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 doesn't verify the signatures of the certificates it finds, it only uses the issuer Organization Name to uniquely identify the issuing CA.

CA	August 2021 Count	August 2021 %	July 2021 Count	July 2021 %	Growth %
Let's Encrypt	1,529,965	28.12	1,510,872	28.08	0.13
Sectigo Limited	1,248,775	22.95	1,240,039	23.05	-0.42
DigiCert	588,435	10.82	578,045	10.74	0.66
GlobalSign nv-sa	257,439	4.73	254,392	4.73	0.07
Unknown	199,430	3.67	198,361	3.69	-0.59
GoDaddy.com, Inc.	178,594	3.28	177,538	3.30	-0.53
Amazon	159,740	2.94	155,378	2.89	1.66
cPanel, Inc.	140,911	2.59	139,898	2.60	-0.40
Google Trust Services LLC	89,869	1.65	76,059	1.41	16.84
Plesk	81,520	1.50	80,513	1.50	0.12
SomeOrganization	75,147	1.38	73,426	1.36	1.20
COMODO CA Limited	63,474	1.17	63,434	1.18	-1.06
Starfield Technologies, Inc.	59,769	1.10	59,057	1.10	0.07
Unizeto Technologies S.A.	45,092	0.83	43,984	0.82	1.37
Actalis S.p.A.	42,809	0.79	42,046	0.78	0.68
Cloudflare, Inc.	42,509	0.78	41,577	0.77	1.10
GoGetSSL	29,024	0.53	28,558	0.53	0.50
Parallels	27,584	0.51	27,302	0.51	-0.10
Internet2	22,940	0.42	23,231	0.43	-2.36
GEANT Vereniging	22,188	0.41	21,656	0.40	1.31
TrustAsia Technologies, Inc.	21,931	0.40	21,891	0.41	-0.94
Odin	21,727	0.40	21,662	0.40	-0.82
Gandi	20,784	0.38	22,775	0.42	-9.76
Japan Registry Services Co., Ltd.	19,145	0.35	18,949	0.35	-0.10
ddos-guard	17,170	0.32	16,345	0.30	3.87
Soluciones Corporativas IP, SL	16,213	0.30	15,956	0.30	0.47
Apache HTTP Server	15,939	0.29	15,922	0.30	-1.01
SH	15,839	0.29	15,294	0.28	2.41
Entrust, Inc.	14,206	0.26	14,344	0.27	-2.07
SECOM Trust Systems CO.,LTD.	13,948	0.26	13,886	0.26	-0.68
TERENA	13,361	0.25	13,648	0.25	-3.20
Cybertrust Japan Co., Ltd.	13,041	0.24	15,669	0.29	-17.70
Internet Widgits Pty Ltd	12,399	0.23	12,365	0.23	-0.85
Test Self SSL Company	11,991	0.22	11,754	0.22	0.88
Microsoft Corporation	10,290	0.19	10,282	0.19	-1.04
Default Company Ltd	10,258	0.19	10,067	0.19	0.76
none	10,111	0.19	10,000	0.19	-0.02
testexample	9,474	0.17	9,743	0.18	-3.85
GeoTrust Inc.	8,759	0.16	8,689	0.16	-0.32
FASTVPS	7,233	0.13	3,315	0.06	115.75
KAGOYA-JAPAN	6,769	0.12	6,638	0.12	0.83
QuoVadis Limited	6,707	0.12	6,760	0.13	-1.89
ZeroSSL	6,374	0.12	6,025	0.11	4.61
XX	6,341	0.12	6,298	0.12	-0.44
DOMENY.PL sp. z o.o	6,038	0.11	5,954	0.11	0.28
Network Solutions L.L.C.	6,005	0.11	6,014	0.11	-1.27
