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.

49 hosts · 365 ms

HostCertsFirst seenLast seenDNS
k12academics.com 12 2026-05-22 2026-08-22 ok
*.k12academics.com 4 2026-06-15 2026-08-22 —
k12.k12academics.com 6 2026-04-15 2026-08-22 ok
ipv6.k12.k12academics.com 3 2026-06-01 2026-08-22 nxdomain
autoconfig.k12.k12academics.com 3 2026-06-01 2026-08-22 nxdomain
webdisk.k12.k12academics.com 3 2026-06-01 2026-08-22 nxdomain
cpanel.k12.k12academics.com 3 2026-06-01 2026-08-22 nxdomain
mail.k12.k12academics.com 3 2026-06-01 2026-08-22 nxdomain
webmail.k12.k12academics.com 3 2026-06-01 2026-08-22 nxdomain
whm.k12.k12academics.com 3 2026-06-01 2026-08-22 nxdomain
autodiscover.k12.k12academics.com 3 2026-06-01 2026-08-22 nxdomain
cpcalendars.k12.k12academics.com 3 2026-06-01 2026-08-22 nxdomain
cpcontacts.k12.k12academics.com 3 2026-06-01 2026-08-22 nxdomain
www.k12.k12academics.com 3 2026-06-01 2026-08-22 nxdomain
webdisk.old.k12academics.com 2 2026-06-22 2026-06-22 nxdomain
love.k12academics.com 4 2026-07-03 2026-08-31 ok
tracking.k12academics.com 2 2026-07-15 2026-07-15 nxdomain
www.tracking.k12academics.com 2 2026-07-15 2026-07-15 nxdomain
research.k12academics.com 1 2026-08-07 2026-08-07 ok
www.research.k12academics.com 1 2026-08-07 2026-08-07 ok
thisweek.k12academics.com 1 2026-08-08 2026-08-08 ok
www.thisweek.k12academics.com 1 2026-08-08 2026-08-08 ok
link.k12academics.com 2 2026-08-03 2026-10-03 ok
www.link.k12academics.com 2 2026-08-03 2026-10-03 ok
flipbook.k12academics.com 4 2026-06-30 2026-08-28 ok
webdisk.k12academics.com 6 2026-05-28 2026-06-01 ok
cpanel.k12academics.com 8 2026-05-22 2026-06-01 ok
mail.k12academics.com 8 2026-05-22 2026-06-01 ok
webmail.k12academics.com 6 2026-05-28 2026-06-01 ok
benchmarkemail.k12academics.com 2 2026-05-29 2026-05-29 nodata
www.benchmarkemail.k12academics.com 2 2026-06-22 2026-06-22 nxdomain
falconcamp.k12academics.com 2 2026-07-22 2026-07-22 nxdomain
www.falconcamp.k12academics.com 2 2026-07-22 2026-07-22 nxdomain
affiliates.k12academics.com 2 2026-08-11 2026-08-11 ok
www.affiliates.k12academics.com 2 2026-08-11 2026-08-11 ok
links.k12academics.com 3 2026-04-12 2026-05-28 nxdomain
www.links.k12academics.com 4 2026-05-28 2026-06-22 nxdomain
tools.k12academics.com 2 2026-09-18 2026-09-18 ok
www.tools.k12academics.com 2 2026-09-18 2026-09-18 ok
lessonplans.k12academics.com 1 2026-09-28 2026-09-28 ok
www.lessonplans.k12academics.com 1 2026-09-28 2026-09-28 ok
cpcalendars.k12academics.com 6 2026-05-28 2026-06-01 ok
cpcontacts.k12academics.com 6 2026-05-28 2026-06-01 ok
mta-sts.k12academics.com 3 2026-07-09 2026-09-08 ok
www.mta-sts.k12academics.com 3 2026-07-09 2026-09-08 ok
www.k12academics.com 9 2026-05-22 2026-06-15 ok
community.k12academics.com 2 2026-07-22 2026-07-22 ok
findcommunity.k12academics.com 2 2026-07-24 2026-07-24 nodata
www.findcommunity.k12academics.com 2 2026-07-24 2026-07-24 nxdomain

Programmatic access, with DNS A records: API GET /v1/hosts/k12academics.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/k12academics.com.