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511 Network Authentication Required

Document v1 · published by Koskamo · updated 2026-10-04

Original source

HTTP 511 Network Authentication Required is a 5xx server error status code in the IANA HTTP Status Code Registry.

  • Code: 511
  • Reason phrase: Network Authentication Required
  • Class: 5xx (Server Error)
  • Defined in: RFC 6585

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Original source
www.iana.org
Published on Koskamo by
Koskamo
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Document v1
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IANA HTTP Status Code Registry (iana.org/assignments/http-status-codes); registry data reproduced verbatim with references

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Version history

  1. Published by Koskamo

    Version 1