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) · 339 ms

HostCertsFirst seenLast seenDNS
fi.com 12 2025-08-05 2026-08-21 ok
*.fi.com 2 2025-08-05 2026-08-21 —
EQ-SM-P00940.fi.com 1 2025-12-31 2025-12-31 —
UKLD7-AWS-VOICE-CUBE-RTR01.fi.com 1 2025-10-30 2025-10-30 —
sm1-cube-gcloud-rtr01.fi.com 1 2025-11-24 2025-11-24 ok
ussv11-voicecube-rtr01.fi.com 2 2025-10-09 2025-10-30 nxdomain
usse4-voicecube-rtr01.fi.com 3 2025-09-26 2025-10-31 nxdomain
ukld7-voicecube-rtr01.fi.com 1 2026-03-18 2026-03-18 nxdomain
sbc-ukld7-voicecube-rtr01.fi.com 1 2026-03-18 2026-03-18 ok
test0821.fi.com 2 2026-08-21 2026-08-21 nxdomain
EP-SM-P00941.fi.com 1 2025-12-24 2025-12-24 —
ehfc1.fi.com 1 2026-02-02 2026-02-02 ok
ukld7-msteams-prod1.fi.com 1 2025-08-19 2025-08-19 ok
dsprd1.fi.com 1 2025-12-24 2025-12-24 nxdomain
Crownturtle1.fi.com 1 2025-09-15 2025-09-15 —
ehsm1.fi.com 1 2026-02-02 2026-02-02 ok
pper1.fi.com 4 2025-09-17 2026-09-28 ok
UKLD7-AWS-VOICE-CUBE-RTR02.fi.com 1 2025-10-30 2025-10-30 —
fc01-aws-voice-cube-rtr02.fi.com 1 2025-11-05 2025-11-05 ok
pl01-aws-voice-cube-rtr02.fi.com 1 2025-11-05 2025-11-05 ok
sm01-aws-voice-cube-rtr02.fi.com 1 2025-11-05 2025-11-05 ok
ussv11-voicecube-rtr02.fi.com 2 2025-10-09 2025-10-30 nxdomain
usse4-voicecube-rtr02.fi.com 2 2025-10-09 2025-10-31 nxdomain
ukld7-voicecube-rtr02.fi.com 1 2026-03-18 2026-03-18 nxdomain
sbc-ukld7-voicecube-rtr02.fi.com 1 2026-03-18 2026-03-18 ok
EP-FC-P00942.fi.com 1 2025-12-24 2025-12-24 —
CP-SM-V01462.fi.com 1 2026-04-23 2026-04-23 —
na2.fi.com 1 2026-01-13 2026-01-13 ok
ehfc2.fi.com 1 2026-02-02 2026-02-02 ok
dsprd2.fi.com 1 2025-12-24 2025-12-24 nxdomain
ehsm2.fi.com 1 2026-02-02 2026-02-02 ok
pper2.fi.com 4 2025-09-17 2026-09-28 ok
st2.fi.com 2 2026-03-23 2026-09-25 ok
CP-FC-V01463.fi.com 1 2026-04-23 2026-04-23 —
ehfc3.fi.com 1 2026-02-02 2026-02-02 ok
ehsm3.fi.com 1 2026-02-02 2026-02-02 ok
TerryTest3.fi.com 1 2025-09-17 2025-09-17 —
cp-fc-v00284.fi.com 1 2026-04-23 2026-04-23 nxdomain
ehfc4.fi.com 1 2026-02-02 2026-02-02 ok
ehsm4.fi.com 1 2026-02-02 2026-02-02 ok
uswafc-prod-bip-15.fi.com 3 2025-10-13 2026-09-14 nxdomain
uscafi-prod-bip-15.fi.com 3 2025-10-13 2026-09-14 nxdomain
uswafc-prod-bip-16.fi.com 3 2025-10-13 2026-09-14 nxdomain
uscafi-prod-bip-16.fi.com 3 2025-10-13 2026-09-14 nxdomain
CQ-SM-V00876.fi.com 1 2025-12-02 2025-12-02 —
CQ-SM-V00877.fi.com 1 2025-12-02 2025-12-02 —
CP-SM-V01158.fi.com 2 2025-11-13 2025-11-18 —
VishnuDigiTest929.fi.com 9 2025-09-29 2025-10-06 —
CP-SM-V01159.fi.com 2 2025-11-13 2025-11-18 —
PMG-SFDC-SSOCert-03232026-QA.fi.com 1 2026-03-24 2026-03-24 —
PCGM-PCG-SFDC-SSOCert-08062026-QA.fi.com 1 2025-12-08 2025-12-08 —
