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 · 267 ms

HostCertsFirst seenLast seenDNS
generali.sk 1 2026-02-04 2026-02-04 ok
*.generali.sk 1 2026-02-04 2026-02-04 —
execution-ci360.generali.sk 3 2026-04-25 2026-09-25 ok
content-ci360.generali.sk 5 2026-05-01 2026-09-08 ok
delivery-ci360.generali.sk 25 2025-06-12 2026-10-01 ok
dolozenie-dokladov-test2.generali.sk 6 2026-04-18 2026-10-01 ok
vitaj.generali.sk 5 2026-05-27 2026-09-25 ok
reg-vitaj.generali.sk 5 2026-05-27 2026-09-24 ok
www.reg-vitaj.generali.sk 7 2026-06-01 2026-09-27 ok
www.vitaj.generali.sk 7 2026-06-01 2026-09-27 ok
sgtm.generali.sk 3 2026-05-12 2026-08-30 ok
bsign.generali.sk 3 2026-05-19 2026-08-17 ok
nastup.generali.sk 1 2025-12-01 2025-12-01 nxdomain
wallet.generali.sk 2 2025-07-03 2026-06-24 ok
bsign-test.generali.sk 2 2025-09-03 2026-09-04 ok
dolozenie-dokladov-test.generali.sk 6 2026-04-18 2026-10-01 ok
dolozenie-dokladov.generali.sk 14 2026-04-18 2026-10-01 ok
pbx.generali.sk 2 2025-09-16 2026-09-22 ok
narodeniny.generali.sk 1 2025-07-03 2025-07-03 nxdomain
test-narodeniny.generali.sk 1 2025-07-03 2025-07-03 nxdomain
o365reporty.generali.sk 1 2026-02-23 2026-02-23 ok
odkaz.generali.sk 30 2025-09-24 2026-09-22 ok

Programmatic access, with DNS A records: API GET /v1/hosts/generali.sk (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/generali.sk.