The Whats Cached Browser Extension is a free and easy-to-use tool for Chrome that allows users to explore what's cached when loading websites, without the need for accessing development tools. Developed by David Pelayo, this extension is designed to provide a visual analysis of what is being HTTP cached, how the network requests appear, and offers common performance metrics such as Web Vitals.

With the Whats Cached Browser Extension, users can gain insights into the caching behavior of websites they visit. By analyzing what is stored in the cache, users can better understand the performance of the websites they frequent. This extension eliminates the need to access the development tools, making it accessible to users of all technical levels.

Whether you are a web developer looking to optimize performance or a curious user interested in understanding how caching affects website loading times, the Whats Cached Browser Extension is a valuable tool. It provides a straightforward way to explore and analyze what is cached, giving users a deeper understanding of website performance.