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.

55 hosts · 272 ms

HostCertsFirst seenLast seen
nj.com 15 2025-09-17 2026-09-25
*.nj.com 13 2025-08-03 2026-10-07
x054.nj.com 1 2026-01-11 2026-01-11
x778.nj.com 1 2026-02-05 2026-02-05
reader.jb.nj.com 2 2025-10-08 2026-09-25
mosaic.nj.com 7 2026-04-28 2026-10-08
www-uat.mosaic.nj.com 7 2026-04-28 2026-10-08
www-sandbox.mosaic.nj.com 7 2026-04-28 2026-10-08
ead.nj.com 2 2026-03-01 2026-07-17
placead.nj.com 2 2025-07-25 2026-07-22
subscribe.nj.com 15 2026-04-27 2026-10-06
fieldturf.nj.com 21 2026-05-16 2026-09-21
bedsharing.nj.com 15 2026-05-16 2026-09-15
hiring.nj.com 5 2026-05-20 2026-10-03
death.nj.com 3 2026-05-16 2026-09-13
i.nj.com 8 2026-05-01 2026-09-18
reader.jj.nj.com 4 2026-04-17 2026-08-14
reader.sj.nj.com 2 2025-09-28 2026-09-15
link.nj.com 5 2026-06-03 2026-10-01
l.nj.com 5 2026-04-15 2026-10-10
reader.sl.nj.com 2 2025-09-21 2026-09-08
specialsection.nj.com 4 2026-06-12 2026-06-12
advancelocalseo.nj.com 6 2026-05-07 2026-07-14
app.nj.com 1 2026-05-28 2026-05-28
yankeesapp.nj.com 3 2026-06-01 2026-06-01
njdevilsapp.nj.com 1 2026-06-08 2026-06-08
giantsapp.nj.com 1 2026-06-01 2026-06-01
jobs.nj.com 11 2026-04-26 2026-10-05
topics.nj.com 11 2026-05-01 2026-10-07
classifieds.nj.com 3 2025-08-01 2026-08-20
puzzles.nj.com 5 2026-05-13 2026-09-10
foreclosures.nj.com 1 2026-01-10 2026-01-10
archives.nj.com 3 2025-09-12 2026-08-13
autos.nj.com 3 2026-05-09 2026-09-21
partnerships.nj.com 16 2026-04-16 2026-10-10
circulars.nj.com 5 2026-05-11 2026-09-10
obits.nj.com 10 2026-05-06 2026-09-01
mobileobits.nj.com 8 2026-05-07 2026-09-02
events.nj.com 5 2026-05-11 2026-09-08
highschoolsports.nj.com 2 2025-08-29 2026-09-10
www.highschoolsports.nj.com 1 2025-08-29 2025-08-29
i-uat.nj.com 5 2026-05-01 2026-09-18
topics-uat.nj.com 11 2026-05-01 2026-10-07
hs-uat.nj.com 4 2026-04-18 2026-08-16
connect-uat.nj.com 11 2026-05-01 2026-10-07
www-uat.nj.com 11 2026-05-01 2026-10-07
connect.nj.com 11 2026-05-01 2026-10-07
archive-redirect.nj.com 2 2025-07-02 2026-06-02
*.archive-redirect.nj.com 2 2025-07-02 2026-06-02
myaccount.nj.com 15 2026-04-27 2026-10-06
reader.tt.nj.com 2 2025-09-28 2026-09-15
autos-dev.nj.com 2 2026-05-09 2026-09-21
www.nj.com 11 2026-05-01 2026-10-07
auth0-sandbox.nj.com 10 2026-04-30 2026-08-26
www-sandbox.nj.com 5 2026-05-01 2026-09-18

Programmatic access: API GET /v1/hosts/nj.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/nj.com.