;
+        const key = line.slice(0, eq).trim();
+        if (!key) continue;
+        fields[key] = line.slice(eq + 1).trim();
+    }
+    return fields;
+};
diff --git a/tests/api-handlers.test.js b/tests/api-handlers.test.js
index 7b9c06e2c..84f312a70 100644
--- a/tests/api-handlers.test.js
+++ b/tests/api-handlers.test.js
@@ -29,6 +29,7 @@ import serviceStatusHandler, {
     detailHandler as serviceStatusDetailHandler,
 } from '../api/service-status.js';
 import createReportHandler, { getReport as getReportHandler, normalizeTtlDays } from '../api/share-report.js';
+import { modifyJsonForIPAPI } from '../api/ipapi-is.js';
 import { REPORT_VERSION } from '../common/report-schema.js';
 
 // -- shared test utilities ------------------------------------------------
@@ -338,6 +339,45 @@ describe('ipcheck-ing handler', () => {
     });
 });
 
+// -- ipapi-is normalizer --------------------------------------------------
+// Pure transform, no fetch involved.
+
+describe('ipapi-is normalize', () => {
+    it('maps a fully populated upstream payload', () => {
+        const out = modifyJsonForIPAPI({
+            ip: '8.8.8.8',
+            location: {
+                city: 'Mountain View', state: 'California', country: 'United States',
+                country_code: 'US', latitude: 37.4, longitude: -122.07,
+            },
+            asn: { asn: 15169, org: 'Google LLC' },
+            is_datacenter: true,
+        });
+        assert.equal(out.city, 'Mountain View');
+        assert.equal(out.country_code, 'US');
+        assert.equal(out.asn, 'AS15169');
+        assert.equal(out.isHosting, true);
+        assert.equal(out.isProxy, false);
+    });
+
+    it('falls back to N/A when the upstream places no location', () => {
+        // Anycast / bogon addresses come back 200 with location: null.
+        const out = modifyJsonForIPAPI({ ip: '104.28.212.153', location: null });
+        assert.equal(out.ip, '104.28.212.153');
+        for (const key of ['city', 'region', 'country', 'country_name', 'country_code', 'latitude', 'longitude']) {
+            assert.equal(out[key], 'N/A', `${key} should degrade to N/A`);
+        }
+        assert.equal(out.asn, 'N/A');
+        assert.equal(out.isHosting, false);
+        assert.equal(out.isProxy, false);
+    });
+
+    it('flags a proxy when any of the vpn / tor / proxy bits is set', () => {
+        assert.equal(modifyJsonForIPAPI({ location: {}, is_vpn: true }).isProxy, true);
+        assert.equal(modifyJsonForIPAPI({ location: {}, is_tor: true }).isProxy, true);
+    });
+});
+
 // -- service-status handlers ----------------------------------------------
 
 describe('service-status overview handler', () => {
diff --git a/tests/composable-shortcuts.test.js b/tests/composable-shortcuts.test.js
index 699e52390..01d660e12 100644
--- a/tests/composable-shortcuts.test.js
+++ b/tests/composable-shortcuts.test.js
@@ -39,10 +39,8 @@ function makeRefs() {
   const calls = {
     queryOpen: 0,
     helpOpen: 0,
-    additionalCurl: 0,
-    footerAbout: 0,
+    shareOpen: 0,
     speedTest: 0,
-    navPrefs: 0,
     advancedNavigate: [],
     advancedFullScreen: 0,
     ipRefresh: [],
@@ -59,12 +57,9 @@ function makeRefs() {
 
   return {
     refs: {
-      navBarRef:         ref({ OpenPreferences: () => { calls.navPrefs += 1; } }),
-      preferencesRef:    ref({}),
       queryIPRef:        ref({ openModal: () => { calls.queryOpen += 1; } }),
       helpModalRef:      ref({ openModal: () => { calls.helpOpen += 1; }, keyMap: null }),
-      additionalRef:     ref({ openCurlModal: () => { calls.additionalCurl += 1; } }),
-      footerRef:         ref({ openAbout: () => { calls.footerAbout += 1; } }),
+      shareReportRef:    ref({ openDialog: () => { calls.shareOpen += 1; } }),
       speedTestRef:      ref({ speedTestController: () => { calls.speedTest += 1; } }),
       advancedToolsRef,
       IPCheckRef:        ref({
@@ -171,6 +166,14 @@ describe('useShortcuts()', () => {
     assert.equal(emitted, 1);
   });
 
