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.

37 hosts · 694 ms

HostCertsFirst seenLast seenDNS
syracuse.com 14 2025-09-23 2026-09-25 ok
*.syracuse.com 14 2025-08-03 2026-09-25 —
p952.syracuse.com 1 2026-01-11 2026-01-11 ok
i082.syracuse.com 1 2026-02-05 2026-02-05 ok
ead.syracuse.com 2 2026-03-01 2026-07-17 ok
placead.syracuse.com 2 2025-07-25 2026-07-22 ok
subscribe.syracuse.com 16 2026-04-27 2026-10-06 ok
stage.syracuse.com 1 2025-12-10 2025-12-10 ok
hiring.syracuse.com 3 2026-06-16 2026-09-05 ok
i.syracuse.com 8 2026-05-01 2026-09-18 ok
link.syracuse.com 7 2026-06-03 2026-10-01 ok
l.syracuse.com 4 2026-04-15 2026-08-11 ok
reputation.syracuse.com 2 2026-06-21 2026-06-21 nodata
advancelocalseo.syracuse.com 6 2026-05-07 2026-07-14 ok
app.syracuse.com 1 2026-06-19 2026-06-19 ok
enews.member.syracuse.com 20 2026-04-26 2026-08-22 ok
ssponsor.syracuse.com 5 2026-05-08 2026-09-25 ok
jobs.syracuse.com 10 2026-04-26 2026-10-05 ok
topics.syracuse.com 10 2026-05-01 2026-10-07 ok
ezads.syracuse.com 1 2025-12-04 2025-12-04 ok
classifieds.syracuse.com 3 2025-08-01 2026-08-20 ok
foreclosures.syracuse.com 1 2026-01-11 2026-01-11 ok
archives.syracuse.com 2 2025-09-12 2026-08-13 ok
autos.syracuse.com 2 2026-05-12 2026-09-24 ok
reader.ps.syracuse.com 1 2025-10-30 2025-10-30 ok
obits.syracuse.com 8 2026-05-06 2026-09-01 ok
mobileobits.syracuse.com 8 2026-05-07 2026-09-02 ok
events.syracuse.com 5 2026-05-13 2026-09-10 ok
highschoolsports.syracuse.com 4 2026-04-16 2026-09-10 ok
i-uat.syracuse.com 5 2026-05-01 2026-09-18 ok
topics-uat.syracuse.com 10 2026-05-01 2026-10-07 ok
connect-uat.syracuse.com 10 2026-05-01 2026-10-07 ok
www-uat.syracuse.com 10 2026-05-01 2026-10-07 ok
connect.syracuse.com 10 2026-05-01 2026-10-07 ok
myaccount.syracuse.com 16 2026-04-27 2026-10-06 ok
www.syracuse.com 10 2026-05-01 2026-10-07 ok
www-sandbox.syracuse.com 5 2026-05-01 2026-09-18 ok

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