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.

5 hosts · 348 ms

HostCertsFirst seenLast seenDNS
coricelli.com 25 2026-05-12 2026-09-30 ok
*.coricelli.com 20 2026-05-12 2026-09-30 —
blockchain.coricelli.com 5 2026-05-26 2026-08-22 ok
shop.coricelli.com 5 2026-05-27 2026-08-22 ok
www.coricelli.com 5 2026-05-27 2026-08-22 ok

Programmatic access, with DNS A records: API GET /v1/hosts/coricelli.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/coricelli.com.