Web Server Response Codes/Messages (error)

If a connection was established to a Web server, the Web server usually sends a response code and message. If the response code is less than 400, the Web page is considered not on error. If the response code is equal to or greater than 400, the Web page is considered on error.

Web Server Status Codes/Messages 

The Status-Code element is a 3-digit integer result code of the attempt to understand and satisfy the request. These codes are defined below. The Status Message is intended to give a short textual description of the Status-Code.

• 1xx: Informational - Request received, continuing process

• 2xx: Success - The action was successfully received, understood, and accepted

• 3xx: Redirection - Further action must be taken in order to complete the request

• 4xx: Client Error - The request contains bad syntax or cannot be fulfilled

• 5xx: Server Error - The server failed to fulfill an apparently valid request