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

Results forww38.avatars.githubuserconent.com

Logged At	Not Before	Not After	Common Name	Matching Identities	Issuer Name
2025-08-30T15:37:52.147	2025-08-30T14:39:21	2025-11-28T14:39:20	ww38.avatars.githubuserconent.com	ww38.avatars.githubuserconent.com	C=US, O=Let's Encrypt, CN=R13
2025-08-30T15:37:51.843	2025-08-30T14:39:21	2025-11-28T14:39:20	ww38.avatars.githubuserconent.com	ww38.avatars.githubuserconent.com	C=US, O=Let's Encrypt, CN=R13
2025-05-29T23:33:17.154	2025-05-29T22:34:44	2025-08-27T22:34:43	ww38.avatars.githubuserconent.com	ww38.avatars.githubuserconent.com	C=US, O=Let's Encrypt, CN=R11
2025-05-29T23:33:15.041	2025-05-29T22:34:44	2025-08-27T22:34:43	ww38.avatars.githubuserconent.com	ww38.avatars.githubuserconent.com	C=US, O=Let's Encrypt, CN=R11