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

Results forspf1.service.alibaba.com

Resolver

Location

TXT

Name	TTL	Value
spf1.service.alibaba.com	600	v=spf1 ip4:115.124.18.0/23 ip4:110.75.46.0/23 ip4:47.90.199.0/24 ip4:110.75.160.0/19 ip4:42.120.70.0/23 ip4:115.124.30.0/24 ip4:47.88.44.32/27 ip4:110.75.192.0/19 ip4:42.120.163.0/24 ip4:110.75.141.129/27 ip4:59.82.0.0/23 -all