Bug | Recompressing WebP Images | Size Increased
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It appears your image compression engine is causing the size of our WebP images to increase in size when we change their compression level from 25% to 60%.
Specifically, as an example, our main above-the-fold image size went from 57kb to 73kb. Yes, we refreshed our Permalinks and cleared all cache. Several times.
To replicate the issue, perform the following:
- Compress images to 25%.
- Convert images to WebP.
- Compress images to 60%.
- Refresh cache.
Above confirmed using WebPageTest.
Kindly review and advise. How can we fix this?
Thank you.
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Hello @generosus,
I tried to recreate the issue in a test site, following the steps from your reply. I was not able to recreate the reported issue even when I set the compression level to 80%. Some images in the test site did not receive additional compression benefits, since they were uploaded with high compression initially to the test site, however, the compression process was able to further reduce the WebP size of the images that allowed additional compression, without affecting their viewing experience. For these, their downloaded size was lower than the size of the same image at 25% compression.
Your issue might be related to some other optimization plugins or optimization options in your theme’s settings, if any, however, without being able to reproduce the issue, we can only speculate on possible causes.
Also Remember to flush the cache of your browser when testing.
If you continue experiencing the issue, post a support ticket through the Help Desk area of SiteGround so that we can check the issue at its occurrence on your site and try to assist you better.
Regards,
Plamen.M
Tech Support Team
SiteGround.com
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