HTTP/1.1 407 Proxy Authentication Required
    Date: Wed, 21 Oct 2015 07:28:00 GMT
    Proxy-Authenticate: Basic realm="Access to internal site"
    

##  Specifications

Specification  
---  
[ HTTP Semantics  
#  status.407  ](https://www.rfc-editor.org/rfc/rfc9110#status.407)  
  
##  Browser compatibility

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##  See also

  * [ HTTP authentication ](/en-US/docs/Web/HTTP/Authentication)
  * [ ` WWW-Authenticate ` ](/en-US/docs/Web/HTTP/Headers/WWW-Authenticate)
  * [ ` Authorization ` ](/en-US/docs/Web/HTTP/Headers/Authorization)
  * [ ` Proxy-Authorization ` ](/en-US/docs/Web/HTTP/Headers/Proxy-Authorization)
  * [ ` Proxy-Authenticate ` ](/en-US/docs/Web/HTTP/Headers/Proxy-Authenticate)
  * [ ` 401 ` ](/en-US/docs/Web/HTTP/Status/401) , [ ` 403 ` ](/en-US/docs/Web/HTTP/Status/403)

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