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	5,842	0.11	5,858	0.11	-1.39
Corporation Service Company	5,662	0.10	5,773	0.11	-3.02
WoTrus CA Limited	5,362	0.10	5,318	0.10	-0.30
dhosting.pl Sp. z o.o.	5,126	0.09	5,029	0.09	0.79
Trust Provider B.V.	5,109	0.09	5,081	0.09	-0.57
Unspecified	4,907	0.09	4,877	0.09	-0.51
home.pl S.A.	4,838	0.09	4,796	0.09	-0.25
CloudFlare, Inc.	4,712	0.09	4,906	0.09	-5.03
Mirohost	4,645	0.09	4,620	0.09	-0.58
Beijing Knownsec Information Technology Co., Ltd	3,779	0.07	3,764	0.07	-0.72
Google Trust Services	3,490	0.06	15,679	0.29	-77.99
CentOS Web Panel	3,329	0.06	3,309	0.06	-0.52
Buypass AS-983163327	3,127	0.06	3,103	0.06	-0.35
Guardian Inc.	3,034	0.06	3,025	0.06	-0.82
SSL Server	3,033	0.06	3,012	0.06	-0.43
SSL Corporation	2,754	0.05	2,697	0.05	0.97
Digital Element	2,689	0.05	2,689	0.05	-1.12
Webgarden	2,462	0.05	2,370	0.04	2.72
DivMulTech LLC	2,461	0.05	2,431	0.05	0.10
Alpiro s.r.o.	2,304	0.04	2,296	0.04	-0.77
nazwa.pl sp. z o.o.	2,254	0.04	2,225	0.04	0.17
GeoTrust, Inc.	2,244	0.04	2,252	0.04	-1.47
TAIWAN-CA	2,199	0.04	2,349	0.04	-7.43
My Company Ltd	2,170	0.04	2,101	0.04	2.13
Bitrix	2,158	0.04	2,165	0.04	-1.44
SmugMug	2,140	0.04	2,012	0.04	5.17
The Trustico Group Ltd	1,845	0.03	1,830	0.03	-0.31
thawte, Inc.	1,682	0.03	1,687	0.03	-1.41
cndns	1,643	0.03	1,621	0.03	0.22
StartCom Ltd.	1,623	0.03	1,622	0.03	-1.06
MyCompany	1,604	0.03	1,547	0.03	2.53
SecureCore	1,594	0.03	1,586	0.03	-0.62
Trustwave Holdings, Inc.	1,565	0.03	1,563	0.03	-0.99
SwissSign AG	1,541	0.03	1,497	0.03	1.79
OVH	1,489	0.03	1,490	0.03	-1.18
AfterMarket.pl	1,428	0.03	1,452	0.03	-2.75
ZONER Software, a.s.	1,422	0.03	1,402	0.03	0.29
Skok.CZ	1,421	0.03	1,415	0.03	-0.70
N/A	1,363	0.03	1,356	0.03	-0.61
NetLock Kft.	1,336	0.02	1,324	0.02	-0.22
Dattatec.com	1,310	0.02	1,290	0.02	0.42
Comodo Japan, Inc.	1,291	0.02	1,274	0.02	0.20
Bitnami	1,219	0.02	1,207	0.02	-0.13
QuoVadis Trustlink B.V.	1,149	0.02	1,177	0.02	-3.47
Acme Co	1,116	0.02	1,120	0.02	-1.47
CA	1,102	0.02	1,093	0.02	-0.30
EUNETIC GmbH	1,029	0.02	1,011	0.02	0.64
Symantec Corporation	1,004	0.02	1,001	0.02	-0.82
Beijing Xinchacha Credit Management Co., Ltd.	946	0.02	836	0.02	11.89
lxlabs	918	0.02	924	0.02	-1.76
Yandex LLC	894	0.02	877	0.02	0.80
SWsoft, Inc.	888	0.02	881	0.02	-0.33
Comodo Limited	828	0.02	837	0.02	-2.18
KAGOYA Japan Ltd	772	0.01	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.