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You are viewing an outdated report.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


    
Certificate Authority Market Share Report
May 1st, 2013

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 April 2013
Count
April 2013
%
March 2013
Count
March 2013
%
Growth
%
GoDaddy.com, Inc.276,74720.91278,22221.52-2.82
GeoTrust, Inc.217,52916.44203,73815.764.31
COMODO CA Limited111,4768.42104,5438.094.17
Verisign92,5066.9992,2877.14-2.07
Thawte, Inc.68,5645.1867,7015.24-1.06
DigiCert64,4954.8761,8384.781.89
GlobalSign nv-sa49,3313.7346,8253.622.92
GeoTrust Inc.49,2033.7248,7213.77-1.34
Unknown34,1322.5833,7212.61-1.12
Starfield Technologies, Inc.26,2191.9825,6421.98-0.11
CAcert Inc.26,0621.9724,0481.865.88
Network Solutions L.L.C.25,6311.9425,8992.00-3.32
Equifax (Geotrust)21,7701.6522,4891.74-5.43
Comodo Limited17,6781.3418,8151.46-8.21
Entrust, Inc.16,8021.2716,2851.260.79
StartCom Ltd.14,8701.1214,2461.101.97
Comodo CA Limited14,4371.0914,7811.14-4.58
TERENA13,8141.0413,4711.040.18
AlphaSSL13,1220.9912,5060.972.51
Internet210,7190.8110,0950.783.73
Cybertrust Inc8,3650.636,2630.4830.48
Parallels7,3940.567,0120.543.02
Volusion, Inc.6,3510.486,3540.49-2.35
SecureTrust Corporation6,3010.486,7240.52-8.45
SomeOrganization5,6060.425,5200.43-0.78
GeoTrust Inc5,5170.425,2590.412.49
GlobalSign4,9660.385,6040.43-13.43
Thawte4,9010.375,3620.41-10.71
Cybertrust Japan Co., Ltd.4,1270.314,1060.32-1.81
Trustwave Holdings, Inc.3,6670.283,3740.266.18
SECOM Trust Systems CO.,LTD.3,4310.263,3400.260.36
Unizeto Technologies S.A.3,0150.232,9070.221.32
thawte, Inc.2,9910.232,9350.23-0.44
Google Inc2,8910.222,8370.22-0.45
Servision Inc.2,2480.172,2190.17-1.03
GANDI SAS1,9050.141,8040.143.16
Root CA1,8950.141,8940.15-2.25
Alpha1,8540.141,8660.14-2.93
GTE Corporation1,6880.131,6780.13-1.72
QuoVadis Limited1,5440.121,5000.120.56
U.S. Government1,4540.111,4660.11-3.11
ispgateway1,4330.111,4050.11-0.36
none1,4320.111,4230.11-1.69
Trusted Secure Certificate Authority1,3470.101,3240.10-0.61
Register.com1,2640.101,2640.10-2.31
Globe Hosting, Inc.1,1020.081,0660.080.99
Government of Korea1,0850.081,0360.082.31
SWsoft, Inc.1,0710.081,1310.09-7.49
T-Systems International GmbH1,0230.081,0180.08-1.83
UIC1,0150.0800.00N/A
TC TrustCenter GmbH1,0140.081,0460.08-5.30
National Institute of Informatics9750.079490.070.37
AusCERT9450.079260.07-0.30
Autistici/Inventati9330.079060.070.60
EUNETIC GmbH8830.078560.070.77
Parallels, Inc.7410.067370.06-1.78
ips Certification Authority7250.057370.06-3.90
Snake Oil, Ltd6920.057210.06-6.24
TAIWAN-CA INC.6300.056130.050.40
FNMT4800.044690.04-0.02
Firstserver, Inc4740.044730.04-2.10
Internet Widgits Pty Ltd4560.034430.030.56
NetLock Kft.4410.034210.032.33
CrossTrust4350.034340.03-2.08
RBC Hosting Center4260.034410.03-5.63
OCC4210.034220.03-2.54
TBS INTERNET4180.034180.03-2.31
ICP-Brasil4160.034210.03-3.47
WTF ALFA4150.034120.03-1.60
SECOM Trust.net4070.034900.04-18.85
Zimbra Collaboration Suite3830.033940.03-5.03
Apache HTTP Server3590.033580.03-2.03
OVH SAS3430.033670.03-8.70
SwissSign AG3410.033350.03-0.56
Getronics Nederland BV3220.023200.02-1.70
OptimumSSL CA3180.023160.02-1.69
XX3160.023060.020.89
KAGOYA JAPAN Inc.3070.022900.023.42
NetLock Halozatbiztonsagi Kft.2990.023120.02-6.38
Generalitat Valenciana2870.022670.025.01
HTTPS Management Certificate for SonicWALL (self-signed)2790.022650.022.85
InterWorx2700.022220.0218.82
SGssl2630.022460.024.44
Ministere education nationale (MENESR)2580.022540.02-0.77
Trend Micro Inc2520.022340.025.21
SonicWALL, Inc.2510.022590.02-5.32
DOMENY.PL Ltd.2310.022110.026.95
Agencia Catalana de Certificacio (NIF Q-0801176-I)2260.022190.020.82
WebSpace-Forum, Thomas Wendt2240.022230.02-1.87
Wells Fargo2130.022140.02-2.76
Dotname Korea Corp.2050.022050.02-2.31
Secure Business Services, Inc.2010.022110.02-6.94
TrustSign Certificadora Digital1970.011880.012.37
Digi-Sign Limited1950.011930.01-1.29
Positive Software1880.011920.01-4.34
My Company Ltd1870.011830.01-0.17
PVE Cluster Manager CA1760.0100.00N/A
Sonera1740.011770.01-3.96
Universitaet Stuttgart1720.011720.01-2.31
DREAMHOST CERTIFICATION AUTHORITY1710.011710.01-2.31

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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