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) · 380 ms

HostCertsFirst seenLast seenDNS
sharecare.com 29 2025-07-07 2026-08-25 ok
*.sharecare.com 35 2025-06-11 2026-08-25 —
*.pscprod1.sharecare.com 1 2026-01-20 2026-01-20 —
*.sadprod1.sharecare.com 1 2026-02-18 2026-02-18 —
*.pscpre1.sharecare.com 1 2026-01-20 2026-01-20 —
*.padmin1.sharecare.com 1 2026-01-18 2026-01-18 —
*.phdsadmin1.sharecare.com 2 2025-10-07 2026-09-06 —
testdemo2.sharecare.com 1 2026-08-31 2026-08-31 —
*.k8s2.sharecare.com 2 2025-08-23 2026-07-22 —
www2.sharecare.com 9 2026-04-20 2026-09-17 ok
covid19.sharecare.com 6 2026-05-20 2026-10-03 ok
*.hca.sharecare.com 4 2025-06-28 2026-06-23 —
*.qa.hca.sharecare.com 2 2025-06-28 2026-05-28 —
*.stage.hca.sharecare.com 2 2025-06-28 2026-05-28 —
*.uat.hca.sharecare.com 2 2025-06-28 2026-05-28 —
*.dev.hca.sharecare.com 2 2025-06-28 2026-05-28 —
qa.sharecare.com 4 2025-07-07 2026-07-17 nodata
*.qa.sharecare.com 17 2025-07-07 2026-08-16 —
id.qa.sharecare.com 8 2026-04-18 2026-08-15 ok
cf.qa.sharecare.com 1 2025-08-18 2025-08-18 nxdomain
scportal.qa.sharecare.com 4 2026-06-06 2026-10-04 ok
cvs.qa.sharecare.com 1 2026-03-24 2026-03-24 nxdomain
scgateway.qa.sharecare.com 4 2026-06-05 2026-10-03 ok
*.pkc.sharecare.com 10 2025-07-23 2026-08-25 —
email.lead.sharecare.com 3 2026-04-22 2026-09-22 ok
id.sharecare.com 8 2026-04-19 2026-08-17 ok
askmd.sharecare.com 6 2026-05-10 2026-10-05 ok
learn-cdn-askmd.sharecare.com 5 2026-04-20 2026-10-01 ok
learn-askmd.sharecare.com 5 2026-04-18 2026-09-25 ok
*.embrace.sharecare.com 2 2025-07-23 2026-06-23 —
styleguide.sharecare.com 4 2026-04-18 2026-08-14 ok
acstyleguide.sharecare.com 4 2026-04-21 2026-08-17 ok
stage.sharecare.com 6 2025-07-31 2026-08-11 nodata
*.stage.sharecare.com 26 2025-06-11 2026-08-25 —
id.stage.sharecare.com 8 2026-04-19 2026-08-16 ok
askmd.stage.sharecare.com 6 2026-05-05 2026-09-06 ok
learn-cdn-askmd.stage.sharecare.com 6 2026-04-19 2026-09-29 ok
learn-askmd.stage.sharecare.com 5 2026-04-22 2026-10-03 ok
cf.stage.sharecare.com 1 2025-08-18 2025-08-18 nxdomain
scportal.stage.sharecare.com 3 2026-04-15 2026-08-13 ok
scgateway.stage.sharecare.com 3 2026-04-15 2026-08-13 ok
thisbadge.sharecare.com 3 2026-07-13 2026-10-05 ok
*.console.sharecare.com 3 2025-11-04 2026-10-04 —
*.qa.console.sharecare.com 3 2025-11-04 2026-10-04 —
*.stage.console.sharecare.com 3 2025-11-04 2026-10-04 —
*.uat.console.sharecare.com 3 2025-11-04 2026-10-04 —
*.dev.console.sharecare.com 3 2025-11-04 2026-10-04 —
email.tpe.sharecare.com 2 2025-08-22 2026-07-23 ok
*.mycare.sharecare.com 1 2025-07-18 2025-07-18 —
email.share.sharecare.com 2 2025-08-22 2026-07-23 ok
remote.sharecare.com 1 2025-07-08 2025-07-08 ok
