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

Results for_sv5.bitrix24.com

Resolver

Location

TXT

Name	TTL	Value
_sv5.bitrix24.com	300	v=spf1 ip4:52.28.143.17 ip4:23.21.114.58 ip4:54.157.148.63 ip4:109.120.180.47 ip4:185.86.146.60 ip4:85.192.32.96 ip4:109.120.183.239 ip4:185.241.193.62 ip4:109.120.181.246 ip4:185.241.192.194 ip4:195.208.185.51 ip4:195.208.185.113 ~all