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 · 270 ms

HostCertsFirst seenLast seenDNS
taurasconsulting.com 1 2026-06-16 2026-06-16 ok
mta-sts.taurasconsulting.com 3 2026-04-30 2026-09-19 ok
www.taurasconsulting.com 3 2025-08-23 2026-09-11 ok

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