CLS issues on onload popup pages

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Vignesh M

Jun 13, 2022, 9:03:34 AMJun 13
to web-vitals-feedback
Hi team,

I'm from the Lenovo ecommerce team, we have been experiencing worst CLS scores on our product display pages that has end of life popup. For example this one
Does this popup affect the CLS scores of a page? 


Gilberto Cocchi

Jun 13, 2022, 12:19:47 PMJun 13
to Vignesh M, web-vitals-feedback
Hi Vignesh, I would suggest you you try using the new Performance Insights panel in Chrome Stable to visualize what change in the Lenovo site may cause the CLS metric issue:

By looking at the way the page renders you may find all the things causing CLS in your page.

I don't see any popup (testing from Italy) but it's possible that dynamic content as well as Popups (using some animations as shown here might be causing CLS.

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