Re:Things I learnt making a fast website
by mozumder on Friday December 23, 2016 @08:26PM
(#13248138)
I do use PICTURE elements of various sizes, so it shouldn't be loading the 790kb version on a phone. Most likely either the 107kb version or the 220kb version.
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Yep picture tag is really useful. I had tested on WPT and found a big image [1] so I assumed you hadn't taken care of this yet.
[1] ~500KB image on 3G mobile device and load time of ~15.9s (https://www.webpagetest.org/result/161224_M7_29Q/)