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You are viewing an outdated report.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


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

CA May 2019
Count
May 2019
%
April 2019
Count
April 2019
%
Growth
%
COMODO CA Limited1,349,04424.471,309,70026.15-6.42
Let's Encrypt963,41317.47821,30116.406.58
DigiCert905,75516.43850,12116.97-3.20
GlobalSign nv-sa369,4696.70358,2587.15-6.30
GoDaddy.com, Inc.244,8454.44227,1304.53-2.06
cPanel, Inc.206,9223.75178,1543.565.53
Sectigo Limited186,3453.38122,3522.4438.37
Unknown156,0332.83137,5462.753.07
Amazon120,5672.19109,8742.19-0.30
Starfield Technologies, Inc.78,9951.4366,3581.328.16
Google Trust Services60,1851.0958,9411.18-7.23
Internet237,1820.6735,5800.71-5.05
Plesk36,8740.6730,6000.619.48
SomeOrganization36,1900.6631,7620.633.52
TERENA35,7190.6533,5650.67-3.31
ispgateway33,4670.6129,6500.592.55
Microsoft Corporation33,1510.6030,6470.61-1.72
none31,7340.5827,8510.563.52
Unizeto Technologies S.A.31,0940.5629,0100.58-2.62
GeoTrust Inc.28,8640.5227,9450.56-6.16
SecureCore28,2060.5121,8790.4417.13
Entrust, Inc.27,5240.5026,0250.52-3.91
Trustwave Holdings, Inc.25,3510.4623,0190.460.06
Parallels24,1520.4421,9690.44-0.12
Gandi24,0730.4422,9190.46-4.57
CloudFlare, Inc.20,1770.371,9830.04824.45
Odin18,9200.3416,7640.332.54
Gehirn Inc.18,5680.3413,4160.2725.74
home.pl S.A.16,6350.3015,0950.300.12
Apache HTTP Server14,9400.2714,7850.30-8.19
Network Solutions L.L.C.14,5570.2614,1070.28-6.25
QuoVadis Limited13,0050.2412,4960.25-5.44
DreamHost12,4320.239,1300.1823.71
Cybertrust Japan Co., Ltd.11,1920.2012,1850.24-16.55
Actalis S.p.A./0335852096711,0360.209,0970.1810.22
Internet Widgits Pty Ltd9,4580.178,9220.18-3.69
Webhosting8,9330.167,2680.1511.67
nazwa.pl sp. z o.o.8,3200.157,2360.144.47
SECOM Trust Systems CO.,LTD.7,7730.146,4990.138.67
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.6,7230.125,7870.125.55
Corporation Service Company6,2930.115,9140.12-3.32
Japan Registry Services Co., Ltd.6,2250.114,5080.0925.46
WebSupport, s.r.o.6,0140.115,2340.104.39
io.ua6,0120.115,9290.12-7.87
Trust Provider B.V.5,7540.104,9520.105.57
The Trustico Group Ltd5,5910.105,1320.10-1.02
TrustAsia Technologies, Inc.5,4110.104,3710.0912.47
StartCom Ltd.5,3040.105,3380.11-9.72
Hosting Ukraine LLC5,2690.104,6340.093.30
thawte, Inc.4,3280.084,2190.08-6.80
Nijimo, Inc.4,0800.073,9310.08-5.70
SH3,6150.072,9980.069.55
DOMENY.PL sp. z o.o3,5870.073,2130.061.43
GeoTrust, Inc.3,4680.063,4150.07-7.74
HydrantID (Avalanche Cloud Corporation)3,4640.063,3760.07-6.78
Pizza-Taxi.de GmbH / CA3,4180.063,3810.07-8.15
WEDOS Internet, a.s.3,4160.062,7860.0611.40
Acme Co3,2400.062,5140.0517.09
Default Company Ltd3,0530.062,6600.054.28
World4You Internet Services GmbH2,7190.052,1330.0415.82
KAGOYA-JAPAN2,6510.052,3250.053.59
Comodo Limited2,6210.052,3530.051.20
National Institute of Informatics2,5510.052,4050.05-3.63
Symantec Corporation2,5230.052,6630.05-13.92
XX2,4570.042,1570.043.49
Test Self SSL Company2,4490.042,1510.043.44
Rede Nacional de Ensino e Pesquisa - RNP2,2660.042,0750.04-0.78
TAIWAN-CA2,2600.042,1220.04-3.24
SwissSign AG2,2050.042,0440.04-1.99
T-Systems International GmbH2,1610.041,9820.04-0.94
Dreamcommerce S.A.2,0630.041,2960.0344.62
SSL.com1,9950.042,0670.04-12.31
www.sprinthost.ru1,9930.041,6790.037.85
Soluciones Corporativas IP, SL1,9880.041,5520.0316.38
KDDI Web Communications Inc.1,9070.032,2100.04-21.60
Mirohost1,6750.031,4690.033.60
WoSign CA Limited1,6290.031,5930.03-7.09
NetLock Kft.1,6290.031,4560.031.65
Buypass AS-9831633271,6140.031,4480.031.27
MyCompany1,5540.031,4550.03-2.96
EUNETIC GmbH1,5420.031,3960.030.36
Government of Korea1,5220.031,6450.03-15.94
AC Camerfirma S.A.1,4930.031,5210.03-10.82
Guardian Inc.1,4390.031,1480.0213.89
Verisign1,3890.031,2680.03-0.48
dhosting.pl Sp. z o.o.1,3170.021,1500.024.05
CertCenter AG1,2330.021,1430.02-1.99
UIC1,1710.021,1700.02-9.07
AffirmTrust1,1510.021,3190.03-20.72
Globe Hosting, Inc.1,0150.028620.026.98
OVH9520.028200.025.48
GMO CLOUD K.K.9150.027710.027.82
WoTrus CA Limited9110.027790.026.25
Comvive Servidores SL8730.027700.023.01
N/A7970.0100.00N/A
SSL Corporation7700.0100.00N/A
FASTVPS7680.0100.00N/A
Beijing Knownsec Information Technology Co., Ltd7670.017200.01-3.21
DHIMYOTIS7570.017120.01-3.40
Greenhost7530.0100.00N/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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