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Error: Twilio Error 11200

What's Causing This Error?

The HTTP retrieval failure, error 11200, occurs when an attempt to retrieve the content of a given URL fails. Several factors cause this error, including:

  • The actual content is not matching with the Content-Type.
  • The web server is temporarily unavailable.
  • The web server is misconfigured.
  • Network disruptions.
  • The web server returns a 4xx or 5xx error to Twilio.

Solution - Here's How To Resolve It

There are multiple solutions you can use to try to solve this issue:

  • Check whether the web server is responsive and up.
  • Verify whether the URL host is not a private or local IP address.
  • Determine the packet loss and ping times between the web server and www.twilio.com.
  • If the URL refers to .xml or .html files, confirm the web server allows HTTP POST requests to static resources.
  • Confirm that the TwiML URL does not return a 4xx or 5xx error.

Other Common Twilio Errors (and Solutions)

View all errors

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