ExpertTip - Fixing 4xx errors



Follow the links in this Expert Tip to help you fix 4xx errors.

4xx codes generally are error responses indicating an issue at the client’s end, potentially a network issue. Cloudflare passes these errors directly from your origin. Follow the links to posts about the specific 4xx errors.

400 Bad Request
401 Unauthorized
402 Payment Required
403 Forbidden
404 Not Found
405 Method Not Allowed
406 Not Acceptable
407 Authentication Required
408 Request Timeout
409 Conflict
410 Gone
411 Length Required
412 Precondition Failed
413 Payload Too Large
414 URI Too Long
415 Unsupported Media Type
417 Expectation Failed
429 Too Many Requests
451 Unavailable For Legal
499 Client Close Request

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If You Need More Help
This community of other Cloudflare users may be able to assist you, if not, login to Cloudflare and then contact Cloudflare Support. When you contact support, make sure to include as much of this information as possible: the specific error message your are seeing, the URLs this is happening on, screen shot of the error, steps to reproduce the error, and HAR file(s). Please indicate what troubleshooting steps you’ve tried in order to help Customer Support help you.

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