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CLS Debugger
Test and debug Cumulative Layout Shifts, by ex-Google.
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Fili

CLS Debugger - Test and debug Cumulative Layout Shifts, by ex-Google.

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Visualize the cumulative layout shifts to identify which HTML elements are causing the shifts, and improve the important Core Web Vitals scores. Test from different locations and click interstitials away. Reports are shareable with your team.

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Fili
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Love to hear your thoughts! Please note that depending on the website tested, it may take a few minutes to gather the test results as multiple tests are performed (desktop, mobile, CrUX lookups, etc). Speed improvements are on the todo-list :) Do let me know if you run into any issues.