PMG-SFDC-SSOCert-03062027-QA.fi.com 2 2026-08-18 2026-08-18 —
PMG-SFDC-SSOCert-02242026-PROD.fi.com 1 2026-02-24 2026-02-24 —
PCGM-PCG-SFDC-SSOCert-08062026-PROD.fi.com 1 2025-08-12 2025-08-12 —
PCGM-PCG-SFDC-SSOCert-08062027-PROD.fi.com 1 2026-08-07 2026-08-07 —
PMG-SFDC-SSOCert-03162027-PROD.fi.com 2 2026-08-31 2026-08-31 —
PCGM-PCG-SFDC-SSOCert-04162027-PREPROD.fi.com 1 2026-09-28 2026-09-28 —
na2-UK.fi.com 1 2026-01-13 2026-01-13 —
na2-cdn-UK.fi.com 1 2026-01-13 2026-01-13 —
na2-SM.fi.com 1 2026-01-13 2026-01-13 —
na2-cdn-SM.fi.com 1 2026-01-13 2026-01-13 —
na2q-SM.fi.com 3 2025-08-04 2026-08-25 —
na2-CS.fi.com 1 2026-01-13 2026-01-13 —
na2-cdn-CS.fi.com 1 2026-01-13 2026-01-13 —
na2q-CS.fi.com 3 2025-08-04 2026-08-25 —
PMG-SFDC-SSOCert-05122026-UAT.fi.com 1 2026-05-13 2026-05-13 —
PMG-SFDC-SSOCert-03232026-UAT.fi.com 1 2026-03-27 2026-03-27 —
PCGM-PCG-SFDC-SSOCert-02102027-UAT.fi.com 1 2026-02-11 2026-02-11 —
PCGM-PCG-SFDC-SSOCert-08062027-SVCDEV.fi.com 1 2026-08-07 2026-08-07 —
PCGM-PCG-SFDC-SSOCert-042120206-SLSDEV.fi.com 1 2026-04-21 2026-04-21 —
PCGM-PCG-SFDC-SSOCert-08072027-SLSDEV.fi.com 1 2026-08-07 2026-08-07 —
genrocket-cloud-qa.fi.com 1 2025-09-16 2025-09-16 nxdomain
t00012-vm-qa.fi.com 1 2025-09-16 2025-09-16 nxdomain
fi-fig-rds-qa.fi.com 1 2026-06-29 2026-06-29 nxdomain
fidocrouterqa.fi.com 1 2025-12-02 2025-12-02 nxdomain
TerryTestECCPub.fi.com 13 2025-10-06 2026-05-05 —
vcc.fi.com 1 2026-01-13 2026-01-13 ok
t0016vmsq01r01d.fi.com 2 2025-10-17 2026-08-13 nxdomain
TerryRSAPubProd.fi.com 1 2025-10-07 2025-10-07 —
dsprd.fi.com 1 2025-12-24 2025-12-24 ok
sbc-ussv11-voicecube.fi.com 2 2025-10-09 2025-10-30 ok
sbc-usse4-voicecube.fi.com 2 2025-10-09 2025-10-31 ok
collab-edge.fi.com 6 2025-09-15 2025-12-09 nxdomain
northturtle.fi.com 1 2025-12-07 2025-12-07 ok
southturtle.fi.com 1 2025-12-09 2025-12-09 ok
Eastturtle.fi.com 1 2025-12-03 2025-12-03 —
coastturtle.fi.com 1 2025-12-07 2025-12-07 ok
westturtle.fi.com 1 2025-12-07 2025-12-07 nxdomain
fi-fig-rds-pmg.fi.com 1 2026-06-29 2026-06-29 nxdomain
vpsgoatfish.fi.com 1 2026-04-23 2026-04-23 nxdomain
local.fi.com 3 2026-01-16 2026-06-23 ok
mail.fi.com 1 2026-02-02 2026-02-02 ok
vcc-sm.fi.com 1 2026-01-13 2026-01-13 ok
citrix-license-vip.gtm.fi.com 1 2026-04-23 2026-04-23 nxdomain
na2.egtm.fi.com 1 2026-01-13 2026-01-13 ok
na2-UK.egtm.fi.com 1 2026-01-13 2026-01-13 —
na2-cdn-UK.egtm.fi.com 1 2026-01-13 2026-01-13 —
na2-SM.egtm.fi.com 1 2026-01-13 2026-01-13 —
na2-cdn-SM.egtm.fi.com 1 2026-01-13 2026-01-13 —
na2-CS.egtm.fi.com 1 2026-01-13 2026-01-13 —

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/fi.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/fi.com.