Web performance library for measuring all performance vitals metrics
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Updated
Oct 25, 2025 - TypeScript
Web performance library for measuring all performance vitals metrics
Web Vitals: Essential module for a healthy project
This POC intends to make the the time to first byte as short as possible by sending the HTML in chunks through node server and other optimisations to progressively load the page in browser.
RMON is a self-hosted uptime and synthetic monitoring platform for websites, APIs, servers, DNS and network services. Run checks from multiple locations, validate responses and SSL certificates, receive alerts, analyze history and publish status pages
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Live per-phase HTTP timing probe: DNS, TCP, TLS, TTFB, body transfer, and streaming chunk timing (ITL), streamed as each phase completes.
Measures Time to First Byte (TTFB) in milliseconds, Server Time, and more for a list of URLs stored in a file. It takes into account Network Latency and Excludes failed requests.
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Since Sentry has an issue on trigger web vitals metrics performance tracking. This library is created for solving this by using `web-vitals` callback and perform the Sentry measurement.
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