HTTP status code 400 (Bad Request) means: The server cannot process the request because it is malformed or invalid. Yes, a client error: the request was wrong or not allowed. Usually the link, the login or the data sent needs to change.
Is it an error?
Yes, a client error: the request was wrong or not allowed. Usually the link, the login or the data sent needs to change.
Common causes
- Malformed request, invalid parameters or corrupted cookies
- Cookies or headers too large
- Mistyped address or broken link
If you are visiting the site
- Check the address for typos
- Clear the browser's cache and cookies for this site
- Reload the page
If you run the website
- Validate input and return a clear error message
- Check the server error logs at the time of the error
Frequently asked questions
What does HTTP 400 mean?
HTTP status code 400 (Bad Request) means: The server cannot process the request because it is malformed or invalid.
Is HTTP 400 an error?
Yes, a client error: the request was wrong or not allowed. Usually the link, the login or the data sent needs to change.
How do I fix a 400 error?
If you are visiting the site: Check the address for typos; Clear the browser's cache and cookies for this site; Reload the page. If you run the website: Validate input and return a clear error message; Check the server error logs at the time of the error.