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.

9 hosts · 252 ms

HostCertsFirst seenLast seenDNS
fanaticsmarkets.com 22 2025-09-04 2026-09-15 ok
*.fanaticsmarkets.com 17 2025-12-09 2026-09-15 —
landing-page.fanaticsmarkets.com 4 2025-12-12 2026-07-22 ok
fanaticsmarkets.marketing.fanaticsmarkets.com 1 2025-09-07 2025-09-07 nxdomain
www.fanaticsmarkets.marketing.fanaticsmarkets.com 1 2025-09-07 2025-09-07 nxdomain
fanaticsmarkets-preview.marketing.fanaticsmarkets.com 3 2025-09-07 2026-08-08 ok
www.fanaticsmarkets-preview.marketing.fanaticsmarkets.com 2 2025-09-07 2026-08-08 ok
support.fanaticsmarkets.com 2 2025-08-29 2026-07-30 ok
www.fanaticsmarkets.com 7 2025-09-04 2026-08-05 ok

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