Web
Web Vitals
Core Web Vitals of real visits — measured automatically, no extra code.
What is measured
- LCP (Largest Contentful Paint) — how fast the main content loads
- CLS (Cumulative Layout Shift) — how stable the layout is
- INP (Interaction to Next Paint) — how fast the page responds to clicks
- FCP (First Contentful Paint) — when the first content appears
- TTFB (Time to First Byte) — how fast the server responds
All metrics are shown as p75 (75th percentile) rated good / needs improvement / poor.
Loading
The module (≈ 1.5 KB) loads once the browser is idle after the page has loaded, asynchronously and without dependencies.
<!-- turn Web Vitals off -->
<script defer src="https://trackd.one/t.js" data-website="YOUR_WEBSITE_ID" data-vitals="false"></script>
<!-- sample 10% of pageviews -->
<script defer src="https://trackd.one/t.js" data-website="YOUR_WEBSITE_ID" data-vitals-sample="0.1"></script>Web Vitals measurements use a separate allowance and do not count towards your plan’s events.
Ready in minutes
Create a free account, add your website or app, copy the snippet.