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.

20 hosts · 304 ms

HostCertsFirst seenLast seenDNS
immuta.com 16 2025-11-11 2026-09-09 ok
*.immuta.com 4 2025-11-11 2026-06-03 —
cloud.immuta.com 1 2025-12-24 2025-12-24 ok
*.cloud.immuta.com 1 2025-12-24 2025-12-24 —
instance.immuta.com 3 2025-09-15 2026-08-16 nodata
*.instance.immuta.com 3 2025-09-15 2026-08-16 —
staging.immuta.com 10 2026-04-17 2026-08-14 ok
learning.immuta.com 11 2026-05-20 2026-09-15 ok
changelog.immuta.com 8 2026-05-01 2026-08-29 ok
track.immuta.com 11 2026-04-21 2026-08-20 ok
hands-on.immuta.com 10 2026-04-22 2026-09-24 ok
documentation.immuta.com 10 2026-05-12 2026-09-07 ok
go.immuta.com 9 2026-04-19 2026-09-15 ok
links.immuta.com 5 2026-05-11 2026-09-25 ok
mta-sts.immuta.com 3 2026-04-18 2026-09-07 ok
status.immuta.com 4 2026-04-16 2026-08-13 ok
smart.immuta.com 4 2026-04-08 2026-08-06 ok
support.immuta.com 7 2026-06-13 2026-09-21 ok
dev.immuta.com 12 2026-04-15 2026-08-11 ok
www.immuta.com 10 2026-04-19 2026-09-09 ok

Programmatic access, with DNS A records: API GET /v1/hosts/immuta.com (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/immuta.com.