What free browser extensions and tools can I use to diagnose Core Web Vitals failing scores before hiring a freelancer to fix our layout shifts?
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
What free browser extensions and tools can I use to diagnose Core Web Vitals failing scores before hiring a freelancer to fix our layout shifts?
1 real search · 1 real-search pass
Google Web Vitals Chrome extension CLS layout shift debugging DevTools Performance panel Lighthouse PageSpeed Insights documentationGoogle ↗
OBSERVEDReason
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (1)
Classes come from the query-classifier (a local Laya model). 1 of 1 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT1 real searches · gpt-6
Google Web Vitals Chrome extension CLS layout shift debugging DevTools Performance panel Lighthouse PageSpeed Insights documentation Google ↗
- Find Web Vitals on Chrome Web Store · chromewebstore.google.com
- Lighthouse documentation · developer.chrome.com
- Open Google Tag Assistant · tagassistant.google.com
- Run PageSpeed Insights · pagespeed.web.dev
- Chrome UX Report documentation · developer.chrome.com
- Visit DebugBear · debugbear.com
- Run WebPageTest · webpagetest.org
- web-vitals-extension/README.md at main · GoogleChrome/web-vitals-extension · github.com
- Performance panel: Analyze your website's performance | Chrome DevTools | Chrome for Developers · developer.chrome.com
- Performance insights: Get actionable insights on your website's performance | Chrome DevTools | Chrome for Developers · developer.chrome.com
- Chrome Performance panel documentation · developer.chrome.com
- web.dev/src/site/content/en/fast/debug-layout-shifts/index.md at main · GoogleChrome/web.dev · github.com
- web.dev/src/site/content/en/blog/optimize-cls/index.md at main · GoogleChrome/web.dev · github.com
- Cumulative Layout Shift (CLS) | Articles | web.dev · web.dev
- Core Web Vitals report · support.google.com
- Free tool · developer.chrome.com
- Free tool · search.google.com