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.

14 hosts · 321 ms

HostCertsFirst seenLast seenDNS
investinet.com 1 2025-10-11 2025-10-11 ok
reporting.investinet.com 2 2025-07-24 2026-06-24 ok
dev-reporting.investinet.com 2 2025-08-22 2026-07-23 ok
www.reporting.investinet.com 2 2025-07-24 2026-06-24 ok
s.investinet.com 1 2026-01-21 2026-01-21 ok
waythru.investinet.com 6 2025-10-11 2026-09-21 ok
api.waythru.investinet.com 3 2025-10-11 2026-09-12 ok
www.api.waythru.investinet.com 1 2025-10-11 2025-10-11 nxdomain
www.waythru.investinet.com 1 2025-10-11 2025-10-11 nxdomain
www.investinet.com 1 2025-10-11 2025-10-11 ok
pathway.investinet.com 4 2025-10-15 2026-09-21 ok
api.pathway.investinet.com 4 2025-10-13 2026-09-13 ok
www.api.pathway.investinet.com 4 2025-10-13 2026-09-13 nodata
www.pathway.investinet.com 1 2025-10-15 2025-10-15 nxdomain

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