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.

14 hosts · 264 ms

HostCertsFirst seenLast seenDNS
pandadoc.net 1 2025-12-03 2025-12-03 ok
*.pandadoc.net 1 2025-12-03 2025-12-03 —
transactional.pandadoc.net 2 2025-10-03 2026-09-02 ok
*.transactional.pandadoc.net 2 2025-10-03 2026-09-02 —
email.pandadoc.net 2 2025-10-04 2026-09-03 ok
*.email.pandadoc.net 2 2025-10-04 2026-09-03 —
system.pandadoc.net 2 2025-10-04 2026-09-03 ok
*.system.pandadoc.net 2 2025-10-04 2026-09-03 —
hello.pandadoc.net 2 2025-06-20 2026-05-20 nodata
*.hello.pandadoc.net 2 2025-06-20 2026-05-20 —
email.hello.pandadoc.net 5 2026-04-30 2026-08-27 ok
email.transactional-eu.pandadoc.net 5 2026-04-27 2026-08-25 ok
email.email-eu.pandadoc.net 5 2026-04-27 2026-08-25 ok
email.system-eu.pandadoc.net 5 2026-04-27 2026-08-25 ok

Programmatic access, with DNS A records: API GET /v1/hosts/pandadoc.net (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/pandadoc.net.