AkousaHTTP Status CodesInfo
101101 Switching Protocols
The server is switching protocols as requested by the client via an Upgrade header.
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View details 520Cloudflare received an unexpected or empty response from the origin server.
The origin server returned a response that Cloudflare could not interpret. This includes empty responses, oversized headers, invalid HTTP responses, or connections that were closed before sending a response.
Check your origin server logs for errors. Ensure the server returns valid HTTP responses with proper headers. Verify the server is not crashing silently. Check that response headers are within Cloudflare's size limits.
101The server is switching protocols as requested by the client via an Upgrade header.
305The requested resource must be accessed through the proxy specified in the Location header. This status code is deprecated.
413The request body exceeds the size limit configured on the server.
506The server has an internal configuration error where the chosen variant resource is configured to engage in content negotiation itself.
422The server understands the content type and syntax but cannot process the contained instructions due to semantic errors.
303The response to the request can be found at a different URL using a GET method.