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You are viewing an outdated report. The latest version of this report was published on March 1st, 2024


    
Certificate Authority Market Share Report
April 1st, 2007

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 2007
Count
March 2007
%
February 2007
Count
February 2007
%
Growth
%
Verisign78,80024.4477,99824.86-1.71
Equifax (Geotrust)69,15721.4566,86121.310.63
Thawte44,12713.6843,42313.84-1.14
Comodo Limited26,7988.3125,4298.112.52
Starfield Technologies, Inc.14,9934.6515,1714.84-3.85
Unknown7,5892.357,2882.321.30
DigiCert6,8282.126,2241.986.73
AddTrust AB4,4131.374,8151.53-10.84
Entrust.net4,0791.274,1721.33-4.88
Network Solutions L.L.C.3,4141.063,4041.09-2.43
SomeOrganization3,3201.033,2261.030.12
SWsoft, Inc.3,0340.942,9510.940.02
XRamp Security Services Inc2,2990.712,2240.710.57
GoDaddy.com, Inc.2,1030.654520.14352.64
Snake Oil, Ltd1,9180.591,9030.61-1.95
U.S. Government1,3930.431,3710.44-1.15
SECOM Trust.net1,1710.369450.3020.55
IPS Certification Authority s.l.1,1460.361,1110.350.35
Root CA1,0450.329920.322.48
TC TrustCenter for Security in Data Networks GmbH9780.309540.30-0.27
GlobalSign nv-sa9420.299000.291.83
Positive Software Corporation6330.206630.21-7.12
Comodo CA Limited6190.194440.1435.63
Earthlink Inc5720.185770.18-3.56
Cybertrust5480.174380.1421.72
Betrusted Japan Co.,Ltd.5210.165680.18-10.76
Secure Business Services, Inc.4750.153870.1219.41
ispgateway3960.123890.12-0.96
T-Systems Enterprise Services GmbH3610.113510.110.06
GTE Corporation3070.103000.10-0.44
Comodo Japan Inc.2770.092880.09-6.43
Firstserver, Inc.2660.082510.083.10
CAcert Inc.2400.072200.076.13
Betrusted Japan Co., Ltd.2380.071640.0541.18
OCC2250.072100.074.24
Unizeto Sp. z o.o.2100.071580.0529.31
TDC2020.061970.06-0.24
ChainedSSL1920.061950.06-4.21
BlueHost.Com1790.061700.052.44
Kubota Systems Inc.1740.052160.07-21.63
StartCom Ltd.1720.051660.050.80
Akamai Technologies Inc1720.051530.059.37
Digi-Sign Limited1700.051630.051.46
Plesk, Inc.1590.051740.06-11.10
Trusted Secure Certificate Authority1450.041340.045.27
NetLock Halozatbiztonsagi Kft.1450.041460.05-3.38
Apache HTTP Server1440.041440.05-2.71
Your Name Webhosting1390.041270.046.48
RegisterFly.com, inc.1320.041100.0416.74
RM1290.041270.04-1.18
Positive Software1270.041320.04-6.40
NTT Communications Corporation1250.041250.04-2.71
ICS_TREE1090.031110.04-4.47
Akamai1070.031170.04-11.03
GlobalSign Inc1060.031050.03-1.79
Internet Widgits Pty Ltd1050.03990.033.18
FreeSSL1030.031240.04-19.19
CNRS990.03970.03-0.71
Digital Signature Trust Co.960.03970.03-3.72
hosting940.03880.033.92
Ipswitch,Inc.920.031000.03-10.50
ICP-Brasil920.03880.031.71
Default Web Site860.03880.03-4.92
CRU850.03890.03-7.09
FNMT810.03720.029.45
TBS INTERNET800.02730.026.62
Sonera790.02680.0213.02
IceWarp Software770.02820.03-8.65
Plesk Inc.750.02840.03-13.14
A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr GmbH720.02690.021.52
Thawte Certification700.02750.02-9.20
MULTICERT-CA700.02650.024.77
Sun Microsystems Inc680.02660.020.23
Unicert Brasil Certificadora640.02620.020.42
WebMoney Transfer630.02620.02-1.14
New Dream Network, LLC.630.02570.027.53
United Network Communications Co., Ltd.590.02590.02-2.71
My Company Ltd580.02600.02-5.96
Japan Certification Services, Inc.570.02590.02-6.01
InterWorx540.02520.021.03
XYZ Corporation510.02520.02-4.58
Temp Certificate!510.02500.02-0.77
Firstserver, Inc500.0200.00N/A
Wytwornia Telewizyjno-Filmowa "Alfa"470.01420.018.87
Linkopings universitet470.01460.01-0.60
TAIWAN-CA.COM460.01490.02-8.67
CsideNet460.01530.02-15.56
p1atin.de450.01450.01-2.71
TAIWAN-CA.COM Inc.450.0100.00N/A
WOI TBD LUW440.01440.01-2.71
University of Maryland430.01410.012.03
IceWarp Ltd.430.01430.01-2.71
SuSE Linux Web Server420.01460.01-11.17
Prvni certifikacni autorita a.s.420.01410.01-0.34
Carnegie Mellon University420.01400.012.15
AS Sertifitseerimiskeskus420.0100.00N/A
University of Washington410.01390.012.28
Postecom S.p.A.410.01390.012.28
Stunnel Developers Ltd400.01500.02-22.17
Cisco Systems, Inc.400.01390.01-0.22

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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