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

Results fordimension1.slpowers.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2019-03-13T01:33:50.147	2019-03-13T01:33:49	2020-01-15T21:42:16	dimension1.truedigitalsecurity.com	dimension1.slpowers.com	C=US, ST=Arizona, L=Scottsdale, O="Starfield Technologies, Inc.", OU=http://certs.starfieldtech.com/repository/, CN=Starfield Secure Certificate Authority - G2
2019-01-29T05:03:58.848	2019-01-15T21:42:16	2020-01-15T21:42:16	dimension1.truedigitalsecurity.com	dimension1.slpowers.com	C=US, ST=Arizona, L=Scottsdale, O="Starfield Technologies, Inc.", OU=http://certs.starfieldtech.com/repository/, CN=Starfield Secure Certificate Authority - G2
2019-01-15T21:42:20.95	2019-01-15T21:42:16	2020-01-15T21:42:16	dimension1.truedigitalsecurity.com	dimension1.slpowers.com	C=US, ST=Arizona, L=Scottsdale, O="Starfield Technologies, Inc.", OU=http://certs.starfieldtech.com/repository/, CN=Starfield Secure Certificate Authority - G2