Core Web Vitals
Real-visit field data from Chrome, and a lab run that says what is slow.
Embed
<a href="https://seolyticize.com/guides/core-web-vitals"><img src="https://seolyticize.com/guides/_api/public/orgs/71cb2b7a-a719-4003-b3ea-6321dc1db8ab/spaces/77efb664-7597-40fa-9882-94b8cba85c2f/pages/f76ecb70-65b9-414b-b5dc-9176ddb642e2/social-card.svg?v=3e7ae33eec8b" alt="Core Web Vitals" width="600" height="315"></a>Seolyticize shows two kinds of speed evidence and always labels which is which.
Field data | Lab run | |
|---|---|---|
Source | Chrome UX Report: real visits over the trailing 28 days | PageSpeed Insights: one synthetic Lighthouse run |
What it shows | LCP, INP and CLS, and whether the site passes | Performance, SEO, accessibility and best-practice scores, and what is slow |
What Google ranks on | Yes | No — but it works for sites too quiet for Chrome to report |
Both are free with a Google API key. Add it under Settings → Site performance (see Connect your data providers).
Once a key is set, each client's overview shows Core Web Vitals for the site's origin (refreshed daily, with a short history so you can show a fix landed) and Lab — one synthetic run. Chrome only publishes data for sites with enough real visits; a quiet site says so rather than showing zeros.