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 · 317 ms

HostCertsFirst seenLast seenDNS
galaxus.rs 24 2026-04-13 2026-10-04 ok
*.galaxus.rs 18 2026-04-16 2026-09-03 —
id.galaxus.rs 4 2026-05-18 2026-10-04 nxdomain
test-id.galaxus.rs 4 2026-05-18 2026-10-04 nxdomain
mli.galaxus.rs 2 2026-04-13 2026-09-29 nodata
test-mli.galaxus.rs 2 2026-04-13 2026-09-29 nodata
cmi.galaxus.rs 2 2026-04-13 2026-09-29 nodata
test-cmi.galaxus.rs 2 2026-04-13 2026-09-29 nodata
erp.galaxus.rs 2 2026-04-13 2026-09-29 nodata
test-erp.galaxus.rs 2 2026-04-13 2026-09-29 nodata
dev-erp.galaxus.rs 2 2026-04-13 2026-09-29 nodata
www.galaxus.rs 6 2026-04-13 2026-10-04 ok
test-www.galaxus.rs 6 2026-04-13 2026-10-04 ok
dev-www.galaxus.rs 2 2026-04-13 2026-09-29 nodata

Programmatic access, with DNS A records: API GET /v1/hosts/galaxus.rs (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/galaxus.rs.