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.

30 hosts · 360 ms

HostCertsFirst seenLast seenDNS
duvalschools.org 5 2026-05-09 2026-07-28 ok
*.duvalschools.org 22 2025-09-15 2026-10-02 —
ca.duvalschools.org 2 2026-08-03 2026-09-11 nxdomain
pga.duvalschools.org 3 2026-05-22 2026-09-20 ok
public.duvalschools.org 22 2025-09-15 2026-10-02 nodata
fs.public.duvalschools.org 24 2025-09-15 2026-10-02 ok
accounts.public.duvalschools.org 22 2025-09-15 2026-10-02 ok
prie.duvalschools.org 2 2026-02-28 2026-07-18 ok
rise.duvalschools.org 1 2026-02-02 2026-02-02 nodata
*.rise.duvalschools.org 1 2026-02-02 2026-02-02 —
pagehive.duvalschools.org 1 2026-08-09 2026-08-09 ok
ecf.duvalschools.org 2 2026-02-19 2026-07-10 ok
jrapi.duvalschools.org 9 2026-04-22 2026-09-10 nxdomain
orgman.duvalschools.org 2 2026-02-27 2026-07-18 ok
ldap.duvalschools.org 22 2025-09-15 2026-10-02 ok
busreminder.duvalschools.org 2 2026-02-19 2026-07-10 ok
qr.duvalschools.org 4 2026-06-23 2026-09-06 ok
cs.duvalschools.org 2 2026-02-26 2026-07-15 ok
cds.duvalschools.org 2 2026-02-26 2026-07-16 ok
fs.duvalschools.org 22 2025-09-15 2026-10-02 ok
cms.duvalschools.org 2 2026-02-18 2026-06-11 ok
dcps.duvalschools.org 10 2025-09-22 2026-10-04 ok
www.dcps.duvalschools.org 16 2026-05-19 2026-10-02 ok
classroombooklist.duvalschools.org 2 2026-02-11 2026-07-05 ok
hades-dev.duvalschools.org 2 2026-02-24 2026-07-14 ok
betaview.duvalschools.org 2 2026-02-25 2026-07-15 ok
oneview.duvalschools.org 2 2026-02-25 2026-07-14 ok
devview.duvalschools.org 2 2026-02-09 2026-07-04 ok
www.duvalschools.org 12 2026-04-18 2026-10-04 ok
truancy.duvalschools.org 1 2026-06-30 2026-06-30 ok

Programmatic access, with DNS A records: API GET /v1/hosts/duvalschools.org (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/duvalschools.org.