snakereach

Errors

504 Upstream timeout

The target site did not respond in time.

What causes it

  • The site is slow or overloaded.
  • A JavaScript-heavy page exceeded the render timeout.

How to fix it

  1. Retry, timeouts are frequently transient.
  2. Check the `trace` on a successful call to the same host to see where time goes.
  3. Persistent timeouts on a host you control are worth reporting.

What it looks like

504 response
{
  "type": "https://snakereach.com/errors/upstream-timeout",
  "title": "Upstream timeout",
  "status": 504,
  "detail": "timed out after 30.0s"
}

See also

The performance trace · All errors