505

HTTP Version Not Supported

Description

The HTTP version used in the request is not supported by the server. This might happen if the client is using a very old or very new HTTP version that the server cannot handle.

HTTP Status Codes Details

Status Code
505
Status Name
HTTP Version Not Supported
Class
5xx
Common Usage
No

Common Scenarios

  • Server-side errors
  • Service unavailable

Handling Recommendations

  • Implement retry logic
  • Monitor server health

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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)

Internet standards organization defining HTTP protocols

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Mozilla Developer Network

Comprehensive HTTP status codes documentation

Authoritative web development documentation

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Internet Assigned Numbers Authority

Official HTTP status code registry

Internet protocol parameters authority

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