Peter Bagi

Experiment: Why you should use “Cookie-Free” domain for static files and images

With this example I want to show how the usage of cookies can undermine effective image caching on websites. Even though the image filename remains the same, technically, there is a possibility to change the images depending on the cookies the browser has stored. With Apache, you can point a specific URL to be handled …

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How to use Next-Gen Image Formats WebP, JPEG 2000 and JPEG XR

One of the most underrated web performance optimization technique is delivering Next-Gen image formats. If you run a check in Google Lighthouse Report, you will probably get a recommendation that says “Serve images in next-gen formats” What is WebP, JPEG 2000 and JPEG XR and how do they differ WebP, JPEG 2000 and JPEG XR …

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