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.

4 hosts · 257 ms

HostCertsFirst seenLast seen
shiksha.com 24 2025-12-28 2026-08-18
*.shiksha.com 6 2026-03-11 2026-03-12
shiksha.shiksha.com 5 2026-06-01 2026-09-27
autodiscover.shiksha.com 8 2026-03-19 2026-09-23

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