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You are viewing an outdated report. The latest version of this report was published on September 1st, 2018


    
Certificate Authority Market Share Report
October 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 only uses the issuer Organization Name to uniquely identify the issuing CA.

CA September 2017
Count
September 2017
%
August 2017
Count
August 2017
%
Growth
%
DigiCert4,979,84559.934,156,14056.665.77
GoDaddy.com, Inc.728,8108.77709,1569.67-9.28
COMODO CA Limited642,8367.74607,0568.28-6.52
GeoTrust Inc.435,7135.24425,8475.81-9.68
GlobalSign nv-sa295,4853.56281,3813.84-7.30
Let's Encrypt212,0812.55181,4992.473.15
Symantec Corporation126,7441.53126,2511.72-11.38
Gandi97,7781.1896,8471.32-10.88
thawte, Inc.75,5130.9174,2681.01-10.24
Unknown55,2460.6648,4630.660.63
cPanel, Inc.55,0800.6646,6590.644.21
Amazon51,9210.6245,7520.620.18
Starfield Technologies, Inc.50,9020.6149,2300.67-8.73
Microsoft Corporation39,1880.4738,1340.52-9.28
Google Inc31,6140.3828,0130.38-0.38
Internet229,4660.3530,2790.41-14.10
TERENA27,1370.3326,3950.36-9.24
Entrust, Inc.23,7600.2923,4670.32-10.62
Parallels19,7540.2418,8910.26-7.69
Network Solutions L.L.C.19,4980.2319,6510.27-12.41
Trustwave Holdings, Inc.17,4310.2116,6310.23-7.48
Unizeto Technologies S.A.15,4750.1914,0560.19-2.81
SomeOrganization15,1340.1814,3460.20-6.88
none13,7970.1712,3670.17-1.52
StartCom Ltd.11,5180.1418,4820.25-44.99
QuoVadis Limited9,4590.119,2800.13-10.02
DreamHost8,9320.118,0990.11-2.65
NN.RU8,8820.118,8820.12-11.72
Odin8,4540.107,8790.11-5.28
GeoTrust, Inc.8,3010.108,6010.12-14.80
SecureCore7,8290.096,7950.091.71
Cybertrust Japan Co., Ltd.7,7200.097,4390.10-8.39
home.pl S.A.6,3790.085,9450.08-5.28
Plesk5,5880.074,6020.067.19
SSL.com5,5660.074,6940.064.67
Internet Widgits Pty Ltd5,2980.064,7920.07-2.40
Hostpoint AG5,0660.0600.00N/A
nazwa.pl sp. z o.o.4,1510.053,8600.05-5.07
ispgateway3,6160.043,5180.05-9.27
Comodo Limited3,5300.043,6130.05-13.75
SECOM Trust Systems CO.,LTD.3,4010.043,3960.05-11.59
io.ua3,0960.042,6600.042.74
CloudFlare, Inc.3,0560.042,8130.04-4.10
Corporation Service Company3,0540.042,9430.04-8.40
KDDI Web Communications Inc.2,8510.032,7660.04-9.01
Trust Provider B.V.2,7190.032,5140.03-4.53
Pizza-Taxi.de GmbH / CA2,4960.032,2360.03-1.46
National Institute of Informatics2,2030.032,1260.03-8.53
Verisign2,1130.032,7400.04-31.92
Thawte, Inc.2,1030.032,2430.03-17.23
Government of Korea2,1030.032,0620.03-9.97
WoSign CA Limited1,9940.022,0250.03-13.08
WebSupport, s.r.o.1,9920.021,6950.023.74
Actalis S.p.A./033585209671,9300.021,5620.029.07
T-Systems International GmbH1,6950.021,7090.02-12.45
TAIWAN-CA1,6450.021,4800.02-1.88
DOMENY.PL sp. z o.o1,6030.021,5770.02-10.27
Hosting Ukraine LLC1,5490.021,3020.025.02
Equifax (Geotrust)1,4710.021,5500.02-16.22
Default Company Ltd1,3560.021,1100.027.84
Rede Nacional de Ensino e Pesquisa - RNP1,3180.021,2570.02-7.44
KEYNECTIS1,2930.021,2590.02-9.34
SwissSign AG1,2880.021,2580.02-9.62
EUNETIC GmbH1,2150.011,1940.02-10.17
AlphaSSL1,1800.011,2000.02-13.20
UIC1,1700.011,1680.02-11.57
Japan Registry Services Co., Ltd.1,1050.019930.01-1.77
U.S. Government1,0700.011,0730.01-11.97
NetLock Kft.1,0680.011,0400.01-9.35
Webhosting1,0120.017900.0113.08
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.1,0070.018590.013.48
AC Camerfirma S.A.9750.019360.01-8.05
Dreamcommerce S.A.9480.019000.01-7.02
Test Self SSL Company8510.017180.014.63
Nijimo, Inc.8350.016970.015.75
WEDOS Internet, a.s.7990.016760.014.34
Globe Hosting, Inc.7720.017220.01-5.61
XX7560.016320.015.60
Volusion, Inc.7460.018070.01-18.40
CAcert Inc.6570.016570.01-11.72
TBS INTERNET6460.016400.01-10.90
Buypass AS-9831633276440.016140.01-7.41
Trend Micro Inc6420.016920.01-18.10
Intermediate Certificate6190.016020.01-9.23
FNMT-RCM6180.016220.01-12.29
SH6050.015010.016.60
Zimbra Collaboration Server5900.015840.01-10.82
Apache HTTP Server5580.014970.01-0.89
ACCV5320.015260.01-10.72
AffirmTrust5260.014550.012.05
Root CA5230.015360.01-13.87
ICP-Brasil5000.014940.01-10.65
TrustAsia Technologies, Inc.4860.013930.019.16
HydrantID (Avalanche Cloud Corporation)4730.014770.01-12.47
Beijing Knownsec Information Technology Co., Ltd4690.014360.01-5.04
Thawte4460.014620.01-14.78
Internet Invest4440.0100.00N/A
Verizon Enterprise Solutions4350.014980.01-22.89
Comodo CA Limited4310.015050.01-24.66
Intexmedia4290.014290.01-11.72

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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