+  it('"e" opens the share report dialog', () => {
+    const { keyMap, calls } = loadAndGetKeyMap();
+    const entry = keyMap.findLast((e) => e.keys === 'e');
+    assert.ok(entry, '"e" key should be registered');
+    entry.action();
+    assert.equal(calls.shareOpen, 1);
+  });
+
   it('"h" toggles info mask only when infos loaded', () => {
     const { keyMap, calls } = loadAndGetKeyMap();
     const entry = keyMap.findLast((e) => e.keys === 'h');
diff --git a/tests/ip-databases.test.js b/tests/ip-databases.test.js
index 8c365655e..a5005a2f7 100644
--- a/tests/ip-databases.test.js
+++ b/tests/ip-databases.test.js
@@ -5,6 +5,8 @@ import {
   IP_DATABASES,
   createInitialIpDBs,
   buildDbUrl,
+  applyConfigAvailability,
+  nearestEnabledId,
 } from '../frontend/data/ip-databases.js';
 
 describe('IP_DATABASES', () => {
@@ -59,3 +61,59 @@ describe('buildDbUrl()', () => {
     assert.equal(buildDbUrl({}, '1.1.1.1', 'en'), null);
   });
 });
+
+describe('applyConfigAvailability()', () => {
+  // Shape of a real /api/configs payload (booleans only).
+  const configs = { ipChecking: true, ipInfo: false, ipapiis: false, ip2location: true };
+
+  it('follows the configKey flag for keyed sources', () => {
+    const out = applyConfigAvailability(createInitialIpDBs(), configs);
+    const byId = Object.fromEntries(out.map((db) => [db.id, db.enabled]));
+    assert.equal(byId[0], true);   // ipChecking: true
+    assert.equal(byId[1], false);  // ipInfo: false
+    assert.equal(byId[3], false);  // ipapiis: false
+    assert.equal(byId[4], true);   // ip2location: true
+  });
+
+  it('keeps key-free sources always enabled', () => {
+    const allOff = applyConfigAvailability(createInitialIpDBs(),
+      { ipChecking: false, ipInfo: false, ipapiis: false, ip2location: false });
+    for (const id of [2, 5, 6]) {
+      assert.equal(allOff.find((db) => db.id === id).enabled, true, `id ${id} must stay enabled`);
+    }
+  });
+
+  it('returns fresh entries without mutating the input', () => {
+    const input = createInitialIpDBs();
+    const out = applyConfigAvailability(input, configs);
+    assert.notEqual(out, input);
+    assert.notEqual(out[1], input[1]);
+    assert.equal(input[1].enabled, true, 'input must be untouched');
+  });
+});
+
+describe('nearestEnabledId()', () => {
+  const dbs = (enabledIds) =>
+    createInitialIpDBs().map((db) => ({ ...db, enabled: enabledIds.includes(db.id) }));
+
+  it('keeps the preference when it is still available', () => {
+    assert.equal(nearestEnabledId(3, dbs([0, 3, 6])), 3);
+  });
+
+  it('walks forward to the next available source', () => {
+    assert.equal(nearestEnabledId(1, dbs([0, 4, 5])), 4);
+  });
+
+  it('wraps around past the end of the list', () => {
+    assert.equal(nearestEnabledId(6, dbs([1])), 1);
+  });
+
+  it('starts from the head for unknown ids', () => {
+    assert.equal(nearestEnabledId(42, dbs([2, 5])), 2);
+  });
+
+  it('leaves the preference unchanged when nothing is enabled', () => {
+    assert.equal(nearestEnabledId(3, dbs([])), 3);
+    assert.equal(nearestEnabledId(0, []), 0);
+  });
+});
diff --git a/tests/parse-trace.test.js b/tests/parse-trace.test.js
new file mode 100644
index 000000000..aa4eda30c
--- /dev/null
+++ b/tests/parse-trace.test.js
@@ -0,0 +1,58 @@
+// Tests for frontend/utils/parse-trace.js — the shared /cdn-cgi/trace parser
+// used by the getips/ sources, SpeedTest and RuleTest.
+
+import assert from 'node:assert/strict';
+import { describe, it } from 'node:test';
+
+import { parseTrace } from '../frontend/utils/parse-trace.js';
+
+// Shape of a real trace response (LF-joined below where a test needs it).
+const TRACE_LINES = [
+    'fl=633f90',
+    'h=speed.cloudflare.com',
+    'ip=203.0.113.7',
+    'ts=1785340826.000',
+    'colo=SIN',
+    'loc=SG',
+];
+
+describe('parseTrace', () => {
+    it('parses a plain LF trace body into a key/value map', () => {
+        const out = parseTrace(TRACE_LINES.join('\n'));
+        assert.equal(out.ip, '203.0.113.7');
+        assert.equal(out.colo, 'SIN');
+        assert.equal(out.loc, 'SG');
+    });
+
+    it('tolerates CRLF line endings from rewriting middleboxes', () => {
+        // A TLS-decrypting proxy can re-serialize the body with \r\n; the
+        // trailing \r must not survive into the value (it would fail
+        // isValidIP downstream).
+        const out = parseTrace(TRACE_LINES.join('\r\n'));
+        assert.equal(out.ip, '203.0.113.7');
+        assert.equal(out.loc, 'SG');
+    });
+
+    it('splits on the first = only, keeping later ones in the value', () => {
+        const out = parseTrace('uag=Mozilla/5.0 (a=b; c=d)\nkex=X25519');
+        assert.equal(out.uag, 'Mozilla/5.0 (a=b; c=d)');
+        assert.equal(out.kex, 'X25519');
+    });
+
+    it('keeps an empty value distinct from an absent key', () => {
+        const out = parseTrace('ip=\ncolo=SIN');
+        assert.equal(out.ip, '');
+        assert.equal(out.loc, undefined);
+    });
+
+    it('skips blank lines and lines without a key', () => {
+        const out = parseTrace('\nip=1.2.3.4\n\n=orphan\nnokey\n');
+        assert.deepEqual(out, { ip: '1.2.3.4' });
+    });
+
+    it('returns an empty map for non-string input', () => {
+        assert.deepEqual(parseTrace(undefined), {});
+        assert.deepEqual(parseTrace(null), {});
+        assert.deepEqual(parseTrace(42), {});
+    });
+});
diff --git a/tests/rdap-ip.test.js b/tests/rdap-ip.test.js
index 4c365be8d..116886f9e 100644
--- a/tests/rdap-ip.test.js
+++ b/tests/rdap-ip.test.js
@@ -1,11 +1,12 @@
 // Coverage for the IP half of common/rdap.js — bootstrap endpoint
-// selection (longest-prefix CIDR match) and the RDAP-JSON → WHOIS-like
-// `__raw` text formatter. Network calls (rdapIp itself) are out of scope.
+// selection (longest-prefix CIDR match), the RDAP-JSON → WHOIS-like
+// `__raw` text formatter, and rdapIp's query-URL shape (fetch stubbed;
+// real network stays out of scope).
 
