content-visibility CSS property explained by Surma and Jake.
Topic: Performance – Page 2
A look-back at caching strategies from the past; with recent changes in Chrome's and Safari's caching strategies, there is no caching benefit from using publicly available third-party libraries anymore.
Improve the loading of your responsive images by using link rel="preload" elements with the new attributes imagesrcset and imagesizes.
Article on headers that can be used to provide a better user experience making the web safer, affordable and respectful.