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.

83 hosts · 192 ms

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HostCertsFirst seenLast seen
helsana.ch 2 2026-06-12 2026-07-10
ra2.helsana.ch 2 2025-10-08 2026-09-25
portal2.helsana.ch 3 2026-07-09 2026-09-14
testrao2.helsana.ch 1 2025-08-15 2025-08-15
125.helsana.ch 4 2025-09-30 2026-10-12
b2b-a.helsana.ch 2 2025-08-06 2026-06-24
testra.helsana.ch 1 2025-08-21 2025-08-21
b2b.helsana.ch 2 2025-08-06 2026-06-24
statusdashboard.helsana.ch 5 2026-05-20 2026-09-17
exchange.helsana.ch 2 2025-10-14 2026-10-12
procare.helsana.ch 2 2025-10-14 2026-10-12
www.procare.helsana.ch 2 2025-10-14 2026-10-12
formulare.helsana.ch 4 2026-04-19 2026-08-17
avmsecure.helsana.ch 1 2025-12-19 2025-12-19
m1.update.helsana.ch 1 2025-12-08 2025-12-08
res1.update.helsana.ch 1 2025-12-07 2025-12-07
t1.update.helsana.ch 1 2025-12-08 2025-12-08
remote.helsana.ch 2 2025-10-08 2026-09-25
berichterstattung.helsana.ch 2 2025-10-14 2026-10-12
www.berichterstattung.helsana.ch 2 2025-10-14 2026-10-12
m1.blog.helsana.ch 1 2025-12-08 2025-12-08
res1.blog.helsana.ch 1 2025-12-07 2025-12-07
t1.blog.helsana.ch 1 2025-12-08 2025-12-08
plusauth.helsana.ch 1 2026-06-18 2026-06-18
api.helsana.ch 1 2026-01-08 2026-01-08
portal.helsana.ch 8 2025-10-16 2026-10-12
guest-portal.helsana.ch 1 2026-07-02 2026-07-02
www.portal.helsana.ch 2 2025-10-16 2026-10-12
partnerportal.helsana.ch 2 2025-10-16 2026-10-12
www.partnerportal.helsana.ch 2 2025-10-16 2026-10-12
guestportal.helsana.ch 1 2025-09-10 2025-09-10
trustmail.helsana.ch 2 2026-07-01 2026-09-24
hcm.helsana.ch 3 2026-02-14 2026-09-29
forum.helsana.ch 2 2025-10-14 2026-10-12
schaden.helsana.ch 5 2026-04-24 2026-08-22
multidomain.helsana.ch 1 2026-06-11 2026-06-11
login.helsana.ch 10 2026-05-27 2026-09-23
testrao.helsana.ch 1 2025-08-15 2025-08-15
m1.info.helsana.ch 1 2025-12-08 2025-12-08
res1.info.helsana.ch 1 2025-12-07 2025-12-07
t1.info.helsana.ch 1 2025-12-08 2025-12-08
rapporto.helsana.ch 2 2025-10-14 2026-10-12
www.rapporto.helsana.ch 2 2025-10-14 2026-10-12
smtp-exo.helsana.ch 1 2025-11-06 2025-11-06
werbeartikel-shop.helsana.ch 6 2025-11-26 2026-10-13
www.werbeartikel-shop.helsana.ch 6 2025-11-26 2026-10-13
hplus-prp.helsana.ch 1 2026-06-04 2026-06-04
www.hplus-prp.helsana.ch 1 2026-06-04 2026-06-04
autodiscover.helsana.ch 2 2025-10-14 2026-10-12
jobs.helsana.ch 1 2026-01-22 2026-01-22
services.helsana.ch 2 2025-07-17 2026-06-19
crmcloud-services.helsana.ch 2 2025-07-17 2026-06-19
forms.helsana.ch 1 2025-11-05 2025-11-05
careers.helsana.ch 1 2026-05-18 2026-05-18
reports.helsana.ch 2 2025-07-25 2026-07-22
www.reports.helsana.ch 4 2026-04-21 2026-08-23
m1.plus.helsana.ch 1 2025-12-08 2025-12-08
res1.plus.helsana.ch 1 2025-12-07 2025-12-07
t1.plus.helsana.ch 1 2025-12-08 2025-12-08
hplus.helsana.ch 1 2026-06-04 2026-06-04
www.hplus.helsana.ch 1 2026-06-04 2026-06-04
b2b-t.helsana.ch 2 2025-08-06 2026-06-24
collect.helsana.ch 5 2025-09-27 2026-09-29
target.helsana.ch 4 2026-03-24 2026-09-09
jira-webforms.intranet.helsana.ch 2 2026-02-05 2026-08-07
standpunkt.helsana.ch 6 2026-03-23 2026-09-19
hplus-ent.helsana.ch 1 2026-06-04 2026-06-04
www.hplus-ent.helsana.ch 1 2026-06-04 2026-06-04
consent.helsana.ch 1 2025-10-21 2025-10-21
hplus-int.helsana.ch 1 2026-06-04 2026-06-04
www.hplus-int.helsana.ch 1 2026-06-04 2026-06-04
report.helsana.ch 6 2026-01-19 2026-09-19
test.helsana.ch 1 2026-01-06 2026-01-06
b2b-test.helsana.ch 3 2026-09-28 2026-09-28
login-test.helsana.ch 10 2026-05-26 2026-09-23
updatetest.helsana.ch 1 2026-01-08 2026-01-08
mailhost.helsana.ch 1 2026-05-05 2026-05-05
login-dev.helsana.ch 10 2026-05-26 2026-09-22
www.helsana.ch 3 2026-06-12 2026-07-10
survey.helsana.ch 1 2026-01-14 2026-01-14
backy.helsana.ch 2 2026-09-25 2026-09-25
125-gallery.helsana.ch 5 2026-05-25 2026-09-18
history.helsana.ch 3 2026-08-13 2026-10-12

Programmatic access: API GET /v1/hosts/helsana.ch (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/helsana.ch.