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.

53 hosts · 388 ms

HostCertsFirst seenLast seenDNS
unode50.com 34 2025-10-31 2026-09-14 ok
*.unode50.com 26 2025-10-31 2026-09-14 —
sfstaging01.unode50.com 2 2026-04-22 2026-04-22 ok
sfdevelopment01.unode50.com 7 2026-04-22 2026-06-03 ok
pre-m2.unode50.com 12 2026-04-10 2026-10-04 ok
icg3.unode50.com 2 2026-04-10 2026-04-10 nxdomain
media.unode50.com 13 2026-04-10 2026-10-04 ok
b2b.unode50.com 12 2026-04-10 2026-10-04 ok
static.unode50.com 13 2026-04-10 2026-10-04 ok
ipad.unode50.com 17 2026-04-10 2026-10-05 ok
world.unode50.com 12 2026-04-10 2026-10-04 ok
pre.unode50.com 13 2026-04-10 2026-10-04 ok
drive.unode50.com 17 2026-04-10 2026-10-05 ok
fnf.unode50.com 2 2026-05-11 2026-05-11 ok
sfstaging01fnf.unode50.com 9 2026-04-10 2026-06-08 ok
sfdevelopment01fnf.unode50.com 5 2026-04-10 2026-06-08 ok
sf.unode50.com 11 2026-04-10 2026-06-08 ok
autoconfig.unode50.com 15 2026-04-10 2026-10-04 ok
marketing.unode50.com 15 2026-04-10 2026-10-04 ok
blog.unode50.com 16 2026-04-10 2026-10-05 ok
autoconfig.blog.unode50.com 13 2026-04-10 2026-10-04 ok
feedback.unode50.com 19 2026-04-10 2026-10-04 ok
uk.unode50.com 16 2026-04-10 2026-10-05 ok
mail.unode50.com 13 2026-04-10 2026-10-04 ok
control.unode50.com 15 2026-04-10 2026-10-04 ok
support.en.unode50.com 10 2026-06-06 2026-10-02 ok
adyen.unode50.com 4 2026-04-10 2026-04-10 nxdomain
skin.unode50.com 16 2026-04-10 2026-10-05 ok
confirmation.unode50.com 11 2026-04-10 2026-10-04 ok
magento.unode50.com 11 2026-04-10 2026-10-05 ok
ftp.unode50.com 10 2026-04-10 2026-06-08 ok
calendar.unode50.com 10 2026-04-10 2026-10-04 ok
narvar.unode50.com 4 2026-04-10 2026-04-10 nxdomain
newsletter.unode50.com 18 2026-04-10 2026-10-06 ok
support.es.unode50.com 12 2026-04-16 2026-08-12 ok
sites.unode50.com 15 2026-04-10 2026-10-04 ok
fs.unode50.com 15 2026-04-10 2026-10-05 ok
groups.unode50.com 17 2026-04-10 2026-10-05 ok
press.unode50.com 13 2026-04-10 2026-10-04 ok
us.unode50.com 12 2026-04-10 2026-10-04 ok
www.us.unode50.com 8 2026-04-10 2026-10-04 ok
cloud.news.unode50.com 2 2025-08-06 2026-07-25 ok
image.news.unode50.com 3 2026-01-21 2026-09-06 ok
click.news.unode50.com 2 2025-08-06 2026-07-29 ok
view.news.unode50.com 2 2025-08-06 2026-07-24 ok
development.unode50.com 6 2026-04-10 2026-06-03 ok
pt.unode50.com 16 2026-04-10 2026-10-05 ok
support.unode50.com 10 2026-04-10 2026-10-04 ok
servicedesk.support.unode50.com 12 2026-04-10 2026-10-04 ok
dev.unode50.com 17 2026-04-10 2026-10-04 ok
new.unode50.com 17 2026-04-10 2026-10-04 ok
www.unode50.com 8 2026-05-11 2026-09-13 ok
apex.unode50.com 9 2026-04-10 2026-06-08 ok

Programmatic access, with DNS A records: API GET /v1/hosts/unode50.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/unode50.com.