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.

9 hosts · 318 ms

HostCertsFirst seenLast seenDNS
gestionprivee1859.ca 5 2025-11-11 2026-09-24 ok
www-ppa.gestionprivee1859.ca 15 2025-09-10 2026-09-24 ok
sec.gestionprivee1859.ca 2 2026-05-15 2026-08-24 ok
pprod.gestionprivee1859.ca 1 2025-07-07 2025-07-07 nxdomain
experience.gestionprivee1859.ca 3 2026-05-15 2026-08-24 ok
experience-pp.gestionprivee1859.ca 7 2025-09-10 2026-08-24 ok
metrics-pp.gestionprivee1859.ca 10 2025-06-11 2026-08-24 ok
metrics.gestionprivee1859.ca 6 2025-06-11 2026-08-24 ok
www.gestionprivee1859.ca 5 2025-11-11 2026-09-24 ok

Programmatic access, with DNS A records: API GET /v1/hosts/gestionprivee1859.ca (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/gestionprivee1859.ca.