Knowledgebase: General
Site Error Codes
Posted by on 16 October 2015 12:42 PM

What are Error Codes?

These numbered error codes are how the server tells website visitors about an error encountered. There are many different error codes that a server can deliver, but these are a few of the more common codes. The information in this article may help identify the cause of an issue with your site.

401 : Unauthorized

Access to the URL resource requires user authentication which either has not yet been provided, or which has been provided but failed. This is commonly known as password protection. Unless you have a good reason to do so, it is not recommended to redirect a 401 error.

403 : Forbidden

The request was a legal request, but the server is refusing to respond to it. Unlike a 401 Unauthorized response, authenticating will make no difference. This is usually due to a scripting or file permissions issue.

404 : Not Found

This response code indicates that the visitor was able to communicate with the server, but either the server could not find what was requested, or it was configured not to fulfill the request and not reveal the reason. Error 404 should not be confused with "server not found" or similar errors, in which a connection to the destination server cannot be made at all.

421 : Too Many Connections

The maximum number of connections from one IP is 8, if you encounter a 421 error, this means that you have exceeded this limitation. You can no longer control your FTP connections via FTP Sessions Control in cPanel, this must now be completed via your FTP client.

500 : Internal Server Error

Your web server encountered an unexpected condition that prevented it from fulfilling the request by the visitor. Basically, something has gone wrong, but the server can not be more specific about the error condition in its response to the visitor.

502 : Bad Gateway

This HTTP status code indicates that one server received an invalid response from another server that it was accessing while attempting to load a website or complete another request. This error can appear in various forms, e.g., 502 Service Temporarily Overloaded, HTTP 502, 502 Proxy Error, and Temporary Error (502). This issue is commonly a network error between servers on the internet, however, there are some measures that can be taken such as refreshing the page, clearing your browser cache, using a different browser to load the site or starting a new browsing session.

503 : Service Unavailable

This error is likely due to an issue on your server which will require additional assistance. Typically this can occur when your server is temporarily overloaded or undergoing maintenance.

504 : GateWay Timeout

When you attempt to access a web-page, the server that your action is routed through places a time limit on that request. If a response is not provided after a certain amount of time, a 504 error may appear in your browser. 504 errors are normally a result of attempting to contact a server that is either not properly functioning or undergoing maintenance.

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