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.

59 hosts · 191 ms

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HostCertsFirst seenLast seen
hxs.at 6 2026-05-06 2026-10-15
*.hxs.at 6 2026-05-06 2026-10-15
dns00.hxs.at 4 2026-06-05 2026-10-04
web01.hxs.at 5 2026-04-25 2026-08-23
dns01.hxs.at 4 2026-06-06 2026-10-04
web02.hxs.at 5 2026-05-17 2026-09-14
dns02.hxs.at 4 2026-06-06 2026-10-05
drop2.hxs.at 4 2026-01-22 2026-06-15
linestat2.hxs.at 3 2026-07-15 2026-09-13
web03.hxs.at 4 2026-04-21 2026-08-19
dns04.hxs.at 4 2026-06-06 2026-10-04
dns05.hxs.at 4 2026-06-06 2026-10-05
intra.hxs.at 5 2026-04-26 2026-08-24
vcsa.hxs.at 2 2026-05-26 2026-10-15
www.vcsa.hxs.at 2 2026-05-26 2026-10-15
rc.hxs.at 6 2026-05-05 2026-10-03
s1-dashboard.hxs.at 2 2026-07-03 2026-07-03
vpn.office.hxs.at 6 2025-08-13 2026-10-15
www.vpn.office.hxs.at 6 2025-08-13 2026-10-15
fw.office.hxs.at 6 2025-08-13 2026-10-15
acme.hxs.at 5 2026-06-05 2026-09-29
lineuptime.hxs.at 4 2026-06-20 2026-06-20
share.hxs.at 4 2026-06-11 2026-10-10
ai.hxs.at 3 2026-01-09 2026-08-05
domainadmin.hxs.at 4 2026-06-11 2026-10-09
automation.hxs.at 1 2026-01-15 2026-01-15
lineinfo.hxs.at 2 2026-07-12 2026-07-12
oeko.hxs.at 4 2026-06-07 2026-10-05
gpo.hxs.at 5 2026-04-24 2026-08-22
wo.hxs.at 5 2026-05-18 2026-09-15
mcp.hxs.at 3 2026-07-31 2026-09-30
ip.hxs.at 5 2026-04-28 2026-08-26
4.ip.hxs.at 2 2026-07-27 2026-07-27
6.ip.hxs.at 2 2026-07-27 2026-07-27
four.ip.hxs.at 2 2026-07-27 2026-07-27
six.ip.hxs.at 2 2026-07-27 2026-07-27
drop.hxs.at 4 2026-05-21 2026-06-16
cipp.hxs.at 2 2026-03-02 2026-07-19
msp.hxs.at 1 2026-05-11 2026-05-11
www.msp.hxs.at 1 2026-05-11 2026-05-11
cleaner.hxs.at 5 2026-04-30 2026-08-28
deb-updater.hxs.at 3 2026-07-17 2026-09-16
center.hxs.at 2 2026-08-11 2026-08-31
db.center.hxs.at 1 2026-09-23 2026-09-23
admin.center.hxs.at 1 2026-08-31 2026-08-31
stats.center.hxs.at 1 2026-09-25 2026-09-25
domains.hxs.at 5 2026-05-24 2026-09-21
exclusions.hxs.at 5 2026-05-30 2026-09-27
pass.hxs.at 6 2025-07-24 2026-10-14
status.hxs.at 2 2026-01-31 2026-01-31
flows.hxs.at 1 2026-09-28 2026-09-28
keys.hxs.at 1 2026-06-16 2026-06-16
linestat.hxs.at 7 2026-06-20 2026-09-11
support.hxs.at 7 2025-08-13 2026-10-15
www.support.hxs.at 7 2025-08-13 2026-10-15
hgm-biz-dev.hxs.at 2 2026-07-09 2026-07-09
new.hxs.at 5 2026-05-27 2026-09-24
appterix.hxs.at 1 2026-06-17 2026-06-17
godaddy.hxs.at 7 2026-01-20 2026-10-15

Programmatic access: API GET /v1/hosts/hxs.at (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/hxs.at.