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You are viewing an outdated report.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


    
Certificate Authority Market Share Report
March 1st, 2021

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.

Temp Certificate! CA Certificate Historical Market Share Graph

CA February 2021
Count
February 2021
%
January 2021
Count
January 2021
%
Growth
%
Let's Encrypt2,970,25924.552,882,06224.221.35
Sectigo Limited2,332,84119.282,285,14219.210.40
DigiCert1,576,27713.031,561,80213.13-0.74
cPanel, Inc.728,7936.02705,3755.931.61
GlobalSign nv-sa573,0714.74586,0134.93-3.83
Unknown451,1303.73445,0883.74-0.32
GoDaddy.com, Inc.408,6923.38409,1953.44-1.78
Amazon241,2451.99239,0922.01-0.77
Unizeto Technologies S.A.238,3451.9788,1620.74165.88
Starfield Technologies, Inc.219,3471.81218,6441.84-1.34
COMODO CA Limited207,5761.72366,1523.08-44.25
Cloudflare, Inc.199,2381.65191,6311.612.25
SecureCore122,9441.02119,8531.010.88
Plesk105,7870.87104,4900.88-0.43
Gehirn Inc.94,7390.7892,6920.780.52
SomeOrganization91,9510.7691,1180.77-0.76
none89,5000.7487,3590.730.76
Google Trust Services89,1050.7487,8860.74-0.29
ispgateway69,1970.5768,7980.58-1.08
DreamHost68,4850.5765,7140.552.49
Microsoft Corporation60,5620.5059,5790.50-0.03
Internet253,8060.4454,1470.46-2.27
home.pl S.A.43,5810.3642,7990.360.14
Actalis S.p.A.41,7090.3440,8530.340.41
GoGetSSL40,6790.3439,0990.332.32
Odin37,3350.3137,4870.32-2.05
Entrust, Inc.37,2250.3136,8810.31-0.74
Gandi36,6490.3036,4160.31-1.03
Parallels36,6020.3036,7120.31-1.95
TERENA32,5240.2734,7130.29-7.86
TrustAsia Technologies, Inc.31,1780.2628,4680.247.71
Webhosting31,0090.2630,4190.260.25
Trustwave Holdings, Inc.30,7160.2530,6730.26-1.52
GEANT Vereniging28,9450.2425,8240.2210.23
GeoTrust Inc.24,6350.2024,4310.21-0.83
Japan Registry Services Co., Ltd.23,3600.1923,0410.19-0.29
Cybertrust Japan Co., Ltd.19,4970.1619,4250.16-1.29
Internet Widgits Pty Ltd17,7110.1517,6020.15-1.05
Acme Co17,1700.1416,5210.142.21
SECOM Trust Systems CO.,LTD.16,5580.1415,9430.132.14
Apache HTTP Server16,4110.1416,3850.14-1.50
Network Solutions L.L.C.15,3420.1315,0800.130.05
WebSupport, s.r.o.15,1750.1314,9670.13-0.29
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.15,1660.1315,0130.13-0.65
QuoVadis Limited15,0090.1215,7160.13-6.08
Soluciones Corporativas IP, SL14,2680.1213,9780.120.39
SH12,9190.1112,6470.110.46
Default Company Ltd12,8280.1112,7610.11-1.14
Trust Provider B.V.12,7500.1112,6100.11-0.56
World4You Internet Services GmbH12,1260.1011,8300.100.81
WEDOS Internet, a.s.11,7910.1011,6710.10-0.64
DOMENY.PL sp. z o.o9,6120.089,5700.08-1.22
Corporation Service Company9,5670.089,4210.08-0.13
Test Self SSL Company9,1880.088,9650.080.79
KAGOYA-JAPAN8,6290.078,4740.070.14
ZeroSSL7,8830.077,7830.07-0.39
Unspecified7,5010.066,8290.068.02
www.sprinthost.ru7,4550.067,2090.061.70
ddos-guard6,9820.066,7890.061.14
The Trustico Group Ltd6,4990.056,4220.05-0.48
Basekit Ltd5,8380.055,2280.049.82
XX5,8340.055,6670.051.24
CloudFlare, Inc.5,7530.055,5530.051.89
o2switch5,5830.055,2730.044.13
Caddy Self-Signed5,5730.055,7200.05-4.18
Dreamcommerce S.A.5,3410.045,2090.040.84
TAIWAN-CA4,8770.044,8240.04-0.57
T-Systems International GmbH4,6080.044,5780.04-1.01
dhosting.pl Sp. z o.o.4,5030.044,3170.042.58
SSL Corporation4,4430.044,3390.040.70
Mirohost4,3770.044,3220.04-0.40
nazwa.pl sp. z o.o.3,9860.033,8690.031.32
SwissSign AG3,9760.034,0200.03-2.73
Buypass AS-9831633273,9230.033,8800.03-0.56
GMO CLOUD K.K.3,9110.033,8150.030.82
thawte, Inc.3,6230.033,6850.03-3.31
GeoTrust, Inc.3,5820.033,5800.03-1.60
CentOS Web Panel3,5810.033,3250.035.92
DealerInspire3,5800.033,4660.031.58
HydrantID (Avalanche Cloud Corporation)3,5530.033,5180.03-0.68
QuoVadis Trustlink B.V.3,5430.033,3610.033.67
National Institute of Informatics3,4970.033,8700.03-11.13
testexample3,1710.032,9570.025.46
N/A3,0120.023,0010.03-1.29
WoTrus CA Limited2,9780.022,9460.02-0.59
Bitrix2,9740.022,8220.023.64
SSL Server2,8830.022,8600.02-0.86
Guardian Inc.2,8580.022,8010.020.35
ONEsolution s.r.o.2,7760.022,7070.020.85
Beijing Knownsec Information Technology Co., Ltd2,7310.022,5770.024.22
Digital Element2,6880.022,6870.02-1.62
FASTVPS2,5050.022,4160.021.97
unaone2,4430.022,4570.02-2.22
Fasthosts Internet Limited2,4280.022,3750.020.54
NetLock Kft.2,4190.023,4460.03-30.96
MyCompany2,3780.022,3650.02-1.11
Comodo Limited2,3160.022,3480.02-3.00
DivMulTech LLC2,3060.022,2910.02-1.01
AttHost Sp z o.o.2,2460.0200.00N/A
EUNETIC GmbH2,2280.022,2270.02-1.61

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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