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.

4 hosts · 242 ms

HostCertsFirst seenLast seenDNS
yvr.com 5 2025-07-15 2026-06-30 ok
*.yvr.com 5 2025-07-15 2026-06-30 —
sbwebtest21.yvr.com 2 2026-04-16 2026-04-16 ok
cyberdashboard.yvr.com 1 2026-10-02 2026-10-02 nodata

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