September 2nd, 2020
One of the biggest score hits I took was on “Serve images in next-gen formats”, which applied to all thumbnails I had.
I previously used EWWW Image Optimizer for WordPress, and while that helped with other recommendations, it did not solve the one mentioned above.
After digging around a bit more I found an extension that can both optimize and serve images in the next-gen webp format.
It’s called ShortPixel.
Once you’ve signed up on their site, it’s pretty easy to install. Just search it up in your WordPress plugin manager and install and activate.
Once activated, head to settings and enable “Also create WebP versions of the images for free”.
From here, once it finishes optimizing your library, rerun PageSpeed Insights and you should see a good improvement!