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.

10 hosts · 206 ms

HostCertsFirst seenLast seenDNS
bpalc.fr 3 2025-08-05 2026-07-21 ok
static.bpalc.fr 6 2026-06-03 2026-10-01 ok
aide.bpalc.fr 3 2025-08-05 2026-07-21 ok
comm-interne.bpalc.fr 6 2026-06-03 2026-10-01 ok
www.demanderappeltel.bpalc.fr 4 2026-04-20 2026-08-18 ok
www.gestiontel.bpalc.fr 4 2026-04-20 2026-08-18 ok
newsroom.bpalc.fr 5 2026-05-30 2026-09-13 ok
pqm.bpalc.fr 6 2026-06-03 2026-10-01 ok
gps.bpalc.fr 3 2026-06-08 2026-08-07 ok
www.bpalc.fr 3 2025-08-05 2026-07-21 ok

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