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.

25 hosts · 231 ms

HostCertsFirst seenLast seen
esky.cz 12 2025-12-17 2026-09-11
*.esky.cz 5 2025-12-17 2026-08-11
www2.esky.cz 7 2026-05-04 2026-09-11
audioteka.esky.cz 6 2026-04-16 2026-10-01
auta.esky.cz 2 2026-01-28 2026-08-03
parkoviste.esky.cz 1 2026-01-15 2026-01-15
www.parkoviste.esky.cz 1 2026-01-15 2026-01-15
staging.blog.esky.cz 5 2026-05-04 2026-09-01
nl.esky.cz 6 2026-05-07 2026-10-01
m.esky.cz 8 2026-05-05 2026-10-01
etm.esky.cz 5 2026-04-29 2026-09-16
zalando.esky.cz 6 2026-04-16 2026-10-01
go.esky.cz 5 2026-04-24 2026-08-23
app.esky.cz 10 2026-04-21 2026-09-29
answear.esky.cz 6 2026-04-16 2026-10-01
uber.esky.cz 6 2026-04-16 2026-10-01
wizzair.esky.cz 6 2026-04-16 2026-10-01
www.wizzair.esky.cz 6 2026-04-16 2026-10-01
traveltalks.esky.cz 6 2026-05-07 2026-10-01
wallet.esky.cz 8 2026-05-05 2026-10-01
ww.esky.cz 8 2026-05-05 2026-10-01
www.esky.cz 7 2026-05-04 2026-09-11
wwww.esky.cz 8 2026-05-05 2026-10-01
blackfriday.esky.cz 10 2026-04-21 2026-09-29
slevy.esky.cz 6 2026-04-16 2026-10-01

Programmatic access: API GET /v1/hosts/esky.cz (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/esky.cz.