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.

15 hosts · 375 ms

HostCertsFirst seenLast seenDNS
cyberpuerta.mx 21 2025-08-02 2026-09-06 ok
*.cyberpuerta.mx 19 2026-05-10 2026-09-06 —
hpefs-prod.cyberpuerta.mx 1 2025-12-15 2025-12-15 nxdomain
www.hpefs-prod.cyberpuerta.mx 1 2025-12-15 2025-12-15 nxdomain
storybook.alchemy-force.cyberpuerta.mx 5 2026-06-02 2026-09-30 ok
storybook-web-mobile.cyberpuerta.mx 5 2026-06-04 2026-10-02 ok
base.cyberpuerta.mx 1 2026-09-02 2026-09-02 ok
storybook.base.cyberpuerta.mx 6 2026-05-27 2026-09-24 ok
ztoash.cyberpuerta.mx 2 2026-05-28 2026-08-08 ok
storybook.cyberpuerta.mx 4 2026-04-11 2026-08-09 ok
io.cyberpuerta.mx 3 2026-05-29 2026-09-15 ok
voip.cyberpuerta.mx 1 2026-09-23 2026-09-23 ok
storybook.app.cyberpuerta.mx 5 2026-06-04 2026-10-02 ok
ctr.cr.cyberpuerta.mx 3 2026-04-27 2026-08-17 ok
www.cyberpuerta.mx 2 2025-08-02 2026-08-11 ok

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