Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

13 hosts · 341 ms

HostCertsFirst seenLast seen
cuddle-jp.com 6 2025-06-21 2026-09-01
*.cuddle-jp.com 6 2025-06-21 2026-09-01
doc.cuddle-jp.com 8 2026-05-08 2026-09-03
place.cuddle-jp.com 1 2026-01-29 2026-01-29
*.place.cuddle-jp.com 1 2026-01-29 2026-01-29
service.cuddle-jp.com 3 2025-09-29 2026-08-30
*.service.cuddle-jp.com 3 2025-09-29 2026-08-30
fortune.cuddle-jp.com 1 2026-02-01 2026-02-01
*.fortune.cuddle-jp.com 1 2026-02-01 2026-02-01
affiliate.cuddle-jp.com 1 2025-11-09 2025-11-09
*.affiliate.cuddle-jp.com 1 2025-11-09 2025-11-09
news.cuddle-jp.com 8 2026-05-08 2026-09-03
support.cuddle-jp.com 6 2026-05-19 2026-09-16

Programmatic access: API GET /v1/hosts/cuddle-jp.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/cuddle-jp.com.