2 404, 503, 301, the website status code is the most common, but as a webmaster, you should have more website status codes in order to respond to various errors in the website and fix errors faster. Here are some website status codes that Yang Xiaojie blogs for everyone.
The initial request has been accepted and the customer should continue to send the rest of the request. (HTTP 1.1 new)
101 Switching Protocols
The server will switch to another protocol in accordance with the client's request (HTTP 1.1 new)
Everything is ok, and the answer to the GET and POST requests is followed.