How to Verify Domain Ownership

When applying for a domain name certificate, the system needs to verify the ownership of the domain name through the following ways:

Administrator email verification

The system will send a verification email to your chosen administrator email. If you can receive the verification email and click the verification link in the email, the verification is complete.

The domain administrator’s email must meet any of the following requirements:

1.Domain whois administrative contact email

2.Domain whois technical contact email

3.Email with the default administrator prefix:


   admin@domain.com
   administrator@domain.com
   hostmaster@domain.com
   webmaster@domain.com
   postmaster@domain.com

DNS verification

Verify domain ownership by resolving the specified DNS record

For example (under linux system) dig console.ucloud-global.com txt; (under windows) nslookup console.ucloud-global.com txt

If detected and matches the specified value, then wait for up to 10 minutes to complete the domain ownership verification.

If the domain has a CNAME resolution, special handling is needed

Add _dnsauth in front of the host name

Configure the domain _dnsauth.www.demo.com , the TXT record value is the txt record value returned by the system

File verification

Verify domain ownership by creating a specified file in the domain root directory

For example: Create the file irmvo302.htm with the content NtdutxbskfhWvP3OffXW

The system will periodically try to access http://xxx.domain/irmvo302.htm this file, if can be accessed and the content matches, the domain ownership verification is complete.