HTTP status codes, methods, and headers in one place. A developer knowledge base with the meaning, real request/response examples, code snippets, and troubleshooting for every entry.
All 62 status codes, 1xx–5xx — meaning, causes, fixes, examples
9 HTTP methods (GET, POST, PUT…) — safety, idempotency, examples
Request & response header dictionary — syntax, directives, security
40 Content-Type media types — uses, extensions, encoding, security
Basic, Bearer, OAuth, JWT, mTLS auth schemes — how they work, security
58 CSP & Permissions-Policy directives — syntax, sources, security
40 core HTTP/web terms — definitions and context
25 curl & fetch recipes — common HTTP tasks
In-depth guides: REST, caching, CORS, auth, redirects