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What does HTTP Status Code 501-NOT IMPLEMENTED mean?
HTTP Status Code 501-Not Implemented is one of the classes of 5×× (Server Error) response code indicating that the server lacks the necessary capability to complete the request. Your web server does not offer the capability necessary for access and does not recognize the request method, as shown by this server error response code. The server, not the client, is to blame for this sort of Status Code Error. The client’s request is valid, but the server is unable to produce the resource requested. |
Understanding HTTP Status Code 501-Not Implemented
This status can additionally include a Retry-After header, indicating when the requester should return to verify whether the capability is still available.
When the server does not recognize the request method and is unable to handle it for any resource, the acceptable answer is 501. GET and HEAD are the only methods that servers are mandated to offer (and hence must not return 501).
The proper answer is 405 Method Not Allowed if the server recognizes the method but does not support it on purpose.
Examples
HTTP.1.1 501 Not Implemented Content-Type text/HTML <img scr=”http://geocities .example/work-in-progress.gif” /> |
Causes a 501-Not Implemented HTTP Error Code
The fundamental cause of this exact problem, like nearly every other HTTP error code, might be a variety of things. The following are some of the most prevalent causes of a 501 HTTP Error.
1. Virus And Malware
When a virus causes this error, it’s usually not the server itself that’s infected. Instead, it’s your actual web browser. The severity of an assault can damage your browser, or a virus can totally seize and control it in severe situations.
2. Server Overload:
Have you noticed a sudden increase in traffic to your website? When a very moderate website becomes viral with a post, thousands of visits quickly convert into hundreds of thousands, if not millions. The only option in this situation is to wait it out. The only option is to switch to a high-powered web server, such as a cloud-based web host or a Virtual Private Server if the surge in traffic was not that significant or shows no indications of slowing down (VPS).
3. Server Error:
Another typical cause is when the real server is unable to reply correctly to a browser request from the end-user. When a hosted web application tries to receive data packets from the server, this can also happen.
4.Expired Server Software:
Most web providers update their server software on a regular basis. However, server updates may not occur in a timely manner, especially with inexpensive hosting companies. The only way to get out of this predicament is to contact your web hosting company or switch to a new server/service entirely.
Solving 501 Not Implemented HTTP Error Code
Identifying and fixing the error’s fundamental cause is more difficult than it appears. While most reasons may be resolved without the help of a professional, this isn’t always the case. You may be able to tackle particular reasons even if you are a total newbie. However, if the main reason is a server-level problem, it’s probably better to seek help from your web server hosting provider.
Steps involved in Solving 501 Not Implemented HTTP Error Code are:
1. Perform a Deep-Level Virus Scan 2. Clear Browser/Internet Cache 3. Disable Proxy Settings 4. Contact Your Web Server Host |
Status
501 Not Implemented |
Specification
Browser Compatibility
501 Code References
Rails HTTP Status Symbol | :not_implemented |
Go HTTP Status Constant | http.StatusNotImplemented |
Symfony HTTP Status Constant | Response::HTTP_NOT_IMPLEMENTED |
Python2 HTTP Status Constant | httplib.NOT_IMPLEMENTED |
Python3+ HTTP Status Constant | http.client.NOT_IMPLEMENTED |
Python3.5+ HTTP Status Constant | http.HTTPStatus.NOT_IMPLEMENTED |
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FAQ
What does HTTP Status Code 501 mean?
Not Implemented 501 status code is one of the classes of 5×× (Server Error) response code indicating that the server lacks the necessary capability to complete the request. Your web server does not offer the capability necessary for access and does not recognize the request method, as shown by this server error response code.
What are the causes of HTTP Status Code Error 501?
The causes are :
1. Virus or Malware
2. Server Overload
3. Server Error
4. Expired Server Software
How can we solve the 501 Not Implemented HTTP error Code?
1. Perform a Deep-Level Virus Scan
2. Clear Browser/Internet Cache
3. Disable Proxy Settings
4. Contact Your Web Server Host
Conclusion
I hope this article was able to help you with your doubts and queries related to HTTP Status code 501-NOT IMPLEMENTED). Still, if there are any queries related to this topic, feel free to ask in the comment section, we would be happy to assist you. Thank you.
Saurabh Chalise