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You are viewing an outdated report.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


    
Certificate Authority Market Share Report
May 1st, 2023

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 April 2023
Count
April 2023
%
March 2023
Count
March 2023
%
Growth
%
Let's Encrypt1,193,31133.081,283,75534.61-4.42
Sectigo Limited450,94212.50450,17912.143.00
DigiCert296,1398.21305,2888.23-0.25
GlobalSign nv-sa220,0106.10219,7265.922.96
Unknown150,9764.19152,1174.102.06
Amazon134,5053.73140,4683.79-1.54
DigiCert, Inc.115,4063.20113,2163.054.82
Google Trust Services LLC111,1183.08110,2262.973.66
GoDaddy.com, Inc.97,2692.7098,9382.671.09
cPanel, Inc.68,2141.8969,9281.890.31
Plesk64,7761.8064,7051.742.94
SomeOrganization57,5061.5957,3651.553.08
Cloudflare, Inc.50,2571.3949,8021.343.77
ddos-guard40,9961.1439,5161.076.68
Unizeto Technologies S.A.26,4200.7326,4240.712.81
Internet Widgits Pty Ltd25,6570.7125,7520.692.45
GEANT Vereniging25,0480.6925,2720.681.92
TrustAsia Technologies, Inc.24,8660.6924,1280.655.97
GoGetSSL21,5900.6021,2760.574.35
SH21,3990.5921,1590.574.00
COMODO CA Limited19,0710.5318,5150.505.92
Soluciones Corporativas IP, SL17,6570.4917,5490.473.46
Japan Registry Services Co., Ltd.17,5370.4917,5750.472.61
Gandi15,6770.4315,6750.422.84
Apache HTTP Server15,5240.4315,5320.422.78
Starfield Technologies, Inc.15,1910.4215,5870.420.22
Internet214,7780.4115,0270.411.13
Parallels13,3200.3713,7810.37-0.61
ZeroSSL12,0920.3410,4450.2819.04
Odin10,5590.2911,2310.30-3.32
Beijing Knownsec Information Technology Co., Ltd10,2260.2810,0370.274.77
Microsoft Corporation9,9470.289,8870.273.45
Default Company Ltd9,8920.279,6500.265.41
Entrust, Inc.9,6040.279,8040.260.73
SECOM Trust Systems CO.,LTD.8,6010.248,6250.232.54
XX7,0390.207,2180.190.28
dhosting.pl Sp. z o.o.6,4020.186,2960.174.56
KAGOYA-JAPAN5,9690.176,0110.162.11
Unspecified5,4010.155,3170.144.45
Mirohost4,6990.134,6890.133.05
none4,6470.134,8150.13-0.76
Cybertrust Japan Co., Ltd.4,6440.134,6460.132.78
Beijing Xinchacha Credit Management Co., Ltd.4,4620.124,1540.1110.45
FASTVPS4,3440.124,2910.124.10
CloudFlare, Inc.4,1280.114,1530.112.21
WoTrus CA Limited3,9140.113,6370.1010.66
Alpiro s.r.o.3,8640.113,8830.102.33
GeoTrust Inc.3,8510.113,8980.111.59
Network Solutions L.L.C.3,6790.104,0910.11-7.53
Webgarden3,6610.103,6500.103.14
DivMulTech LLC3,5680.103,5620.103.00
Hotel.cz3,3080.093,3070.092.86
DOMENY.PL sp. z o.o3,2080.093,1730.093.96
My Company Ltd3,1670.093,1330.083.95
SSL Server3,1460.093,1460.082.83
Guardian Inc.3,0280.083,0310.082.73
home.pl S.A.3,0270.083,1950.09-2.58
SSL Corporation2,9520.082,8900.085.04
Digital Element2,6890.072,6900.072.79
Buypass AS-9831633272,5290.072,4270.077.15
FASTPANEL2,4720.072,4220.074.95
SmugMug2,3110.062,2930.063.64
cndns2,2420.062,2200.063.85
Acme Co2,2060.062,1250.066.75
TAIWAN-CA2,1860.062,1530.064.41
CentOS Web Panel2,0760.062,1030.061.51
Dattatec.com2,0030.061,9510.055.57
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.1,9730.052,0940.06-3.11
Actalis S.p.A.1,8440.051,8640.051.73
testexample1,8220.051,6980.0510.34
Rede Nacional de Ensino e Pesquisa - RNP1,8000.051,7540.055.53
Kloxo Next Generation1,7650.051,5540.0416.79
The Trustico Group Ltd1,6510.051,6020.045.97
Comodo Japan, Inc.1,5570.041,7360.05-7.77
ZONER Software, a.s.1,5350.041,5100.044.53
Trust Provider B.V.1,4300.041,4470.041.62
Skok.CZ1,3280.041,3170.043.69
MyCompany1,0900.031,0770.034.07
GeoTrust, Inc.1,0840.031,1520.03-3.24
RunCloud Sdn. Bhd.1,0750.031,0090.039.56
Corporation Service Company1,0100.031,0180.032.02
Bitrix9870.031,0460.03-2.97
TERENA9730.031,0330.03-3.14
Trustwave Holdings, Inc.9560.031,0300.03-4.56
N/A9430.039700.03-0.03
Zhejiang Huluwa Digital Certification Co., Ltd.9400.0300.00N/A
SecureCore9260.039140.024.18
Hoster9110.038890.025.37
Unnamed company8860.028750.024.12
NetLock Kft.8730.029500.03-5.51
GTranslate8640.028420.025.52
E-TUGRA EBG BILISIM TEKNOLOJILERI VE HIZMETLERI ANONIM SIRKETI8600.028610.022.71
Brainy8550.028580.022.47
Traffic7740.0200.00N/A
BiziNet Pty Ltd7620.027610.022.96
zzidc.com7610.027700.021.63
StartCom Ltd.7610.027510.024.20
QuoVadis Limited7530.027780.02-0.48
sslTrus7360.026970.028.58
Bitnami7270.027450.020.34

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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