HTTP Status Code 501
The status code 501, also known as "Not Implemented," is an error code used in communication between web servers and browsers. It indicates that the server you're trying to access doesn't understand or can't perform the specific request you sent.
Here's a breakdown of what a 501 status code means:
- Cause: The server encountered a functionality it doesn't recognize or isn't equipped to handle. This could be due to a new feature you're trying to use that the server hasn't implemented yet, or an obscure request method.
- Difference from 405: If the server understands the request method but simply doesn't allow it for a specific resource, you'll get a 405 "Method Not Allowed" error instead.
Since the issue lies with the server, there's not much you, the user, can do to fix a 501 error. It's up to the website administrator to update their server to handle the request.
Other 5xx Status Codes
