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.

7 hosts · 345 ms

HostCertsFirst seenLast seenDNS
za.group 1 2026-02-13 2026-02-13 ok
*.za.group 1 2026-02-13 2026-02-13 —
crs.fatca.za.group 1 2026-02-25 2026-02-25 ok
bank.za.group 1 2026-04-15 2026-04-15 ok
*.bank.za.group 1 2026-04-15 2026-04-15 —
api-jpm.bank.za.group 2 2026-07-31 2026-08-06 nxdomain
careers.za.group 1 2026-03-25 2026-03-25 nxdomain

Programmatic access, with DNS A records: API GET /v1/hosts/za.group (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/za.group.