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You are viewing an outdated report.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


    
Certificate Authority Market Share Report
October 1st, 2019

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 September 2019
Count
September 2019
%
August 2019
Count
August 2019
%
Growth
%
Let's Encrypt1,519,77720.021,400,84119.612.11
COMODO CA Limited1,485,87319.581,466,91220.53-4.66
DigiCert1,165,84915.361,103,70615.45-0.58
GlobalSign nv-sa465,2016.13443,9226.21-1.37
Sectigo Limited451,2215.94386,8335.419.79
cPanel, Inc.349,8284.61318,3524.463.43
GoDaddy.com, Inc.305,3764.02300,0284.20-4.20
Unknown234,3113.09217,7383.051.28
Amazon150,6831.99142,6362.00-0.57
Starfield Technologies, Inc.127,7431.68109,9851.549.32
CloudFlare, Inc.70,9490.9365,1120.912.56
Google Trust Services66,2370.8764,8920.91-3.93
Plesk63,6580.8457,1080.804.92
SecureCore56,0020.7449,8100.705.82
SomeOrganization52,9590.7049,7060.700.28
none50,1470.6645,8460.642.95
ispgateway48,9600.6545,6030.641.05
Internet245,2390.6043,8350.61-2.87
TERENA43,7690.5841,9910.59-1.89
Unizeto Technologies S.A.43,1460.5741,4840.58-2.11
Gehirn Inc.41,1780.5436,1470.517.22
GeoTrust Inc.35,0010.4634,2060.48-3.69
Trustwave Holdings, Inc.34,5960.4632,6650.46-0.32
Parallels33,1650.4431,5030.44-0.91
Entrust, Inc.32,9730.4331,9600.45-2.90
Gandi29,5840.3928,5430.40-2.45
Odin28,5280.3826,4430.371.54
DreamHost25,9180.3422,9100.326.48
home.pl S.A.23,7070.3122,0880.311.02
Microsoft Corporation20,7730.2720,5500.29-4.86
Actalis S.p.A./0335852096720,3630.2718,2330.265.12
Network Solutions L.L.C.16,1470.2116,5550.23-8.20
Cybertrust Japan Co., Ltd.15,8610.2115,2960.21-2.40
Webhosting15,7440.2114,2140.204.25
Apache HTTP Server15,5450.2015,4050.22-5.02
SECOM Trust Systems CO.,LTD.15,5260.2014,0650.203.90
QuoVadis Limited14,8540.2014,7090.21-4.95
nazwa.pl sp. z o.o.13,3990.1812,3300.172.28
Internet Widgits Pty Ltd13,3510.1812,4280.171.11
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.11,8680.1611,4140.16-2.14
Caddy Self-Signed10,0320.139,9440.14-5.05
WebSupport, s.r.o.9,6130.138,8070.122.73
Japan Registry Services Co., Ltd.8,9270.128,2410.121.96
TrustAsia Technologies, Inc.8,8710.128,3100.120.47
Trust Provider B.V.8,1080.117,5290.111.36
Corporation Service Company7,9410.107,3390.101.84
Hosting Ukraine LLC7,5590.107,0640.100.72
io.ua6,3130.086,2250.09-4.55
SH6,1790.085,6430.083.06
WEDOS Internet, a.s.5,8920.085,3270.074.10
StartCom Ltd.5,5940.075,5790.08-5.63
World4You Internet Services GmbH5,5140.074,8780.076.39
Acme Co5,2390.074,7460.073.90
thawte, Inc.4,9210.064,8280.07-4.07
The Trustico Group Ltd4,8830.065,5860.08-17.72
Default Company Ltd4,8830.064,5390.061.25
KAGOYA-JAPAN4,1700.053,8400.052.21
GeoTrust, Inc.3,9740.053,8780.05-3.55
Test Self SSL Company3,9650.053,6230.053.00
Comodo Limited3,6640.053,5460.05-2.75
XX3,6300.053,3480.052.05
Pizza-Taxi.de GmbH / CA3,5900.053,5600.05-5.09
HydrantID (Avalanche Cloud Corporation)3,3810.043,5540.05-10.46
www.sprinthost.ru3,2450.042,9710.042.80
DOMENY.PL sp. z o.o3,2190.042,9820.041.60
Dreamcommerce S.A.3,1970.043,0380.04-0.95
National Institute of Informatics3,1830.043,0380.04-1.39
SwissSign AG3,1820.043,0150.04-0.67
GoGetSSL2,9650.041,7250.0261.78
TAIWAN-CA2,9350.042,8180.04-1.97
Rede Nacional de Ensino e Pesquisa - RNP2,9170.042,7920.04-1.67
T-Systems International GmbH2,7860.042,6720.04-1.86
Mirohost2,5910.032,4320.030.27
Symantec Corporation2,4360.032,4980.03-8.22
Buypass AS-9831633272,3590.032,2010.030.88
Verisign2,1490.031,9710.032.62
NetLock Kft.2,1380.032,0360.03-1.16
WoSign CA Limited2,1300.032,1100.03-4.99
Guardian Inc.2,0580.031,9950.03-2.91
SSL.com1,9400.031,9440.03-6.07
MyCompany1,8580.021,8160.03-3.70
EUNETIC GmbH1,8380.021,9660.03-12.01
dhosting.pl Sp. z o.o.1,8300.021,7070.020.90
SSL Server1,8030.021,5470.029.70
Nijimo, Inc.1,7960.021,9240.03-12.14
CertCenter AG1,7920.021,6900.02-0.20
AC Camerfirma S.A.1,7270.021,7250.02-5.77
GMO CLOUD K.K.1,6640.021,4880.025.25
DealerInspire1,6290.021,4170.028.20
Soluciones Corporativas IP, SL1,5260.021,4130.021.65
OVH1,5070.021,4150.020.24
o2switch1,4790.021,2900.027.91
SSL Corporation1,4510.021,2870.026.11
WoTrus CA Limited1,4420.021,3070.023.84
N/A1,4230.021,3190.021.54
Globe Hosting, Inc.1,4160.021,3110.021.66
Comvive Servidores SL1,3660.021,2390.023.77
Fasthosts Internet Limited1,3250.021,1890.024.89
ONEsolution s.r.o.1,2700.0200.00N/A
Basekit Ltd1,2590.0200.00N/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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