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Survey Data Mining: Home | FAQ | Archive | Glossary |
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Report Description |
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 | April 2021 Count |
April 2021 % |
March 2021 Count |
March 2021 % |
Growth % |
Let's Encrypt | 3,161,905 | 25.05 | 3,070,399 | 24.87 | 0.72 |
Sectigo Limited | 2,467,099 | 19.54 | 2,405,626 | 19.49 | 0.30 |
DigiCert | 1,613,963 | 12.79 | 1,599,053 | 12.95 | -1.29 |
cPanel, Inc. | 767,275 | 6.08 | 748,252 | 6.06 | 0.29 |
GlobalSign nv-sa | 570,297 | 4.52 | 559,921 | 4.54 | -0.39 |
Unknown | 482,466 | 3.82 | 464,272 | 3.76 | 1.63 |
GoDaddy.com, Inc. | 411,841 | 3.26 | 408,666 | 3.31 | -1.44 |
Unizeto Technologies S.A. | 263,336 | 2.09 | 258,209 | 2.09 | -0.26 |
Amazon | 246,936 | 1.96 | 240,343 | 1.95 | 0.48 |
Starfield Technologies, Inc. | 230,387 | 1.83 | 224,607 | 1.82 | 0.32 |
Cloudflare, Inc. | 214,257 | 1.70 | 207,363 | 1.68 | 1.05 |
COMODO CA Limited | 170,788 | 1.35 | 175,319 | 1.42 | -4.73 |
SecureCore | 130,772 | 1.04 | 127,159 | 1.03 | 0.58 |
Plesk | 109,839 | 0.87 | 107,108 | 0.87 | 0.29 |
Gehirn Inc. | 99,944 | 0.79 | 97,732 | 0.79 | 0.01 |
SomeOrganization | 97,783 | 0.77 | 92,626 | 0.75 | 3.25 |
none | 94,997 | 0.75 | 92,497 | 0.75 | 0.44 |
Google Trust Services | 90,894 | 0.72 | 90,344 | 0.73 | -1.60 |
DreamHost | 76,941 | 0.61 | 73,329 | 0.59 | 2.62 |
ispgateway | 70,708 | 0.56 | 70,064 | 0.57 | -1.30 |
Microsoft Corporation | 62,472 | 0.49 | 62,012 | 0.50 | -1.47 |
Internet2 | 54,321 | 0.43 | 53,815 | 0.44 | -1.28 |
home.pl S.A. | 45,830 | 0.36 | 44,656 | 0.36 | 0.37 |
Actalis S.p.A. | 44,088 | 0.35 | 42,959 | 0.35 | 0.37 |
GoGetSSL | 43,937 | 0.35 | 42,045 | 0.34 | 2.20 |
Gandi | 37,605 | 0.30 | 36,435 | 0.30 | 0.94 |
Entrust, Inc. | 36,681 | 0.29 | 36,785 | 0.30 | -2.48 |
Parallels | 36,262 | 0.29 | 35,965 | 0.29 | -1.39 |
GEANT Vereniging | 36,041 | 0.29 | 33,971 | 0.28 | 3.76 |
TrustAsia Technologies, Inc. | 33,768 | 0.27 | 32,715 | 0.26 | 0.95 |
Webhosting | 32,769 | 0.26 | 32,039 | 0.26 | 0.03 |
Trustwave Holdings, Inc. | 30,836 | 0.24 | 30,769 | 0.25 | -1.99 |
Odin | 30,438 | 0.24 | 30,475 | 0.25 | -2.32 |
TERENA | 27,001 | 0.21 | 28,927 | 0.23 | -8.71 |
GeoTrust Inc. | 24,653 | 0.20 | 24,771 | 0.20 | -2.66 |
Japan Registry Services Co., Ltd. | 24,276 | 0.19 | 23,853 | 0.19 | -0.46 |
Cybertrust Japan Co., Ltd. | 22,595 | 0.18 | 22,372 | 0.18 | -1.22 |
SECOM Trust Systems CO.,LTD. | 19,719 | 0.16 | 17,406 | 0.14 | 10.80 |
Internet Widgits Pty Ltd | 18,616 | 0.15 | 17,950 | 0.15 | 1.43 |
Acme Co | 18,247 | 0.14 | 17,523 | 0.14 | 1.84 |
Apache HTTP Server | 16,470 | 0.13 | 16,443 | 0.13 | -2.04 |
WebSupport, s.r.o. | 15,741 | 0.12 | 15,504 | 0.13 | -0.70 |
Soluciones Corporativas IP, SL | 15,580 | 0.12 | 14,758 | 0.12 | 3.25 |
Network Solutions L.L.C. | 15,556 | 0.12 | 14,861 | 0.12 | 2.37 |
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V. | 15,461 | 0.12 | 15,295 | 0.12 | -1.14 |
QuoVadis Limited | 14,597 | 0.12 | 14,879 | 0.12 | -4.05 |
