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You are viewing an outdated report. The latest version of this report was published on December 1st, 2022


    
Certificate Authority Market Share Report
December 1st, 2006

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.

RM CA Certificate Historical Market Share Graph

CA November 2006
Count
November 2006
%
October 2006
Count
October 2006
%
Growth
%
Verisign77,02925.8477,35726.33-1.84
Equifax (Geotrust)62,41020.9461,49820.930.04
Thawte41,77214.0141,43914.10-0.63
Comodo Limited14,0464.7114,8385.05-6.68
Starfield Technologies, Inc.13,2694.4512,3754.215.70
The USERTRUST Network9,7143.268,3832.8514.23
Unknown6,7982.286,5952.241.61
AddTrust AB5,4521.835,7591.96-6.68
DigiCert4,9791.6700.00N/A
Entrust.net4,2751.434,3181.47-2.40
SomeOrganization3,2561.093,2171.09-0.23
Network Solutions L.L.C.2,9060.972,7180.935.40
SWsoft, Inc.2,8440.952,7420.932.24
Snake Oil, Ltd1,9390.651,9560.67-2.28
XRamp Security Services Inc1,9260.651,8710.641.47
U.S. Government1,3780.461,4530.49-6.51
IPS Certification Authority s.l.1,0030.349750.331.41
Root CA9380.318730.305.92
TC TrustCenter for Security in Data Networks GmbH9240.319080.310.31
GlobalSign nv-sa8430.288110.282.47
Positive Software Corporation7060.247090.24-1.84
SECOM Trust.net5990.204540.1530.06
Betrusted Japan Co.,Ltd.5960.205990.20-1.92
Earthlink Inc4640.1600.00N/A
ispgateway3640.123560.120.79
Comodo Japan Inc.3060.103020.10-0.12
Cybertrust2980.102180.0734.75
GTE Corporation2770.092530.097.93
T-Systems Enterprise Services GmbH2650.092250.0816.10
Secure Business Services, Inc.2400.081980.0719.49
Firstserver, Inc.2150.072010.075.44
FreeSSL2110.072070.070.48
Kubota Systems Inc.2010.071940.072.13
TDC1930.061880.061.20
Comodo CA Limited1810.06460.02287.88
ChainedSSL1790.061820.06-3.05
Plesk, Inc.1760.061840.06-5.71
CAcert Inc.1710.061630.063.42
OCC1650.061890.06-13.94
Apache HTTP Server1530.051490.051.22
Akamai1530.051700.06-11.28
Unizeto Sp. z o.o.1440.051290.0410.04
BlueHost.Com1440.051210.0417.31
Positive Software1410.051410.05-1.42
StartCom Ltd.1390.051280.047.05
Digi-Sign Limited1350.051320.040.82
NetLock Halozatbiztonsagi Kft.1290.041280.04-0.65
Trusted Secure Certificate Authority1220.041130.046.43
Internet Widgits Pty Ltd1120.041150.04-3.99
Ipswitch,Inc.1110.041200.04-8.82
RM1100.041200.04-9.64
NTT Communications Corporation1100.041000.038.43
GlobalSign Inc1100.041050.043.27
ICS_TREE1090.041130.04-4.91
Your Name Webhosting1030.03930.039.18
Digital Signature Trust Co.940.03970.03-4.47
Plesk Inc.910.03970.03-7.52
Deutsche Telekom AG910.031290.04-30.46
CNRS890.03880.03-0.30
CRU880.03930.03-6.72
Akamai Technologies Inc850.03570.0247.00
ICP-Brasil840.03820.030.98
IceWarp Software790.03760.032.47
Default Web Site720.02660.027.54
hosting710.02520.0234.60
FNMT700.02690.020.01
Thawte Certification690.02790.03-13.90
A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr GmbH650.02610.025.04
MULTICERT-CA640.02650.02-2.94
United Network Communications Co., Ltd.590.02590.02-1.42
TAIWAN-CA.COM590.02620.02-6.19
Sun Microsystems Inc590.02590.02-1.42
Japan Certification Services, Inc.590.02660.02-11.88
WebMoney Transfer570.02560.020.34
Sonera560.02550.020.37
Stunnel Developers Ltd550.02560.02-3.18
IceWarp Ltd.550.02480.0212.95
Betrusted Japan Co., Ltd.550.0200.00N/A
TBS INTERNET540.02410.0129.83
My Company Ltd540.02510.024.38
Unicert Brasil Certificadora530.02500.024.49
Temp Certificate!520.02510.020.51
New Dream Network, LLC.520.02490.024.61
XYZ Corporation510.02560.02-10.22
InterWorx500.02500.02-1.42
WOI-TBD450.0200.00N/A
Prvni certifikacni autorita a.s.450.02430.013.16
CsideNet450.02450.02-1.42
Equifax Secure Inc430.01490.02-13.49
Carnegie Mellon University420.01410.010.98
RegisterFly.com, inc.410.0100.00N/A
"PositiveSoftwareCorporation"410.01460.02-12.14
University of Maryland400.01360.019.53
SuSE Linux Web Server400.01400.01-1.42
NetArt390.0100.00N/A
S1 Corporation380.01380.01-1.42
Linkopings universitet380.0100.00N/A
HostGator380.01350.017.03
E-Telbank Sp. z o.o.380.01380.01-1.42
Etisalat370.01360.011.32

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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