diff --git a/.env.example b/.env.example
index 2ff11d4..41cfc68 100644
--- a/.env.example
+++ b/.env.example
@@ -11,3 +11,7 @@ GITHUB_TOKEN=
 # route. Defaults to the canonical SNAP/ETH pair on Ethereum mainnet.
 # Only change this if the pair migrates or you need to point at a test endpoint.
 DEXSCREENER_PAIR_URL=https://api.dexscreener.com/latest/dex/pairs/ethereum/0x72a70a747a8390caf1aad3fb1de3564b55871f137539e498d30f02b1167742ea
+
+# ─── PostHog analytics ───────────────────────────────────────────────────────
+NEXT_PUBLIC_POSTHOG_PROJECT_TOKEN=your_posthog_project_token_here
+NEXT_PUBLIC_POSTHOG_HOST=https://us.i.posthog.com
diff --git a/instrumentation-client.ts b/instrumentation-client.ts
new file mode 100644
index 0000000..888edc8
--- /dev/null
+++ b/instrumentation-client.ts
@@ -0,0 +1,21 @@
+import posthog from "posthog-js";
+
+const projectToken = process.env.NEXT_PUBLIC_POSTHOG_PROJECT_TOKEN;
+const host = process.env.NEXT_PUBLIC_POSTHOG_HOST;
+
+if (!projectToken || !host) {
+  if (process.env.NODE_ENV !== "production") {
+    throw new Error(
+      !projectToken
+        ? "NEXT_PUBLIC_POSTHOG_PROJECT_TOKEN variable required by PostHog is missing or un-configured, this causes events to be silently missed. This error stops appearing once NEXT_PUBLIC_POSTHOG_PROJECT_TOKEN is configured"
+        : "NEXT_PUBLIC_POSTHOG_HOST variable required by PostHog is missing or un-configured, this causes events to be silently missed. This error stops appearing once NEXT_PUBLIC_POSTHOG_HOST is configured",
+    );
+  }
+} else {
+  posthog.init(projectToken, {
+    api_host: host,
+    defaults: "2026-01-30",
+    capture_exceptions: true,
+    debug: process.env.NODE_ENV === "development",
+  });
+}
diff --git a/package-lock.json b/package-lock.json
index 70dcbff..42b3c6c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,6 +13,7 @@
         "lucide-react": "^1.14.0",
         "next": "^16.2.5",
         "postcss": "^8.5.15",
+        "posthog-js": "^1.410.6",
         "react": "^19.2.4",
         "react-dom": "^19.2.4",
         "rehype-raw": "^7.0.0",
@@ -1258,6 +1259,31 @@
         "node": ">=12.4.0"
       }
     },
+    "node_modules/@posthog/browser-common": {
+      "version": "0.3.1",
+      "resolved": "https://registry.npmjs.org/@posthog/browser-common/-/browser-common-0.3.1.tgz",
+      "integrity": "sha512-1nhMVY1wnHADTg8tR9yvm+lPAz5ROxznfQlBtLzB2FFo4lp/LU8lk9KyFPsARDkBxCfYachsJfvRjocL1G/AJQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@posthog/core": "^1.46.0",
+        "@posthog/types": "^1.399.0"
+      }
+    },
+    "node_modules/@posthog/core": {
+      "version": "1.46.5",
+      "resolved": "https://registry.npmjs.org/@posthog/core/-/core-1.46.5.tgz",
+      "integrity": "sha512-zJr9v4bhV9DRGJENWj/FepD9S+bvsc/bwl0Sb46Md4jV7NoPWYp+2QdH4iskv8t1uZhkmCk1XxHn38RXaak/7A==",
+      "license": "MIT",
+      "dependencies": {
+        "@posthog/types": "^1.400.0"
+      }
+    },
+    "node_modules/@posthog/types": {
+      "version": "1.400.0",
+      "resolved": "https://registry.npmjs.org/@posthog/types/-/types-1.400.0.tgz",
+      "integrity": "sha512-0VVOXFrkh0TEAfmptoUqFGbhEzygQyWYQZYPlw0v0QYJfXTYlnlhr/QMMF3NAGKakFwOAn9ZZnlpEFeaLhZ/Cg==",
+      "license": "MIT"
+    },
     "node_modules/@rtsao/scc": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/@rtsao/scc/-/scc-1.1.0.tgz",
@@ -1654,6 +1680,13 @@
         "@types/react": "^19.2.0"
       }
     },
+    "node_modules/@types/trusted-types": {
+      "version": "2.0.7",
+      "resolved": "https://registry.npmjs.org/@types/trusted-types/-/trusted-types-2.0.7.tgz",
+      "integrity": "sha512-ScaPdn1dQczgbl0QFTeTOmVHFULt394XJgOQNoyVhZ6r2vLnMLJfBPd53SB52T/3G36VI1/g2MZaX0cwDuXsfw==",
+      "license": "MIT",
+      "optional": true
+    },
     "node_modules/@types/unist": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/@types/unist/-/unist-3.0.3.tgz",
@@ -2846,6 +2879,17 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/core-js": {
+      "version": "3.49.0",
+      "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.49.0.tgz",
+      "integrity": "sha512-es1U2+YTtzpwkxVLwAFdSpaIMyQaq0PBgm3YD1W3Qpsn1NAmO3KSgZfu+oGSWVu6NvLHoHCV/aYcsE5wiB7ALg==",
+      "hasInstallScript": true,
