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.

36 hosts · 329 ms

HostCertsFirst seenLast seenDNS
mfrm.com 4 2025-10-15 2026-08-12 ok
*.mfrm.com 1 2025-10-15 2025-10-15 —
dtcia.mfrm.com 1 2026-05-30 2026-05-30 nxdomain
agspringcloudprod.mfrm.com 1 2026-06-23 2026-06-23 ok
password.mfrm.com 2 2026-02-13 2026-07-07 ok
papawsmule.mfrm.com 1 2025-08-08 2025-08-08 nodata
*.test.azure.mfrm.com 1 2025-09-16 2025-09-16 —
test.test.azure.mfrm.com 1 2025-09-16 2025-09-16 nxdomain
pulse.mfrm.com 5 2026-06-01 2026-10-01 ok
expertai.mfrm.com 12 2026-05-22 2026-09-17 ok
uat-expertai.mfrm.com 8 2026-05-20 2026-09-15 ok
dev-expertai.mfrm.com 17 2026-05-18 2026-09-14 ok
pki.mfrm.com 4 2026-05-27 2026-08-24 ok
go.mfrm.com 3 2026-05-13 2026-09-12 ok
omnifinder.mfrm.com 11 2026-05-22 2026-09-17 ok
qa-omnifinder.mfrm.com 9 2026-05-20 2026-09-15 ok
uat-omnifinder.mfrm.com 6 2026-05-20 2026-09-15 ok
dev-omnifinder.mfrm.com 15 2026-05-18 2026-09-13 ok
ms.mfrm.com 4 2025-09-17 2026-09-16 nodata
*.ms.mfrm.com 4 2025-09-17 2026-09-16 —
*.sapi.ms.mfrm.com 4 2025-09-17 2026-09-16 —
virtualcampus.mfrm.com 3 2026-04-10 2026-08-10 ok
status.mfrm.com 12 2026-04-14 2026-08-11 ok
surveys.mfrm.com 3 2026-04-10 2026-08-10 ok
tableau-uat.mfrm.com 1 2025-08-05 2025-08-05 ok
mfcl.uat.mfrm.com 20 2026-02-15 2026-08-14 ok
smart.mfrm.com 5 2026-05-10 2026-09-07 ok
test.mfrm.com 1 2025-08-08 2025-08-08 nxdomain
thebedpost.mfrm.com 3 2026-04-10 2026-08-10 ok
mfcl.dev.mfrm.com 20 2026-02-02 2026-08-13 ok
tv.mfrm.com 3 2026-04-10 2026-08-10 ok
www.mfrm.com 3 2026-04-10 2026-08-11 ok
citrix.mfrm.com 3 2026-05-14 2026-09-13 ok
ms.sandbox.mfrm.com 29 2025-08-22 2026-09-29 nodata
*.ms.sandbox.mfrm.com 29 2025-08-22 2026-09-29 —
*.sapi.ms.sandbox.mfrm.com 29 2025-08-22 2026-09-29 —

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