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.

11 hosts · 303 ms

HostCertsFirst seenLast seen
id.amazongames.com 3 2025-11-07 2026-10-08
*.id.amazongames.com 1 2025-12-21 2025-12-21
gamma.id.amazongames.com 3 2025-11-06 2026-10-07
*.gamma.id.amazongames.com 1 2025-12-21 2025-12-21
beta.id.amazongames.com 3 2025-11-06 2026-10-07
*.beta.id.amazongames.com 1 2025-12-23 2025-12-23
assets.mail.id.amazongames.com 1 2026-01-22 2026-01-22
help.id.amazongames.com 6 2026-05-22 2026-09-16
gamma.help.id.amazongames.com 5 2026-05-21 2026-09-14
beta.help.id.amazongames.com 5 2026-05-28 2026-10-08
analytics.id.amazongames.com 4 2025-06-24 2026-06-26

Programmatic access: API GET /v1/hosts/id.amazongames.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/id.amazongames.com.