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.

12 hosts · 378 ms

HostCertsFirst seenLast seenDNS
dominos.jp 6 2026-01-15 2026-08-26 ok
*.dominos.jp 6 2026-01-15 2026-08-26 —
olo-graph-kiosk.dominos.jp 4 2026-05-18 2026-07-27 ok
l.dominos.jp 5 2026-05-29 2026-09-26 ok
signup.vip.dominos.jp 1 2025-12-30 2025-12-30 ok
assets.vip.dominos.jp 1 2025-12-09 2025-12-09 ok
miassets.vip.dominos.jp 1 2026-02-02 2026-02-02 ok
career.dominos.jp 5 2026-05-21 2026-09-18 ok
analytics.dominos.jp 3 2026-05-08 2026-08-27 ok
deals.dominos.jp 2 2026-05-30 2026-08-14 ok
olo-graph-kiosk-at.dominos.jp 4 2026-05-18 2026-07-27 ok
recruit.dominos.jp 3 2025-10-18 2026-09-17 ok

Programmatic access, with DNS A records: API GET /v1/hosts/dominos.jp (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/dominos.jp.