Cumulative Layout Shift Issues
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10-29-2020, 08:51 AM
Post: #1
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Cumulative Layout Shift Issues
I have been trying to figure out CLS on a site and I have been using the Web Vitals Chrome extension based on Web.dev's recommendation (https://web.dev/vitals/). However, I can change the width of a test page and get wildly different results. Some widths will get a CLS score of zero. Other widths return a result over .4. As an example, below are some screenshots of the web.dev/cls page showing different results based on width (which I found ironic).
https://drive.google.com/file/d/1QEzIJ7n...sp=sharing https://drive.google.com/file/d/14KN76gU...sp=sharing https://drive.google.com/file/d/1Td_AwAC...sp=sharing So my question about webpagetest.org's results is what width do they use for a site? Do they check multiple widths and average the score? How do we get a consistent score to know the site's true CLS? Better yet, how will Google judge on their search score? Is there a reliable tool that can tell us what our site truly scores so we can accurately measure and fix sites accordingly? Help, please! ![]() |
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Cumulative Layout Shift Issues - doubled - 10-29-2020 08:51 AM
RE: Cumulative Layout Shift Issues - pmeenan - 10-29-2020, 09:44 AM
RE: Cumulative Layout Shift Issues - doubled - 10-29-2020, 09:52 PM
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