Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

5 hosts · 295 ms

HostCertsFirst seenLast seen
ezkratom.com 10 2026-05-25 2026-10-01
*.ezkratom.com 5 2026-05-25 2026-09-22
staging6.ezkratom.com 5 2026-05-26 2026-09-23
*.staging6.ezkratom.com 5 2026-05-26 2026-09-23
www.ezkratom.com 5 2026-06-03 2026-10-01

Programmatic access: API GET /v1/hosts/ezkratom.com (API key for paging).

Shown here: hostnames with a certificate that is valid now or expired within the last 90 days. The full history since 2013 — hostnames whose last certificate expired earlier — is a Pro plan method: GET /v1/hosts-history/ezkratom.com.