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.

6 hosts · 304 ms

HostCertsFirst seenLast seenDNS
idesk.mx 28 2025-06-17 2026-09-28 ok
*.idesk.mx 28 2025-06-17 2026-09-28 —
soporte.idesk.mx 8 2026-04-19 2026-08-15 ok
blog.idesk.mx 8 2026-04-18 2026-08-14 ok
contacto.idesk.mx 9 2026-05-22 2026-09-17 ok
www.idesk.mx 8 2026-05-03 2026-08-29 ok

Programmatic access, with DNS A records: API GET /v1/hosts/idesk.mx (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/idesk.mx.