Top-Level Domain

.com

Aggregated statistics for the top-level domain

Apex domains

80,958,462

we've enumerated

Subdomains seen

312,779,387

CT + DNS + brute

TLS certs

1,611,004

naming .com

Hosting ASNs

—

distinct origins

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

Apex	Subdomains
amazonaws.com	78,728,003
azure.com	9,202,136
kafka.us-east-1.amazonaws.com	4,043,315
cisco.com	2,924,847
ondemand.com	1,764,315
kafka-beta.us-east-1.amazonaws.com	1,633,558
microsoft-int.com	1,359,010
cloudflaressl.com	960,762
hubspot-at-test.com	739,384
mmscloudtest.com	663,358
zendesk.com	593,530
arconazure.com	361,543
myftpupload.com	350,136
cloudflarestorage.com	341,992
dynamics.com	330,419
splunkcloud.com	315,146
ava.us-east-1.amazonaws.com	301,339
waconazure.com	285,466
mscds.com	221,025
herokuspace.com	176,703
ups.com	157,149
amazongamelift.com	148,683
herokusnitest.com	148,029
caddy-one-ibe-redirect-proxy.eu-central-1.elasticbeanstalk.com	141,326
microsoft.com	123,889
asuscomm.com	101,754
a2z.com	97,995
loxonecloud.com	92,394
solinkcloud.com	86,025
ondigitalocean.com	81,439
ludevices.com	80,919
certsbridge.com	80,370
ccaiplatform.com	77,288
noondaycollection.com	76,636
sureserver.com	72,699
att.com	69,242
webex.com	63,290
smattermost.com	59,937
register.com	56,761
amazon.com	56,032
blockchainnodeengine.com	55,394
bringimpact2022.com	53,321
vendia.com	53,219
doodlekit.com	52,264
optum.com	50,058
lambdaspaces.com	49,250
flowers-to-the-world.com	45,457
amazonlightsail.com	45,285
maximo.com	44,274
exprealty.com	43,693

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

Technology	Hosts
Plesk	1
Nginx	1

Feed	Category	Domains
openphish	phishing	3,817

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