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The HTTP 414 URI Too Long response status code indicates that the URI requested by the client is longer than the server is willing to interpret.

There are a few rare conditions when this might occur:

  • when a client has improperly converted a POST request to a GET request with long query information,
  • when the client has descended into a loop of redirection (for example, a redirected URI prefix that points to a suffix of itself),
  • or when the server is under attack by a client attempting to exploit potential security holes.


414 URI Too Long


Specification Title
RFC 7231, section 6.5.12: 414 URI Too Long Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content

See also

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 Contributors to this page: fscholz
 Last updated by: fscholz,