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5xx · Server Error

502Bad Gateway

The server was acting as a gateway or proxy and received an invalid response.

What is HTTP 502?

The 502 Bad Gateway status means a server acting as a gateway or proxy received an invalid response from an upstream server. Common when your backend server crashes or returns invalid data.

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Common Use Cases

  • Backend server crash
  • Upstream service returning errors
  • Reverse proxy misconfiguration

Quick Facts

Code502
Category5xx
TypeServer Error

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