407

Proxy Authentication Required

Description

This is similar to 401 Unauthorized but authentication is needed to be done by a proxy. The proxy must return a Proxy-Authenticate header field containing a challenge applicable to the proxy for the target resource.

HTTP Status Codes Details

Status Code
407
Status Name
Proxy Authentication Required
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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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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