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.

32 hosts · 363 ms

HostCertsFirst seenLast seenDNS
arara.com 1 2025-12-21 2025-12-21 ok
*.arara.com 1 2025-12-21 2025-12-21 —
card.ac.arara.com 2 2026-04-07 2026-09-07 ok
stg.card.ac.arara.com 3 2026-04-19 2026-09-19 ok
dev.card.ac.arara.com 3 2026-01-14 2026-08-18 ok
mypage.ac.arara.com 2 2026-04-07 2026-09-07 ok
stg.mypage.ac.arara.com 3 2026-04-19 2026-09-19 ok
console-i.ac.arara.com 3 2026-04-29 2026-09-29 ok
stg.console-i.ac.arara.com 1 2025-12-29 2025-12-29 ok
support.ac.arara.com 5 2026-05-25 2026-09-22 ok
static.arara.com 2 2026-03-09 2026-08-09 ok
am.arara.com 6 2026-04-17 2026-09-30 ok
*.am.arara.com 8 2025-07-28 2026-09-09 —
devapi02.am.arara.com 2 2025-08-13 2026-07-14 ok
unsub.am.arara.com 4 2025-11-26 2026-08-16 ok
stg-unsub.am.arara.com 6 2025-11-28 2026-09-24 ok
acmec.am.arara.com 1 2026-07-09 2026-07-09 ok
mmapi-test-be.am.arara.com 1 2026-03-21 2026-03-21 nxdomain
vx27jlbgvprgg35948ccq5eqzkxnik0.mmapi-test-be.am.arara.com 1 2026-03-21 2026-03-21 nxdomain
mmapi-dev-be.am.arara.com 2 2026-03-23 2026-08-23 ok
2a57j78ex0uyy8at6kclz7z5721735c.mmapi-dev-be.am.arara.com 2 2026-03-23 2026-08-23 nxdomain
cmm-eng.am.arara.com 10 2025-10-01 2026-09-01 ok
tracking-stg.am.arara.com 1 2025-07-28 2025-07-28 nxdomain
mm-stg.am.arara.com 1 2026-03-17 2026-03-17 nxdomain
et-stg.am.arara.com 2 2025-07-30 2026-06-30 ok
devapi.am.arara.com 2 2025-08-14 2026-07-15 ok
cr.am.arara.com 5 2026-04-21 2026-08-20 ok
docs.am.arara.com 5 2026-04-28 2026-08-26 ok
support.am.arara.com 9 2026-04-22 2026-09-30 ok
staging.support.am.arara.com 5 2026-07-28 2026-09-18 ok
mm-front-test.am.arara.com 1 2026-03-17 2026-03-17 nxdomain
cashless.arara.com 2 2026-03-25 2026-08-25 ok

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