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You are viewing an outdated report.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


    
Certificate Authority Market Share Report
November 1st, 2021

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.

Amazon CA Certificate Historical Market Share Graph

CA October 2021
Count
October 2021
%
September 2021
Count
September 2021
%
Growth
%
Let's Encrypt1,544,60428.451,523,63328.200.89
Sectigo Limited1,233,16122.721,247,23223.09-1.61
DigiCert577,92110.65578,85110.72-0.64
GlobalSign nv-sa257,1854.74255,5714.730.15
Unknown195,4453.60200,1053.70-2.80
GoDaddy.com, Inc.167,9573.09177,8713.29-6.03
Amazon163,9983.02159,1922.952.52
cPanel, Inc.140,3692.59136,1612.522.59
Google Trust Services LLC96,4841.7892,0691.704.29
Plesk81,8741.5180,5381.491.17
SomeOrganization75,8581.4074,3751.381.50
Starfield Technologies, Inc.59,6731.1059,5751.10-0.32
COMODO CA Limited54,8651.0158,0821.08-6.00
Cloudflare, Inc.52,5320.9744,4870.8217.51
Actalis S.p.A.47,6740.8843,0380.8010.24
Unizeto Technologies S.A.46,3350.8545,7350.850.82
Parallels27,0520.5027,2640.50-1.26
TrustAsia Technologies, Inc.24,8680.4622,1640.4111.66
GEANT Vereniging23,9800.4422,7330.424.98
GoGetSSL23,2170.4328,9570.54-20.21
Internet222,0500.4122,7150.42-3.40
Odin21,3470.3921,4790.40-1.09
Gandi20,8900.3820,8420.39-0.25
Japan Registry Services Co., Ltd.19,2530.3519,1650.35-0.03
ddos-guard18,6930.3417,5780.335.83
SH17,2240.3215,9750.307.30
Soluciones Corporativas IP, SL16,3960.3016,1440.301.07
Cybertrust Japan Co., Ltd.15,9450.2915,8120.290.35
Apache HTTP Server15,9270.2915,9350.29-0.53
SECOM Trust Systems CO.,LTD.13,9410.2613,9170.26-0.31
Entrust, Inc.13,8950.2614,0940.26-1.89
Test Self SSL Company12,3860.2312,0840.222.00
Internet Widgits Pty Ltd11,9580.2212,3440.23-3.60
TERENA11,5000.2112,7700.24-10.38
Microsoft Corporation10,2870.1910,2790.19-0.41
Default Company Ltd10,1710.1910,1690.19-0.46
ZeroSSL9,6730.186,9210.1339.09
none9,6000.189,9240.18-3.73
CloudFlare, Inc.8,6840.164,2450.08103.58
GeoTrust Inc.8,4020.158,5830.16-2.58
FASTVPS7,4850.147,3420.141.45
KAGOYA-JAPAN6,7780.126,7550.13-0.14
Corporation Service Company6,6620.125,3490.1023.94
XX6,4740.126,2560.122.98
Beijing Knownsec Information Technology Co., Ltd6,2000.114,1380.0849.11
QuoVadis Limited6,1410.116,4210.12-4.82
Network Solutions L.L.C.5,7590.115,9010.11-2.88
DOMENY.PL sp. z o.o5,7350.115,6940.110.23
Trust Provider B.V.5,6320.105,6570.10-0.92
WoTrus CA Limited5,5440.102,9700.0585.76
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.5,5180.105,7560.11-4.60
dhosting.pl Sp. z o.o.5,2430.105,1460.101.39
Unspecified4,9480.094,8950.090.59
home.pl S.A.4,8290.094,7290.091.62
Mirohost4,6890.094,6780.09-0.25
Buypass AS-9831633273,1230.063,1130.06-0.16
testexample3,1190.061,8420.0368.51
SSL Server3,0700.063,0450.060.33
Guardian Inc.3,0450.063,0360.06-0.19
SSL Corporation2,8300.052,7520.052.34
DivMulTech LLC2,7420.052,5450.057.22
Digital Element2,6900.052,6890.05-0.45
CentOS Web Panel2,6720.053,0820.06-13.72
Webgarden2,6390.052,5340.053.64
My Company Ltd2,2860.042,1800.044.36
GeoTrust, Inc.2,2260.042,2290.04-0.62
nazwa.pl sp. z o.o.2,2210.042,2040.040.28
SmugMug2,1590.042,1370.040.54
TAIWAN-CA2,0520.042,0950.04-2.53
Bitrix2,0220.042,0690.04-2.74
The Trustico Group Ltd1,7530.031,7860.03-2.32
Alpiro s.r.o.1,7330.031,6110.037.05
cndns1,6940.031,6510.032.11
MyCompany1,6740.031,6180.032.96
StartCom Ltd.1,6200.031,5750.032.36
SecureCore1,5210.031,6120.03-6.10
thawte, Inc.1,5190.031,6470.03-8.22
OVH1,4830.031,4770.03-0.08
Trustwave Holdings, Inc.1,4780.031,5360.03-4.24
ZONER Software, a.s.1,4550.031,4260.031.54
Skok.CZ1,4160.031,4150.03-0.41
N/A1,3820.031,3480.022.03
Dattatec.com1,3690.031,3240.022.90
Comodo Japan, Inc.1,3440.021,3300.020.56
NetLock Kft.1,2260.021,3180.02-7.43
Beijing Xinchacha Credit Management Co., Ltd.1,2250.021,1140.029.43
Bitnami1,1810.021,1920.02-1.40
CA1,1260.021,1160.020.41
Acme Co1,1120.021,1280.02-1.89
Yandex LLC1,0050.029120.029.66
EUNETIC GmbH9950.021,0080.02-1.77
QuoVadis Trustlink B.V.9660.021,0460.02-8.09
Symantec Corporation9590.029790.02-2.52
SwissSign AG8990.021,5190.03-41.10
SWsoft, Inc.8560.028460.020.69
FNMT-RCM8530.0200.00N/A
Comodo Limited8120.018240.02-1.93
FASTPANEL7760.0100.00N/A
KAGOYA Japan Ltd7340.017620.01-4.14
T-Systems International GmbH7310.0100.00N/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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