cf.sharecare.com 1 2025-08-18 2025-08-18 nxdomain
*.wellbeing.sharecare.com 2 2025-07-23 2026-06-23 —
link.gowellbeing.sharecare.com 1 2026-09-02 2026-09-02 ok
winftg.sharecare.com 5 2026-04-12 2026-09-15 ok
koch.sharecare.com 1 2025-10-15 2025-10-15 ok
scwifi.sharecare.com 1 2026-02-10 2026-02-10 nxdomain
email.oi.sharecare.com 2 2025-08-22 2026-07-23 ok
email.mail-scaleback.sharecare.com 3 2026-04-22 2026-09-22 ok
link.sharecare.com 3 2026-04-22 2026-09-22 ok
servicedesk.sharecare.com 1 2025-07-08 2025-07-08 ok
scportal.sharecare.com 3 2026-04-15 2026-08-13 ok
email.mail.sharecare.com 3 2026-04-22 2026-09-22 ok
email.qaemail.sharecare.com 2 2025-08-22 2026-07-23 ok
*.federalmogul.sharecare.com 1 2025-07-18 2025-07-18 —
email.m.sharecare.com 2 2025-08-22 2026-07-23 ok
dgc-cdn.sharecare.com 2 2025-08-26 2026-07-27 ok
srl-cdn.sharecare.com 2 2025-07-28 2026-06-28 ok
design.sharecare.com 4 2026-04-19 2026-08-15 ok
*.admin.sharecare.com 1 2026-01-18 2026-01-18 —
*.qa.admin.sharecare.com 1 2026-01-18 2026-01-18 —
*.stage.admin.sharecare.com 1 2026-01-18 2026-01-18 —
*.uat.admin.sharecare.com 1 2026-01-18 2026-01-18 —
*.dev.admin.sharecare.com 1 2026-01-18 2026-01-18 —
testdemo.sharecare.com 2 2026-08-19 2026-08-19 nxdomain
*.hd1mop.sharecare.com 1 2025-12-20 2025-12-20 —
*.hd2mop.sharecare.com 2 2025-10-08 2026-09-08 —
*.sc1dwmop.sharecare.com 2 2025-10-22 2026-09-22 —
corp.sharecare.com 1 2025-12-29 2025-12-29 nodata
*.corp.sharecare.com 2 2025-12-29 2025-12-29 —
ftp.sharecare.com 3 2026-03-30 2026-09-16 ok
email.acq.sharecare.com 2 2025-08-22 2026-07-23 ok
pagemanager.sharecare.com 5 2026-05-20 2026-10-03 ok
smetrics.sharecare.com 2 2026-02-11 2026-02-11 ok
docs.sharecare.com 6 2026-04-23 2026-09-28 ok
hds.sharecare.com 20 2025-11-29 2026-09-25 ok
*.hds.sharecare.com 8 2025-07-23 2026-09-17 —
qa.hds.sharecare.com 1 2025-11-29 2025-11-29 nodata
*.qa.hds.sharecare.com 1 2025-11-29 2025-11-29 —
gateway-login.qa.hds.sharecare.com 10 2026-05-02 2026-08-29 ok
ondemand.hds.sharecare.com 1 2025-12-05 2025-12-05 ok
securesend.hds.sharecare.com 3 2025-08-27 2026-09-16 ok
stage.hds.sharecare.com 1 2025-11-29 2025-11-29 nodata
*.stage.hds.sharecare.com 1 2025-11-29 2025-11-29 —
gateway-login.stage.hds.sharecare.com 10 2026-05-01 2026-08-28 ok
secure.hds.sharecare.com 3 2025-08-27 2026-09-16 ok
gateway-login.hds.sharecare.com 10 2026-05-16 2026-09-12 ok
dev.hds.sharecare.com 1 2025-11-29 2025-11-29 nodata
*.dev.hds.sharecare.com 1 2025-11-29 2025-11-29 —
email.es.sharecare.com 2 2025-08-22 2026-07-23 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/sharecare.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/sharecare.com.