Posts tagged "http"

HTTP caching is one of the most powerful and most misunderstood web performance tools. Getting Cache-Control right can eliminate most of your server's traffic for static assets.

HTTP headers carry critical information about authentication, caching, content type, and security — yet many developers only interact with them when something goes wrong. This reference covers the most important ones.

CORS errors block your frontend from talking to your own API — and the fix is not to disable it. Understanding why browsers enforce the same-origin policy makes the solution obvious.

A space in a URL becomes %20, a plus sign becomes %2B — but not always, and the rules differ depending on where in a URL you are. This post explains the why and the how of percent-encoding.

Is that a 401 or a 403? A 404 or a 410? HTTP status codes have precise meanings that most developers only half-remember. Here is the definitive guide with practical guidance on when to use each.

A badly designed API is a source of endless frustration. These battle-tested REST API design principles help you build endpoints that are intuitive, maintainable, and future-proof.