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.

28 hosts · 268 ms

HostCertsFirst seenLast seenDNS
kashable.com 1 2026-01-07 2026-01-07 ok
*.kashable.com 1 2026-01-07 2026-01-07 —
qa.kashable.com 4 2025-09-13 2026-08-31 nodata
*.qa.kashable.com 4 2025-09-13 2026-08-31 —
servicing.kashable.com 3 2025-09-30 2026-08-31 nodata
*.servicing.kashable.com 3 2025-09-30 2026-08-31 —
marketing.kashable.com 4 2025-08-01 2026-08-31 nodata
*.marketing.kashable.com 4 2025-08-01 2026-08-31 —
stg.kashable.com 2 2025-09-13 2026-08-31 ok
*.stg.kashable.com 2 2025-09-13 2026-08-31 —
bi.kashable.com 3 2025-09-13 2026-08-31 nxdomain
*.bi.kashable.com 3 2025-09-13 2026-08-31 —
n8n.kashable.com 6 2025-08-23 2026-08-31 servfail
*.n8n.kashable.com 6 2025-08-23 2026-08-31 —
demo.kashable.com 2 2025-09-13 2026-08-31 nodata
*.demo.kashable.com 3 2025-06-12 2026-08-31 —
corp.kashable.com 4 2025-09-12 2026-08-31 servfail
*.corp.kashable.com 4 2025-09-12 2026-08-31 —
coder.kashable.com 3 2026-04-15 2026-09-15 ok
*.coder.kashable.com 4 2026-04-15 2026-09-15 —
partners.kashable.com 1 2026-09-29 2026-09-29 ok
auth.partners.kashable.com 1 2026-09-29 2026-09-29 ok
us.kashable.com 3 2025-09-13 2026-08-31 servfail
*.us.kashable.com 3 2025-09-13 2026-08-31 —
vault.kashable.com 4 2026-08-18 2026-08-18 nxdomain
trust.kashable.com 7 2026-05-28 2026-09-23 ok
dev.kashable.com 4 2025-09-13 2026-08-31 nodata
*.dev.kashable.com 4 2025-09-13 2026-08-31 —

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