Top-Level Domain

.microsoft

Aggregated statistics for the top-level domain

Apex domains

we've enumerated

Subdomains seen

6,270

CT + DNS + brute

TLS certs

862

naming .microsoft

Hosting ASNs

distinct origins

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

Apex	Subdomains
cloud.microsoft	2,949
core.microsoft	1,155
dev.microsoft	1,127
usgovcloud.microsoft	214
static.microsoft	182
cloud-dev.microsoft	99
usercontent.microsoft	85
usgovcloud-core.microsoft	64
mx.microsoft	42
status.microsoft	41
usgovcloud-static.microsoft	36
usgovcloud-usercontent.microsoft	26
go.microsoft	13
nic.microsoft	11
usgovcloud-mx.microsoft	11
mail.microsoft	11
office.microsoft	7
domainsdata.microsoft	6
onenote.microsoft	6
www.microsoft	6
teams.microsoft	6
outlook.microsoft	6
excel.microsoft	6
powerpoint.microsoft	6
word.microsoft	6
m365.microsoft	6
rdap.microsoft	6
domains.microsoft	5
login.microsoft	4
microsoft365.microsoft	4
download.microsoft	3
ntservicepack.microsoft	3
my.microsoft	3
xboxseriesx.microsoft	3
hackingstem.microsoft	3
windowsazure.microsoft	3
visualstudio.microsoft	3
gamestack.microsoft	3
ieonline.microsoft	3
manufacturing.microsoft	3
support.microsoft	3
account.microsoft	3
windows.microsoft	3
lumia.microsoft	3
hololens.microsoft	3
dynamics.microsoft	3
productivity.microsoft	3
corp.microsoft	3
bing.microsoft	3
groove.microsoft	3

Issuer (CA)	Certs
Microsoft TLS G2 RSA CA OCSP 04	251
Microsoft TLS G2 RSA CA OCSP 02	206
Microsoft TLS G2 RSA CA OCSP 16	181
Microsoft TLS G2 RSA CA OCSP 10	165
Non Production Issuing Certificate Authority 2024	40
Microsoft TLS G2 ECC CA OCSP 02	5
Microsoft TLS G2 ECC CA OCSP 06	4
DigiCert	2
CCME G1 TLS RSA 2048 SHA256 2049 WUS2 CA 01	2
CCME G1 TLS RSA 2048 SHA256 2049 WCUS CA 01	2
CCME G1 TLS RSA 2048 SHA256 2049 CUS CA 01	1
NrocProxy	1
CCME G1 TLS RSA 2048 SHA256 2049 EUS2 CA 01	1
surface.ams-developer.microsoft.com	1

Body-fetcher hasn't covered enough .microsoft sites yet for stack patterns to emerge.

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