HTTP 5xx Server Error

Severity: Warning

What does this mean?

The server responded with an HTTP 5xx status code, indicating an internal server error. Common examples include 500 (Internal Server Error), 502 (Bad Gateway), and 503 (Service Unavailable). These errors mean the server received the request but was unable to process it.

Why this is a problem

A 5xx error indicates the server is experiencing problems. This could be a temporary issue (like a deployment in progress) or a persistent problem (like a crashed application or misconfigured backend). Persistent 5xx errors mean the service is effectively down for anyone trying to use it.

What you should do

• Check the server logs to identify the root cause of the error
• If the application has crashed, restart it and investigate the cause
• For 502/503 errors, check the upstream service or backend that the web server is proxying to
• If the service has been decommissioned, remove the DNS record
• If the error is intermittent, monitor it over time to identify patterns