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.

79 hosts · 357 ms

HostCertsFirst seenLast seenDNS
cspire.com 9 2025-06-09 2026-09-28 ok
*.cspire.com 5 2025-09-18 2026-09-28 —
e911.cspire.com 1 2026-01-29 2026-01-29 ok
www.e911.cspire.com 1 2026-01-29 2026-01-29 nxdomain
vvm2.cspire.com 2 2025-07-08 2026-07-24 ok
www.vvm2.cspire.com 2 2025-07-08 2026-07-24 nxdomain
ta.cspire.com 1 2026-02-06 2026-02-06 ok
lab.cspire.com 2 2025-10-06 2026-09-28 nodata
ocf-lab.cspire.com 1 2026-02-03 2026-02-03 ok
www.ocf-lab.cspire.com 1 2026-02-03 2026-02-03 nxdomain
*.lab.cspire.com 2 2025-10-06 2026-09-28 —
deg.lab.cspire.com 3 2025-07-17 2026-09-28 ok
*.deg.lab.cspire.com 1 2026-09-28 2026-09-28 —
www.deg.lab.cspire.com 2 2025-07-17 2026-07-07 nxdomain
vvmlab.cspire.com 2 2025-09-16 2026-09-30 ok
www.vvmlab.cspire.com 2 2025-09-16 2026-09-30 nxdomain
helpme.cspire.com 2 2026-03-04 2026-09-15 ok
remote.cspire.com 2 2026-01-02 2026-01-02 ok
ocf.cspire.com 1 2026-06-11 2026-06-11 ok
deg.cspire.com 1 2026-06-15 2026-06-15 ok
www.deg.cspire.com 1 2026-06-15 2026-06-15 nxdomain
tracking.cspire.com 2 2026-04-27 2026-04-27 ok
blog.cspire.com 12 2026-04-23 2026-08-19 ok
auth.cspire.com 13 2026-04-26 2026-08-22 ok
*.auth.cspire.com 13 2026-04-26 2026-08-22 —
ai.cspire.com 4 2026-04-15 2026-08-10 ok
prodapi.cspire.com 18 2026-03-02 2026-09-09 ok
*.prodapi.cspire.com 16 2026-04-25 2026-09-05 —
www.prodapi.cspire.com 2 2026-03-02 2026-09-09 nxdomain
testapi.cspire.com 22 2026-04-25 2026-09-19 ok
*.testapi.cspire.com 22 2026-04-25 2026-09-19 —
*.platform-prod-cp.prod.launchdeck.cspire.com 3 2026-07-09 2026-09-07 —
*.coder.prod.aws.launchdeck.cspire.com 2 2026-07-24 2026-09-29 —
*.web-uat.test.aws.launchdeck.cspire.com 1 2026-09-03 2026-09-03 —
*.web-dev.dev.aws.launchdeck.cspire.com 5 2026-06-06 2026-09-01 —
*.network-genius-dev.dev.aws.launchdeck.cspire.com 1 2026-09-08 2026-09-08 —
*.aks-poc-dev-cp.dev.launchdeck.cspire.com 2 2026-05-28 2026-05-28 —
*.platform-dev-cp.dev.launchdeck.cspire.com 3 2026-06-08 2026-08-07 —
codeium.cspire.com 1 2025-08-01 2025-08-01 ok
www.codeium.cspire.com 1 2025-08-01 2025-08-01 nxdomain
join.cspire.com 1 2026-06-08 2026-06-08 ok
soc-vpn.cspire.com 2 2026-01-02 2026-01-02 ok
toc-vpn.cspire.com 2 2026-01-02 2026-01-02 ok
nerdio.cspire.com 2 2026-02-22 2026-06-14 ok
selfhelp.cspire.com 8 2026-03-04 2026-09-15 ok
refer.cspire.com 5 2026-05-02 2026-08-28 ok
c3jr.cspire.com 2 2025-08-13 2026-07-14 ok
2a57j78jochasuenieszuah3dvnpnga.c3jr.cspire.com 2 2025-08-13 2026-07-14 nodata
m.your.cspire.com 2 2026-05-05 2026-10-05 ok
res.your.cspire.com 2 2026-05-05 2026-10-05 ok
t.your.cspire.com 2 2026-05-05 2026-10-05 ok
images.cspire.com 2 2026-03-05 2026-08-31 ok
campaigns.cspire.com 10 2026-05-01 2026-09-27 ok
business.cspire.com 3 2026-06-12 2026-08-14 ok
test-business.cspire.com 4 2026-04-09 2026-08-12 ok
events.cspire.com 1 2025-11-12 2025-11-12 ok
mta-sts.cspire.com 2 2026-06-10 2026-08-21 ok
crm-screenpop-widget.cspire.com 2 2025-11-04 2026-10-05 nxdomain
www.crm-screenpop-widget.cspire.com 2 2025-11-04 2026-10-05 nxdomain
crm.screenpop.widget.cspire.com 6 2026-04-24 2026-10-01 ok
target.cspire.com 4 2025-08-27 2026-08-29 ok
remotesupport.cspire.com 2 2026-03-04 2026-09-15 ok
interest.cspire.com 2 2025-07-13 2026-07-13 ok
test-interest.cspire.com 2 2025-07-13 2026-07-13 ok
test.cspire.com 2 2026-04-09 2026-09-28 nodata
*.test.cspire.com 2 2026-04-09 2026-09-28 —
relay-ext.cspire.com 3 2025-08-05 2026-08-05 ok
www.cspire.com 24 2025-06-09 2026-09-04 ok
test-b-www.cspire.com 14 2026-08-02 2026-10-01 ok
*.test-b-www.cspire.com 14 2026-08-02 2026-10-01 —
int-www.cspire.com 7 2026-08-02 2026-10-01 ok
*.int-www.cspire.com 7 2026-08-02 2026-10-01 —
test-www.cspire.com 17 2026-04-25 2026-09-19 ok
*.test-www.cspire.com 17 2026-04-25 2026-09-19 —
dev-www.cspire.com 6 2026-08-02 2026-09-30 ok
*.dev-www.cspire.com 6 2026-08-02 2026-09-30 —
*.www.cspire.com 18 2026-04-26 2026-09-04 —
prodmwgateway.cspire.com 44 2026-05-16 2026-10-02 ok
*.prodmwgateway.cspire.com 28 2026-05-16 2026-10-02 —

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