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.

22 hosts · 300 ms

HostCertsFirst seenLast seenDNS
monobank.ua 26 2025-06-11 2026-09-12 ok
*.monobank.ua 30 2025-06-11 2026-09-23 —
tracking.ib42873.monobank.ua 5 2026-05-25 2026-09-20 ok
ca.monobank.ua 3 2025-10-14 2026-09-14 ok
infra.monobank.ua 3 2026-08-20 2026-08-20 nodata
*.infra.monobank.ua 3 2026-08-20 2026-08-20 —
game.monobank.ua 2 2025-10-24 2026-05-29 ok
*.game.monobank.ua 2 2025-10-24 2026-05-29 —
ai.monobank.ua 9 2026-03-05 2026-09-29 ok
*.ai.monobank.ua 9 2026-03-05 2026-09-29 —
my-check.monobank.ua 4 2026-04-13 2026-08-11 ok
lk.monobank.ua 5 2026-04-23 2026-08-21 ok
video-users-manager.monobank.ua 3 2026-04-21 2026-06-23 nxdomain
t.monobank.ua 3 2026-04-21 2026-06-23 ok
lkt.monobank.ua 5 2026-04-24 2026-08-21 ok
v.monobank.ua 2 2026-05-12 2026-05-12 ok
lk-dev.monobank.ua 5 2026-05-30 2026-09-27 ok
lkt-dev.monobank.ua 5 2026-05-30 2026-09-26 ok
lkw-dev.monobank.ua 5 2026-05-30 2026-09-27 ok
turndev.monobank.ua 2 2026-05-12 2026-05-12 ok
lkw.monobank.ua 5 2026-04-23 2026-08-20 ok
box.monobank.ua 10 2026-05-19 2026-09-14 ok

Programmatic access, with DNS A records: API GET /v1/hosts/monobank.ua (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/monobank.ua.