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I am trying to remove 'Optimize images' warning from Google PageSpeed Insights. Validator says I can do about 40 - 50% image reduction for each jpg on my website. So I installed jpegoptim on Ubuntu and firstly try lossless optimization. It did about 7% reduction, so when I uploaded images on website and run validation, warning 'Optimize images' still occurs.

So I tried to go on lossy optimization of 90% quality. It save about 16% image reduction, but it's still not enough. And when i go to 50% quality to get on 40 -50% image reduction, images are bad quality.

I tried to use https://compressor.io with lossy optimization and i got really fine reduction. I looked on about section and they use jpegoptim for .jpg so where can be problem? I have to implement jpegoptim to my app and i can't run every single jpg with compressor.io.

I want to remove this Pagespeed warning, because it looks like important. But i don't have to use bad quality images on website. Do you have any experiences with this? Thank you.

Anubix
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  • did you figure this out? I'm having the same issue –  Feb 20 '17 at 17:51
  • Well I am using jpegoptim with 85% compression. It's enough for Google Pagespeed and quality of images is still good. – Anubix May 31 '17 at 14:08

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You can use Gtmetrix. In their results they will give you a compressed image.

I use http://compressjpeg.com/

Neither will reduce the quality of the images.

Misunderstood
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