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HTTP Status Codes Reference

Local processing
Selected HTTP status codes with explanations, examples and primary sources
Standards, sources and review dates
  • IANA HTTP status registry · registry snapshot · Reviewed

    Canonical 413/418/422 names. 104 is temporary and expires 2026-11-13 unless extended; confirm the live registry. Review interval: 30 days.

Runnable debugging guides
All (63)
1xx Informational
2xx Success
3xx Redirection
4xx Client Error
5xx Server Error
Showing 63 of 63 status codes
1xx Informational
5
2xx Success
10
3xx Redirection
8
4xx Client Error
29
5xx Server Error
11
Quick Reference
1xx Informational
2xx Success
3xx Redirection
4xx Client Error
5xx Server Error
Common code examples
200OK
201Created
204No Content
301Moved Permanently
400Bad Request
401Unauthorized
403Forbidden
404Not Found
422Unprocessable Content
429Too Many Requests
500Internal Server Error
502Bad Gateway
503Service Unavailable
REST API Guidelines
GET success: 200
POST create: 201
DELETE without content: 204
Validation error: 400/422
Auth required: 401
No permission: 403
Not found: 404
Rate limit: 429