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.

10 hosts · 340 ms

HostCertsFirst seenLast seenDNS
duradry.com 23 2026-05-11 2026-09-29 ok
*.duradry.com 9 2026-05-11 2026-09-29 —
ssc.duradry.com 2 2026-08-27 2026-08-27 ok
order.duradry.com 8 2026-05-23 2026-09-18 ok
limitedoffer.duradry.com 2 2025-07-10 2026-06-10 ok
sms.duradry.com 8 2026-05-08 2026-09-03 ok
fermat.duradry.com 4 2026-04-23 2026-06-25 ok
account.duradry.com 13 2026-04-11 2026-09-22 ok
ulivt.duradry.com 10 2026-05-08 2026-09-04 ok
www.duradry.com 17 2026-05-22 2026-10-01 ok

Programmatic access, with DNS A records: API GET /v1/hosts/duradry.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/duradry.com.