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.

55 hosts · 416 ms

HostCertsFirst seenLast seenDNS
click-sec.com 3 2025-12-04 2026-04-22 ok
*.click-sec.com 1 2026-04-22 2026-04-22 —
stg-deri2.click-sec.com 1 2025-12-02 2025-12-02 ok
stg-sec-tool2.click-sec.com 1 2025-12-02 2025-12-02 ok
stg-sec-sso2.click-sec.com 1 2025-12-02 2025-12-02 ok
stg-sec-tool3.click-sec.com 1 2025-12-02 2025-12-02 ok
stg-sec-sso3.click-sec.com 1 2025-12-02 2025-12-02 ok
stg-sec-tool4.click-sec.com 1 2025-12-02 2025-12-02 ok
stg-sec-sso4.click-sec.com 1 2025-12-02 2025-12-02 ok
stg-sec-tool5.click-sec.com 1 2025-12-02 2025-12-02 ok
stg-sec-sso5.click-sec.com 1 2025-12-02 2025-12-02 ok
stg-sec-tool6.click-sec.com 1 2025-12-02 2025-12-02 ok
stg-sec-sso6.click-sec.com 1 2025-12-02 2025-12-02 ok
api-kgb.click-sec.com 1 2025-12-04 2025-12-04 ok
tb.click-sec.com 1 2025-12-04 2025-12-04 ok
stg-tb.click-sec.com 1 2025-12-02 2025-12-02 ok
static.click-sec.com 1 2025-12-04 2025-12-04 ok
stg-static.click-sec.com 1 2025-12-02 2025-12-02 ok
ekyc.click-sec.com 1 2025-11-06 2025-11-06 ok
stg-ekyc.click-sec.com 3 2025-07-01 2026-07-03 ok
od.click-sec.com 1 2025-12-04 2025-12-04 ok
stg-od.click-sec.com 1 2025-12-02 2025-12-02 ok
maintenance.click-sec.com 1 2025-12-04 2025-12-04 ok
stg.click-sec.com 2 2025-12-02 2025-12-04 ok
search.click-sec.com 2 2025-12-04 2025-12-04 ok
deri.click-sec.com 1 2025-12-04 2025-12-04 ok
stg-deri.click-sec.com 1 2025-12-02 2025-12-02 ok
mkti.click-sec.com 4 2025-07-09 2026-06-09 ok
*.mkti.click-sec.com 4 2025-07-09 2026-06-09 —
manual.click-sec.com 2 2026-03-24 2026-08-24 ok
sec-tool.click-sec.com 1 2025-12-04 2025-12-04 ok
stg-sec-tool.click-sec.com 1 2025-12-02 2025-12-02 ok
cfd-stream.click-sec.com 1 2025-12-04 2025-12-04 ok
stg-cfd-stream.click-sec.com 1 2025-12-02 2025-12-02 ok
demo-cfd-stream.click-sec.com 1 2025-12-04 2025-12-04 ok
stg-demo-cfd-stream.click-sec.com 1 2025-12-02 2025-12-02 ok
demo.click-sec.com 1 2025-12-04 2025-12-04 ok
stg-demo.click-sec.com 1 2025-12-02 2025-12-02 ok
fx-demo.click-sec.com 1 2025-12-04 2025-12-04 ok
stg-fx-demo.click-sec.com 1 2025-12-02 2025-12-02 ok
sec-sso.click-sec.com 1 2025-12-04 2025-12-04 ok
stg-sec-sso.click-sec.com 1 2025-12-04 2025-12-04 ok
faq.click-sec.com 1 2025-12-04 2025-12-04 ok
fxr.click-sec.com 1 2025-12-04 2025-12-04 ok
stg-fxr.click-sec.com 1 2025-12-04 2025-12-04 ok
demo-fxr.click-sec.com 1 2025-12-04 2025-12-04 ok
stg-demo-fxr.click-sec.com 1 2025-12-04 2025-12-04 ok
account.click-sec.com 1 2025-11-06 2025-11-06 ok
stg-account.click-sec.com 3 2025-07-01 2026-07-03 ok
kabu.click-sec.com 1 2025-12-04 2025-12-04 ok
stg-kabu.click-sec.com 1 2025-12-02 2025-12-02 ok
www.click-sec.com 2 2025-12-04 2025-12-04 ok
stg-www.click-sec.com 2 2025-12-02 2025-12-04 ok
fx.click-sec.com 1 2025-12-04 2025-12-04 ok
stg-fx.click-sec.com 1 2025-12-02 2025-12-02 ok

Programmatic access, with DNS A records: API GET /v1/hosts/click-sec.com (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/click-sec.com.