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.

100 hosts (first page) · 273 ms

HostCertsFirst seenLast seen
athenahealth.com 8 2025-08-22 2026-09-04
cp6100.athenahealth.com 1 2025-10-14 2025-10-14
nva-corp-sip5001.athenahealth.com 3 2025-08-12 2026-07-14
autopilot5001.athenahealth.com 2 2025-08-01 2026-07-30
rch-corp-sip6001.athenahealth.com 2 2025-08-20 2026-07-14
dc-devjira1.athenahealth.com 4 2025-09-22 2026-09-29
www.dc-devjira1.athenahealth.com 4 2025-09-22 2026-09-29
dc-devjira3.athenahealth.com 1 2026-03-10 2026-03-10
www.dc-devjira3.athenahealth.com 1 2026-03-10 2026-03-10
cloud5.athenahealth.com 1 2026-04-27 2026-04-27
cloud6.athenahealth.com 1 2026-04-27 2026-04-27
cloud99.athenahealth.com 1 2026-04-27 2026-04-27
cloud9.athenahealth.com 1 2026-04-27 2026-04-27
stage-jira.athenahealth.com 1 2026-07-06 2026-07-06
athenajira.athenahealth.com 1 2026-01-13 2026-01-13
stage-athenajira.athenahealth.com 1 2026-07-06 2026-07-06
mydata.athenahealth.com 5 2026-04-11 2026-08-23
sb.mydata.athenahealth.com 2 2026-03-17 2026-07-26
e2e.mydata.athenahealth.com 4 2026-03-31 2026-08-11
ci.mydata.athenahealth.com 2 2026-03-31 2026-08-10
docs.mydata.athenahealth.com 5 2026-04-11 2026-08-23
sb.docs.mydata.athenahealth.com 2 2026-03-17 2026-07-26
e2e.docs.mydata.athenahealth.com 2 2026-03-31 2026-08-10
ci.docs.mydata.athenahealth.com 2 2026-03-31 2026-08-10
pns.docs.mydata.athenahealth.com 4 2026-03-31 2026-08-10
pns.mydata.athenahealth.com 3 2026-03-31 2026-08-10
appkey.mydata.athenahealth.com 5 2026-04-11 2026-08-23
sb.appkey.mydata.athenahealth.com 2 2026-03-17 2026-07-26
e2e.appkey.mydata.athenahealth.com 4 2026-03-31 2026-08-11
ci.appkey.mydata.athenahealth.com 2 2026-03-31 2026-08-07
pns.appkey.mydata.athenahealth.com 2 2026-03-31 2026-08-10
datadog-ua.athenahealth.com 1 2026-03-23 2026-03-23
clienttrain-nva.athenahealth.com 1 2026-03-02 2026-03-02
salesdemo-nva.athenahealth.com 1 2026-03-02 2026-03-02
preview-nva.athenahealth.com 1 2026-03-02 2026-03-02
sandbox-nva.athenahealth.com 1 2026-03-02 2026-03-02
pbsnva.athenahealth.com 1 2025-11-22 2025-11-22
englab.athenahealth.com 1 2026-05-19 2026-05-19
*.englab.athenahealth.com 1 2026-05-19 2026-05-19
assethub.athenahealth.com 2 2025-07-14 2026-06-14
azurehc.athenahealth.com 2 2026-07-03 2026-07-03
*.azurehc.athenahealth.com 2 2026-07-03 2026-07-03
svc.athenahealth.com 2 2026-04-03 2026-08-10
*.svc.athenahealth.com 2 2026-04-03 2026-08-10
nsr-p.svc.athenahealth.com 1 2026-06-03 2026-06-03
nsr-x.svc.athenahealth.com 2 2025-09-12 2026-10-01
brand.athenahealth.com 2 2025-08-11 2026-07-27
patient.preprod.athenahealth.com 3 2026-03-12 2026-08-12
*.patient.preprod.athenahealth.com 3 2026-03-12 2026-08-12
px.preprod.athenahealth.com 4 2025-06-13 2026-05-14
*.px.preprod.athenahealth.com 4 2025-06-13 2026-05-14
*.cf.px.preprod.athenahealth.com 4 2025-06-13 2026-05-14
*.ch.px.preprod.athenahealth.com 4 2025-06-13 2026-05-14
