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.

4 hosts · 331 ms

HostCertsFirst seenLast seenDNS
nordaccount.com 18 2026-03-27 2026-09-20 ok
*.nordaccount.com 18 2026-03-27 2026-09-20 —
accounts-api-internal.nordaccount.com 3 2026-07-03 2026-09-01 ok
cm.nordaccount.com 8 2026-05-06 2026-07-11 ok

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