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.

7 hosts · 215 ms

HostCertsFirst seenLast seen
airslate.com 19 2025-11-30 2026-09-29
*.airslate.com 19 2025-11-30 2026-09-29
certified.airslate.com 8 2026-05-14 2026-09-09
integration-onlyoffice.airslate.com 1 2025-11-03 2025-11-03
marketing.airslate.com 10 2026-04-22 2026-08-19
policies.airslate.com 14 2026-05-23 2026-09-18
www.airslate.com 8 2026-06-06 2026-10-02

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