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.

9 hosts · 162 ms

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HostCertsFirst seenLast seen
edy.rakuten.co.jp 2 2026-05-22 2026-09-18
pointcharge.edy.rakuten.co.jp 3 2026-04-29 2026-09-18
stg.pointcharge.edy.rakuten.co.jp 3 2025-09-11 2026-08-20
online.edy.rakuten.co.jp 13 2026-02-03 2026-09-18
stg.edy.rakuten.co.jp 2 2026-04-01 2026-09-04
online.api.edy.rakuten.co.jp 11 2026-02-03 2026-07-17
stg.online.api.edy.rakuten.co.jp 3 2025-09-12 2026-08-21
unified-sdk.edy.rakuten.co.jp 14 2025-10-16 2026-09-16
*.unified-sdk.edy.rakuten.co.jp 2 2025-10-16 2026-09-04

Programmatic access: API GET /v1/hosts/edy.rakuten.co.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/edy.rakuten.co.jp.