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.

4 hosts · 235 ms

HostCertsFirst seenLast seen
eezy.com 20 2026-04-26 2026-09-19
*.eezy.com 22 2025-10-16 2026-09-19
style.eezy.com 4 2026-04-16 2026-08-14
contributors.eezy.com 12 2026-04-23 2026-08-20

Programmatic access: API GET /v1/hosts/eezy.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/eezy.com.