About HTTP Status Codes
The HTTP Status Codes reference covers all official HTTP status codes (1xx-5xx). You can search and filter by code or name, with detailed descriptions, common causes, example response headers and REST API usage guidance. All lookups run locally in your browser.
Features
- All official HTTP status codes (1xx-5xx)
- Search and filter by code or name
- Detailed description and common causes
- Copy example response headers
- REST API usage guidance
Frequently Asked Questions
What is the difference between 301 and 302?
301 is a permanent redirect that search engines cache, while 302 is temporary and should be re-checked each time.
Which status code should I use for a successful POST?
Use 201 Created when a new resource is made, or 200 OK if you simply return the result without indicating creation.