12/20/2023 0 Comments Festify bad gateawayNote that 502s and 504s can be returned by any HTTP-aware device. You should be able to verify that by generating a HAR file(s), How do I generate a HAR file? In a very few cases it is possible Cloudflare is displaying a 502 error page - as above - but in fact a different error occurred in the back-end. In that case, the error page will look specifically like an unbranded black & white text screen. This might be before contacting your origin server or if we receive data that is incorrectly compressed from your origin server. However, on some occasions this error is returned by Cloudflare. Check your origin server logs for clues as to what happened.Īn application or service used at your origin with is either timing out or being blocked. The could be due to the server crashing, traffic spikes, or lack of connectivity to the server. The server at the origin is overloaded or unreachable at the time the request was made. Maybe caused when changing DNS records keep in mind DNS TTL determines how long a record is valid in DNS cache. The Origin Server is not configured to handle the requested domain name at the targeted IP address. When this happens, you will see color page with Cloudflare branding and the Error 502 Bad Gateway or Error 504 Gateway Timeout. In most cases of 502 / 504 errors, back-end servers are not communicating correctly. They are caused by a problem connecting to an upstream server - meaning your server is trying to initiate a process and this fails to work as expected or times out. Generally, a HTTP 502 / 504 errors occurs because your origin server (e.g., your web host) is returning this code to us, and Cloudflare returns this code in turn to your visitors. Try the suggestions in this Community Tip to help you fix Error 502 / Error 504: Bad Gateway / Gateway Timeout.
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