Is this the world's WEIRDEST Largest Contentful Paint element?
Автор: DebugBear
Загружено: 2025-02-04
Просмотров: 9074
Описание:
We take a look at a bizarre performance regression and investigate how the Largest Contentful metric is defined.
00:00 Initial clues
00:41 Change in the LCP element between tests
01:41 Investigating LCP development
02:37 Checking for changes in the image
03:28 Finding the old image on the Wayback machine
04:06 Comparing the two images
04:17 Trying the images on a test page
04:57 What does the LCP metric actually measure?
05:58 Explaining the LCP regression
06:11 FCP but no LCP?
06:50 Another LCP element in Firefox
07:46 Investigating the role of element opacity
08:37 How to check for metric definition changes
09:17 What we learned
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