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.

100 hosts (first page) · 494 ms

HostCertsFirst seenLast seenDNS
uhc.com 28 2025-08-06 2026-09-22 ok
apsi0000.uhc.com 1 2026-03-06 2026-03-06 nxdomain
apsi4000.uhc.com 1 2026-06-23 2026-06-23 nxdomain
apsi8000.uhc.com 1 2026-03-25 2026-03-25 nxdomain
rp000142100.uhc.com 2 2025-09-08 2026-06-30 nxdomain
rp000075100.uhc.com 2 2026-05-06 2026-05-29 nxdomain
apsi0200.uhc.com 1 2026-02-13 2026-02-13 nxdomain
rn000120300.uhc.com 2 2025-08-08 2026-02-23 nxdomain
docker.rn000120300.uhc.com 2 2025-08-08 2026-02-23 nxdomain
rn000173300.uhc.com 2 2025-09-25 2026-03-12 nxdomain
rp000139400.uhc.com 2 2025-07-22 2026-06-24 nxdomain
rp000060500.uhc.com 3 2025-09-05 2026-08-13 nxdomain
rn000142800.uhc.com 2 2025-07-21 2025-09-04 nxdomain
rp000122900.uhc.com 3 2026-03-05 2026-03-05 nxdomain
rp000138900.uhc.com 2 2025-07-22 2026-06-24 nxdomain
apsi4010.uhc.com 3 2026-02-27 2026-02-27 nxdomain
ccs001a001n010.uhc.com 2 2026-04-02 2026-09-07 ok
ccs002a001n010.uhc.com 2 2026-04-02 2026-09-07 ok
ccs001b001n010.uhc.com 2 2026-04-01 2026-09-07 ok
ccs002b001n010.uhc.com 2 2026-04-02 2026-09-07 ok
ccs001a001p010.uhc.com 2 2026-05-18 2026-09-04 ok
ccs002a001p010.uhc.com 4 2026-05-18 2026-09-15 ok
ccs001b001p010.uhc.com 2 2026-05-18 2026-09-04 ok
ccs002b001p010.uhc.com 2 2026-05-18 2026-09-15 ok
ccs001b002p010.uhc.com 2 2026-05-18 2026-09-04 ok
ccs002b002p010.uhc.com 3 2026-05-18 2026-09-15 ok
ccs001b003p010.uhc.com 2 2026-05-18 2026-09-04 ok
ccs002b003p010.uhc.com 2 2026-05-18 2026-09-04 ok
ccs001b004p010.uhc.com 1 2026-08-04 2026-08-04 ok
ccs002b004p010.uhc.com 2 2026-08-11 2026-08-11 ok
ccs001b005p010.uhc.com 1 2026-08-04 2026-08-04 ok
ccs002b005p010.uhc.com 2 2026-08-11 2026-08-11 ok
apsi4110.uhc.com 3 2026-02-27 2026-02-27 nxdomain
rp000128110.uhc.com 3 2025-09-03 2026-08-13 nxdomain
apsi4210.uhc.com 3 2026-02-27 2026-02-27 nxdomain
ovarp300310.uhc.com 1 2026-06-18 2026-06-18 nxdomain
apsi4310.uhc.com 3 2026-02-27 2026-02-27 nxdomain
aapsi4310.uhc.com 3 2026-02-27 2026-02-27 nxdomain
rp000139310.uhc.com 1 2026-02-09 2026-02-09 nxdomain
rn000136410.uhc.com 2 2025-07-21 2026-06-22 nxdomain
apsi4710.uhc.com 3 2026-02-27 2026-02-27 nxdomain
rn000142810.uhc.com 6 2025-09-03 2026-05-01 nxdomain
apsi4810.uhc.com 3 2026-02-27 2026-02-27 nxdomain
rp000144910.uhc.com 1 2026-04-07 2026-04-07 nxdomain
apsi4910.uhc.com 3 2026-02-27 2026-02-27 nxdomain
apsi4a10.uhc.com 3 2026-02-27 2026-02-27 nxdomain
aws-connect-macd-prod10.uhc.com 11 2026-07-16 2026-09-13 ok
aws-connect-macd-api-prod10.uhc.com 1 2026-07-23 2026-07-23 ok
aws-app-connect-pull-data-prd10.uhc.com 2 2026-08-06 2026-08-06 ok
aws-app-connect-presigned-prd10.uhc.com 1 2026-07-23 2026-07-23 ok
aws-connect-ea-enterprise-prd10.uhc.com 11 2026-07-16 2026-09-13 ok
aws-connect-ea-ga-enterprise-prd10.uhc.com 2 2026-07-20 2026-07-20 ok
aws-connect-routing-prd10.uhc.com 1 2026-07-24 2026-07-24 nxdomain
aws-connect-bulkskilling-api-prd10.uhc.com 2 2026-09-08 2026-09-08 ok
aws-connect-ash-api-prd10.uhc.com 2 2026-07-24 2026-07-27 ok
