How to solve 400 bad request on mobile phone?

#400 bad request How to solve the problem on mobile phone?

400 bad request generally refers to grammatical problems in the request, or errors that occur when the request cannot be satisfied. Solution: 1. Open the browser for one-click repair; 2. Clear the browser’s cache. and cookie data; 3. Website program errors can be reported to the website staff.

400 bad request

400 is an HTTP status code that tells the client that it sent an abnormal request. The 400 page is a page with a 400 prompt returned to the user interface when the user opens the web page. The meaning is that the domain name of the page you are visiting does not exist or the request is incorrect. Mainly divided into two types.

1. The semantics are incorrect and the current request cannot be understood by the server. The client should not resubmit this request unless modified.

2. The request parameters are incorrect.

400 mainly has two forms:

1. Bad request means "wrong request";

2. Invalid hostname means "non-existent domain name" .

Usually this message will only appear on a Windows host. If it is a Linux host, a different error message will be displayed. The reason for the bad request invalid hostname error is that a certain domain name is bound to a certain host, but the host is not bound to the domain name, so IIS returns this prompt message. What should I do if I encounter this problem? The first solution is to ping the domain name to see if the IP address of the space is resolved. If so, go to the management panel of the space to see if your domain name is bound. If so, it is definitely a problem with the space provider. , to solve this problem, you can only find a space provider to bind your domain name. If you have the permission, you can solve the problem by binding the domain name yourself.

HTTP status code classification

Category	Category description
1**	Information, the server received the request and needs the requester to continue performing the operation
2**	Success, the operation was successful Receiving and processing
3**	redirect, further action is required to complete the request
4**	Client error, the request contains a syntax error or the request cannot be completed
5**	Server error, the server is processing An error occurred during the request

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