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 · 188 ms

HostCertsFirst seenLast seen
scentsofserenityspa.com 16 2026-05-09 2026-09-27
*.scentsofserenityspa.com 11 2026-05-09 2026-09-27
www.scentsofserenityspa.com 5 2026-05-10 2026-09-08

Programmatic access: API GET /v1/hosts/scentsofserenityspa.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/scentsofserenityspa.com.