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.

14 hosts · 210 ms

HostCertsFirst seenLast seenDNS
metlife.sk 5 2025-12-12 2026-09-11 ok
eposta.metlife.sk 10 2025-10-30 2026-08-07 ok
ismet-eap-testsm.metlife.sk 1 2026-02-02 2026-02-02 ok
ismet-testsm.metlife.sk 3 2025-08-08 2026-08-10 ok
ssologin.metlife.sk 2 2025-12-31 2026-05-15 ok
qa.ssologin.metlife.sk 1 2025-12-10 2025-12-10 nxdomain
ismet-eap.metlife.sk 10 2025-12-15 2026-08-07 ok
ismet.metlife.sk 10 2025-12-15 2026-08-07 ok
ismet-eap-test.metlife.sk 1 2026-02-02 2026-02-02 ok
ismet-test.metlife.sk 3 2025-08-08 2026-08-10 ok
epostatest.metlife.sk 10 2025-10-17 2026-08-07 ok
www.metlife.sk 8 2025-07-22 2026-09-08 ok
greenap.www.metlife.sk 2 2025-10-14 2025-10-14 nxdomain
greenus.www.metlife.sk 2 2025-10-14 2025-10-14 nxdomain

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