Web Development References

HTTP at the level engineers actually use it — methods, headers, status codes, CORS, and the architectural choices behind modern APIs.

5 references HTTP-focused

HTTP Fundamentals

200

HTTP Status Codes

Every 1xx, 2xx, 3xx, 4xx, and 5xx response code with semantics and gotchas.

 GET

HTTP Methods

Safe, idempotent, and cacheable verbs — GET, POST, PUT, PATCH, DELETE, and friends.

 Hdr

HTTP Headers Reference

Request and response headers grouped by purpose — caching, content, security, CORS.

Browser Security & APIs

CRS

CORS Explained

How browsers enforce same-origin policy and how preflight requests work.

 API

REST vs GraphQL

Request shape, caching, tooling, and the real trade-offs.

Related tools and references

HTTP Status Lookup // tools URL Parser // tools JSON Formatter // tools Authentication Methods // security Content Security Policy // security HTTP/2 // protocols

External authority sources