Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

3 hosts · 176 ms

HostCertsFirst seenLast seen
kavacasmartcut.pro 9 2025-09-23 2026-09-19
test.kavacasmartcut.pro 5 2026-06-02 2026-09-30
www.kavacasmartcut.pro 4 2025-09-23 2026-08-26

Programmatic access: API GET /v1/hosts/kavacasmartcut.pro (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/kavacasmartcut.pro.