Performance / Core Web Vitals Live
Real LCP/INP/CLS (Google PSI field + lab), compression, request count.
- Real LCP, INP and CLS values (CrUX field data)
- Lab (Lighthouse) measurement when field data is missing
- Compression and transfer size
- Request count and render-blocking resources
Performance / Core Web Vitals — how do you use it?
- Paste the address you want to check into the field above. Use the exact URL — including https:// and, if relevant, the trailing slash — so the analysis runs against the page a visitor actually loads.
- Press Run. The page is fetched server-side, the HTML is parsed and the checks are executed; typically this takes a few seconds.
- Work through the findings from top to bottom — they are already ordered by impact — and re-run the tool after your changes to confirm the fix landed.
Run Performance / Core Web Vitals after every significant change: a template update, a migration, a redesign or a CMS upgrade. A monthly run is a good baseline even when nothing changed, because third-party scripts, plugins and server settings drift on their own. Keep the previous report next to the new one so you can see which numbers moved and which stayed put — a score that drops without any deliberate change is usually the first sign that something upstream broke. Once you are done here, Technical SEO Audit is the natural next step; the two look at the same page from different angles and their findings complement each other.
Performance / Core Web Vitals — frequently asked questions
What does the Performance / Core Web Vitals tool do?
Real LCP/INP/CLS (Google PSI field + lab), compression, request count. In a single run it reports on real lcp, inp and cls values (crux field data), lab (lighthouse) measurement when field data is missing, compression and transfer size — and every finding comes with a concrete fix.
Is Performance / Core Web Vitals free? Do I need an account?
Yes, it is completely free and no sign-up is required to run it. A free account only adds analysis history, saved reports and shareable links.
How current are the results?
The page is fetched from your server in real time on every run, so results reflect the live version. Identical requests are served from a short-lived cache to spare both servers.
How should I read the findings?
Findings are ordered by impact: critical and high items affect indexing or rankings directly and should be handled first; medium and low ones are optimization opportunities.
This tool is built and maintained by the Enco Software Seo team; its measurement logic and thresholds follow Google's published documentation. If a result looks wrong, let us know.