Domain Verification

I purchased 4096 bit SSL Certificate for the site hosted on the frappe cloud named
I gave the domain name as
I stuck in domain verification process.
Please guide me how to verify the domain.

Domain verification methods are as following:

  1. Constructed Email
  2. DNS TXT Record
  3. Email to DNS CAA Contact
  4. Email to DNS TXT Contact
  5. HTTP/HTTPS File-based