Find every subdomain
of a domain.

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

3 hosts · 273 ms

HostCertsFirst seenLast seenDNS
mwarep.org 24 2026-04-12 2026-10-06 ok
*.mwarep.org 12 2026-05-18 2026-09-16 —
www.mwarep.org 10 2026-04-22 2026-08-19 ok

Programmatic access, with DNS A records: API GET /v1/hosts/mwarep.org (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/mwarep.org.