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You are viewing an outdated report. The latest version of this report was published on June 1st, 2019


    
Certificate Authority Market Share Report
September 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 August 2017
Count
August 2017
%
July 2017
Count
July 2017
%
Growth
%
DigiCert4,156,14056.663,478,96853.106.70
GoDaddy.com, Inc.709,1569.67689,70510.53-8.17
COMODO CA Limited607,0568.28587,7718.97-7.75
GeoTrust Inc.425,8475.81421,8106.44-9.83
GlobalSign nv-sa281,3813.84272,0534.15-7.62
Let's Encrypt181,4992.47164,6662.51-1.55
Symantec Corporation126,2511.72124,8441.91-9.68
Gandi96,8471.3296,0431.47-9.94
thawte, Inc.74,2681.0172,0251.10-7.90
Starfield Technologies, Inc.49,2300.6747,6690.73-7.76
Unknown48,4630.6644,1300.67-1.92
cPanel, Inc.46,6590.6442,0660.64-0.93
Amazon45,7520.6243,5930.67-6.26
Microsoft Corporation38,1340.5237,2570.57-8.58
Internet230,2790.4129,8540.46-9.41
Google Inc28,0130.3825,9630.40-3.63
TERENA26,3950.3625,8090.39-8.66
Entrust, Inc.23,4670.3223,2040.35-9.67
Network Solutions L.L.C.19,6510.2719,5440.30-10.20
Parallels18,8910.2618,1720.28-7.15
StartCom Ltd.18,4820.2518,1430.28-9.02
Trustwave Holdings, Inc.16,6310.2315,9220.24-6.71
SomeOrganization14,3460.2013,7940.21-7.11
Unizeto Technologies S.A.14,0560.1913,3930.20-6.26
none12,3670.1711,3670.17-2.83
QuoVadis Limited9,2800.139,0980.14-8.90
NN.RU8,8820.127,0390.1112.70
GeoTrust, Inc.8,6010.128,8270.13-12.97
DreamHost8,0990.117,5780.12-4.54
Odin7,8790.117,2640.11-3.12
Cybertrust Japan Co., Ltd.7,4390.107,2410.11-8.24
SecureCore6,7950.096,1080.09-0.64
home.pl S.A.5,9450.084,4780.0718.57
Internet Widgits Pty Ltd4,7920.074,4550.07-3.93
SSL.com4,6940.064,1890.060.08
Plesk4,6020.064,1030.060.18
Hostpoint GmbH4,4570.064,0430.06-1.54
nazwa.pl sp. z o.o.3,8600.053,5130.05-1.86
Comodo Limited3,6130.053,5850.05-9.99
ispgateway3,5180.053,4480.05-8.87
SECOM Trust Systems CO.,LTD.3,3960.053,3850.05-10.39
Corporation Service Company2,9430.042,8680.04-8.35
CloudFlare, Inc.2,8130.042,6530.04-5.30
KDDI Web Communications Inc.2,7660.042,7130.04-8.94
Verisign2,7400.042,3650.043.48
io.ua2,6600.042,3990.04-0.97
Trust Provider B.V.2,5140.032,3330.04-3.76
Thawte, Inc.2,2430.032,3020.04-12.97
Pizza-Taxi.de GmbH / CA2,2360.032,0740.03-3.71
National Institute of Informatics2,1260.032,1270.03-10.73
Government of Korea2,0620.032,0180.03-8.74
WoSign CA Limited2,0250.032,0400.03-11.34
T-Systems International GmbH1,7090.021,6850.03-9.41
WebSupport, s.r.o.1,6950.021,5040.020.66
DOMENY.PL sp. z o.o1,5770.021,5210.02-7.40
Actalis S.p.A./033585209671,5620.021,3210.025.61
Equifax (Geotrust)1,5500.021,5470.02-10.51
TAIWAN-CA1,4800.021,5330.02-13.77
Hosting Ukraine LLC1,3020.021,1150.024.29
KEYNECTIS1,2590.021,2130.02-7.30
SwissSign AG1,2580.021,2450.02-9.75
Rede Nacional de Ensino e Pesquisa - RNP1,2570.021,1990.02-6.36
AlphaSSL1,2000.021,2160.02-11.86
EUNETIC GmbH1,1940.021,2110.02-11.94
UIC1,1680.021,1670.02-10.61
Default Company Ltd1,1100.029860.020.55
U.S. Government1,0730.011,0910.02-12.16
NetLock Kft.1,0400.011,0290.02-9.73
Japan Registry Services Co., Ltd.9930.019350.01-5.14
AC Camerfirma S.A.9360.018970.01-6.80
Dreamcommerce S.A.9000.018530.01-5.76
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.8590.017970.01-3.74
Volusion, Inc.8070.018500.01-15.20
Webhosting7900.016420.019.90
Globe Hosting, Inc.7220.017010.01-8.01
Test Self SSL Company7180.016190.013.60
Nijimo, Inc.6970.016280.01-0.87
Trend Micro Inc6920.017020.01-11.96
WEDOS Internet, a.s.6760.016160.01-1.99
CAcert Inc.6570.016600.01-11.09
TBS INTERNET6400.016330.01-9.70
XX6320.015720.01-1.32
FNMT-RCM6220.016260.01-11.26
Buypass AS-9831633276140.015980.01-8.30
Intermediate Certificate6020.015840.01-7.93
Zimbra Collaboration Server5840.015840.01-10.68
Root CA5360.015280.01-9.33
ACCV5260.015290.01-11.19
Comodo CA Limited5050.015030.01-10.33
SH5010.014120.018.61
Verizon Enterprise Solutions4980.015170.01-13.97
Apache HTTP Server4970.014630.01-4.13
ICP-Brasil4940.014980.01-11.40
HydrantID (Avalanche Cloud Corporation)4770.014690.01-9.16
Thawte4620.014700.01-12.21
AffirmTrust4550.014330.01-6.15
Beijing Knownsec Information Technology Co., Ltd4360.014280.01-9.02
Intexmedia4290.013790.011.10
TrustAsia Technologies, Inc.3930.0100.00N/A
Universitaet Stuttgart3850.0100.00N/A

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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