Know your real speed.
The number Google ranks by.
Core Web Vitals (LCP, CLS, FCP, TTFB) measured from your real visitors — p75, the exact metric Google uses for ranking. One tiny script, no cookies. The flat-rate alternative to Vercel Speed Insights.
Lab scores lie — your users’ phones are slower than your laptop
A green Lighthouse score on your machine says nothing about the visitor on a mid-range phone on 4G. Speed Insights collects Core Web Vitals from real sessions and reports the p75 — the 75th percentile Google actually ranks by — per metric and per page. Add one script next to your analytics tag; no cookies, no personal data.
How koigrid compares
| koigrid | Vercel Speed Insights | |
|---|---|---|
| Pricing | Flat rate | Per data point / tier |
| Core Web Vitals (real users) | LCP · CLS · FCP · TTFB | Yes |
| p75 (the ranking metric) | Yes | Yes |
| Cookies | None | None |
| Works on any host | Yes | Best on Vercel |
| Next to your apps/analytics | Yes (same platform) | Vercel only |
| Manage by AI agent | Native | No |
From public docs, 2026. koigrid uses the same site token as Web Analytics — one beacon pair, one site. INP is on the roadmap.
Field data, not lab guesses
Real-user p75
The 75th-percentile of LCP, CLS, FCP and TTFB from actual visitors — the number search ranking uses.
One tiny script
Add <script defer src="…/v.js" data-site="…"> next to your analytics tag. No cookies.
Per page
See which pages drag your vitals down, not just a site-wide average.
Shares your site
Uses the same Web Analytics site token — analytics + speed in one place.
Agent-native
Read vitals from Claude Code or any LLM via the API.
Flat rate
One price — not a bill that grows with your traffic.