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Certificate Authority Market Share Report
July 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 June 2019
Count
June 2019
%
May 2019
Count
May 2019
%
Growth
%
COMODO CA Limited1,376,34923.151,349,04424.47-5.41
Let's Encrypt1,077,39318.12963,41317.473.68
DigiCert939,43015.80905,75516.43-3.84
GlobalSign nv-sa390,1996.56369,4696.70-2.08
GoDaddy.com, Inc.254,6634.28244,8454.44-3.57
Sectigo Limited250,7074.22186,3453.3824.74
cPanel, Inc.240,4464.04206,9223.757.73
Unknown175,9982.96156,0332.834.58
Amazon114,8661.93120,5672.19-11.67
Starfield Technologies, Inc.89,6631.5178,9951.435.23
Google Trust Services61,4791.0360,1851.09-5.29
CloudFlare, Inc.48,8850.8220,1770.37124.63
Plesk42,5730.7236,8740.677.04
SomeOrganization40,1870.6836,1900.662.95
Internet239,3470.6637,1820.67-1.89
TERENA37,3340.6335,7190.65-3.09
ispgateway36,7950.6233,4670.611.93
none35,4790.6031,7340.583.65
Microsoft Corporation35,0080.5933,1510.60-2.09
SecureCore34,1150.5728,2060.5112.14
Unizeto Technologies S.A.33,5880.5631,0940.560.15
GeoTrust Inc.30,0920.5128,8640.52-3.34
Entrust, Inc.28,6180.4827,5240.50-3.60
Trustwave Holdings, Inc.27,3080.4625,3510.46-0.13
Parallels26,2950.4424,1520.440.94
Gandi25,2230.4224,0730.44-2.86
Gehirn Inc.23,4920.4018,5680.3417.30
Odin21,0340.3518,9200.343.07
home.pl S.A.18,0120.3016,6350.300.39
DreamHost15,3380.2612,4320.2314.39
Apache HTTP Server15,0520.2514,9400.27-6.59
Network Solutions L.L.C.14,9040.2514,5570.26-5.08
QuoVadis Limited13,3760.2213,0050.24-4.64
Actalis S.p.A./0335852096712,9190.2211,0360.208.53
Internet Widgits Pty Ltd11,1590.199,4580.179.39
Webhosting10,3210.178,9330.167.12
Cybertrust Japan Co., Ltd.9,9080.1711,1920.20-17.92
nazwa.pl sp. z o.o.9,3810.168,3200.154.54
SECOM Trust Systems CO.,LTD.8,9350.157,7730.146.57
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.8,2340.146,7230.1213.55
Japan Registry Services Co., Ltd.6,8980.126,2250.112.74
WebSupport, s.r.o.6,8290.116,0140.115.28
Corporation Service Company6,6100.116,2930.11-2.62
Trust Provider B.V.6,2600.115,7540.100.87
TrustAsia Technologies, Inc.6,2500.115,4110.107.09
io.ua6,0610.106,0120.11-6.53
Hosting Ukraine LLC5,8470.105,2690.102.88
StartCom Ltd.5,3890.095,3040.10-5.80
The Trustico Group Ltd4,7400.085,5910.10-21.40
thawte, Inc.4,4650.084,3280.08-4.35
Nijimo, Inc.4,3160.074,0800.07-1.92
SH4,1820.073,6150.077.26
WEDOS Internet, a.s.3,8920.073,4160.065.63
GeoTrust, Inc.3,6120.063,4680.06-3.44
Default Company Ltd3,5970.063,0530.069.23
HydrantID (Avalanche Cloud Corporation)3,4840.063,4640.06-6.75
Pizza-Taxi.de GmbH / CA3,4670.063,4180.06-5.96
Acme Co3,4170.063,2400.06-2.22
World4You Internet Services GmbH3,3130.062,7190.0512.97
KAGOYA-JAPAN2,9920.052,6510.054.64
Comodo Limited2,7690.052,6210.05-2.05
Test Self SSL Company2,7630.052,4490.044.60
XX2,7620.052,4570.044.22
National Institute of Informatics2,7130.052,5510.05-1.40
Dreamcommerce S.A.2,5640.042,0630.0415.23
Symantec Corporation2,5260.042,5230.05-7.18
DOMENY.PL sp. z o.o2,5180.043,5870.07-34.92
Rede Nacional de Ensino e Pesquisa - RNP2,4270.042,2660.04-0.70
TAIWAN-CA2,4130.042,2600.04-1.01
SwissSign AG2,3640.042,2050.04-0.60
Soluciones Corporativas IP, SL2,2900.041,9880.046.80
www.sprinthost.ru2,2570.041,9930.044.99
T-Systems International GmbH2,2470.042,1610.04-3.60
SSL.com1,8980.031,9950.04-11.79
Mirohost1,8830.031,6750.034.23
Buypass AS-9831633271,7740.031,6140.031.90
NetLock Kft.1,7530.031,6290.03-0.23
WoSign CA Limited1,7380.031,6290.03-1.08
Guardian Inc.1,7080.031,4390.0310.05
MyCompany1,7040.031,5540.031.66
KDDI Web Communications Inc.1,6900.031,9070.03-17.84
EUNETIC GmbH1,6430.031,5420.03-1.21
Verisign1,5420.031,3890.032.93
Government of Korea1,4650.021,5220.03-10.76
AC Camerfirma S.A.1,4450.021,4930.03-10.27
dhosting.pl Sp. z o.o.1,4230.021,3170.020.18
CertCenter AG1,2990.021,2330.02-2.32
AffirmTrust1,1880.021,1510.02-4.31
UIC1,1710.021,1710.02-7.29
Globe Hosting, Inc.1,0790.021,0150.02-1.44
OVH1,0610.029520.023.33
GMO CLOUD K.K.1,0560.029150.027.00
GoGetSSL1,0390.0200.00N/A
WoTrus CA Limited1,0180.029110.023.60
Comvive Servidores SL9840.028730.024.50
N/A9810.027970.0114.12
SSL Corporation9760.027700.0117.52
DealerInspire9480.0200.00N/A
Bitrix9230.0200.00N/A
SSL Server8790.0100.00N/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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