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.

6 hosts · 392 ms

HostCertsFirst seenLast seen
winamax.it 4 2025-08-10 2026-07-22
*.winamax.it 4 2025-08-10 2026-07-22
prelive.winamax.it 4 2025-07-17 2026-07-23
*.prelive.winamax.it 4 2025-07-17 2026-07-23
dev.winamax.it 3 2025-08-09 2026-07-09
*.dev.winamax.it 3 2025-08-09 2026-07-09

Programmatic access: API GET /v1/hosts/winamax.it (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/winamax.it.