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.

12 hosts · 276 ms

HostCertsFirst seenLast seenDNS
solidgate.com 17 2025-07-25 2026-09-11 ok
*.solidgate.com 10 2025-07-25 2026-08-25 —
id.solidgate.com 4 2025-09-24 2026-09-15 ok
www.id.solidgate.com 4 2025-09-24 2026-09-15 nodata
www.blog.solidgate.com 2 2025-09-30 2026-08-31 ok
payment-school.solidgate.com 5 2026-04-12 2026-09-20 ok
api-docs.solidgate.com 3 2026-06-09 2026-08-08 ok
status.solidgate.com 8 2026-04-23 2026-09-04 ok
support.solidgate.com 8 2026-05-19 2026-09-14 ok
www.support.solidgate.com 2 2025-09-30 2026-08-31 ok
www.solidgate.com 5 2026-02-02 2026-10-05 ok
api-docs-treasury.solidgate.com 1 2026-10-06 2026-10-06 ok

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