Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

38 hosts · 281 ms

HostCertsFirst seenLast seen
fotc.com 22 2026-04-21 2026-09-22
*.fotc.com 19 2026-04-21 2026-09-22
dev2.fotc.com 1 2026-04-15 2026-04-15
google.fotc.com 2 2026-06-03 2026-07-29
knowledgebase.fotc.com 3 2026-06-03 2026-09-16
gophish.fotc.com 1 2026-09-22 2026-09-22
bimi.fotc.com 13 2026-06-03 2026-09-29
portal.fotc.com 5 2026-04-23 2026-10-01
gw-portal.fotc.com 2 2026-07-07 2026-08-28
optima.portal.fotc.com 2 2026-04-23 2026-06-18
invoice.portal.fotc.com 2 2026-07-06 2026-08-28
auth.portal.fotc.com 2 2026-07-06 2026-08-28
api.portal.fotc.com 4 2026-04-23 2026-08-28
keycloak.portal.fotc.com 2 2026-04-23 2026-06-13
admin.portal.fotc.com 5 2026-04-23 2026-10-01
autodebit.portal.fotc.com 4 2026-04-23 2026-08-28
gl.fotc.com 9 2026-04-13 2026-10-04
mail.fotc.com 4 2026-05-26 2026-07-31
multimedia.mail.fotc.com 4 2026-05-26 2026-07-31
www.mail.fotc.com 4 2026-05-26 2026-07-31
url.fotc.com 4 2026-06-10 2026-09-08
sl.fotc.com 2 2026-08-27 2026-09-28
webinar-ro.fotc.com 5 2026-04-29 2026-09-11
webinar.fotc.com 4 2026-04-13 2026-08-18
as.fotc.com 2 2026-05-06 2026-06-29
analytics.fotc.com 5 2026-05-18 2026-09-14
docs.fotc.com 3 2026-06-02 2026-09-18
shifts.fotc.com 3 2026-04-25 2026-06-19
fotcnet.fotc.com 3 2026-05-29 2026-09-15
gt.fotc.com 5 2026-04-19 2026-09-28
drive.audit.fotc.com 5 2026-04-15 2026-09-26
driveaudit.fotc.com 4 2026-04-30 2026-10-08
support.fotc.com 5 2026-05-03 2026-08-31
webinar-hu.fotc.com 5 2026-05-13 2026-09-28
dev.fotc.com 3 2026-05-25 2026-09-09
www.fotc.com 3 2026-07-20 2026-07-20
buddy.fotc.com 3 2026-05-01 2026-08-18
academy.fotc.com 3 2026-06-25 2026-09-08

Programmatic access: API GET /v1/hosts/fotc.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/fotc.com.