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) · 436 ms

HostCertsFirst seenLast seenDNS
esri.com 32 2025-12-11 2026-08-28 ok
*.esri.com 37 2025-08-19 2026-08-28 —
las-inf-uyuni-1.esri.com 4 2025-08-12 2026-09-17 nxdomain
cds-ags-1.esri.com 2 2025-07-29 2026-07-30 ok
Red-inf-owa-p01.esri.com 3 2025-07-21 2025-07-22 —
red-inf-cpi-p01.esri.com 1 2025-08-25 2025-08-25 nxdomain
wdc-inf-ise-an-p01.esri.com 1 2026-02-12 2026-02-12 nxdomain
las-inf-ise-an-p01.esri.com 2 2026-04-06 2026-09-25 nxdomain
wdc-inf-ise-pn-p01.esri.com 1 2026-02-12 2026-02-12 nxdomain
las-inf-ise-pn-p01.esri.com 2 2026-04-06 2026-09-25 nxdomain
las-inf-cap-p01.esri.com 1 2025-10-14 2025-10-14 nxdomain
las-inf-cat-p01.esri.com 3 2026-04-15 2026-09-30 nxdomain
las-inf-sat-p01.esri.com 1 2025-10-14 2025-10-14 nxdomain
red-inf-amt-p01.esri.com 1 2025-12-18 2025-12-18 nxdomain
las-inf-apt-p01.esri.com 1 2025-12-10 2025-12-10 nxdomain
indoorsbldw11.esri.com 2 2025-10-06 2026-09-29 nxdomain
indoorstestw11.esri.com 2 2025-10-14 2026-09-29 nxdomain
azw2sap1fp1a1.esri.com 1 2025-10-17 2025-10-17 nxdomain
azw2sapsq2a1.esri.com 2 2025-09-18 2026-09-22 nxdomain
azw2otxqa1ca1.esri.com 1 2025-11-19 2025-11-19 nxdomain
azw2otxprd1ca1.esri.com 1 2025-11-20 2025-11-20 nxdomain
azw2sap1prda1.esri.com 2 2026-01-05 2026-01-27 nxdomain
azw2sapprda1.esri.com 2 2026-01-05 2026-01-27 nxdomain
azw2otxqa1wb1.esri.com 3 2025-10-22 2025-11-17 nxdomain
azw2otxprd1wb1.esri.com 3 2025-11-20 2026-01-16 nxdomain
geoeventsample1.esri.com 1 2025-10-17 2025-10-17 ok
agsinspire1.esri.com 1 2025-11-18 2025-11-18 ok
mardemo1.esri.com 3 2025-11-03 2026-09-07 ok
transdemo1.esri.com 1 2026-02-02 2026-02-02 ok
red-str-sgt2ad-vm1-p1.esri.com 3 2025-08-14 2026-08-19 nxdomain
bei-inf-sbc-p1.esri.com 1 2025-10-20 2025-10-20 ok
zur-inf-sbc-p1.esri.com 1 2025-10-20 2025-10-20 ok
red-inf-sbcv-p1.esri.com 2 2025-08-06 2026-07-24 ok
red-inf-mx-p1.esri.com 2 2025-08-12 2026-07-22 nxdomain
azw2sap1fp1cs1.esri.com 1 2025-10-17 2025-10-17 nxdomain
azw2sapfq2cs1.esri.com 5 2025-09-22 2026-09-25 nxdomain
azw2sapsq2cs1.esri.com 2 2025-09-18 2026-09-22 nxdomain
azw2sap1prdcs1.esri.com 2 2026-01-05 2026-01-27 nxdomain
azw2sapprdcs1.esri.com 2 2026-01-05 2026-01-27 nxdomain
azw2sap1wp1ps1.esri.com 1 2025-12-11 2025-12-11 nxdomain
azw2sapwp1ps1.esri.com 1 2025-12-11 2025-12-11 nxdomain
azw2sapqw2ps1.esri.com 4 2025-09-29 2026-09-25 nxdomain
SCTASK1609960-test1.esri.com 1 2026-05-28 2026-05-28 —
topodev1.esri.com 2 2026-09-18 2026-09-18 ok
mardev1.esri.com 3 2025-11-03 2026-09-07 ok
cds-ags-2.esri.com 2 2025-07-29 2026-07-30 ok
efs-data-prod02.esri.com 1 2025-07-25 2025-07-25 nxdomain
Red-inf-owa-p02.esri.com 3 2025-07-21 2025-07-22 —
las-inf-cap-p02.esri.com 1 2025-10-14 2025-10-14 nxdomain
SMTP2.esri.com 2 2025-08-12 2026-07-22 —
