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.

12 hosts · 330 ms

HostCertsFirst seenLast seenDNS
ca-cb.fr 6 2025-09-29 2026-09-08 ok
psd2-api.ca-cb.fr 2 2025-10-06 2026-09-08 ok
pp.tecl.ca-cb.fr 3 2026-03-30 2026-09-22 ok
pp.agir.ca-cb.fr 2 2026-03-30 2026-09-22 ok
offres.ca-cb.fr 1 2025-10-28 2025-10-28 nxdomain
societaires.ca-cb.fr 2 2025-09-15 2026-09-07 ok
entreprises.ca-cb.fr 1 2026-06-12 2026-06-12 ok
infoclient.ca-cb.fr 3 2025-07-15 2026-07-06 ok
hom-infoclient.ca-cb.fr 3 2025-07-15 2026-07-06 ok
pp.ca-transfert.ca-cb.fr 2 2026-04-07 2026-09-29 ok
www.ca-cb.fr 2 2025-09-29 2026-09-08 ok
pp.pactes-territoriaux.ca-cb.fr 2 2026-03-30 2026-09-22 ok

Programmatic access, with DNS A records: API GET /v1/hosts/ca-cb.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/ca-cb.fr.