Category

HTTP

The protocol of the web: requests, responses, status codes and redirects.

HTTP

Cache-Control Headers: Making Repeat Visits Fast

Without caching, every page load re-downloads every asset. Cache-Control directives like max-age, no-cache and immutable let you control fr…

Intermediate 8 minutes
HTTP

HTTP Redirects: 301 vs 302 and When to Use Each

Redirects are how you move pages, enforce HTTPS and retire old URLs without breaking links. The status code you choose — permanent (301/308…

Beginner 8 minutes
HTTP

HTTP Status Codes: The Web's Vocabulary of Success and Failure

Every web response carries a status code that tells the client what happened. Serving the right code — a real 404 for missing pages, a 301…

Beginner 9 minutes
HTTP

HTTP/2 and HTTP/3: Faster Connections for the Modern Web

The original HTTP/1.1 opens a new connection per resource and queues requests. HTTP/2 and HTTP/3 fix that with multiplexing, header compres…

Intermediate 9 minutes

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