azw2sapsq2a2.esri.com 2 2025-09-18 2026-09-22 nxdomain
azw2sap1prda2.esri.com 2 2026-01-05 2026-01-27 nxdomain
azw2sapprda2.esri.com 2 2026-01-05 2026-01-27 nxdomain
indoorsge2.esri.com 3 2026-03-05 2026-08-25 nxdomain
geoeventsample2.esri.com 1 2025-10-18 2025-10-18 ok
agsinspire2.esri.com 1 2026-05-06 2026-05-06 ok
splunk-hf2.esri.com 1 2026-04-06 2026-04-06 nxdomain
www.splunk-hf2.esri.com 1 2026-04-06 2026-04-06 nxdomain
redistricting2.esri.com 1 2026-02-10 2026-02-10 ok
heportal2.esri.com 1 2025-11-14 2025-11-14 ok
indoorsportal2.esri.com 1 2026-02-04 2026-02-04 nxdomain
transdemo2.esri.com 1 2026-02-02 2026-02-02 ok
dub-inf-ucgw-p2.esri.com 1 2026-06-25 2026-06-25 ok
bei-inf-ucgw-p2.esri.com 1 2026-07-15 2026-07-15 ok
red-inf-mx-p2.esri.com 2 2025-08-12 2026-07-22 nxdomain
seacmstgapp2.esri.com 1 2025-10-06 2025-10-06 ok
tmtracker2.esri.com 1 2026-05-15 2026-05-15 ok
azw2sap1fp1cs2.esri.com 1 2025-10-17 2025-10-17 nxdomain
azw2sapfq2cs2.esri.com 5 2025-09-22 2026-09-25 nxdomain
azw2sapsq2cs2.esri.com 2 2025-09-18 2026-09-22 nxdomain
azw2sap1prdcs2.esri.com 2 2026-01-05 2026-01-27 nxdomain
azw2sapprdcs2.esri.com 2 2026-01-05 2026-01-27 nxdomain
azw2sap1wp1ps2.esri.com 1 2025-12-11 2025-12-11 nxdomain
azw2sapwp1ps2.esri.com 1 2025-12-11 2025-12-11 nxdomain
azw2sapqw2ps2.esri.com 4 2025-09-29 2026-09-25 nxdomain
surveys2.esri.com 1 2025-11-14 2025-11-14 ok
SCTASK1609960-test2.esri.com 2 2026-06-01 2026-06-01 —
agi-dev-3.esri.com 3 2025-11-03 2026-09-07 ok
devagjs00003.esri.com 1 2026-03-05 2026-03-05 nxdomain
redowa2013.esri.com 1 2025-08-12 2025-08-12 nxdomain
imgis2023.esri.com 4 2025-06-09 2026-05-11 ok
dev0021643.esri.com 1 2026-03-05 2026-03-05 nxdomain
azw2sap1prda3.esri.com 2 2026-01-05 2026-01-27 nxdomain
azw2sapprda3.esri.com 2 2026-01-05 2026-01-27 nxdomain
geoeventsample3.esri.com 3 2025-09-26 2026-09-29 ok
splunk-hf3.esri.com 1 2026-04-06 2026-04-06 nxdomain
www.splunk-hf3.esri.com 1 2026-04-06 2026-04-06 nxdomain
indoorsportal3.esri.com 1 2025-10-06 2025-10-06 nxdomain
transdemo3.esri.com 1 2026-05-04 2026-05-04 ok
red-inf-mx-p3.esri.com 1 2026-07-22 2026-07-22 nxdomain
tmtracker3.esri.com 1 2026-05-15 2026-05-15 ok
SCTASK1609960-test3.esri.com 1 2026-06-01 2026-06-01 —
devsummit2024.esri.com 4 2025-08-17 2026-07-21 ok
azw2sap1prda4.esri.com 2 2026-01-05 2026-01-27 nxdomain
azw2sapprda4.esri.com 2 2026-01-05 2026-01-27 nxdomain
geoeventsample4.esri.com 1 2025-12-17 2025-12-17 ok
splunk-hf4.esri.com 1 2026-04-06 2026-04-06 nxdomain
www.splunk-hf4.esri.com 1 2026-04-06 2026-04-06 nxdomain
minio4.esri.com 1 2026-04-15 2026-04-15 nxdomain
red-inf-mx-p4.esri.com 1 2026-07-22 2026-07-22 nxdomain

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/esri.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/esri.com.