To verify your site via a Domain property, you just need to verify that you’re the owner of the domain (not just the URL).
So, you’ll need to verify through your DNS (Domain Name Service) provider. Your DNS provider is whomever you bought your domain name and/or hosting services from. Some popular providers include Bluehost, Siteground, GoDaddy, and Namecheap.
To get started, paste in your domain name (your URL without the www) and click Continue: