Performance service guide

Performance is Shahin's website-performance monitoring service: it helps you track the speed and quality of user experience on your site continuously, comparably and over time. Because "speed" is a multi-stage chain — not one number — the service splits it into three separate dashboards, each pointing at a different owner of the problem.

• Infrastructure & Network — the first half of the loading chain: from the click to the first byte arriving from your server. Identifies whether slowness comes from the user's network and carrier, or from your own server and code.
• Render & Interaction — the second half of the chain: from the first byte to the page skeleton being laid out in the browser. Measures front-end code quality and JavaScript weight.
• Core Web Vitals (CWV) — unlike the two dashboards above, which are built from real traffic, this one runs a daily lab test (Lighthouse-style) measuring six standard metrics (LCP, CLS, FCP, TTFB, INP, TBT) on the key pages you register.

1. The first two dashboards form one chain — Infrastructure & Network and Render & Interaction start exactly where the other ends (the first byte arriving); together they cover the whole path from click to page-ready, with no overlap.
2. CWV complements them, it doesn't replace them — since it comes from a lab test rather than real traffic, it has no real-user noise, but it also isn't a real user's experience; read it alongside the other two dashboards, not instead of them.
3. All three share one source — Infrastructure & Network and Render & Interaction data comes from the analytics script already installed on your site; no extra setup needed. For CWV, you register your key pages as Layouts yourself.
4. Telegram reporting — all three dashboards can connect to the Shahin Telegram bot for alerts or a daily summary; connecting the channel is a precondition asked at alert-creation time, not a standing state.