It can be anything! An apex, subdomain, or even a URL.

Results forcname.perspective-dns.com

Resolver

Location

A

Name	TTL	Value
cname.perspective-dns.com	300	104.18.2.73Cloudflare, Inc.
cname.perspective-dns.com	300	104.18.3.73Cloudflare, Inc.

Name	TTL	Value
cname.perspective-dns.com	300	2606:4700::6812:249
cname.perspective-dns.com	300	2606:4700::6812:349

Name	TTL	Value
cname.perspective-dns.com	300	0 issue "letsencrypt.org "
cname.perspective-dns.com	300	0 issue "pki.goog "