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) · 393 ms

HostCertsFirst seenLast seenDNS
cpp.cz 10 2026-02-16 2026-08-16 ok
*.cpp.cz 1 2026-02-16 2026-02-16 —
edge1.cpp.cz 3 2025-08-05 2026-08-28 ok
edge2.cpp.cz 3 2025-08-05 2026-08-28 ok
mhubc.cpp.cz 4 2026-02-22 2026-10-06 ok
prod.cpp.cz 1 2025-08-13 2025-08-13 nodata
*.prod.cpp.cz 1 2025-08-13 2025-08-13 —
com-dea-facade-public-be.prod.cpp.cz 2 2026-09-08 2026-09-08 ok
calculators-cppvozidla-fe.prod.cpp.cz 1 2026-09-08 2026-09-08 nodata
partner-healthdata-fe.prod.cpp.cz 5 2026-09-08 2026-09-08 ok
calculators-fzd-fe.prod.cpp.cz 1 2026-08-13 2026-08-13 ok
landing-page-fe.prod.cpp.cz 4 2026-09-08 2026-09-08 ok
claims-recourse-fe.prod.cpp.cz 2 2026-09-08 2026-09-08 ok
bpm-reporting-fe.prod.cpp.cz 1 2026-09-08 2026-09-08 ok
calculators-cppcestpoj-fe.prod.cpp.cz 3 2026-06-18 2026-08-15 ok
calculators-hafan-fe.prod.cpp.cz 3 2026-06-29 2026-08-26 ok
susp-user-delegation-fe.prod.cpp.cz 5 2026-09-08 2026-09-08 ok
knz-user-delegation-fe.prod.cpp.cz 3 2026-09-08 2026-09-08 ok
partner-fe.prod.cpp.cz 4 2026-09-08 2026-09-08 ok
commissions-fe.prod.cpp.cz 3 2026-09-08 2026-09-08 ok
bpm-tasklist-fe.prod.cpp.cz 1 2026-09-08 2026-09-08 ok
calculators-zamex-fe.prod.cpp.cz 3 2026-06-29 2026-08-26 ok
calculators-domex-fe.prod.cpp.cz 1 2026-09-08 2026-09-08 ok
calculators-bytex-fe.prod.cpp.cz 3 2026-06-19 2026-08-16 ok
policy-fe.prod.cpp.cz 5 2026-09-08 2026-09-08 ok
knz-opportunity-fe.prod.cpp.cz 3 2026-09-08 2026-09-08 ok
neuron-apm.prod.cpp.cz 3 2026-07-27 2026-09-23 ok
neuron-forms.prod.cpp.cz 4 2026-09-08 2026-09-08 ok
knz-ziv-ws.prod.cpp.cz 1 2026-09-10 2026-09-10 ok
knz-ziv.prod.cpp.cz 1 2026-09-10 2026-09-10 ok
apmgateway.prod.cpp.cz 5 2026-09-08 2026-09-08 ok
makl-portal-dotaz.prod.cpp.cz 1 2026-09-10 2026-09-10 ok
edge.cpp.cz 3 2025-08-05 2026-08-28 nxdomain
susp-docutype.cpp.cz 4 2026-06-10 2026-10-05 ok
ruian-search-mssql.cpp.cz 1 2026-09-10 2026-09-10 ok
mhubm.cpp.cz 2 2026-03-10 2026-06-29 ok
mta-sts.form.cpp.cz 3 2026-05-12 2026-08-03 ok
i.info.cpp.cz 3 2026-01-23 2026-01-25 ok
cdn.targito.cpp.cz 2 2025-07-23 2026-06-23 ok
t.targito.cpp.cz 7 2026-03-05 2026-09-11 ok
cmp.cpp.cz 3 2026-03-27 2026-08-06 ok
mhubc-t.cpp.cz 2 2026-02-22 2026-06-15 ok
cmp-t.cpp.cz 3 2026-03-27 2026-08-06 ok
susp-ws-uat.cpp.cz 3 2026-07-13 2026-09-09 ok
*.uat.cpp.cz 1 2025-07-23 2025-07-23 —
com-dea-facade-public-be.uat.cpp.cz 3 2026-06-25 2026-08-22 ok
susp-pruvodce.uat.cpp.cz 7 2026-06-22 2026-08-20 ok
calculators-cppvozidla-fe.uat.cpp.cz 1 2026-09-08 2026-09-08 nxdomain
edoklad-fe.uat.cpp.cz 3 2026-06-25 2026-08-22 ok
pruvodce-fe.uat.cpp.cz 5 2026-06-25 2026-08-22 ok
calculators-cppcestpoj-fe.uat.cpp.cz 4 2026-06-22 2026-08-20 ok
susp-user-delegation-fe.uat.cpp.cz 3 2026-06-25 2026-08-22 ok
