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.

14 hosts · 283 ms

HostCertsFirst seenLast seenDNS
inextenso-patrimoine.fr 5 2026-04-13 2026-08-13 ok
mail.inextenso-patrimoine.fr 5 2026-04-21 2026-09-04 ok
eye.mail.inextenso-patrimoine.fr 6 2026-04-21 2026-09-04 ok
img.mail.inextenso-patrimoine.fr 6 2026-04-21 2026-09-04 ok
click.mail.inextenso-patrimoine.fr 6 2026-05-11 2026-09-08 ok
landings.mail.inextenso-patrimoine.fr 6 2026-04-21 2026-09-04 ok
forms.mail.inextenso-patrimoine.fr 6 2026-04-21 2026-09-04 ok
enterpriseregistration.inextenso-patrimoine.fr 2 2025-11-19 2026-06-08 ok
api.espaceclients.inextenso-patrimoine.fr 3 2026-06-19 2026-08-18 ok
ws.api.espaceclients.inextenso-patrimoine.fr 3 2026-06-19 2026-08-18 ok
app.espaceclients.inextenso-patrimoine.fr 3 2026-06-19 2026-08-18 ok
mta-sts.inextenso-patrimoine.fr 5 2026-04-30 2026-08-28 ok
projet.inextenso-patrimoine.fr 4 2026-04-13 2026-08-11 ok
www.inextenso-patrimoine.fr 4 2026-04-15 2026-08-13 ok

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