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.

17 hosts · 352 ms

HostCertsFirst seenLast seenDNS
legendarywhitetails.com 1 2026-01-08 2026-01-08 ok
returnsportal2.legendarywhitetails.com 8 2026-03-18 2026-09-02 ok
www.returnsportal2.legendarywhitetails.com 8 2026-03-18 2026-09-02 nxdomain
prod.legendarywhitetails.com 2 2025-07-22 2026-05-23 ok
www.prod.legendarywhitetails.com 2 2025-07-22 2026-05-23 nxdomain
stg.legendarywhitetails.com 3 2025-07-21 2026-07-22 ok
www.stg.legendarywhitetails.com 3 2025-07-21 2026-07-22 nxdomain
returnsportal.legendarywhitetails.com 2 2026-03-26 2026-09-09 ok
www.returnsportal.legendarywhitetails.com 2 2026-03-26 2026-09-09 nxdomain
plm.legendarywhitetails.com 1 2026-02-13 2026-02-13 ok
www.plm.legendarywhitetails.com 1 2026-02-13 2026-02-13 ok
ms.legendarywhitetails.com 1 2026-02-25 2026-02-25 ok
www.ms.legendarywhitetails.com 1 2026-02-25 2026-02-25 nxdomain
dev.legendarywhitetails.com 3 2025-07-22 2026-07-23 ok
www.dev.legendarywhitetails.com 3 2025-07-22 2026-07-23 nxdomain
www.legendarywhitetails.com 1 2026-01-08 2026-01-08 ok
community.legendarywhitetails.com 5 2026-04-28 2026-09-11 ok

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