+      "license": "MIT",
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/core-js"
+      }
+    },
     "node_modules/cross-spawn": {
       "version": "7.0.6",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz",
@@ -3049,6 +3093,15 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/dompurify": {
+      "version": "3.4.13",
+      "resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.4.13.tgz",
+      "integrity": "sha512-2vmYIoqjze2d+kakP8S/nS5shfsl587kzwEjcGlTdiksUVgFHnFCsLYDVj/JNqJVOQZGSYBTmuycv0PodwmnMQ==",
+      "license": "(MPL-2.0 OR Apache-2.0)",
+      "optionalDependencies": {
+        "@types/trusted-types": "^2.0.7"
+      }
+    },
     "node_modules/dunder-proto": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
@@ -3778,6 +3831,12 @@
         "reusify": "^1.0.4"
       }
     },
+    "node_modules/fflate": {
+      "version": "0.4.9",
+      "resolved": "https://registry.npmjs.org/fflate/-/fflate-0.4.9.tgz",
+      "integrity": "sha512-zdxgIEddhfsyCaWpJ2SdXEP8ZMrKJ6+5jl4OupODcywU0IhRk6gdXuVGcPICyfx2H97hVK7xmJtRLPjkxAX8Vw==",
+      "license": "MIT"
+    },
     "node_modules/file-entry-cache": {
       "version": "8.0.0",
       "resolved": "https://registry.npmjs.org/file-entry-cache/-/file-entry-cache-8.0.0.tgz",
@@ -6753,6 +6812,41 @@
         "node": "^10 || ^12 || >=14"
       }
     },
+    "node_modules/posthog-js": {
+      "version": "1.410.6",
+      "resolved": "https://registry.npmjs.org/posthog-js/-/posthog-js-1.410.6.tgz",
+      "integrity": "sha512-/LRekY3DN0SRDD98xS7DPXeTRGozMhkxO/mi+i9F783c3YnaGRP7UGKyS9In1adjmp0xXKc4PfKkwKHonB2liQ==",
+      "license": "(Apache-2.0 AND MIT)",
+      "dependencies": {
+        "@posthog/browser-common": "^0.3.1",
+        "@posthog/core": "^1.46.5",
+        "@posthog/types": "^1.400.0",
+        "core-js": "^3.49.0",
+        "dompurify": "^3.3.2",
+        "fflate": "^0.4.8",
+        "preact": "^10.29.3",
+        "query-selector-shadow-dom": "^1.0.1",
+        "web-vitals": "^5.3.0"
+      }
+    },
+    "node_modules/preact": {
+      "version": "10.29.8",
+      "resolved": "https://registry.npmjs.org/preact/-/preact-10.29.8.tgz",
+      "integrity": "sha512-ej2aVZ+vZ8WO7tvlQWRM9N63A0KzF9q4mWJfDUHgYaIofWY9hu74QdnQrjoPMmZi2/nZ5gN0bJCQF49xQqx09Q==",
+      "license": "MIT",
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/preact"
+      },
+      "peerDependencies": {
+        "preact-render-to-string": ">=5"
+      },
+      "peerDependenciesMeta": {
+        "preact-render-to-string": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/prelude-ls": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/prelude-ls/-/prelude-ls-1.2.1.tgz",
@@ -6795,6 +6889,12 @@
         "node": ">=6"
       }
     },
+    "node_modules/query-selector-shadow-dom": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/query-selector-shadow-dom/-/query-selector-shadow-dom-1.0.1.tgz",
+      "integrity": "sha512-lT5yCqEBgfoMYpf3F2xQRK7zEr1rhIIZuceDK6+xRkJQ4NMbHTwXqk4NkwDwQMNqXgG9r9fyHnzwNVs6zV5KRw==",
+      "license": "MIT"
+    },
     "node_modules/queue-microtask": {
       "version": "1.2.3",
       "resolved": "https://registry.npmjs.org/queue-microtask/-/queue-microtask-1.2.3.tgz",
@@ -8198,6 +8298,12 @@
         "url": "https://github.com/sponsors/wooorm"
       }
     },
+    "node_modules/web-vitals": {
+      "version": "5.3.0",
+      "resolved": "https://registry.npmjs.org/web-vitals/-/web-vitals-5.3.0.tgz",
+      "integrity": "sha512-q6LWsLatGYZp5VGBIOvbTj6JBV2nOmC8KvWztXBmwJcfFAzhwKwbOxhUH306XY3CcaZDUlSmSuNPBsCn0bFu+g==",
+      "license": "Apache-2.0"
+    },
     "node_modules/which": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
diff --git a/package.json b/package.json
index 5e8c6d4..5505dad 100644
--- a/package.json
+++ b/package.json
@@ -16,6 +16,7 @@
     "lucide-react": "^1.14.0",
     "next": "^16.2.5",
     "postcss": "^8.5.15",
+    "posthog-js": "^1.410.6",
     "react": "^19.2.4",
     "react-dom": "^19.2.4",
     "rehype-raw": "^7.0.0",
diff --git a/src/components/copy-command.tsx b/src/components/copy-command.tsx
index 1efe58d..7c1ba90 100644
--- a/src/components/copy-command.tsx
+++ b/src/components/copy-command.tsx
@@ -1,6 +1,7 @@
 "use client";
 
