Optimize Images | PageSpeed Insights | Google for Developers

Optimize Images Stay organized with collections Save and categorize content based on your preferences. This rule triggers when PageSpeed Insights detects that the images on the page can be optimized to reduce their filesize without significantly impacting their visual quality. Overview Images often account for most of the downloaded bytes on a page. As a result, optimizing images can often yield s

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Googleおすすめの画像圧縮ツールは、jpegtran、jpegoptim、OptiPNG、PNGOUTか。