Is this the world's WEIRDEST Largest Contentful Paint element? скачать в хорошем качестве

Is this the world's WEIRDEST Largest Contentful Paint element?

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