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.

19 hosts · 183 ms

HostCertsFirst seenLast seen
zone.ee 3 2026-06-14 2026-08-13
pma.zone.ee 4 2026-04-20 2026-08-18
web.zone.ee 4 2026-06-11 2026-10-09
imapsync.zone.ee 5 2026-04-25 2026-08-23
www.imapsync.zone.ee 5 2026-04-25 2026-08-23
blog.zone.ee 3 2026-06-14 2026-08-13
abi.zone.ee 5 2026-05-16 2026-09-13
blogi.zone.ee 5 2026-05-16 2026-09-13
tugi.zone.ee 5 2026-05-16 2026-09-13
klienditugi.zone.ee 5 2026-05-16 2026-09-13
webmail.zone.ee 4 2026-04-18 2026-08-16
postman.zone.ee 4 2026-04-19 2026-08-17
help.zone.ee 5 2026-05-16 2026-09-13
files.zone.ee 5 2026-05-16 2026-09-13
miks.zone.ee 5 2026-05-16 2026-09-13
mta-sts.zone.ee 5 2026-05-22 2026-09-20
status.zone.ee 5 2026-05-16 2026-09-13
trustpilot.zone.ee 5 2026-06-08 2026-10-06
www.zone.ee 3 2026-06-14 2026-08-13

Programmatic access: API GET /v1/hosts/zone.ee (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/zone.ee.