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.

8 hosts · 202 ms

Download CSV
HostCertsFirst seenLast seen
thescalers.com 12 2026-05-06 2026-10-03
*.thescalers.com 10 2026-05-11 2026-09-23
*.staging.thescalers.com 4 2026-04-21 2026-08-19
email.thescalers.com 9 2026-04-24 2026-08-19
ml.thescalers.com 10 2026-04-23 2026-08-20
info.thescalers.com 8 2026-04-24 2026-08-20
docs.thescalers.com 9 2026-05-30 2026-09-25
www.thescalers.com 7 2026-05-06 2026-10-03

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