SH | 13,791 | 0.11 | 13,300 | 0.11 | 1.41 |
Default Company Ltd | 13,298 | 0.11 | 12,612 | 0.10 | 3.12 |
World4You Internet Services GmbH | 12,914 | 0.10 | 12,542 | 0.10 | 0.70 |
DOMENY.PL sp. z o.o | 10,008 | 0.08 | 9,806 | 0.08 | -0.18 |
Test Self SSL Company | 9,975 | 0.08 | 9,632 | 0.08 | 1.28 |
KAGOYA-JAPAN | 9,003 | 0.07 | 8,808 | 0.07 | -0.03 |
Unspecified | 8,854 | 0.07 | 8,236 | 0.07 | 5.14 |
CloudFlare, Inc. | 8,838 | 0.07 | 8,788 | 0.07 | -1.64 |
Corporation Service Company | 8,628 | 0.07 | 9,728 | 0.08 | -13.26 |
ZeroSSL | 8,233 | 0.07 | 7,906 | 0.06 | 1.85 |
Trust Provider B.V. | 8,198 | 0.06 | 8,092 | 0.07 | -0.92 |
www.sprinthost.ru | 7,963 | 0.06 | 7,710 | 0.06 | 1.01 |
ddos-guard | 7,492 | 0.06 | 6,930 | 0.06 | 5.73 |
Basekit Ltd | 7,320 | 0.06 | 6,731 | 0.05 | 6.36 |
XX | 6,484 | 0.05 | 6,226 | 0.05 | 1.85 |
o2switch | 6,474 | 0.05 | 5,877 | 0.05 | 7.74 |
Dreamcommerce S.A. | 5,517 | 0.04 | 5,459 | 0.04 | -1.16 |
Caddy Self-Signed | 5,371 | 0.04 | 5,564 | 0.05 | -5.59 |
Alpiro s.r.o. | 5,301 | 0.04 | 5,327 | 0.04 | -2.68 |
testexample | 5,238 | 0.04 | 3,547 | 0.03 | 44.43 |
TAIWAN-CA | 5,117 | 0.04 | 5,029 | 0.04 | -0.49 |
dhosting.pl Sp. z o.o. | 4,880 | 0.04 | 4,660 | 0.04 | 2.42 |
T-Systems International GmbH | 4,779 | 0.04 | 4,694 | 0.04 | -0.43 |
SSL Corporation | 4,665 | 0.04 | 4,609 | 0.04 | -1.01 |
Mirohost | 4,463 | 0.04 | 4,433 | 0.04 | -1.54 |
Buypass AS-983163327 | 4,349 | 0.03 | 3,908 | 0.03 | 8.84 |
WEDOS Internet, a.s. | 4,335 | 0.03 | 10,298 | 0.08 | -58.83 |
nazwa.pl sp. z o.o. | 4,205 | 0.03 | 3,984 | 0.03 | 3.23 |
GMO CLOUD K.K. | 4,172 | 0.03 | 4,053 | 0.03 | 0.67 |
SwissSign AG | 3,903 | 0.03 | 3,961 | 0.03 | -3.63 |
DealerInspire | 3,793 | 0.03 | 3,725 | 0.03 | -0.41 |
CentOS Web Panel | 3,781 | 0.03 | 3,611 | 0.03 | 2.41 |
QuoVadis Trustlink B.V. | 3,692 | 0.03 | 3,654 | 0.03 | -1.18 |
GeoTrust, Inc. | 3,524 | 0.03 | 3,626 | 0.03 | -4.95 |
thawte, Inc. | 3,384 | 0.03 | 3,588 | 0.03 | -7.76 |
HydrantID (Avalanche Cloud Corporation) | 3,372 | 0.03 | 3,324 | 0.03 | -0.79 |
Beijing Knownsec Information Technology Co., Ltd | 3,317 | 0.03 | 3,033 | 0.02 | 6.96 |
Bitrix | 3,314 | 0.03 | 3,135 | 0.03 | 3.39 |
NetLock Kft. | 3,260 | 0.03 | 3,243 | 0.03 | -1.69 |
WoTrus CA Limited | 3,201 | 0.03 | 3,084 | 0.02 | 1.51 |
The Trustico Group Ltd | 3,143 | 0.02 | 3,054 | 0.02 | 0.65 |
N/A | 3,049 | 0.02 | 3,005 | 0.02 | -0.77 |
Guardian Inc. | 2,950 | 0.02 | 2,906 | 0.02 | -0.72 |
SSL Server | 2,939 | 0.02 | 2,915 | 0.02 | -1.39 |
ONEsolution s.r.o. | 2,934 | 0.02 | 2,851 | 0.02 | 0.65 |
Digital Element | 2,689 | 0.02 | 2,688 | 0.02 | -2.16 |
FASTVPS | 2,669 | 0.02 | 2,595 | 0.02 | 0.59 |
Fasthosts Internet Limited | 2,459 | 0.02 | 2,516 | 0.02 | -4.41 |
AttHost Sp z o.o. | 2,437 | 0.02 | 2,358 | 0.02 | 1.08 |
unaone | 2,423 | 0.02 | 2,437 | 0.02 | -2.76 |
MyCompany | 2,380 | 0.02 | 2,384 | 0.02 | -2.36 |
DivMulTech LLC | 2,370 | 0.02 | 2,350 | 0.02 | -1.37 |
EUNETIC GmbH | 2,303 | 0.02 | 0 | 0.00 | N/A |
SpinupWP | 2,254 | 0.02 | 0 | 0.00 | N/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.