Check LCP, INP and CLS values against current Core Web Vitals thresholds and see which metric needs attention.
Enter your inputs, then update the result.
Your input is processed in this browser unless the tool says it uses an external API.
Compares your supplied 75th-percentile field values with the recommended good and needs-improvement thresholds for LCP, INP and CLS.
The output is designed to make the next manual check clearer rather than turn SEO into a single score.
Use real-user field data where possible. One synthetic Lighthouse run cannot measure INP because INP requires user interactions.
Search visibility depends on crawlability, relevance, content quality, competition, links and many other signals. No browser tool can guarantee rankings.
No. It identifies a narrow technical or content-planning issue. Use the result with real page context and Search Console data.
Most tools run entirely in your browser. The Website Speed Test is the exception: it sends the public URL you enter to Google PageSpeed Insights.
No. Write naturally, answer the searcher's task, use descriptive headings and internal links, and avoid forced repetition.
Continue with the next specific check instead of relying on a single SEO score.
Technical SEO help