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.

3 hosts · 328 ms

HostCertsFirst seenLast seenDNS
image.sewellmotors.com 2 2026-01-03 2026-01-21 ok
click.sewellmotors.com 1 2025-11-05 2025-11-05 ok
view.sewellmotors.com 1 2025-11-05 2025-11-05 ok

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