aws-connect-bs-ui-prd10.uhc.com 7 2026-09-08 2026-09-10 ok
aws-connect-entdesk-prd10.uhc.com 1 2026-07-24 2026-07-24 ok
aws-connect-entdesk-ga-cfg-ecds-prd10.uhc.com 2 2026-07-24 2026-07-28 ok
aws-connect-entdesk-cfg-ecds-prd10.uhc.com 9 2026-07-30 2026-09-27 ok
aws-connect-entdesk-apps-prd10.uhc.com 9 2026-07-30 2026-09-27 ok
aws-app-connect-api-proxy-prd10.uhc.com 2 2026-08-06 2026-08-06 ok
myuhcprd10.uhc.com 4 2026-03-16 2026-07-30 nxdomain
ecgprd10.uhc.com 3 2026-06-29 2026-08-20 nxdomain
aws-connect-macd-stage10.uhc.com 11 2026-07-24 2026-09-30 ok
aws-connect-macd-api-stage10.uhc.com 1 2026-07-24 2026-07-24 ok
myuhcoff10.uhc.com 2 2026-03-19 2026-07-30 nxdomain
aws-connect-entdesk-ga-appsv1-stg10.uhc.com 1 2026-09-11 2026-09-11 nxdomain
aws-app-connect-pull-data-stg10.uhc.com 2 2026-08-06 2026-08-06 ok
aws-app-connect-presigned-stg10.uhc.com 3 2026-07-24 2026-10-01 ok
aws-connect-ea-enterprise-stg10.uhc.com 13 2026-07-16 2026-09-13 ok
aws-connect-ea-ga-enterprise-stg10.uhc.com 3 2026-08-04 2026-08-04 ok
aws-connect-routing-stg10.uhc.com 2 2026-07-24 2026-10-01 nxdomain
aws-connect-bulkskilling-api-stg10.uhc.com 2 2026-08-20 2026-08-20 ok
aws-connect-ash-api-stg10.uhc.com 2 2026-07-24 2026-07-27 ok
aws-connect-bs-ui-stg10.uhc.com 7 2026-08-20 2026-08-20 ok
aws-connect-entdesk-stg10.uhc.com 1 2026-07-24 2026-07-24 ok
aws-connect-entdesk-ga-configloader-stg10.uhc.com 1 2026-09-11 2026-09-11 nxdomain
aws-connect-entdesk-ga-cfg-ecds-stg10.uhc.com 2 2026-07-24 2026-07-28 ok
aws-connect-entdesk-cfg-ecds-stg10.uhc.com 12 2026-07-24 2026-09-21 ok
aws-connect-entdesk-apps-stg10.uhc.com 13 2026-07-24 2026-09-21 ok
aws-app-connect-api-proxy-stg10.uhc.com 2 2026-08-06 2026-08-06 ok
ecgstg10.uhc.com 6 2026-06-24 2026-08-06 nxdomain
ecgpp10.uhc.com 3 2026-06-29 2026-08-20 nxdomain
aws-connect-entdesk-ga-appsv1-dev10.uhc.com 1 2026-09-11 2026-09-11 ok
aws-app-connect-pull-data-dev10.uhc.com 2 2026-08-06 2026-08-06 ok
aws-connect-macd-dev10.uhc.com 13 2026-07-17 2026-09-30 ok
aws-app-connect-presigned-dev10.uhc.com 3 2026-07-16 2026-10-01 ok
aws-connect-ea-enterprise-dev10.uhc.com 14 2026-07-16 2026-10-01 ok
aws-connect-ea-ga-enterprise-dev10.uhc.com 4 2026-08-04 2026-10-01 ok
aws-connect-routing-dev10.uhc.com 2 2026-07-21 2026-10-01 nxdomain
aws-connect-macd-api-dev10.uhc.com 1 2026-07-20 2026-07-20 ok
aws-connect-bulkskilling-api-dev10.uhc.com 2 2026-08-07 2026-08-07 nxdomain
aws-connect-ash-api-dev10.uhc.com 2 2026-07-16 2026-07-27 ok
aws-connect-bs-ui-dev10.uhc.com 6 2026-08-07 2026-08-20 ok
aws-connect-entdesk-dev10.uhc.com 1 2026-07-22 2026-07-22 ok
aws-connect-entdesk-ga-configloader-dev10.uhc.com 1 2026-09-11 2026-09-11 nxdomain
aws-connect-entdesk-ga-cfg-ecds-dev10.uhc.com 2 2026-07-22 2026-07-28 ok
aws-connect-entdesk-cfg-ecds-dev10.uhc.com 12 2026-07-22 2026-09-19 ok
aws-connect-entdesk-apps-dev10.uhc.com 14 2026-07-22 2026-09-19 ok
aws-app-connect-api-proxy-dev10.uhc.com 2 2026-08-06 2026-08-06 ok

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/uhc.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/uhc.com.