Page Speed Insights, Image optimization and Server Side Image Resolution Queries

While checking my website’s Page Speed Insight, I found it lacking in one key area - Image optimizations. The problem is largely in the Homepage, where the large blog images are fitted into small thumbnails. There is an HTML solution for this with srcset attribute, but creating images with multiple resolutions manually is time-consuming. There might be a possible way with the Nginx-Image-Resolution module, but I can’t figure out the installation. I have also seen how other websites accomplish the resolution with what looks like server-side queries for height, width, and resolution. Online resources on server side image optimization have been hard to come by. Any help would be immensely appreciated.

Thank you.

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If your website is on WordPress then install TinyPNG Plugin. It will compress all images on your website automatically.