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.

30 hosts · 382 ms

HostCertsFirst seenLast seenDNS
fidal.com 4 2026-03-07 2026-08-18 ok
legalmedia.fidal.com 7 2026-05-15 2026-09-22 ok
preprodlegalmedia.fidal.com 7 2026-05-18 2026-09-15 ok
monitoring.fidalia.fidal.com 4 2026-04-11 2026-08-09 ok
monitoring.qual.fidalia.fidal.com 4 2026-04-20 2026-08-18 ok
chat.qual.fidalia.fidal.com 4 2026-04-20 2026-08-18 ok
matomo-admin.fidalia.fidal.com 1 2026-04-11 2026-04-11 ok
matomo.fidalia.fidal.com 1 2026-04-11 2026-04-11 ok
chat.fidalia.fidal.com 4 2026-04-10 2026-08-08 ok
preprod.fidal.com 7 2026-05-21 2026-09-22 ok
cir-ppd.fidal.com 1 2026-06-09 2026-06-09 ok
immotax-ppd.fidal.com 2 2025-09-23 2026-09-18 ok
fidalsecurity-ppd.fidal.com 1 2026-06-09 2026-06-09 ok
sase.fidal.com 1 2026-04-28 2026-04-28 ok
tracking.fidal.com 4 2026-04-13 2026-08-17 ok
api.fidal.com 1 2026-03-16 2026-03-16 nxdomain
img.nl.fidal.com 8 2026-04-14 2026-08-10 ok
r.nl.fidal.com 3 2026-06-20 2026-09-08 ok
wabam.fidal.com 1 2025-11-03 2025-11-03 ok
documentation.fidal.com 1 2026-04-30 2026-04-30 ok
highq.fidal.com 53 2025-07-11 2026-10-05 ok
cir.fidal.com 3 2025-12-02 2026-06-09 ok
recrutement.fidal.com 3 2025-10-06 2026-10-06 ok
preprod.recrutement.fidal.com 3 2025-10-06 2026-10-06 ok
rhdatapilot.fidal.com 1 2026-06-05 2026-06-05 ok
test-rhdatapilot.fidal.com 1 2026-06-11 2026-06-11 ok
www.fidal.com 10 2026-04-29 2026-08-30 ok
immotax.fidal.com 2 2025-09-23 2026-09-18 ok
novalex.fidal.com 1 2025-11-24 2025-11-24 ok
fidalsecurity.fidal.com 1 2026-06-09 2026-06-09 ok

Programmatic access, with DNS A records: API GET /v1/hosts/fidal.com (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/fidal.com.