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.

8 hosts · 351 ms

HostCertsFirst seenLast seenDNS
akatsuki-sc.com 3 2025-09-30 2026-10-05 ok
ifa.akatsuki-sc.com 2 2026-06-03 2026-08-18 ok
stg-ifa.akatsuki-sc.com 1 2026-09-16 2026-09-16 ok
corp.akatsuki-sc.com 2 2026-06-03 2026-08-18 ok
mta-sts.akatsuki-sc.com 3 2026-04-19 2026-09-08 ok
recruit.akatsuki-sc.com 1 2025-11-11 2025-11-11 ok
www.recruit.akatsuki-sc.com 1 2025-11-11 2025-11-11 nxdomain
www.akatsuki-sc.com 2 2025-09-30 2026-10-05 ok

Programmatic access, with DNS A records: API GET /v1/hosts/akatsuki-sc.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/akatsuki-sc.com.