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.

44 hosts · 362 ms

HostCertsFirst seenLast seenDNS
creativeplanning.com 48 2025-10-02 2026-10-02 ok
*.creativeplanning.com 23 2025-07-12 2026-09-25 —
cdn1.creativeplanning.com 8 2026-04-17 2026-09-17 ok
cdn2.creativeplanning.com 8 2026-04-17 2026-09-17 ok
cdn3.creativeplanning.com 8 2026-04-17 2026-09-17 ok
mta.creativeplanning.com 5 2026-04-26 2026-08-24 ok
principal-api-staging.creativeplanning.com 2 2026-04-12 2026-08-04 ok
athena-integration.staging.creativeplanning.com 3 2026-02-20 2026-10-05 ok
principal-api.creativeplanning.com 4 2026-02-04 2026-09-20 ok
storybook.creativeplanning.com 6 2026-04-17 2026-09-17 ok
cloud.mail.creativeplanning.com 1 2026-02-22 2026-02-22 ok
image.mail.creativeplanning.com 5 2026-01-29 2026-09-23 ok
click.mail.creativeplanning.com 2 2026-02-22 2026-02-22 ok
view.mail.creativeplanning.com 1 2026-02-22 2026-02-22 ok
email.creativeplanning.com 9 2026-04-20 2026-08-17 ok
livewell.creativeplanning.com 4 2026-04-17 2026-09-04 ok
thewomensforum.creativeplanning.com 16 2026-04-27 2026-08-24 ok
athena-integration.creativeplanning.com 3 2026-02-20 2026-09-21 ok
vpn.creativeplanning.com 7 2025-07-20 2026-09-18 ok
www.vpn.creativeplanning.com 7 2025-07-20 2026-09-18 nxdomain
info.creativeplanning.com 10 2026-04-26 2026-08-22 ok
nerdio.creativeplanning.com 2 2026-05-13 2026-09-05 ok
dev2026cp.creativeplanning.com 11 2026-05-08 2026-08-14 ok
bcp.creativeplanning.com 1 2026-07-28 2026-07-28 nxdomain
syncapp.creativeplanning.com 6 2026-04-17 2026-09-17 ok
wp.creativeplanning.com 11 2026-05-07 2026-10-04 ok
retirementservices.creativeplanning.com 16 2026-05-05 2026-08-31 ok
alts.creativeplanning.com 4 2026-04-15 2026-08-14 ok
documents.creativeplanning.com 3 2026-05-13 2026-09-25 ok
payments.creativeplanning.com 2 2026-04-30 2026-04-30 ok
*.reports.creativeplanning.com 3 2025-09-15 2026-08-16 —
mta-sts.creativeplanning.com 10 2026-05-23 2026-09-19 ok
meeting-bus.creativeplanning.com 6 2026-04-12 2026-08-21 ok
status.creativeplanning.com 1 2026-07-28 2026-07-28 ok
connect.creativeplanning.com 4 2026-04-17 2026-08-15 ok
extranet.creativeplanning.com 5 2026-05-15 2026-09-12 ok
cloud.retirement.creativeplanning.com 2 2026-02-18 2026-02-18 ok
image.retirement.creativeplanning.com 5 2026-02-02 2026-09-23 ok
click.retirement.creativeplanning.com 2 2026-02-18 2026-02-18 ok
view.retirement.creativeplanning.com 2 2026-02-18 2026-02-18 ok
trust.creativeplanning.com 4 2025-10-20 2026-09-20 ok
documents-dev.creativeplanning.com 2 2026-05-13 2026-09-25 ok
meeting-fw.creativeplanning.com 7 2026-04-12 2026-08-21 ok
www.creativeplanning.com 21 2025-10-02 2026-10-02 ok

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