431

Request Header Fields Too Large

Description

The server is unwilling to process the request because its header fields are too large. The request MAY be resubmitted after reducing the size of the request header fields.

HTTP Status Codes Details

Status Code
431
Status Name
Request Header Fields Too Large
Class
4xx
Common Usage
No

Common Scenarios

  • Client request errors
  • Authentication issues

Handling Recommendations

  • Validate client input
  • Provide clear error messages

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Fact-checking completed

Verified by: Pavel Volkov
Created:
Last updated:
Information verified against official sources

Official Sources

Internet Engineering Task Force RFCs

Official HTTP status codes specification (RFC 7231)

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Comprehensive HTTP status codes documentation

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Internet Assigned Numbers Authority

Official HTTP status code registry

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