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.

15 hosts · 302 ms

HostCertsFirst seenLast seenDNS
lottomart.com 23 2026-04-22 2026-09-25 ok
*.lottomart.com 23 2026-04-22 2026-09-25 —
gb01.lottomart.com 5 2026-05-08 2026-09-08 nodata
*.gb01.lottomart.com 5 2026-05-08 2026-09-08 —
gi01.lottomart.com 5 2026-05-22 2026-09-22 nodata
*.gi01.lottomart.com 5 2026-05-22 2026-09-22 —
ie99.lottomart.com 5 2026-04-22 2026-08-22 nodata
*.ie99.lottomart.com 5 2026-04-22 2026-08-22 —
gi99.lottomart.com 5 2026-04-22 2026-08-22 nodata
*.gi99.lottomart.com 5 2026-04-22 2026-08-22 —
blog.lottomart.com 4 2026-04-19 2026-08-17 ok
apps.lottomart.com 3 2026-09-02 2026-09-02 nodata
*.apps.lottomart.com 3 2026-09-02 2026-09-02 —
contactus.lottomart.com 4 2026-06-04 2026-10-02 ok
fishinfrenzy.lottomart.com 5 2026-05-22 2026-09-19 ok

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