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.

12 hosts · 196 ms

HostCertsFirst seenLast seen
usbcali.edu.co 15 2026-05-22 2026-06-22
*.usbcali.edu.co 16 2026-05-22 2026-06-22
sibad.usbcali.edu.co 11 2026-04-15 2026-09-30
servicedesk.usbcali.edu.co 8 2026-04-15 2026-08-13
micampusvirtual.usbcali.edu.co 3 2026-03-13 2026-09-25
www.micampusvirtual.usbcali.edu.co 3 2026-03-13 2026-09-25
adfs.adm.usbcali.edu.co 6 2026-05-22 2026-05-27
sts.adm.usbcali.edu.co 6 2026-05-22 2026-05-27
mta-sts.correo.usbcali.edu.co 2 2026-05-23 2026-08-02
mta-sts.usbcali.edu.co 3 2026-04-30 2026-09-19
ecampus.usbcali.edu.co 2 2025-11-28 2026-05-05
www.ecampus.usbcali.edu.co 2 2025-11-28 2026-05-05

Programmatic access: API GET /v1/hosts/usbcali.edu.co (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/usbcali.edu.co.