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You are viewing an outdated report.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
January 1st, 2018

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 December 2017
Count
December 2017
%
November 2017
Count
November 2017
%
Growth
%
DigiCert6,797,96264.3200.00N/A
GoDaddy.com, Inc.806,6557.6300.00N/A
COMODO CA Limited741,6397.0200.00N/A
GeoTrust Inc.456,6174.3200.00N/A
GlobalSign nv-sa330,7943.1300.00N/A
Let's Encrypt288,4152.7300.00N/A
Symantec Corporation131,0151.2400.00N/A
cPanel, Inc.80,2350.7600.00N/A
thawte, Inc.77,5560.7300.00N/A
Unknown74,4030.7000.00N/A
Gandi73,9160.7000.00N/A
Amazon65,3220.6200.00N/A
Starfield Technologies, Inc.57,6190.5500.00N/A
Microsoft Corporation43,0130.4100.00N/A
Google Inc36,8590.3500.00N/A
Internet230,9600.2900.00N/A
TERENA28,4380.2700.00N/A
Entrust, Inc.24,9240.2400.00N/A
Parallels21,9640.2100.00N/A
Trustwave Holdings, Inc.19,6170.1900.00N/A
Unizeto Technologies S.A.19,2200.1800.00N/A
Network Solutions L.L.C.18,3540.1700.00N/A
none17,8920.1700.00N/A
SomeOrganization17,4640.1700.00N/A
ispgateway17,3830.1600.00N/A
SecureCore11,8020.1100.00N/A
DreamHost11,2970.1100.00N/A
Odin11,0670.1000.00N/A
QuoVadis Limited10,2320.1000.00N/A
NN.RU8,8830.0800.00N/A
Cybertrust Japan Co., Ltd.8,6060.0800.00N/A
Plesk8,5870.0800.00N/A
StartCom Ltd.8,4340.0800.00N/A
home.pl S.A.8,1430.0800.00N/A
SSL.com7,8250.0700.00N/A
GeoTrust, Inc.7,0320.0700.00N/A
Hostpoint AG6,5500.0600.00N/A
Internet Widgits Pty Ltd6,5000.0600.00N/A
Google Trust Services5,2440.0500.00N/A
HydrantID (Avalanche Cloud Corporation)4,8750.0500.00N/A
io.ua4,7170.0400.00N/A
nazwa.pl sp. z o.o.4,4160.0400.00N/A
Corporation Service Company3,8320.0400.00N/A
CloudFlare, Inc.3,7130.0400.00N/A
SECOM Trust Systems CO.,LTD.3,4320.0300.00N/A
Comodo Limited3,3480.0300.00N/A
Pizza-Taxi.de GmbH / CA3,1700.0300.00N/A
Trust Provider B.V.3,1650.0300.00N/A
KDDI Web Communications Inc.3,1170.0300.00N/A
Actalis S.p.A./033585209673,0650.0300.00N/A
WebSupport, s.r.o.2,7400.0300.00N/A
National Institute of Informatics2,3050.0200.00N/A
Government of Korea2,2660.0200.00N/A
Hosting Ukraine LLC2,2500.0200.00N/A
WoSign CA Limited1,9790.0200.00N/A
Default Company Ltd1,9710.0200.00N/A
Thawte, Inc.1,8880.0200.00N/A
DOMENY.PL sp. z o.o1,8880.0200.00N/A
Webhosting1,8800.0200.00N/A
Verisign1,8390.0200.00N/A
TAIWAN-CA1,7900.0200.00N/A
T-Systems International GmbH1,7220.0200.00N/A
Rede Nacional de Ensino e Pesquisa - RNP1,4810.0100.00N/A
Japan Registry Services Co., Ltd.1,4730.0100.00N/A
AlphaSSL1,4260.0100.00N/A
Nijimo, Inc.1,4250.0100.00N/A
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.1,3920.0100.00N/A
KEYNECTIS1,3880.0100.00N/A
Equifax (Geotrust)1,3420.0100.00N/A
SwissSign AG1,2910.0100.00N/A
EUNETIC GmbH1,2820.0100.00N/A
NetLock Kft.1,2190.0100.00N/A
Test Self SSL Company1,1960.0100.00N/A
UIC1,1770.0100.00N/A
WEDOS Internet, a.s.1,1420.0100.00N/A
AC Camerfirma S.A.1,1040.0100.00N/A
Dreamcommerce S.A.1,0940.0100.00N/A
U.S. Government1,0660.0100.00N/A
XX9550.0100.00N/A
SH9360.0100.00N/A
TrustAsia Technologies, Inc.8990.0100.00N/A
Globe Hosting, Inc.8770.0100.00N/A
Buypass AS-9831633277450.0100.00N/A
AffirmTrust7300.0100.00N/A
Apache HTTP Server7140.0100.00N/A
TBS INTERNET6840.0100.00N/A
Intermediate Certificate6730.0100.00N/A
Internet Invest6660.0100.00N/A
CAcert Inc.6530.0100.00N/A
www.sprinthost.ru6110.0100.00N/A
FNMT-RCM6060.0100.00N/A
Zimbra Collaboration Server5950.0100.00N/A
Beijing Knownsec Information Technology Co., Ltd5220.0000.00N/A
Root CA5210.0000.00N/A
Trend Micro Inc5130.0000.00N/A
PCextreme BV4770.0000.00N/A
ICP-Brasil4740.0000.00N/A
OVH4580.0000.00N/A
Acme Co4490.0000.00N/A
CertCenter AG4390.0000.00N/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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