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) · 510 ms

HostCertsFirst seenLast seenDNS
telus.com 18 2025-06-26 2026-09-30 ok
*.telus.com 37 2025-06-26 2026-10-02 —
venafitest10.telus.com 2 2026-08-12 2026-08-12 nxdomain
performance-dashboard-1.telus.com 1 2026-06-11 2026-06-11 ok
monitoring-dashboard-1.telus.com 1 2026-06-11 2026-06-11 ok
visualisation-performance-1.telus.com 1 2026-06-11 2026-06-11 ok
event-monitoring-1.telus.com 1 2026-06-11 2026-06-11 ok
traffic-monitoring.143072-01.telus.com 1 2026-01-28 2026-01-28 ok
performance-reports.143072-01.telus.com 1 2026-01-28 2026-01-28 ok
performance-dashboards.134274-01.telus.com 1 2026-01-28 2026-01-28 ok
performance-reports.134274-01.telus.com 1 2026-01-28 2026-01-28 ok
performance-reports.145956-01.telus.com 1 2026-01-28 2026-01-28 ok
enterprise-st101.telus.com 2 2025-07-07 2026-06-22 ok
cil-st101.telus.com 2 2025-07-07 2026-06-22 ok
channels-st101.telus.com 2 2026-04-22 2026-10-05 nxdomain
mobility-st101.telus.com 1 2026-01-22 2026-01-22 ok
mlp-b01.telus.com 1 2025-10-27 2025-10-27 ok
cls-b01.telus.com 2 2025-10-18 2026-09-21 ok
mlp-h01.telus.com 1 2025-10-27 2025-10-27 ok
cls-h01.telus.com 3 2025-10-27 2026-09-21 ok
config.naas-itn01.telus.com 20 2025-11-07 2026-09-07 ok
siemclouddp01.telus.com 9 2025-10-30 2026-08-28 ok
lcd-gc-gens-itsm-pr01.telus.com 1 2025-10-30 2025-10-30 ok
lcd-gc-sso-pr01.telus.com 1 2025-12-04 2025-12-04 ok
lcd-gc-gcnet-kinetic-request-pr01.telus.com 1 2026-02-10 2026-02-10 ok
teamsso-kidc-its01.telus.com 1 2026-01-03 2026-01-03 ok
teamsso-qidc-its01.telus.com 1 2026-01-03 2026-01-03 ok
digitalsignature-its01.telus.com 1 2026-01-28 2026-01-28 ok
teamsso-its01.telus.com 1 2026-01-03 2026-01-03 ok
partnerauth-it01.telus.com 8 2026-04-16 2026-08-12 ok
vpop-isp-it01.telus.com 11 2026-04-11 2026-10-06 ok
channelsales-it01.telus.com 9 2026-05-31 2026-09-26 ok
nomadic911.telus.com 1 2025-10-26 2025-10-26 ok
on-ibcf-ng911.telus.com 3 2025-10-16 2026-10-06 ok
pq-ibcf-ng911.telus.com 3 2025-10-16 2026-10-06 ok
t-lb-t-ngcs-ng911.telus.com 1 2026-07-16 2026-07-16 nodata
cgylb4900sc5-t-lb-t-ngcs-ng911.telus.com 1 2026-07-16 2026-07-16 ok
t-osp-t-ngcs-ng911.telus.com 2 2026-07-17 2026-07-17 nodata
nwmrbc01sc90-t-osp-t-ngcs-ng911.telus.com 2 2026-07-17 2026-07-17 ok
edtnabxmsc90-t-osp-t-ngcs-ng911.telus.com 2 2026-07-17 2026-07-17 ok
toruonvp--01-ibcf-01.ng911.telus.com 3 2025-08-27 2026-08-17 nxdomain
toruonvp-01-ibcf-01.ng911.telus.com 3 2025-08-27 2026-08-17 nxdomain
t2slabibcf1.ng911.telus.com 1 2025-08-27 2025-08-27 nxdomain
nghp.edtnab.ng911.telus.com 2 2025-07-11 2026-06-04 nxdomain
ims.edtnab.ng911.telus.com 2 2025-07-11 2026-06-04 nxdomain
nghp.vancbc.ng911.telus.com 2 2025-07-11 2026-06-04 nxdomain
ims.vancbc.ng911.telus.com 2 2025-07-11 2026-06-04 nxdomain
vdesk-ti1.telus.com 2 2026-03-26 2026-09-11 nxdomain
