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.

34 hosts · 437 ms

HostCertsFirst seenLast seenDNS
unifininc.com 6 2025-12-24 2026-09-10 ok
*.unifininc.com 1 2025-12-24 2025-12-24 —
www.outreach1.unifininc.com 5 2026-05-06 2026-08-29 ok
url4572.notice.unifininc.com 2 2026-09-11 2026-09-11 ok
url774.service.unifininc.com 2 2026-09-10 2026-09-10 ok
www.engage.unifininc.com 5 2026-05-06 2026-08-29 ok
url1597.flexible.unifininc.com 2 2026-09-10 2026-09-10 ok
www.response.unifininc.com 1 2026-08-22 2026-08-22 ok
url3994.resolve.unifininc.com 2 2026-09-11 2026-09-11 ok
url1876.regarding.unifininc.com 2 2026-09-10 2026-09-10 ok
www.outreach.unifininc.com 5 2026-05-06 2026-08-29 ok
cmail1.unifininc.com.unifininc.com 5 2026-06-06 2026-09-19 ok
www.go.unifininc.com 5 2026-05-21 2026-09-09 ok
www.hello.unifininc.com 1 2026-08-22 2026-08-22 ok
help.unifininc.com 5 2026-05-05 2026-08-28 ok
url5006.help.unifininc.com 2 2026-09-10 2026-09-10 ok
url3751.accounthelp.unifininc.com 2 2026-09-10 2026-09-10 ok
s.unifininc.com 2 2026-02-22 2026-06-15 ok
www.cares.unifininc.com 5 2026-05-06 2026-08-29 ok
utools.unifininc.com 5 2026-05-23 2026-09-05 ok
url4421.options.unifininc.com 2 2026-09-11 2026-09-11 ok
url1514.access.unifininc.com 2 2026-09-11 2026-09-11 ok
status.unifininc.com 5 2026-05-20 2026-09-07 ok
t.unifininc.com 2 2026-02-21 2026-06-14 ok
www.contact.unifininc.com 5 2026-05-06 2026-08-29 ok
www.connect.unifininc.com 2 2026-08-22 2026-08-22 ok
url2346.direct.unifininc.com 2 2026-09-11 2026-09-11 ok
asset.unifininc.com 5 2026-05-02 2026-08-25 ok
www.account.unifininc.com 3 2026-07-25 2026-09-13 ok
support.unifininc.com 4 2026-05-05 2026-07-04 nodata
www.support.unifininc.com 3 2026-07-25 2026-09-13 ok
w.unifininc.com 3 2025-06-15 2025-10-24 nodata
www.unifininc.com 5 2026-06-01 2026-09-14 ok
www.notify.unifininc.com 3 2026-07-25 2026-09-13 ok

Programmatic access, with DNS A records: API GET /v1/hosts/unifininc.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/unifininc.com.