knz-user-delegation-fe.uat.cpp.cz 4 2026-06-25 2026-08-22 ok
partner-fe.uat.cpp.cz 5 2026-06-25 2026-08-22 ok
commissions-fe.uat.cpp.cz 3 2026-06-25 2026-08-22 ok
bpm-tasklist-fe.uat.cpp.cz 3 2026-06-25 2026-08-22 ok
surr-mf-host-fe.uat.cpp.cz 5 2026-06-25 2026-08-22 ok
calculators-domex-fe.uat.cpp.cz 3 2026-06-25 2026-08-22 ok
calculators-bytex-fe.uat.cpp.cz 3 2026-06-25 2026-08-22 ok
policy-fe.uat.cpp.cz 5 2026-06-25 2026-08-22 ok
knz-opportunity-fe.uat.cpp.cz 4 2026-06-25 2026-08-22 ok
susp-landing-page.uat.cpp.cz 3 2026-06-25 2026-08-22 ok
susp-homepage.uat.cpp.cz 2 2026-10-02 2026-10-02 ok
moje.uat.cpp.cz 4 2026-06-25 2026-08-22 ok
susp-docutype.uat.cpp.cz 4 2026-06-10 2026-10-05 ok
susp-ipo.uat.cpp.cz 3 2026-06-25 2026-08-22 ok
susp-calendar-exporter.uat.cpp.cz 5 2026-06-25 2026-08-22 ok
neuron-forms.uat.cpp.cz 5 2026-06-25 2026-08-22 ok
apmgateway.uat.cpp.cz 3 2026-06-22 2026-08-19 ok
*.sit.cpp.cz 1 2025-07-23 2025-07-23 —
kalkulacka.sit.cpp.cz 3 2026-06-25 2026-08-22 ok
nop-sprava.sit.cpp.cz 5 2026-06-25 2026-08-22 ok
url-shortener-web.sit.cpp.cz 3 2026-06-25 2026-08-22 ok
vdp-download.sit.cpp.cz 3 2026-06-25 2026-08-22 ok
upload.sit.cpp.cz 3 2026-06-25 2026-08-22 ok
com-dea-facade-public-be.sit.cpp.cz 3 2026-06-25 2026-08-22 ok
susp-pruvodce.sit.cpp.cz 6 2026-06-22 2026-08-19 ok
febe-service.sit.cpp.cz 3 2026-06-25 2026-08-22 ok
calculators-cppvozidla-fe.sit.cpp.cz 1 2026-09-08 2026-09-08 nxdomain
edoklad-fe.sit.cpp.cz 3 2026-06-25 2026-08-22 ok
pruvodce-fe.sit.cpp.cz 5 2026-06-25 2026-08-22 ok
knz-ziskatel-homepage-fe.sit.cpp.cz 4 2026-06-25 2026-08-22 ok
knz-docutype-fe.sit.cpp.cz 4 2026-06-25 2026-08-22 ok
knz-client-search-fe.sit.cpp.cz 3 2026-06-25 2026-08-22 ok
calculators-cppcestpoj-fe.sit.cpp.cz 1 2026-08-11 2026-08-11 ok
calculators-hafan-fe.sit.cpp.cz 3 2026-06-25 2026-08-22 ok
susp-user-delegation-fe.sit.cpp.cz 3 2026-06-25 2026-08-22 ok
knz-user-delegation-fe.sit.cpp.cz 4 2026-06-25 2026-08-22 ok
partner-fe.sit.cpp.cz 5 2026-06-25 2026-08-22 ok
commissions-fe.sit.cpp.cz 3 2026-06-25 2026-08-22 ok
bpm-tasklist-fe.sit.cpp.cz 3 2026-06-25 2026-08-22 ok
surr-mf-host-fe.sit.cpp.cz 5 2026-06-25 2026-08-22 ok
knz-mf-host-fe.sit.cpp.cz 4 2026-06-25 2026-08-22 ok
calculators-zamex-fe.sit.cpp.cz 3 2026-06-25 2026-08-22 ok
calculators-domex-fe.sit.cpp.cz 3 2026-06-25 2026-08-22 ok
calculators-bytex-fe.sit.cpp.cz 3 2026-06-25 2026-08-22 ok
financial-transactions-payments-gateway-fe.sit.cpp.cz 3 2026-07-13 2026-09-09 ok
policy-fe.sit.cpp.cz 5 2026-06-25 2026-08-22 ok
knz-opportunity-fe.sit.cpp.cz 4 2026-06-25 2026-08-22 ok
susp-landing-page.sit.cpp.cz 3 2026-06-25 2026-08-22 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/cpp.cz.

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/cpp.cz.