Caches all the way down

Caching ensures content gets to users as fast as possible and provides a great experience to repeat visitors. But getting network and browser caching right can be difficult, which explains why most web content today is not properly cached. Yoav Weiss explores HTTP cache semantics, strategies, browser internal caches, and service workers and explains how to serve your content fast and fresh.

The fastest resource download is the one never made. Caching is a great way to ensure your content is positioned as close to your users as possible and that your repeat visitors get instant access to your content. Developers can impact the behavior of network and browser caches, improving content caching and ensuring it’s always as available as it can be, but caching semantics in HTTP can be difficult, which means that most content on the web today is not properly cached. Yoav Weiss explores HTTP cache semantics, strategies, browser internal caches, and service workers and explains how to serve your content fast and fresh. Topics include: