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 · 363 ms

HostCertsFirst seenLast seenDNS
glance-led.com 13 2026-04-14 2026-09-25 ok
glance-scroll.glance-led.com 12 2026-04-28 2026-08-25 ok
www.dev.glance-led.com 15 2026-04-10 2026-09-24 ok
www.glance-led.com 13 2026-04-12 2026-09-26 ok

Programmatic access, with DNS A records: API GET /v1/hosts/glance-led.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/glance-led.com.