HTTP-Status: 500-505

500 Internal Server Error

There is an internal server error on the site you are trying to contact. Unfortunately, there's nothing you can do other than contact the site administrator.

501 Not Implemented

You’ve asked the server to do something it can't. The server in question may need to be upgraded.

502 Bad Gateway

The server you contacted for a document had to contact another server to obtain it. The server you first contacted received an error from the second server.

503 Service Unavailable

The server you're trying to access is over tasked at the moment and it can't process your request. The server may be down for maintenance, or there may just be too many users on the site at the moment.

504 Gateway Timeout

Your modem or Internet connection has just hung up on you. There are several possible reasons for this. The most likely is that your connection has been inactive longer than allowed (the time limit will usually be set by your ISP). It could also be a server or network problem.

505 HTTP Version Not Supported

Your browser may have made a request using HTTP 1.1, whereas the server you made the request to supports only up to HTTP 1.0. This may occur when a proxy server sends along a request with a different version number.