Free HTTP header checker - check your links for HTTP header errors.
200 OK - The request has succeeded.
301 Moved Permanently - The requested resource has been assigned a new permanent URI and any future references to this resource SHOULD use one of the returned URIs. Clients with link editing capabilities ought to automatically re-link references to the Request-URI to one or more of the new references returned by the server, where possible. This response is cacheable unless indicated otherwise.
302 Found - The requested resource resides temporarily under a different URI. Since the redirection might be altered on occasion, the client SHOULD continue to use the Request-URI for future requests. This response is only cacheable if indicated by a Cache-Control or Expires header field.
304 Not Modified - If the client has performed a conditional GET request and access is allowed, but the document has not been modified, the server SHOULD respond with this status code. The 304 response MUST NOT contain a message-body, and thus is always terminated by the first empty line after the header fields.
307 Temporary Redirect - The requested resource resides temporarily under a different URI. Since the redirection MAY be altered on occasion, the client SHOULD continue to use the Request-URI for future requests. This response is only cacheable if indicated by a Cache-Control or Expires header field.
400 Bad Request - The request could not be understood by the server due to malformed syntax. The client SHOULD NOT repeat the request without modifications.
401 Unauthorized - The request requires user authentication.
403 Forbidden - The server understood the request, but is refusing to fulfill it.
404 Not Found - The server has not found anything matching the Request-URI.
410 Gone - The requested resource is no longer available at the server and no forwarding address is known.
500 Internal Server Error - The server encountered an unexpected condition which prevented it from fulfilling the request.
501 Not Implemented - The server does not support the functionality required to fulfill the request.