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

Results for*.securepaynet.net

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2018-02-02T15:05:56.421	2014-11-05T22:29:16	2016-12-10T22:47:33	*.securepaynet.net	*.securepaynet.net	C=US, ST=Arizona, L=Scottsdale, O="Starfield Technologies, Inc.", OU=http://certs.starfieldtech.com/repository/, CN=Starfield Secure Certificate Authority - G2
2018-02-02T15:05:56.421	2014-11-05T22:29:16	2016-12-10T22:47:33	*.securepaynet.net	*.securepaynet.net	C=US, ST=Arizona, L=Scottsdale, O="Starfield Technologies, Inc.", OU=http://certs.starfieldtech.com/repository/, CN=Starfield Secure Certificate Authority - G2
2016-09-26T00:30:32.942	2013-12-10T22:47:33	2016-12-10T22:47:33	*.securepaynet.net	*.securepaynet.net	C=US, ST=Arizona, L=Scottsdale, O="Starfield Technologies, Inc.", OU=http://certificates.starfieldtech.com/repository, CN=Starfield Secure Certification Authority, serialNumber=10688435
2016-09-26T00:30:32.942	2013-12-10T22:47:33	2016-12-10T22:47:33	*.securepaynet.net	*.securepaynet.net	C=US, ST=Arizona, L=Scottsdale, O="Starfield Technologies, Inc.", OU=http://certificates.starfieldtech.com/repository, CN=Starfield Secure Certification Authority, serialNumber=10688435