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.

100 hosts (first page) · 571 ms

HostCertsFirst seenLast seenDNS
festo.com 6 2025-08-22 2026-09-16 ok
*.festo.com 4 2025-11-21 2026-03-10 —
100.festo.com 7 2026-04-13 2026-06-18 ok
www.100.festo.com 5 2026-04-19 2026-06-25 ok
gw1.festo.com 2 2025-08-22 2026-07-20 ok
gw2.festo.com 2 2025-08-22 2026-07-20 ok
www2.festo.com 6 2026-06-17 2026-09-11 ok
images.www2.festo.com 5 2026-05-17 2026-09-11 ok
apps.www2.festo.com 6 2026-06-17 2026-09-11 ok
gw3.festo.com 2 2025-07-14 2026-07-16 ok
gw4.festo.com 2 2025-07-14 2026-07-16 ok
gw5.festo.com 2 2026-03-30 2026-09-17 ok
gw6.festo.com 2 2026-03-30 2026-09-17 ok
mobile-vpn-asia.festo.com 1 2026-04-30 2026-04-30 ok
qms-asia.festo.com 1 2025-12-03 2025-12-03 ok
mobile-vpn-china.festo.com 1 2025-12-15 2025-12-15 ok
stagewebappservices-d0195e2fb9ae2d1b.festo.com 1 2025-11-29 2025-11-29 ok
pimdatahub.festo.com 4 2026-01-25 2026-09-11 ok
testpimdatahub.festo.com 4 2026-01-15 2026-08-30 ok
devpimdatahub.festo.com 4 2026-01-25 2026-09-11 ok
sandboxpimdatahub.festo.com 4 2026-01-25 2026-09-10 ok
redirects-c.festo.com 2 2026-03-11 2026-06-25 ok
ec.festo.com 2 2026-03-01 2026-06-26 ok
dev1.ec.festo.com 2 2026-02-27 2026-06-21 ok
dev2.ec.festo.com 2 2026-03-03 2026-06-26 ok
test.ec.festo.com 2 2026-02-27 2026-06-20 ok
dev.ec.festo.com 2 2026-02-27 2026-06-20 ok
music.festo.com 5 2026-05-24 2026-09-27 ok
didactic.festo.com 5 2026-05-24 2026-09-27 ok
prodwebappservices-d34716876364a02d.festo.com 1 2025-11-29 2025-11-29 nodata
exchangehybrid.festo.com 2 2025-08-22 2025-12-12 ok
backend-energysavingservices-prod.festo.com 2 2026-01-27 2026-06-12 ok
smartenance.festo.com 5 2026-03-25 2026-09-16 ok
signup.smartenance.festo.com 2 2026-03-25 2026-09-09 ok
www.smartenance.festo.com 3 2026-03-25 2026-09-16 ok
authstage.festo.com 1 2026-05-04 2026-05-04 ok
coding-challenge.festo.com 1 2026-01-27 2026-01-27 ok
*.coding-challenge.festo.com 1 2026-01-27 2026-01-27 —
auth.coding-challenge.festo.com 2 2025-09-08 2026-08-09 ok
*.dev.coding-challenge.festo.com 1 2026-01-29 2026-01-29 —
mobile-vpn-europe.festo.com 4 2026-03-16 2026-09-02 ok
pdsc-pulse.festo.com 2 2026-06-09 2026-10-02 ok
dev-pdsc-pulse.festo.com 2 2026-06-09 2026-10-02 ok
preboarding.festo.com 2 2026-06-25 2026-09-30 ok
backend-energysavingservices-training.festo.com 2 2026-02-18 2026-06-29 ok
energysavingservices.training.festo.com 5 2026-04-30 2026-09-17 ok
catalog.festo.com 5 2026-05-24 2026-09-27 ok
fluidsim-lxstg.festo.com 2 2026-02-21 2026-07-12 ok
vuvg.festo.com 5 2026-05-24 2026-09-27 ok
www.vuvg.festo.com 5 2026-05-24 2026-09-27 ok
