502

Bad Gateway

5xx Server Error

The server, while acting as a gateway, received an invalid response from the upstream server.

Common Causes

  • Upstream server down
  • Network issues
  • Proxy misconfiguration
  • DNS problems

How to Fix

  • Check upstream services
  • Verify proxy settings
  • Wait and retry

About HTTP 502

HTTP 502 Bad Gateway is a server error response status code. This indicates that the server encountered an error while processing the request.

Monitoring for 502 Errors

Server errors like HTTP 502 can significantly impact user experience and should be monitored proactively. Setting up uptime monitoring helps you detect these errors before your users report them.

501 Not Implemented503 Service Unavailable

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Related Status Codes

500 Internal Server Error501 Not Implemented503 Service Unavailable504 Gateway Timeout505 HTTP Version Not Supported507 Insufficient Storage508 Loop Detected511 Network Authentication Required