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.

8 hosts · 299 ms

HostCertsFirst seenLast seenDNS
zofri.cl 2 2025-11-12 2025-11-13 ok
*.zofri.cl 2 2025-11-12 2025-11-13 —
zpac.zofri.cl 5 2025-06-13 2026-05-10 ok
feedback.zofri.cl 4 2026-06-04 2026-08-30 ok
crm.zofri.cl 2 2025-10-12 2026-09-12 ok
*.crm.zofri.cl 2 2025-10-12 2026-09-12 —
docs.zofri.cl 13 2026-06-03 2026-09-30 ok
mta-sts.zofri.cl 4 2026-04-13 2026-09-02 ok

Programmatic access, with DNS A records: API GET /v1/hosts/zofri.cl (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/zofri.cl.