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You are viewing an outdated report.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


    
Certificate Authority Market Share Report
December 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 November 2020
Count
November 2020
%
October 2020
Count
October 2020
%
Growth
%
Let's Encrypt2,703,24823.562,634,48623.281.24
Sectigo Limited2,098,67918.292,054,42618.150.79
DigiCert1,534,10513.371,540,37413.61-1.74
cPanel, Inc.671,4525.85661,2905.840.18
GlobalSign nv-sa595,3645.19577,4765.101.72
COMODO CA Limited471,3054.11490,0504.33-5.11
Unknown419,7853.66409,1453.611.23
GoDaddy.com, Inc.396,9373.46398,2353.52-1.66
Starfield Technologies, Inc.231,2322.02225,6741.991.09
Amazon219,7501.92220,8201.95-1.81
Cloudflare, Inc.177,9741.55173,3131.531.32
SecureCore113,5340.99111,3620.980.59
Plesk102,6940.90104,5100.92-3.05
Gehirn Inc.88,5130.7786,8630.770.54
SomeOrganization86,6170.7685,6230.76-0.19
Google Trust Services85,8370.7584,5740.750.14
Unizeto Technologies S.A.85,5700.7582,3490.732.52
none84,0030.7382,9660.73-0.10
ispgateway68,5630.6068,2530.60-0.89
DreamHost59,7510.5257,5180.512.50
Microsoft Corporation57,8110.5058,6420.52-2.73
Internet254,3050.4754,0730.48-0.91
home.pl S.A.40,8730.3640,1460.350.45
TERENA40,6810.3543,4240.38-7.57
Odin40,0720.3539,7840.35-0.62
Actalis S.p.A.38,9960.3437,1960.333.44
Parallels38,1540.3338,8930.34-3.21
Entrust, Inc.36,2740.3236,7060.32-2.50
Gandi35,5720.3135,7230.32-1.75
GoGetSSL32,2860.2831,3190.281.71
Trustwave Holdings, Inc.30,9040.2733,6460.30-9.38
Webhosting29,5520.2629,1860.26-0.10
TrustAsia Technologies, Inc.25,4820.2223,0140.209.25
GeoTrust Inc.25,0970.2225,6530.23-3.47
Japan Registry Services Co., Ltd.22,1530.1921,3020.192.61
Cybertrust Japan Co., Ltd.21,6340.1919,5270.179.31
GEANT Vereniging18,8440.1615,3110.1421.43
Internet Widgits Pty Ltd17,1920.1517,1010.15-0.81
QuoVadis Limited17,0440.1517,6130.16-4.52
Apache HTTP Server16,3550.1416,3290.14-1.18
Acme Co15,4310.1314,7160.133.46
SECOM Trust Systems CO.,LTD.15,2840.1315,3960.14-2.05
Network Solutions L.L.C.14,9510.1314,9630.13-1.41
WebSupport, s.r.o.14,9220.1314,9230.13-1.34
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.14,8520.1314,7720.13-0.80
Soluciones Corporativas IP, SL13,3880.1213,0710.121.06
Trust Provider B.V.12,5890.1112,4550.11-0.27
Default Company Ltd12,2290.1110,9060.1010.63
ddos-guard11,9590.1011,9330.11-1.12
SH11,8960.1011,8780.10-1.19
WEDOS Internet, a.s.11,3270.1011,1640.100.11
World4You Internet Services GmbH11,1470.1011,0700.10-0.65
ZeroSSL9,7710.099,6490.09-0.09
Corporation Service Company9,3850.089,7090.09-4.63
DOMENY.PL sp. z o.o9,1570.088,7290.083.50
Test Self SSL Company8,4840.078,2910.070.96
KAGOYA-JAPAN8,0850.077,9740.070.04
www.sprinthost.ru6,9280.066,7850.060.74
The Trustico Group Ltd6,2570.056,2130.05-0.64
CloudFlare, Inc.5,8950.055,8170.05-0.01
Caddy Self-Signed5,7910.055,8190.05-1.81
Unspecified5,4750.054,9940.048.17
XX5,3040.055,2670.05-0.64
Dreamcommerce S.A.4,9740.044,8600.040.98
TAIWAN-CA4,5810.044,4210.042.24
o2switch4,5550.044,3280.043.84
T-Systems International GmbH4,4270.044,3710.04-0.07
Mirohost4,2660.044,2330.04-0.57
SSL Corporation4,0780.043,9920.040.79
dhosting.pl Sp. z o.o.4,0740.043,9200.032.54
National Institute of Informatics4,0590.044,0390.04-0.85
Basekit Ltd4,0440.043,4650.0315.15
SwissSign AG3,8990.033,8660.03-0.49
thawte, Inc.3,8840.034,0290.04-4.89
Buypass AS-9831633273,7750.033,5440.035.10
GeoTrust, Inc.3,7140.033,8320.03-4.37
nazwa.pl sp. z o.o.3,6430.033,5540.031.14
GMO CLOUD K.K.3,5810.033,4920.031.18
HydrantID (Avalanche Cloud Corporation)3,3320.033,6020.03-8.73
DealerInspire3,2340.033,1760.030.47
CentOS Web Panel3,1990.033,1320.030.78
NetLock Kft.3,1880.033,2620.03-3.57
N/A2,9930.033,0280.03-2.48
WoTrus CA Limited2,9420.032,7290.026.37
SSL Server2,8120.022,7990.02-0.88
Guardian Inc.2,7160.022,5970.023.19
Digital Element2,6850.022,6850.02-1.34
Bitrix2,6350.022,5540.021.79
ONEsolution s.r.o.2,5730.022,5270.020.46
testexample2,4950.0200.00N/A
unaone2,4770.022,4840.02-1.61
Comodo Limited2,4230.024,0220.04-40.56
Beijing Knownsec Information Technology Co., Ltd2,4040.022,2790.024.08
StartCom Ltd.2,3120.022,3270.02-1.97
MyCompany2,3090.022,2820.02-0.17
QuoVadis Trustlink B.V.2,2830.0200.00N/A
FASTVPS2,2710.022,1580.023.83
Fasthosts Internet Limited2,2560.022,2130.020.58
DivMulTech LLC2,2380.022,2140.02-0.27
OVH2,1960.022,1670.02-0.01

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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