 import { Check, Copy } from "lucide-react";
+import posthog from "posthog-js";
 import { useEffect, useRef, useState } from "react";
 
 type CopyStatus = "idle" | "copied" | "failed";
@@ -32,6 +33,12 @@ export function CopyCommand({ value }: { value: string }) {
 
         try {
           await navigator.clipboard.writeText(value);
+          if (
+            process.env.NEXT_PUBLIC_POSTHOG_PROJECT_TOKEN &&
+            process.env.NEXT_PUBLIC_POSTHOG_HOST
+          ) {
+            posthog.capture("command_copied");
+          }
           setStatus("copied");
         } catch {
           setStatus("failed");
diff --git a/src/components/node-info-checker.tsx b/src/components/node-info-checker.tsx
index 057ab42..6d6952a 100644
--- a/src/components/node-info-checker.tsx
+++ b/src/components/node-info-checker.tsx
@@ -2,6 +2,7 @@
 
 import { useState } from "react";
 import { AlertTriangle, CheckCircle2, Eraser, Search } from "lucide-react";
+import posthog from "posthog-js";
 
 type Tone = "good" | "warn" | "bad" | "idle";
 
@@ -167,6 +168,12 @@ export function NodeInfoChecker() {
                 });
                 return;
               }
+              if (
+                process.env.NEXT_PUBLIC_POSTHOG_PROJECT_TOKEN &&
+                process.env.NEXT_PUBLIC_POSTHOG_HOST
+              ) {
+                posthog.capture("node_info_analyzed");
+              }
               setResult(classifyInfo(trimmed));
             }}
             type="button"