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.

3 hosts · 186 ms

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HostCertsFirst seenLast seen
bere.al 10 2026-04-19 2026-10-13
*.bere.al 10 2026-04-19 2026-10-13
www.bere.al 5 2026-05-17 2026-09-10

Programmatic access: API GET /v1/hosts/bere.al (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/bere.al.