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.

12 hosts · 277 ms

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HostCertsFirst seenLast seen
prettylittercats.com 1 2026-01-24 2026-01-24
e.prettylittercats.com 1 2025-12-10 2025-12-10
l.e.prettylittercats.com 1 2025-12-10 2025-12-10
w.e.prettylittercats.com 1 2025-12-10 2025-12-10
www.e.prettylittercats.com 1 2025-12-10 2025-12-10
x.e.prettylittercats.com 1 2025-12-10 2025-12-10
scoop.prettylittercats.com 1 2026-01-25 2026-01-25
t.prettylittercats.com 1 2025-12-10 2025-12-10
l.t.prettylittercats.com 1 2025-12-10 2025-12-10
w.t.prettylittercats.com 1 2025-12-10 2025-12-10
x.t.prettylittercats.com 1 2025-12-10 2025-12-10
www.prettylittercats.com 1 2026-01-24 2026-01-24

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