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.

4 hosts · 248 ms

HostCertsFirst seenLast seenDNS
checkers.com.na 12 2025-07-08 2026-10-04 ok
*.checkers.com.na 6 2025-07-08 2026-10-04 —
specials.checkers.com.na 1 2025-10-08 2025-10-08 ok
www.specials.checkers.com.na 1 2025-10-08 2025-10-08 nxdomain

Programmatic access, with DNS A records: API GET /v1/hosts/checkers.com.na (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/checkers.com.na.