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

Results forwww.lab.shell.ai

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2021-04-27T21:38:23.504	2021-04-27T21:38:22	2022-05-27T07:45:41	*.lab.shell.ai	*.lab.shell.ai	C=US, ST=Arizona, L=Scottsdale, O="GoDaddy.com, Inc.", OU=http://certs.godaddy.com/repository/, CN=Go Daddy Secure Certificate Authority - G2
2020-03-28T11:48:35.829	2020-03-28T11:48:27	2021-05-27T07:45:41	*.lab.shell.ai	*.lab.shell.ai	C=US, ST=Arizona, L=Scottsdale, O="GoDaddy.com, Inc.", OU=http://certs.godaddy.com/repository/, CN=Go Daddy Secure Certificate Authority - G2
2019-05-27T07:45:41.685	2019-05-27T07:45:41	2020-05-27T07:45:41	*.lab.shell.ai	*.lab.shell.ai	C=US, ST=Arizona, L=Scottsdale, O="GoDaddy.com, Inc.", OU=http://certs.godaddy.com/repository/, CN=Go Daddy Secure Certificate Authority - G2