auth.festo.com 1 2026-05-04 2026-05-04 ok
devauth.festo.com 1 2025-12-11 2025-12-11 ok
redirects-i.festo.com 3 2026-03-11 2026-07-06 ok
api.festo.com 6 2025-07-31 2026-10-02 ok
prod.api.festo.com 1 2026-10-02 2026-10-02 nodata
test.api.festo.com 4 2025-12-08 2026-09-16 ok
dev.api.festo.com 6 2025-12-08 2026-09-15 ok
sandbox.api.festo.com 4 2026-05-21 2026-09-15 ok
fiori.festo.com 2 2026-03-11 2026-03-13 ok
musik.festo.com 5 2026-05-24 2026-09-27 ok
brandportal.festo.com 2 2026-05-27 2026-09-23 ok
mobil.festo.com 5 2026-05-24 2026-09-27 ok
mobile-vpn-brazil.festo.com 1 2025-11-18 2025-11-18 ok
m.festo.com 5 2026-05-24 2026-09-27 ok
bmcsim.festo.com 3 2026-02-21 2026-10-05 ok
fluidsim.festo.com 2 2025-09-09 2026-09-21 ok
token.festo.com 2 2026-03-10 2026-08-10 ok
io.festo.com 2 2026-02-23 2026-07-11 ok
*.io.festo.com 2 2026-02-23 2026-07-11 —
api.io.festo.com 4 2026-04-14 2026-09-01 ok
redirects-p.festo.com 3 2026-03-12 2026-07-05 ok
ftp.festo.com 1 2026-06-02 2026-06-02 ok
mobile-vpn-china-backup.festo.com 1 2026-05-28 2026-05-28 ok
industriemeister.festo.com 5 2026-04-26 2026-08-30 ok
autodiscover.festo.com 2 2025-08-22 2025-12-12 ok
srmkr.festo.com 2 2025-10-10 2026-09-09 ok
aas.festo.com 2 2025-09-11 2026-08-12 ok
mobile-vpn-americas.festo.com 1 2026-04-30 2026-04-30 ok
qms-americas.festo.com 1 2026-05-26 2026-05-26 ok
jobs.festo.com 1 2026-03-09 2026-03-09 ok
dashboards.festo.com 5 2026-05-24 2026-09-27 ok
mechatronicmotionsolutions.festo.com 5 2026-05-24 2026-09-27 ok
www.mechatronicmotionsolutions.festo.com 5 2026-05-24 2026-09-27 ok
developers.festo.com 6 2025-07-31 2026-10-02 ok
ess.festo.com 5 2026-05-24 2026-09-27 ok
festoguestaccess.festo.com 2 2026-03-23 2026-09-25 ok
press.festo.com 2 2025-10-22 2026-09-23 ok
redirects.festo.com 2 2026-03-05 2026-06-29 nxdomain
campus.festo.com 2 2025-06-20 2026-07-02 ok
testcampus.festo.com 2 2025-06-20 2026-07-02 ok
t.festo.com 6 2026-06-17 2026-09-11 ok
labvolt.festo.com 11 2025-11-15 2026-08-30 ok
www.labvolt.festo.com 11 2025-11-15 2026-08-30 ok
virtual-assistant.festo.com 4 2025-11-09 2026-09-11 ok
*.virtual-assistant.festo.com 4 2025-11-09 2026-09-11 —
ems-agent.festo.com 1 2026-02-25 2026-02-25 nxdomain
consent.festo.com 3 2026-04-28 2026-09-28 ok
webdepot.festo.com 1 2026-01-15 2026-01-15 ok
cloud-ip-report.festo.com 1 2026-06-15 2026-06-15 nodata
fluidsim-test.festo.com 2 2026-02-08 2026-07-03 ok

Showing the first 100 hostnames — sign in with GitHub or Google to page the full list, or use the API with an API key: GET /v1/hosts/festo.com.

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/festo.com.