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You are viewing an outdated report. The latest version of this report was published on October 1st, 2021


    
Certificate Authority Market Share Report
July 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 doesn't verify the signatures of the certificates it finds, it only uses the issuer Organization Name to uniquely identify the issuing CA.

CA June 2021
Count
June 2021
%
May 2021
Count
May 2021
%
Growth
%
Let's Encrypt1,498,95127.753,247,91925.1610.26
Sectigo Limited1,231,60022.802,516,44219.5016.93
DigiCert605,37611.211,642,25612.72-11.93
GlobalSign nv-sa240,1904.45579,1154.49-0.91
Unknown201,3653.73492,2493.81-2.27
Amazon185,5603.43254,6931.9774.06
GoDaddy.com, Inc.177,3743.28411,6973.192.93
cPanel, Inc.143,0232.65786,2356.09-56.54
Plesk80,7121.49112,4390.8771.50
Google Trust Services78,0091.4487,6400.68112.66
SomeOrganization72,6751.35100,0580.7873.53
COMODO CA Limited69,5791.29168,0391.30-1.08
Starfield Technologies, Inc.59,1111.09235,6191.83-40.06
Unizeto Technologies S.A.44,1580.82268,1262.08-60.65
Actalis S.p.A.41,6170.7745,7940.35117.12
Cloudflare, Inc.38,5490.71227,9591.77-59.60
GoGetSSL27,7800.5145,1880.3546.87
Parallels27,5650.5136,4910.2880.47
Internet224,9990.4654,6520.429.28
Gandi23,0780.4338,1400.3044.56
Odin21,9590.4130,8200.2470.22
TrustAsia Technologies, Inc.21,3730.4035,2950.2744.67
GEANT Vereniging19,8150.3739,1250.3021.00
Japan Registry Services Co., Ltd.16,9940.3124,8910.1963.11
Apache HTTP Server15,9120.2916,5160.13130.17
Soluciones Corporativas IP, SL15,7270.2916,0440.12134.19
Cybertrust Japan Co., Ltd.15,4360.2922,0620.1767.16
TERENA15,3140.2825,1120.1945.69
ddos-guard14,9550.2812,3880.10188.42
SH14,9470.2814,4070.11147.86
Entrust, Inc.14,6890.2737,3840.29-6.13
SECOM Trust Systems CO.,LTD.13,8680.2620,4660.1661.89
Internet Widgits Pty Ltd12,3780.2318,3740.1460.95
Test Self SSL Company11,4780.2111,0320.09148.57
none10,7010.2097,8540.76-73.87
Default Company Ltd10,3080.1914,2810.1172.44
Microsoft Corporation10,2650.1964,1670.50-61.78
testexample9,4040.177,1130.06215.86
GeoTrust Inc.9,0710.1724,0600.19-9.93
Google Trust Services LLC7,1340.135,1820.04228.90
QuoVadis Limited7,0250.1314,4460.1116.18
KAGOYA-JAPAN6,8200.139,1320.0778.42
XX6,0240.116,6290.05117.11
DOMENY.PL sp. z o.o6,0200.1110,2580.0840.21
Network Solutions L.L.C.6,0110.1115,5840.12-7.85
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.5,9610.1115,5180.12-8.23
Corporation Service Company5,9330.118,6590.0763.70
WoTrus CA Limited5,3070.105,7970.04118.72
Trust Provider B.V.5,1610.107,9830.0654.45
dhosting.pl Sp. z o.o.4,9050.095,0950.04130.00
ZeroSSL4,8400.098,1370.0642.11
Unspecified4,7970.099,5210.0720.37
home.pl S.A.4,7670.0947,2400.37-75.89
Mirohost4,5900.084,5320.04141.97
CloudFlare, Inc.4,3850.088,7550.0719.66
Beijing Knownsec Information Technology Co., Ltd3,7570.073,5230.03154.78
CentOS Web Panel3,5800.073,5110.03143.61
Buypass AS-9831633273,0910.064,3910.0368.18
FASTVPS3,0450.062,7500.02164.54
Guardian Inc.3,0260.062,9880.02141.95
SSL Server2,9930.062,9640.02141.25
SSL Corporation2,8790.054,7610.0444.47
Digital Element2,6900.052,6890.02139.00
DivMulTech LLC2,4290.042,3980.02142.00
Bitrix2,4190.043,3540.0372.31
GeoTrust, Inc.2,4060.043,5830.0360.43
TAIWAN-CA2,3180.045,1590.047.35
Webgarden2,2650.0400.00N/A
nazwa.pl sp. z o.o.2,1930.043,1420.0266.75
SmugMug2,0920.0400.00N/A
My Company Ltd2,0280.0400.00N/A
thawte, Inc.1,9500.043,0690.0251.80
The Trustico Group Ltd1,9210.043,2360.0341.83
StartCom Ltd.1,6940.0300.00N/A
Alpiro s.r.o.1,6900.036,1730.05-34.59
Trustwave Holdings, Inc.1,6020.0330,5460.24-87.47
SecureCore1,5920.03134,5421.04-97.17
cndns1,5820.0300.00N/A
SwissSign AG1,5660.033,9210.03-4.58
MyCompany1,5530.032,4090.0254.02
OVH1,4980.0300.00N/A
N/A1,4150.033,0610.0210.44
AfterMarket.pl1,4150.0300.00N/A
Skok.CZ1,4130.0300.00N/A
ZONER Software, a.s.1,3810.0300.00N/A
NetLock Kft.1,3280.023,3010.03-3.89
Comodo Japan, Inc.1,2570.0200.00N/A
Bitnami1,2360.0200.00N/A
Acme Co1,2130.0219,0030.15-84.75
Dattatec.com1,2090.0200.00N/A
QuoVadis Trustlink B.V.1,2050.023,7280.03-22.78
EUNETIC GmbH1,1610.0200.00N/A
CA1,0830.0200.00N/A
Symantec Corporation1,0000.0200.00N/A
lxlabs9790.0200.00N/A
Chunghwa Telecom Co., Ltd.9780.0200.00N/A
SpinupWP9330.022,3760.02-6.19
Comodo Limited8840.0200.00N/A
SWsoft, Inc.8690.0200.00N/A
Yandex LLC8460.0200.00N/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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