I have an app running on Heroku. My app was working good, but today I got an error of “failing” issuing the certificate.
I dismissed all the possible issues in the “troubleshooting” documentation in Heroku. (https://devcenter.heroku.com/articles/automated-certificate-management#troubleshooting)
The last one is to the possibility to have my domain blacklisted. Is there anyway to know if my domain is blacklisted?
Thanks.
Hi @imchuck,
Ideally, Heroku would have a log of the specific error returned by the CA that they would be willing to show you.
If not, you can try obtaining a certificate outside of the Heroku interface using any of the clients at
including the web-based ones. The Let's Encrypt client should show you the specific error returned by the CA; if that error is "policy forbids issuing for name", then your name is blacklisted.
As @schoen mentioned (thanks!) it is usually obvious because Let's Encrypt returns an error message that specifically says that the domain is blacklisted.
Can you share your domain name? I would be happy to check for you explicitly 
This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.