• https://help.webex.com/en-us/article/cd6d84/Manage-your-domains
• To verify you own a domain - you must enter a DNS TXT Record similar to below:

cisco-ci-domain-verification=3380cace37906f123456785089775de06b180def12387abad59e09072

So for domain “example.com” you enter a TXT DNS record of like the following (example below is registry 365)

you can test this DNS record using the nslookup command line tool:

> set type=txt
> example.com
Server:  one.one.one.one
Address:  1.1.1.1

Non-authoritative answer:
example.com        text =

        "cisco-ci-domain-verification=3380cace37906f123456785089775de06b180def12387abad59e09072"