Readthedocs domain validation status stuck

Question

Can't add domain for readthedocs project - status stuck on:

HTTPS status: pending_validation

CNAME pointed to docs.sample.com and dig returns readthedocs.io. Is there a way to resolve this issue?

Answer 1

Managed to get alias working on google domains, after 3rd re-add in DNS and another request in rtd.io. Still no good on cloudflare tho (no proxy).

UPD guess it some extended delay.