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.

9 hosts · 330 ms

HostCertsFirst seenLast seenDNS
banknizwa.om 11 2026-01-06 2026-07-16 ok
*.banknizwa.om 9 2026-01-06 2026-07-16 —
api.banknizwa.om 2 2026-05-21 2026-05-21 ok
url.banknizwa.om 2 2026-06-12 2026-06-12 ok
bn-services.banknizwa.om 2 2026-05-21 2026-05-21 ok
apis.banknizwa.om 2 2026-05-21 2026-05-21 ok
cms.banknizwa.om 2 2026-05-22 2026-05-22 ok
mta-sts.banknizwa.om 2 2026-06-07 2026-08-17 ok
www.banknizwa.om 2 2026-05-22 2026-05-22 ok

Programmatic access, with DNS A records: API GET /v1/hosts/banknizwa.om (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/banknizwa.om.