 import assert from 'node:assert/strict';
-import { describe, it } from 'node:test';
+import { describe, it, mock } from 'node:test';
 
-import { findIpEndpoint, formatIpNetwork } from '../common/rdap.js';
+import { findIpEndpoint, formatIpNetwork, rdapIp } from '../common/rdap.js';
 
 // Shaped like IANA's ipv4.json / ipv6.json `services` arrays:
 // [[cidr, …], [url, …]] per registry.
@@ -127,3 +128,24 @@ describe('formatIpNetwork', () => {
         assert.equal(formatIpNetwork({}).startsWith('NetRange: N/A - N/A'), true);
     });
 });
+
+describe('rdapIp — query URL shape', () => {
+    it('keeps IPv6 colons literal in the path (some RIR delegates 400 on %3A)', async () => {
+        const jsonResponse = (body) => ({ ok: true, status: 200, json: async () => body });
+        const fetchMock = mock.method(globalThis, 'fetch', async (url) => {
+            if (String(url).startsWith('https://data.iana.org/rdap/')) {
+                return jsonResponse({ services: [[['2400::/12'], ['https://rdap.apnic.net/']]] });
+            }
+            return jsonResponse({ startAddress: '2404::', endAddress: '2404:ffff::' });
+        });
+        try {
+            await rdapIp('2404:c0:2520::1');
+            const queried = fetchMock.mock.calls
+                .map((c) => String(c.arguments[0]))
+                .find((u) => u.includes('/ip/'));
+            assert.equal(queried, 'https://rdap.apnic.net/ip/2404:c0:2520::1');
+        } finally {
+            fetchMock.mock.restore();
+        }
+    });
+});
diff --git a/tests/store.test.js b/tests/store.test.js
index b64baf3da..743f9c9cb 100644
--- a/tests/store.test.js
+++ b/tests/store.test.js
@@ -95,20 +95,6 @@ describe('store — dark mode side effect', () => {
 });
 
 describe('store — IPDBs / allIPs', () => {
-  it('updateIPDBs flips the enabled flag of a matching entry', () => {
-    const s = useMainStore();
-    const firstId = s.ipDBs[0].id;
-    assert.equal(s.ipDBs[0].enabled, true);
-    s.updateIPDBs({ id: firstId, enabled: false });
-    assert.equal(s.ipDBs[0].enabled, false);
-  });
-
-  it('updateIPDBs ignores unknown ids', () => {
-    const s = useMainStore();
-    const snapshot = s.ipDBs.map((d) => d.enabled);
-    s.updateIPDBs({ id: 9999, enabled: false });
-    assert.deepEqual(s.ipDBs.map((d) => d.enabled), snapshot);
-  });
 
   it('updateAllIPs dedupes by ip and back-fills a missing country', () => {
     const s = useMainStore();
@@ -224,7 +210,8 @@ describe('store — getters', () => {
   it('activeSources returns only enabled databases', () => {
     const s = useMainStore();
     const firstId = s.ipDBs[0].id;
-    s.updateIPDBs({ id: firstId, enabled: false });
+    // Availability is config-derived state; flip it the way fetchConfigs does.
+    s.ipDBs[0].enabled = false;
     const active = s.activeSources;
     assert.ok(active.every((db) => db.enabled));
     assert.ok(!active.find((db) => db.id === firstId));