422422 Unprocessable Content
The server understands the content type and syntax but cannot process the contained instructions due to semantic errors.
412One or more conditions specified in the request headers evaluated to false on the server.
A conditional request using headers like If-Match, If-Unmodified-Since, or If-None-Match failed. The resource's ETag or modification date does not match what the client expected, indicating it was modified since last accessed.
Fetch the latest version of the resource to get the current ETag/modification date. Update your conditional headers with the new values and retry the request.
422The server understands the content type and syntax but cannot process the contained instructions due to semantic errors.
201The request has been fulfilled and a new resource has been created as a result.
103The server sends preliminary response headers to allow the client to start preloading resources before the final response.
402The request requires payment. This status code is reserved for future use but is used by some APIs to indicate billing issues.
523Cloudflare could not reach the origin server, typically due to DNS issues.
408The server timed out waiting for the client to complete the request.