HTTP Status Code Check - Alert mismatch code responses

An "HTTP Status Code Check" refers to checking the HTTP status codes that a web server sends back in response to an HTTP request. The HTTP status code is a three-digit numeric identifier that indicates the status of the HTTP request. An HTTP status code check examines which status codes are returned by a web server to determine whether the request was successful or whether there were problems.

Here are some of the most common HTTP status codes and their meanings:

• 2xx (Successful):

  • 200 OK: The request was successful and the server returned the requested data.

• 3xx (redirection):

  • 301 Moved Permanently: The requested resource has been permanently moved to a new URL.
  • 302 Found (or 303 See Other): The requested resource has been temporarily moved to another URL.

• 4xx (client error):

  • 400 Bad Request: The client's request was invalid or incorrect.
  • 401 Unauthorized: The client must authenticate to gain access.
  • 403 Forbidden: The client does not have permission to access the requested resource.
  • 404 Not Found: The requested resource was not found.

• 5xx (Server Error):

  • 500 Internal Server Error: A general server error has occurred.
  • 503 Service Unavailable: The server is temporarily unavailable because it is overloaded or is undergoing maintenance.

An HTTP Status Code Check is important for monitoring the integrity and proper operation of a website or web application. By analyzing the returned status codes, developers and system administrators can quickly respond to problems such as bad requests, resources not found, or server errors.

Web developers and administrators often use tools and services to perform automated checks for HTTP status codes and be notified in the event of errors. This is especially important for diagnosing errors and resolving issues quickly to ensure users have a smooth and reliable experience when accessing the website.