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.

26 hosts · 313 ms

HostCertsFirst seenLast seenDNS
morbihan.fr 4 2026-03-03 2026-09-14 ok
*.morbihan.fr 4 2026-03-03 2026-09-14 —
webmail2.morbihan.fr 1 2025-10-06 2025-10-06 ok
csemsig4.morbihan.fr 1 2026-02-08 2026-02-08 ok
*.csemsig4.morbihan.fr 1 2026-02-08 2026-02-08 —
mission1418.morbihan.fr 1 2026-09-18 2026-09-18 ok
blogmission1418.morbihan.fr 1 2026-09-21 2026-09-21 ok
owa.morbihan.fr 6 2026-06-04 2026-09-02 ok
geonature.morbihan.fr 1 2026-09-03 2026-09-03 ok
communipi.morbihan.fr 1 2026-09-21 2026-09-21 ok
webmail.morbihan.fr 1 2025-10-06 2025-10-06 ok
dlmail.morbihan.fr 1 2025-10-06 2025-10-06 nxdomain
autodiscover.morbihan.fr 1 2025-10-06 2025-10-06 ok
lookingforarthur.morbihan.fr 1 2026-09-18 2026-09-18 ok
bloglookingforarthur.morbihan.fr 1 2026-09-21 2026-09-21 ok
portail-actes.morbihan.fr 5 2026-05-23 2026-09-21 ok
wordpress-multisites.morbihan.fr 3 2026-09-18 2026-09-21 ok
rechercher.patrimoines-archives.morbihan.fr 6 2026-04-14 2026-09-08 ok
recherche.archives.morbihan.fr 6 2026-04-14 2026-09-08 ok
generationsheros.morbihan.fr 1 2026-09-21 2026-09-21 ok
aidants.morbihan.fr 6 2025-07-28 2026-07-16 ok
*.aidants.morbihan.fr 4 2025-08-15 2026-07-16 —
www.aidants.morbihan.fr 2 2025-07-28 2026-06-28 nxdomain
recrutement.morbihan.fr 4 2026-04-16 2026-09-18 ok
geonature-test.morbihan.fr 1 2026-09-03 2026-09-03 ok
portail-actes-test.morbihan.fr 5 2026-04-24 2026-08-22 ok

Programmatic access, with DNS A records: API GET /v1/hosts/morbihan.fr (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/morbihan.fr.