METHODHow does this tool work?
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.
LIMITATIONSWhat does the result not prove?
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.