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.

47 hosts · 371 ms

HostCertsFirst seenLast seenDNS
bilbao.eus 5 2025-07-30 2026-09-10 ok
*.bilbao.eus 2 2025-09-03 2026-09-10 —
sip.funicularartxanda.bilbao.eus 1 2026-01-28 2026-01-28 ok
AutoDiscover.funicularartxanda.bilbao.eus 1 2025-09-30 2025-09-30 —
lyncdiscover.funicularartxanda.bilbao.eus 1 2026-01-28 2026-01-28 ok
sip.alcaldia.bilbao.eus 1 2026-01-28 2026-01-28 ok
AutoDiscover.alcaldia.bilbao.eus 1 2025-09-30 2025-09-30 —
lyncdiscover.alcaldia.bilbao.eus 1 2026-01-28 2026-01-28 ok
sip.bilbaoekintza.bilbao.eus 1 2026-01-28 2026-01-28 ok
AutoDiscover.bilbaoekintza.bilbao.eus 1 2025-09-30 2025-09-30 —
lyncdiscover.bilbaoekintza.bilbao.eus 1 2026-01-28 2026-01-28 ok
sip.surb.bilbao.eus 1 2026-01-28 2026-01-28 ok
AutoDiscover.surb.bilbao.eus 1 2025-09-30 2025-09-30 —
lyncdiscover.surb.bilbao.eus 1 2026-01-28 2026-01-28 ok
sip.be.bilbao.eus 1 2026-01-28 2026-01-28 nxdomain
lyncdiscover.be.bilbao.eus 1 2026-01-28 2026-01-28 nxdomain
Autodiscover.bilbaoarte.bilbao.eus 1 2025-09-30 2025-09-30 —
webconf.bilbao.eus 1 2026-01-28 2026-01-28 ok
sip.kirolak.bilbao.eus 1 2026-01-28 2026-01-28 ok
AutoDiscover.kirolak.bilbao.eus 1 2025-09-30 2025-09-30 —
lyncdiscover.kirolak.bilbao.eus 1 2026-01-28 2026-01-28 ok
sip.zbk.bilbao.eus 1 2026-01-28 2026-01-28 ok
AutoDiscover.zbk.bilbao.eus 1 2025-09-30 2025-09-30 —
lyncdiscover.zbk.bilbao.eus 1 2026-01-28 2026-01-28 ok
sip.bilbaotik.bilbao.eus 1 2026-01-28 2026-01-28 ok
AutoDiscover.bilbaotik.bilbao.eus 1 2025-09-30 2025-09-30 —
lyncdiscover.bilbaotik.bilbao.eus 1 2026-01-28 2026-01-28 ok
sip.bilbaointernational.bilbao.eus 1 2026-01-28 2026-01-28 ok
AutoDiscover.bilbaointernational.bilbao.eus 1 2025-09-30 2025-09-30 —
lyncdiscover.bilbaointernational.bilbao.eus 1 2026-01-28 2026-01-28 ok
mail.bilbao.eus 1 2025-09-30 2025-09-30 nxdomain
webmail.bilbao.eus 1 2025-09-30 2025-09-30 ok
sip.vvmm.bilbao.eus 1 2026-01-28 2026-01-28 ok
AutoDiscover.vvmm.bilbao.eus 1 2025-09-30 2025-09-30 —
lyncdiscover.vvmm.bilbao.eus 1 2026-01-28 2026-01-28 ok
sip.bilbaoturismo.bilbao.eus 1 2026-01-28 2026-01-28 ok
AutoDiscover.bilbaoturismo.bilbao.eus 1 2025-09-30 2025-09-30 —
lyncdiscover.bilbaoturismo.bilbao.eus 1 2026-01-28 2026-01-28 ok
AutoDiscover.ayto.bilbao.eus 1 2025-09-30 2025-09-30 —
sip.bilbao.eus 1 2026-01-28 2026-01-28 ok
AutoDiscover.bilbao.eus 1 2025-09-30 2025-09-30 —
lyncdiscover.bilbao.eus 1 2026-01-28 2026-01-28 ok
AutoDiscover.news.bilbao.eus 1 2025-09-30 2025-09-30 —
sip.cimu.bilbao.eus 1 2026-01-28 2026-01-28 ok
AutoDiscover.cimu.bilbao.eus 1 2025-09-30 2025-09-30 —
lyncdiscover.cimu.bilbao.eus 1 2026-01-28 2026-01-28 ok
www.bilbao.eus 2 2025-07-30 2026-08-05 ok

Programmatic access, with DNS A records: API GET /v1/hosts/bilbao.eus (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/bilbao.eus.