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Certificate Authority Market Share Report
September 1st, 2020

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 August 2020
Count
August 2020
%
July 2020
Count
July 2020
%
Growth
%
Let's Encrypt2,543,65123.002,453,70222.830.75
DigiCert1,532,62613.861,495,23913.91-0.38
Sectigo Limited1,340,02412.121,266,60911.782.82
COMODO CA Limited1,145,14910.351,170,45910.89-4.91
cPanel, Inc.634,1475.73608,5355.661.28
GlobalSign nv-sa570,5615.16559,7725.21-0.94
Unknown405,4723.67388,6343.621.40
GoDaddy.com, Inc.401,4643.63399,8363.72-2.41
Amazon221,5492.00223,0972.08-3.48
Starfield Technologies, Inc.220,5201.99210,5301.961.80
CloudFlare, Inc.136,1401.23140,9191.31-6.10
SecureCore107,8590.98102,9640.961.81
Plesk101,7500.9299,4960.93-0.61
SomeOrganization83,5970.7681,0320.750.27
Gehirn Inc.83,2600.7579,2770.742.07
Google Trust Services82,6120.7581,6950.76-1.72
none81,2270.7378,2420.730.90
Unizeto Technologies S.A.75,9390.6973,4180.680.53
ispgateway67,3080.6165,7870.61-0.56
Microsoft Corporation64,0340.5862,8540.58-0.98
Internet254,3360.4953,7750.50-1.79
DreamHost54,1840.4951,0280.473.20
TERENA47,3190.4347,6320.44-3.45
home.pl S.A.40,7870.3739,2990.370.87
Odin40,1140.3639,3890.37-1.02
Parallels39,4190.3639,1870.36-2.23
Entrust, Inc.37,9580.3437,2940.35-1.08
Gandi35,1450.3234,4290.32-0.79
Trustwave Holdings, Inc.34,1020.3133,9410.32-2.35
Cloudflare, Inc.29,0120.2615,0420.1487.46
Webhosting28,0890.2527,0120.251.07
GoGetSSL26,2160.2423,5510.228.19
GeoTrust Inc.25,8770.2328,4410.26-11.57
Actalis S.p.A./0335852096724,6860.2236,9690.34-35.10
TrustAsia Technologies, Inc.21,1510.1919,2150.186.98
Cybertrust Japan Co., Ltd.20,6440.1918,0300.1711.28
Japan Registry Services Co., Ltd.20,0230.1818,9390.182.75
QuoVadis Limited18,8390.1718,5390.17-1.24
Internet Widgits Pty Ltd17,7010.1617,4500.16-1.41
Apache HTTP Server16,7060.1516,6620.16-2.55
SECOM Trust Systems CO.,LTD.16,3090.1516,4100.15-3.41
Network Solutions L.L.C.15,2260.1415,3210.14-3.41
WebSupport, s.r.o.15,1290.1414,5660.140.95
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.14,8790.1314,6150.14-1.05
Actalis S.p.A.13,9990.1300.00N/A
Acme Co13,7330.1213,1850.121.23
Soluciones Corporativas IP, SL12,6690.1112,1560.111.29
Trust Provider B.V.11,9220.1111,5890.11-0.02
Default Company Ltd11,4920.1010,9330.102.16
SH11,4200.1010,8740.102.07
GEANT Vereniging10,8300.109,2410.0913.90
WEDOS Internet, a.s.10,8210.1010,3390.101.72
World4You Internet Services GmbH10,6280.1010,3720.10-0.41
Corporation Service Company9,3600.089,2630.09-1.79
DOMENY.PL sp. z o.o8,6660.088,4490.08-0.31
Test Self SSL Company7,8970.077,4580.072.91
ZeroSSL7,7300.075,6640.0532.64
KAGOYA-JAPAN7,6440.077,2750.072.12
www.sprinthost.ru6,5190.066,1740.062.62
The Trustico Group Ltd6,3520.066,1110.061.02
Caddy Self-Signed5,5830.055,3560.051.31
FASTVPS5,5460.055,4390.05-0.90
Dreamcommerce S.A.4,7240.044,5950.04-0.08
XX4,6060.044,5200.04-0.96
TAIWAN-CA4,4400.044,2680.041.11
thawte, Inc.4,2870.044,3040.04-3.19
Unspecified4,2240.043,8620.046.30
T-Systems International GmbH4,1590.043,9190.043.14
Mirohost4,1310.043,9510.041.62
Comodo Limited4,0920.043,9480.040.74
GeoTrust, Inc.4,0730.043,9820.04-0.59
National Institute of Informatics3,9880.043,9590.04-2.10
SwissSign AG3,8980.043,8310.04-1.11
o2switch3,8820.043,5870.035.18
SSL Corporation3,7740.033,5610.033.00
dhosting.pl Sp. z o.o.3,6690.033,5250.031.16
HydrantID (Avalanche Cloud Corporation)3,4930.033,6000.03-5.70
Buypass AS-9831633273,4740.033,4120.03-1.04
nazwa.pl sp. z o.o.3,3270.033,0430.036.26
GMO CLOUD K.K.3,3210.033,1580.032.21
NetLock Kft.3,1110.032,9850.031.29
Basekit Ltd3,1030.032,8300.036.57
DealerInspire3,0610.032,9600.030.51
CentOS Web Panel3,0330.032,1830.0235.03
N/A3,0210.032,9600.03-0.81
Guardian Inc.2,9630.032,8930.03-0.46
Digital Element2,6850.0200.00N/A
ddos-guard2,6710.0200.00N/A
SSL Server2,6340.022,4900.022.81
unaone2,4760.022,4670.02-2.45
ONEsolution s.r.o.2,4360.022,3310.021.57
StartCom Ltd.2,4190.022,4560.02-4.27
Bitrix2,3470.022,2960.02-0.65
MyCompany2,3270.022,3200.02-2.52
Symantec Corporation2,2400.022,2300.02-2.37
WoTrus CA Limited2,2230.022,0960.023.08
Fasthosts Internet Limited2,1490.022,0970.02-0.40
OVH2,1250.022,0150.022.50
EUNETIC GmbH2,1100.022,0680.02-0.83
Greenhost1,9890.021,9310.020.11

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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