pwn1.telus.com 1 2025-12-05 2025-12-05 nxdomain
smart-reporting-a-pr1.telus.com 2 2025-06-24 2026-06-26 ok
itsm-a-pr1.telus.com 2 2025-06-24 2026-06-26 ok
sso-a-pr1.telus.com 1 2026-05-06 2026-05-06 ok
dwp-a-pr1.telus.com 2 2025-06-24 2026-06-26 ok
smart-it-a-pr1.telus.com 2 2025-06-24 2026-06-26 ok
smart-reporting-a-pt1.telus.com 1 2025-12-05 2025-12-05 ok
itsm-a-pt1.telus.com 1 2025-12-05 2025-12-05 ok
sso-a-pt1.telus.com 2 2026-02-13 2026-02-13 ok
dwp-a-pt1.telus.com 1 2025-12-05 2025-12-05 ok
smart-it-a-pt1.telus.com 1 2025-12-05 2025-12-05 ok
smart-reporting-a-st1.telus.com 1 2025-12-05 2025-12-05 ok
itsm-a-st1.telus.com 1 2025-12-05 2025-12-05 ok
sso-a-st1.telus.com 1 2026-02-13 2026-02-13 ok
dwp-a-st1.telus.com 1 2025-12-05 2025-12-05 ok
smart-it-a-st1.telus.com 1 2025-12-05 2025-12-05 ok
aha-east1.telus.com 1 2026-01-05 2026-01-05 ok
vde-ext1.telus.com 1 2026-01-28 2026-01-28 ok
vaw-ext1.telus.com 1 2026-01-31 2026-01-31 ok
vdw-ext1.telus.com 1 2026-02-24 2026-02-24 ok
traffic-monitoring.143072-02.telus.com 1 2026-01-28 2026-01-28 ok
performance-reports.143072-02.telus.com 1 2026-01-28 2026-01-28 ok
fault-management.143072-02.telus.com 1 2026-05-04 2026-05-04 ok
performance-reports.145956-02.telus.com 1 2026-01-28 2026-01-28 ok
portal-lcd02.telus.com 1 2025-10-28 2025-10-28 ok
mlp-h02.telus.com 4 2026-03-08 2026-08-24 ok
mlp-m02.telus.com 4 2026-03-04 2026-08-20 ok
config.naas-itn02.telus.com 20 2025-11-07 2026-09-21 ok
siemclouddp02.telus.com 9 2025-10-30 2026-08-27 ok
digitalsignature-its02.telus.com 1 2026-01-28 2026-01-28 ok
partnerauth-it02.telus.com 12 2026-04-16 2026-08-13 ok
vpop-isp-it02.telus.com 15 2026-04-11 2026-10-06 ok
channelsales-it02.telus.com 9 2026-05-30 2026-09-25 ok
mssportal-preprod2.telus.com 1 2026-01-26 2026-01-26 ok
siemclouddp2.telus.com 1 2025-11-10 2025-11-10 ok
cs2.telus.com 1 2025-12-04 2025-12-04 ok
vde-ext2.telus.com 1 2026-03-24 2026-03-24 ok
vaw-ext2.telus.com 1 2026-01-31 2026-01-31 ok
vdw-ext2.telus.com 1 2026-02-24 2026-02-24 ok
txt2.telus.com 5 2026-06-07 2026-10-03 ok
traffic-monitoring.143072-03.telus.com 1 2026-01-28 2026-01-28 ok
performance-reports.143072-03.telus.com 1 2026-01-28 2026-01-28 ok
fault-management.143072-03.telus.com 1 2026-01-28 2026-01-28 ok
digitalsignature-dv103.telus.com 1 2026-01-28 2026-01-28 ok
cls-h03.telus.com 1 2026-02-02 2026-02-02 ok
cls-l03.telus.com 1 2026-02-02 2026-02-02 ok
cls-m03.telus.com 1 2026-09-01 2026-09-01 ok
config.naas-itn03.telus.com 16 2025-11-07 2026-09-13 ok
cls-p03.telus.com 1 2026-09-01 2026-09-01 ok
digitalsignature-its03.telus.com 1 2026-01-28 2026-01-28 ok
partnerauth-it03.telus.com 10 2026-04-16 2026-08-12 ok
vpop-isp-it03.telus.com 19 2026-04-10 2026-10-04 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/telus.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/telus.com.