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.

11 hosts · 330 ms

HostCertsFirst seenLast seenDNS
cargurus.ca 6 2025-06-22 2026-08-19 ok
*.cargurus.ca 3 2025-07-08 2026-08-19 —
dd.cargurus.ca 4 2026-05-12 2026-07-28 ok
link.cargurus.ca 1 2025-11-20 2025-11-20 ok
spm.cargurus.ca 4 2025-11-17 2026-09-22 ok
gtm.cargurus.ca 1 2026-01-21 2026-01-21 ok
sp.cargurus.ca 2 2025-06-15 2026-05-31 nxdomain
dealers.cargurus.ca 1 2026-06-15 2026-06-15 ok
partnercontent.cargurus.ca 3 2025-06-22 2026-05-23 ok
link.dev.cargurus.ca 2 2025-09-14 2026-08-15 ok
www.cargurus.ca 3 2025-06-22 2026-05-23 ok

Programmatic access, with DNS A records: API GET /v1/hosts/cargurus.ca (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/cargurus.ca.