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.

17 hosts · 327 ms

HostCertsFirst seenLast seenDNS
playmobilmalta.com 13 2026-04-09 2026-09-27 ok
*.playmobilmalta.com 7 2026-05-25 2026-09-27 —
ap1.playmobilmalta.com 2 2026-07-21 2026-07-21 ok
mailcas1.lan.playmobilmalta.com 5 2026-03-11 2026-09-09 nodata
mailcas2.lan.playmobilmalta.com 5 2026-03-11 2026-09-09 nodata
mailbox3.lan.playmobilmalta.com 5 2026-03-11 2026-09-09 nxdomain
mailbox4.lan.playmobilmalta.com 5 2026-03-11 2026-09-09 nxdomain
mailbox5.lan.playmobilmalta.com 5 2026-03-11 2026-09-09 nxdomain
mailbox6.lan.playmobilmalta.com 5 2026-03-11 2026-09-09 nxdomain
autodiscover.lan.playmobilmalta.com 5 2026-03-11 2026-09-09 nodata
sslvpn.playmobilmalta.com 5 2026-03-11 2026-09-09 ok
ap.playmobilmalta.com 2 2026-07-21 2026-07-21 ok
www.ap.playmobilmalta.com 2 2026-07-21 2026-07-21 nxdomain
autodiscover.playmobilmalta.com 5 2026-03-11 2026-09-09 ok
ow.playmobilmalta.com 5 2026-03-11 2026-09-09 ok
www.ow.playmobilmalta.com 5 2026-03-11 2026-09-09 nodata
www.playmobilmalta.com 6 2026-04-09 2026-08-07 ok

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