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Certificate Authority Market Share Report
May 1st, 2024

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 2024
Count
April 2024
%
March 2024
Count
March 2024
%
Growth
%
Let's Encrypt2,777,47832.982,491,60032.312.09
Sectigo Limited1,418,81616.851,273,36616.512.04
DigiCert749,2668.90704,9219.14-2.66
Unknown456,4695.42433,1835.62-3.50
GlobalSign nv-sa404,0294.80383,8904.98-3.62
cPanel, Inc.305,9513.63296,3063.84-5.44
GoDaddy.com, Inc.195,2162.32179,5682.33-0.44
Amazon180,9372.15174,7082.27-5.16
Cloudflare, Inc.156,0781.85154,2582.00-7.34
SecureCore119,6571.42103,0391.346.35
Starfield Technologies, Inc.118,0401.40104,0551.353.89
Plesk87,4621.0483,2891.08-3.83
Unizeto Technologies S.A.81,7000.9771,2540.925.00
New Dream Network LLC dba Dreamhost80,4490.9668,9980.896.78
Gehirn Inc.75,9650.9065,5230.856.17
SomeOrganization65,0830.7763,6400.83-6.34
GEANT Vereniging50,2770.6046,7700.61-1.55
ddos-guard50,0370.5949,0860.64-6.65
TrustAsia Technologies, Inc.41,6700.4935,1260.468.64
none40,1600.4835,3830.463.94
Microsoft Corporation38,2130.4537,5220.49-6.73
ispgateway37,1420.4432,1790.425.70
Internet Widgits Pty Ltd35,6590.4234,6920.45-5.87
ZeroSSL33,1060.3930,1990.390.39
GoGetSSL30,9530.3727,5120.363.03
Japan Registry Services Co., Ltd.29,9570.3628,3020.37-3.07
Internet228,3210.3426,4210.34-1.84
home.pl S.A.27,2960.3224,1290.313.60
DigiCert, Inc.25,4730.3026,3560.34-11.49
Google Trust Services LLC24,6150.2919,2510.2517.10
Actalis S.p.A.24,3260.2920,7400.277.41
Default Company Ltd22,9120.2720,5780.271.97
Gandi22,6660.2721,6300.28-4.03
SH22,1370.2621,9880.29-7.80
COMODO CA Limited21,7990.2620,7770.27-3.92
Acme Co21,3890.2519,4620.250.65
Soluciones Corporativas IP, SL20,1440.2419,6260.25-6.00
Entrust, Inc.16,4780.2015,5060.20-2.68
AfterMarket.pl16,2250.1914,5680.192.00
Apache HTTP Server15,8160.1915,7590.20-8.09
Parallels15,8010.1915,0010.19-3.54
SECOM Trust Systems CO.,LTD.14,7930.1814,2150.18-4.70
Unspecified14,7220.1713,4630.170.14
nazwa.pl sp. z o.o.13,6080.1611,6230.157.22
Beijing Knownsec Information Technology Co., Ltd12,5730.1512,6750.16-9.16
Odin11,7930.1411,5420.15-6.43
World4You Internet Services GmbH10,1670.128,3250.1111.84
Cybertrust Japan Co., Ltd.9,7520.129,0590.12-1.42
Beijing Xinchacha Credit Management Co., Ltd.9,0990.118,4960.11-1.92
Test Self SSL Company9,0360.117,7290.107.07
KAGOYA-JAPAN9,0340.118,6070.11-3.88
XX8,3600.108,2160.11-6.82
Alpiro s.r.o.8,3550.107,7580.10-1.37
FASTPANEL7,1850.096,7490.09-2.51
dhosting.pl Sp. z o.o.7,1700.097,0620.09-7.02
Basekit Ltd7,0840.085,8890.0810.16
GeoTrust Inc.5,9190.075,5180.07-1.77
www.sprinthost.ru5,7390.074,8810.067.68
WoTrus CA Limited5,7110.075,4260.07-3.61
Baidu, Inc.5,6060.075,5640.07-7.73
The Trustico Group Ltd5,4950.074,9670.061.31
Network Solutions L.L.C.5,3520.065,0340.07-2.64
SSL Corporation5,1640.064,7740.06-0.94
CloudFlare, Inc.5,0920.064,9630.06-6.04
TAIWAN-CA5,0640.064,6240.060.29
FASTVPS4,7910.064,8870.06-10.22
Trust Provider B.V.4,4920.054,5960.06-10.49
Certainly4,4770.053,9560.053.64
WEDOS Internet, a.s.4,3980.055,0850.07-20.79
My Company Ltd4,2890.054,1330.05-4.96
DivMulTech LLC3,5900.043,5890.05-8.40
Microsoft3,5380.0400.00N/A
Rede Nacional de Ensino e Pesquisa - RNP3,4810.042,9150.049.36
CentOS Web Panel3,2320.042,9050.041.89
GMO CLOUD K.K.3,1800.042,7370.046.40
SSL Server3,1450.043,1440.04-8.39
Guardian Inc.2,9180.032,9360.04-8.98
sslTrus2,7600.032,2320.0313.24
Zhejiang Huluwa Digital Certification Co., Ltd.2,7200.033,1060.04-19.80
Dreamcommerce S.A.2,6930.032,5510.03-3.32
Hestia Control Panel2,4760.032,2110.032.55
ZONER Software, a.s.2,3760.032,2410.03-2.90
Organization2,3760.032,5320.03-14.06
Dattatec.com2,3670.032,3310.03-7.01
Deutsche Telekom Security GmbH2,3050.032,0540.032.77
x2,2700.032,0110.033.37
Buypass AS-9831633272,2640.032,2470.03-7.73
Comodo Japan, Inc.2,1260.032,0700.03-5.94
Skok.CZ2,1100.031,9610.03-1.46
cyber_Folks S.A.1,9080.021,6080.028.66
Bitrix1,8560.021,7090.02-0.54
Webador1,8430.021,6230.023.99
DNSPod, Inc.1,8370.021,6470.022.14
WEDOS GLOBAL1,7530.0200.00N/A
LiteSpeedCommunity1,7410.0200.00N/A
MyCompany1,5720.021,5450.02-6.82
QuoVadis Limited1,5510.021,4870.02-4.48
SpinupWP1,5490.021,3840.022.50
o2switch1,5360.0200.00N/A
Greenhost1,5250.0200.00N/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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