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You are viewing an outdated report. The latest version of this report was published on October 1st, 2021


    
Certificate Authority Market Share Report
January 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 doesn't verify the signatures of the certificates it finds, it only uses the issuer Organization Name to uniquely identify the issuing CA.

CA December 2016
Count
December 2016
%
November 2016
Count
November 2016
%
Growth
%
GoDaddy.com, Inc.622,91319.78604,25219.92-0.68
DigiCert505,14216.04337,37911.1244.25
COMODO CA Limited487,96215.50472,25615.57-0.45
GeoTrust Inc.401,24212.74393,15512.96-1.68
GlobalSign nv-sa220,9567.02214,8947.08-0.94
Symantec Corporation123,2143.91251,1198.28-52.73
Gandi90,8052.8889,5992.95-2.36
thawte, Inc.72,5092.3071,3412.35-2.08
Let's Encrypt66,5312.1153,8191.7719.10
Starfield Technologies, Inc.42,6491.3542,1741.39-2.57
StartCom Ltd.34,1971.0933,0171.09-0.21
Unizeto Technologies S.A.33,8111.0733,3531.10-2.33
Microsoft Corporation33,2131.0532,4341.07-1.34
Unknown29,0940.9228,6680.94-2.23
Internet228,2620.9028,0140.92-2.80
Entrust, Inc.25,7730.8225,4100.84-2.28
TERENA23,8380.7623,4310.77-1.98
Network Solutions L.L.C.21,3610.6821,2850.70-3.31
Amazon17,6460.5619,7720.65-14.02
Parallels17,3620.5517,1370.56-2.39
GeoTrust, Inc.15,9800.5117,5050.58-12.05
Google Inc15,2660.4813,6640.457.64
cPanel, Inc.14,5520.4611,1190.3726.09
Trustwave Holdings, Inc.12,6030.4012,6680.42-4.15
SomeOrganization11,2270.3610,7760.360.38
QuoVadis Limited8,2770.268,0740.27-1.23
none7,2750.236,7460.223.90
Cybertrust Japan Co., Ltd.6,2190.206,0380.20-0.77
WoSign CA Limited5,6100.185,4990.18-1.71
Verizon Enterprise Solutions5,2650.175,5450.18-8.52
DreamHost4,8590.154,3960.146.49
Odin4,8330.154,2390.149.84
Verisign4,5030.145,4650.18-20.62
Thawte, Inc.4,1260.134,6260.15-14.07
Comodo Limited4,1250.134,0700.13-2.35
SECOM Trust Systems CO.,LTD.3,5450.113,5380.12-3.47
SecureCore3,5090.113,1330.107.91
ispgateway3,2400.103,1960.11-2.33
Corporation Service Company2,8910.092,8280.09-1.51
Internet Widgits Pty Ltd2,6920.092,3470.0810.51
nazwa.pl sp. z o.o.2,6670.082,5040.082.61
KDDI Web Communications Inc.2,4450.082,3840.08-1.19
AlphaSSL2,2860.072,9690.10-25.82
Hostpoint GmbH2,1190.071,7990.0613.48
CloudFlare, Inc.2,0810.0700.00N/A
home.pl S.A.2,0140.061,7200.0612.81
National Institute of Informatics1,9910.061,9520.06-1.73
Government of Korea1,9220.061,9160.06-3.36
Equifax (Geotrust)1,7900.061,8260.06-5.56
T-Systems International GmbH1,7230.051,7140.06-3.15
SSL.com1,6770.051,5640.053.30
Volusion, Inc.1,5850.051,6560.05-7.79
Trust Provider B.V.1,5760.051,3620.0411.48
TAIWAN-CA1,3520.041,1960.048.91
DOMENY.PL sp. z o.o1,3090.041,2300.042.53
EUNETIC GmbH1,2120.041,1920.04-2.04
U.S. Government1,1610.041,1870.04-5.77
UIC1,1560.041,1540.04-3.49
Pizza-Taxi.de GmbH / CA1,0820.038810.0318.32
Rede Nacional de Ensino e Pesquisa - RNP1,0230.039670.031.92
SwissSign AG1,0000.039620.030.15
KEYNECTIS9980.039260.033.83
Trend Micro Inc9660.039390.03-0.89
NetLock Kft.9590.039410.03-1.81
Intermediate Certificate9280.031,0250.03-12.77
CAcert Inc.8510.038420.03-2.63
WebSupport, s.r.o.7280.026660.025.31
Root CA7260.027600.03-7.97
Comodo CA Limited6930.027360.02-9.29
Dreamcommerce S.A.6310.025930.022.52
Zimbra Collaboration Server6250.026170.02-2.41
Actalis S.p.A./033585209676080.025800.020.99
FNMT-RCM6070.026030.02-3.02
TBS INTERNET5930.025850.02-2.34
Thawte5910.026040.02-5.73
Globe Hosting, Inc.5780.026000.02-7.19
ICP-Brasil5380.025580.02-7.11
KPN Corporate Market BV5340.025440.02-5.43
AC Camerfirma S.A.5130.025010.02-1.35
GANDI SAS5120.026330.02-22.07
ACCV4990.024950.02-2.88
Parallels, Inc.4830.024770.02-2.44
SWsoft, Inc.4690.014560.02-0.91
Buypass AS-9831633274510.014360.01-0.34
Plesk4020.0100.00N/A
XX4010.013550.018.83
Default Company Ltd3900.013420.019.86
Hosting Ukraine LLC3770.013070.0118.31
FIDUCIA & GAD IT AG3730.013700.01-2.88
Japan Registry Services Co., Ltd.3690.012800.0126.97
Firstserver, Inc3670.013660.01-3.39
Snake Oil, Ltd3480.013490.01-3.93
Universitaet Stuttgart3440.013340.01-0.77
CrossTrust3370.013480.01-6.70
WEDOS Internet, a.s.3360.012820.0114.79
Dell Inc.3360.013280.01-1.31
Yandex LLC3190.013110.01-1.18
Apache HTTP Server3040.013010.01-2.70
Test Self SSL Company2780.0100.00N/A
Karlsruhe Institute of Technology2730.012600.011.16

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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