Top-Level Domain

.com

Aggregated statistics for the top-level domain

Apex domains

80,683,381

we've enumerated

Subdomains seen

311,293,799

CT + DNS + brute

TLS certs

1,604,672

naming .com

Hosting ASNs

—

distinct origins

Apex domains with the most known subdomains — large orgs, telecoms, hosters.

Apex	Subdomains
amazonaws.com	78,599,169
azure.com	9,163,808
kafka.us-east-1.amazonaws.com	4,036,988
cisco.com	2,917,442
ondemand.com	1,761,298
kafka-beta.us-east-1.amazonaws.com	1,631,115
microsoft-int.com	1,353,145
cloudflaressl.com	953,246
hubspot-at-test.com	734,046
mmscloudtest.com	655,908
zendesk.com	588,346
arconazure.com	357,168
myftpupload.com	344,252
cloudflarestorage.com	339,452
dynamics.com	329,865
splunkcloud.com	314,736
ava.us-east-1.amazonaws.com	300,951
waconazure.com	285,005
mscds.com	220,630
herokuspace.com	175,411
ups.com	156,503
amazongamelift.com	148,515
herokusnitest.com	146,920
caddy-one-ibe-redirect-proxy.eu-central-1.elasticbeanstalk.com	138,971
microsoft.com	120,099
asuscomm.com	100,798
a2z.com	97,886
loxonecloud.com	91,624
solinkcloud.com	85,904
ondigitalocean.com	80,864
ludevices.com	80,059
certsbridge.com	78,867
ccaiplatform.com	76,658
noondaycollection.com	76,311
sureserver.com	71,634
att.com	69,215
webex.com	63,166
smattermost.com	59,862
register.com	55,684
amazon.com	55,658
blockchainnodeengine.com	55,064
vendia.com	53,144
bringimpact2022.com	53,004
doodlekit.com	51,074
optum.com	49,975
lambdaspaces.com	48,864
flowers-to-the-world.com	45,442
amazonlightsail.com	45,266
maximo.com	43,990
exprealty.com	43,410

Forward-DNS crawler hasn't resolved enough .com apexes to BGP-attributable IPs.

Technology	Hosts
Plesk	1
Nginx	1

Feed	Category	Domains
openphish	phishing	3,781

ℹ Coverage will improve significantly once CZDS zone-file access is granted for this TLD.