I recevied many error: 400 bad request, since 2024/11/04 13:00(UTC)

[tomliu.1212]

What is the name of the domain?

expl.com

What is the error number?

400

What is the error message?

bad request

What is the issue you’re encountering

i getting many 400 status

What steps have you taken to resolve the issue?

upgrade my nginx server version
close https2 on my nginx

[headinthecloud]

Hi there,

Thanks for reaching out on the Cloudflare Community! Sorry to read that you’re experiencing difficulties.
A 400 error is always returned from an Origin server. It indicates that the client did not send a correct request to the server: a malformed request syntax, invalid request, message framing, or deceptive request routing. For example, if the request contains a special character that is not correctly URL Encoded (or percent-encoded) , an HTTP Error 400 will be returned.

I hope this information was useful, let us know if we can further assist you in this matter!