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You are viewing an outdated report. The latest version of this report was published on September 1st, 2017


    
Certificate Authority Market Share Report
April 1st, 2017

Report Description
This report, much like our original certs and CAs report, focuses on issuers of SSL enabling certificates found on web servers. Unlike our original report, however, this report has a couple of key differences to it:

  • Reports on top 100 CAs. The original report only paid attention to the major CAs at the time the report was produced. This report lists the top 100 CAs for the month. You will find here many self-signing organizations such as universities, telecommunications firms, etc.
  • Uses issuer name as identifier. Our original report only counted a certificate towards an organization if we were able to prove, by virtue of verifying the key, that the organization in question actually signed the certificate. This had a notable problem with it - we don't always have the public key of the CA. In at least one case, a CA doesn't make their public key available unless you sign a license agreement.

    This report doesn't have that problem, since it only uses the issuer Organization Name to uniquely identify the issuing CA.

CA March 2017
Count
March 2017
%
February 2017
Count
February 2017
%
Growth
%
DigiCert1,056,44727.15836,89223.1617.23
GoDaddy.com, Inc.662,69517.03647,58417.92-4.97
COMODO CA Limited504,30112.96503,40513.93-6.97
GeoTrust Inc.426,43710.96419,29511.60-5.55
GlobalSign nv-sa248,2466.38240,1296.64-4.00
Symantec Corporation123,4143.17119,0223.29-3.71
Let's Encrypt108,5602.7991,6062.5310.05
Gandi93,6122.4192,7422.57-6.26
thawte, Inc.73,1671.8872,9272.02-6.83
Starfield Technologies, Inc.45,3991.1744,5351.23-5.33
Microsoft Corporation34,9960.9034,4680.95-5.71
Unizeto Technologies S.A.34,3700.8834,5180.96-7.53
Unknown33,6810.8731,7650.88-1.53
Internet229,3320.7529,2450.81-6.86
StartCom Ltd.26,5120.6830,0510.83-18.07
Entrust, Inc.26,2970.6826,0870.72-6.39
cPanel, Inc.25,3030.6521,0090.5811.84
Amazon25,1520.6528,6930.79-18.60
TERENA24,5990.6324,3450.67-6.17
Network Solutions L.L.C.20,5750.5320,8540.58-8.38
Google Inc20,2080.5218,0990.503.68
Parallels17,9010.4617,5900.49-5.49
Trustwave Holdings, Inc.12,9810.3312,6820.35-4.95
SomeOrganization12,5920.3212,1950.34-4.11
GeoTrust, Inc.11,5650.3013,1010.36-18.02
none9,0410.238,4510.23-0.65
QuoVadis Limited8,7060.228,6370.24-6.39
Cybertrust Japan Co., Ltd.6,7330.176,5940.18-5.18
Odin6,0880.165,6610.16-0.13
DreamHost6,0660.165,5910.150.75
WoSign CA Limited5,4380.145,5950.15-9.74
SecureCore4,4820.124,1430.110.46
Verizon Enterprise Solutions4,4280.117,5300.21-45.39
Comodo Limited4,0550.104,0750.11-7.59
Internet Widgits Pty Ltd3,5490.093,2490.091.44
SECOM Trust Systems CO.,LTD.3,5310.093,5580.10-7.84
nazwa.pl sp. z o.o.3,3820.092,8400.0810.59
ispgateway3,3710.093,3200.09-5.71
home.pl S.A.3,2240.082,7210.0810.03
Verisign3,1760.083,6100.10-18.30
Hostpoint GmbH3,0460.082,7450.083.05
Corporation Service Company2,9880.082,9370.08-5.52
Thawte, Inc.2,9840.083,4160.09-18.88
KDDI Web Communications Inc.2,5540.072,5360.07-6.48
SSL.com2,4360.061,8710.0520.91
CloudFlare, Inc.2,3430.062,2010.06-1.14
Trust Provider B.V.2,1460.061,9510.052.15
National Institute of Informatics2,0660.052,0700.06-7.32
Government of Korea2,0020.051,9390.05-4.12
T-Systems International GmbH1,7060.041,7210.05-7.95
Equifax (Geotrust)1,5950.041,6400.05-9.68
Pizza-Taxi.de GmbH / CA1,5620.041,4220.042.01
TAIWAN-CA1,5050.041,4620.04-4.40
AlphaSSL1,5020.042,0540.06-32.09
Plesk1,4640.049770.0339.15
DOMENY.PL sp. z o.o1,4240.041,4030.04-5.75
EUNETIC GmbH1,2520.031,2380.03-6.09
Volusion, Inc.1,2310.031,3720.04-16.68
UIC1,1640.031,1620.03-6.98
U.S. Government1,1470.031,1410.03-6.65
Rede Nacional de Ensino e Pesquisa - RNP1,1430.038670.0222.43
KEYNECTIS1,1410.031,1000.03-3.67
SwissSign AG1,1210.031,1120.03-6.38
NetLock Kft.9880.039980.03-8.07
WebSupport, s.r.o.9860.038300.0210.32
Trend Micro Inc8690.029280.03-13.04
Actalis S.p.A./033585209677850.026940.025.04
CAcert Inc.7290.027640.02-11.39
Dreamcommerce S.A.7280.027010.02-3.56
Intermediate Certificate6440.027290.02-17.96
Root CA6340.026620.02-11.06
Hosting Ukraine LLC6320.025270.0111.37
TBS INTERNET6240.026140.02-5.62
AC Camerfirma S.A.6240.026030.02-3.90
FNMT-RCM6210.026060.02-4.84
Zimbra Collaboration Server6160.026290.02-9.06
Japan Registry Services Co., Ltd.6130.024900.0116.17
Globe Hosting, Inc.6020.025920.02-5.57
Comodo CA Limited5770.016160.02-13.02
ICP-Brasil5540.015610.02-8.29
Thawte5470.015590.02-9.13
Buypass AS-9831633275440.015260.01-3.96
ACCV5100.015030.01-5.84
Default Company Ltd4680.014460.01-2.56
KPN Corporate Market BV4640.015110.01-15.68
XX4580.014520.01-5.90
WEDOS Internet, a.s.4540.014140.011.84
Parallels, Inc.4480.014400.01-5.45
HydrantID (Avalanche Cloud Corporation)4460.012840.0145.84
SWsoft, Inc.4230.014610.01-14.79
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.3980.0100.00N/A
Test Self SSL Company3960.013400.018.16
FIDUCIA & GAD IT AG3750.013730.01-6.64
GANDI SAS3680.014140.01-17.45
Universitaet Stuttgart3630.013550.01-5.04
Apache HTTP Server3560.013300.010.18
Firstserver, Inc3500.013490.01-6.87
Nijimo, Inc.3210.0100.00N/A
Yandex LLC3190.013190.01-7.14
CrossTrust3140.013230.01-9.72

Note: Readers are cautioned that the Growth percentages are based on a CA's market share penetration rather than the absolute number of certificates we detected. Thus, it is possible for the number of certificates to increase, while the growth is actually a negative value.



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