*.patient.px.preprod.athenahealth.com 4 2025-06-13 2026-05-14
*.subscriptionmgmt.patient.px.preprod.athenahealth.com 4 2025-06-13 2026-05-14
identity.preprod.athenahealth.com 4 2025-10-21 2026-02-05
nimbus-nonprod.athenahealth.com 2 2025-10-24 2026-09-28
*.nimbus-nonprod.athenahealth.com 2 2025-10-24 2026-09-28
scheduling.nonprod.athenahealth.com 2 2025-07-14 2026-06-14
*.scheduling.nonprod.athenahealth.com 2 2025-07-14 2026-06-14
patient.nonprod.athenahealth.com 3 2025-08-06 2026-02-13
*.patient.nonprod.athenahealth.com 4 2025-08-06 2026-02-13
securechat.patient.nonprod.athenahealth.com 3 2025-09-23 2026-08-24
*.securechat.patient.nonprod.athenahealth.com 3 2025-09-23 2026-08-24
subscriptionmgmt.patient.nonprod.athenahealth.com 1 2025-10-29 2025-10-29
*.subscriptionmgmt.patient.nonprod.athenahealth.com 1 2025-10-29 2025-10-29
px.nonprod.athenahealth.com 6 2026-03-16 2026-08-17
*.px.nonprod.athenahealth.com 6 2026-03-16 2026-08-17
foundry-prod.px.nonprod.athenahealth.com 1 2026-09-28 2026-09-28
vibe.px.nonprod.athenahealth.com 2 2026-04-24 2026-09-24
*.vibe.px.nonprod.athenahealth.com 2 2026-04-24 2026-09-24
ch.px.nonprod.athenahealth.com 4 2025-08-12 2026-07-13
*.ch.px.nonprod.athenahealth.com 4 2025-08-12 2026-07-13
spark.px.nonprod.athenahealth.com 2 2026-02-23 2026-07-11
*.spark.px.nonprod.athenahealth.com 2 2026-02-23 2026-07-11
cat-prd.athenahealth.com 3 2025-10-14 2026-10-05
preprd.athenahealth.com 4 2026-01-30 2026-01-30
cloud.athenahealth.com 3 2026-04-01 2026-09-28
*.cloud.athenahealth.com 3 2026-04-01 2026-09-28
testcloud.athenahealth.com 1 2026-02-09 2026-02-09
*.testcloud.athenahealth.com 1 2026-02-09 2026-02-09
marketplace.athenahealth.com 1 2026-05-12 2026-05-12
rch-corp-vpn-triage.athenahealth.com 1 2025-10-27 2025-10-27
ihe.athenahealth.com 1 2026-04-27 2026-04-27
mobile.athenahealth.com 7 2025-08-22 2026-08-10
institute.athenahealth.com 1 2026-07-10 2026-07-10
*.institute.athenahealth.com 1 2026-07-10 2026-07-10
stg.institute.athenahealth.com 4 2026-07-08 2026-09-23
athenainstitute.athenahealth.com 5 2026-07-08 2026-09-23
archive.athenahealth.com 3 2026-03-09 2026-08-13
howithrive.athenahealth.com 1 2025-08-18 2025-08-18
apps.sb.nsf.athenahealth.com 2 2025-09-12 2026-10-01
apps.e2e.nsf.athenahealth.com 2 2025-09-12 2026-10-01
apps.ci.nsf.athenahealth.com 2 2025-09-12 2026-10-01
apps.pro.nsf.athenahealth.com 1 2026-06-03 2026-06-03
apps.pns.nsf.athenahealth.com 1 2025-12-16 2025-12-16
www.apps.pns.nsf.athenahealth.com 1 2025-12-16 2025-12-16
landing.athenahealth.com 7 2025-08-22 2026-08-10
onboarding.athenahealth.com 2 2026-10-07 2026-10-07
scheduling.athenahealth.com 2 2025-07-14 2026-06-14

Showing the first 100 hostnames — sign in with GitHub or Google to page the full list, or use the API with an API key: GET /v1/hosts/athenahealth.com.

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/athenahealth.com.