check_url fails for Heroku deployment

After each deployment we check if your app is up. Therefore we call (wget) either the default * URL or the URL you specified here.

If the build fails during check_url YOUR_URL it’s usually because your application does not respond with a HTTP/2xx status code at the URL you provided (or the default URL for the deployment if you didn’t provide any).


  • Respond with a HTTP/200 status code at the root of your application.
  • Configure a URL that will respond with such an status code in the advanced deployment configuration.
  • Enter a generic URL(e.g. in the deployment configuration if you want to disable the check entirely.