[英]Losslessly compress image as much as Google's PageSpeed Insights
I'm optimizing my webpage using Google's PageSpeed Insights. 我正在使用Google的PageSpeed Insights优化我的网页。 It recommends: 它建议:
Losslessly compressing http://mysite.com/.../image.jpg?... could save 33.6KiB (23% reduction).
However, when I upload this image to Yahoo! 但是,当我将此图像上传到Yahoo! Smush.it it's only able to compress it by 8KB, not 33 KB. Smush.it它只能压缩8KB而不是33 KB。
What kind of super compresser is Google using? 谷歌使用什么样的超级压缩机? How do I do that? 我怎么做?
There is this link which provides some generic information regarding compression optimisations for images : https://developers.google.com/speed/docs/best-practices/payload?hl=fr#CompressImages 此链接提供了有关图像压缩优化的一些常规信息: https : //developers.google.com/speed/docs/best-practices/payload?hl = fr #CompressImages
But it's also interesting to note that Google has tried (without success so far) to promote its own image compression format, under the name of WebP, which is supposed to provide better compression ratio. 但值得注意的是,谷歌已尝试(目前尚未成功)以WebP的名义推广自己的图像压缩格式,该版本应该提供更好的压缩比。 https://developers.google.com/speed/webp/ https://developers.google.com/speed/webp/
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