SSL certs for custom domains gitlab

Describe your question in as much detail as possible:

We followed this documentation: but it does not work at all.

  • What are you seeing, and how does it differ from what you expect to see?
    I can’t get an lets encrypt cert for a custom domain in gitlab pages. The webinterface says everything is fine.
  • Consider including screenshots, error messages, and/or other helpful visuals
    The domain is verified successfully but i can’t get a certificate
  • What version are you on (Hint: /help) ? and are you using self-managed or
    I am using GitLab CE 12.7.5-ce.0 on debian bullseye
  • What troubleshooting steps have you already taken? Can you link to any docs or other resources so we know where you have been?
    tcpdump to check if there are any requests, re-create and re-verify the domain