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Certificate Authority Market Share Report
August 1st, 2019

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 July 2019
Count
July 2019
%
June 2019
Count
June 2019
%
Growth
%
COMODO CA Limited1,414,60221.671,376,34923.15-6.36
Let's Encrypt1,225,60218.781,077,39318.123.64
DigiCert1,027,89215.75939,43015.80-0.31
GlobalSign nv-sa416,6716.38390,1996.56-2.71
Sectigo Limited327,9145.02250,7074.2219.17
cPanel, Inc.278,6424.27240,4464.045.58
GoDaddy.com, Inc.273,1694.19254,6634.28-2.27
Unknown195,3132.99175,9982.961.11
Amazon126,1061.93114,8661.930.02
Starfield Technologies, Inc.102,8861.5889,6631.514.54
Google Trust Services63,1280.9761,4791.03-6.45
CloudFlare, Inc.57,2280.8848,8850.826.66
Plesk49,5690.7642,5730.726.08
SomeOrganization44,3070.6840,1870.680.45
SecureCore41,5250.6434,1150.5710.90
Internet241,4090.6339,3470.66-4.12
ispgateway41,0910.6336,7950.621.75
none40,6410.6235,4790.604.36
TERENA39,2970.6037,3340.63-4.10
Unizeto Technologies S.A.36,4390.5633,5880.56-1.16
GeoTrust Inc.32,1580.4930,0920.51-2.64
Entrust, Inc.30,8420.4728,6180.48-1.81
Trustwave Holdings, Inc.29,7620.4627,3080.46-0.70
Gehirn Inc.29,4880.4523,4920.4014.36
Parallels28,9800.4426,2950.440.41
Gandi26,7140.4125,2230.42-3.51
Microsoft Corporation25,5860.3935,0080.59-33.41
Odin23,6610.3621,0340.352.49
home.pl S.A.19,9960.3118,0120.301.14
DreamHost18,9400.2915,3380.2612.50
Network Solutions L.L.C.15,4380.2414,9040.25-5.63
Actalis S.p.A./0335852096715,3070.2312,9190.227.95
Apache HTTP Server15,2240.2315,0520.25-7.85
Cybertrust Japan Co., Ltd.14,5600.229,9080.1733.88
QuoVadis Limited14,1000.2213,3760.22-3.96
SECOM Trust Systems CO.,LTD.12,5240.198,9350.1527.70
Webhosting12,1690.1910,3210.177.42
Internet Widgits Pty Ltd11,8090.1811,1590.19-3.59
nazwa.pl sp. z o.o.11,0680.179,3810.167.49
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.11,0200.178,2340.1421.93
WebSupport, s.r.o.7,7690.126,8290.113.65
Japan Registry Services Co., Ltd.7,7350.126,8980.122.16
TrustAsia Technologies, Inc.7,0200.116,2500.112.33
Corporation Service Company6,8950.116,6100.11-4.96
Trust Provider B.V.6,8170.106,2600.11-0.79
Hosting Ukraine LLC6,4510.105,8470.100.52
io.ua6,1340.096,0610.10-7.79
StartCom Ltd.5,4790.085,3890.09-7.37
The Trustico Group Ltd5,2260.084,7400.080.45
SH4,7960.074,1820.074.48
thawte, Inc.4,6560.074,4650.08-4.99
WEDOS Internet, a.s.4,5840.073,8920.077.31
World4You Internet Services GmbH4,0890.063,3130.0612.45
Default Company Ltd4,0450.063,5970.062.46
Acme Co4,0110.063,4170.066.95
GeoTrust, Inc.3,7750.063,6120.06-4.78
HydrantID (Avalanche Cloud Corporation)3,5110.053,4840.06-8.19
Pizza-Taxi.de GmbH / CA3,5080.053,4670.06-7.81
KAGOYA-JAPAN3,3960.052,9920.053.41
Test Self SSL Company3,2180.052,7630.056.11
XX3,1570.052,7620.054.14
Comodo Limited3,1460.052,7690.053.51
National Institute of Informatics2,9000.042,7130.05-2.61
Dreamcommerce S.A.2,8110.042,5640.04-0.12
DOMENY.PL sp. z o.o2,7210.042,5180.04-1.55
TAIWAN-CA2,6280.042,4130.04-0.77
Rede Nacional de Ensino e Pesquisa - RNP2,6150.042,4270.04-1.83
www.sprinthost.ru2,5750.042,2570.043.94
SwissSign AG2,5640.042,3640.04-1.18
Symantec Corporation2,5600.042,5260.04-7.67
Caddy Self-Signed2,4580.0400.00N/A
Soluciones Corporativas IP, SL2,4030.042,2900.04-4.40
T-Systems International GmbH2,3950.042,2470.04-2.89
Mirohost2,1790.031,8830.035.43
Nijimo, Inc.2,0990.034,3160.07-55.69
WoSign CA Limited1,9760.031,7380.033.58
Buypass AS-9831633271,9570.031,7740.030.51
Guardian Inc.1,9220.031,7080.032.52
NetLock Kft.1,8760.031,7530.03-2.50
SSL.com1,8460.031,8980.03-11.39
MyCompany1,8050.031,7040.03-3.49
EUNETIC GmbH1,8040.031,6430.030.04
Verisign1,7550.031,5420.033.69
AC Camerfirma S.A.1,6310.021,4450.022.84
dhosting.pl Sp. z o.o.1,5630.021,4230.020.07
KDDI Web Communications Inc.1,4490.021,6900.03-21.88
CertCenter AG1,4090.021,2990.02-1.18
GoGetSSL1,3750.021,0390.0220.57
Government of Korea1,3730.021,4650.02-14.61
GMO CLOUD K.K.1,2540.021,0560.028.19
OVH1,2330.021,0610.025.88
AffirmTrust1,2160.021,1880.02-6.74
SSL Server1,2000.028790.0124.38
Globe Hosting, Inc.1,1900.021,0790.020.48
UIC1,1710.021,1710.02-8.89
DealerInspire1,1630.029480.0211.77
N/A1,1510.029810.026.90
WoTrus CA Limited1,1460.021,0180.022.56
SSL Corporation1,1120.029760.023.80
Comvive Servidores SL1,1080.029840.022.59

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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