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	September 2023 Count	September 2023 %	August 2023 Count	August 2023 %	Growth %
Let's Encrypt	1,007,543	30.95	1,031,254	30.80	0.47
Sectigo Limited	400,559	12.30	427,460	12.77	-3.64
DigiCert	289,378	8.89	290,073	8.66	2.58
GlobalSign nv-sa	220,215	6.76	221,702	6.62	2.14
Unknown	206,609	6.35	208,887	6.24	1.71
Amazon	139,422	4.28	142,547	4.26	0.58
GoDaddy.com, Inc.	85,942	2.64	88,380	2.64	-0.01
DigiCert, Inc.	66,603	2.05	73,856	2.21	-7.27
Plesk	60,919	1.87	62,032	1.85	0.98
cPanel, Inc.	58,731	1.80	60,998	1.82	-0.99
SomeOrganization	56,518	1.74	57,350	1.71	1.34
Cloudflare, Inc.	49,533	1.52	50,932	1.52	0.01
ddos-guard	43,550	1.34	42,983	1.28	4.19
Google Trust Services LLC	42,454	1.30	43,258	1.29	0.92
Unizeto Technologies S.A.	25,789	0.79	26,114	0.78	1.55
Internet Widgits Pty Ltd	25,739	0.79	25,847	0.77	2.40
GEANT Vereniging	23,989	0.74	24,483	0.73	0.75
TrustAsia Technologies, Inc.	23,575	0.72	25,634	0.77	-5.43
SH	22,095	0.68	21,972	0.66	3.41
GoGetSSL	20,583	0.63	20,793	0.62	1.79
Soluciones Corporativas IP, SL	18,226	0.56	18,167	0.54	3.16
COMODO CA Limited	16,388	0.50	18,087	0.54	-6.83
Japan Registry Services Co., Ltd.	16,116	0.50	17,542	0.52	-5.53
Gandi	15,678	0.48	15,839	0.47	1.78
Apache HTTP Server	15,398	0.47	15,437	0.46	2.57
Starfield Technologies, Inc.	13,335	0.41	14,550	0.43	-5.76
Internet2	12,849	0.39	13,152	0.39	0.46
ZeroSSL	12,517	0.38	12,147	0.36	5.96
Parallels	11,729	0.36	12,288	0.37	-1.85
Microsoft Corporation	10,150	0.31	10,172	0.30	2.61
Default Company Ltd	10,017	0.31	9,895	0.30	4.10
Beijing Knownsec Information Technology Co., Ltd	9,983	0.31	10,842	0.32	-5.32
Odin	9,570	0.29	10,051	0.30	-2.09
SECOM Trust Systems CO.,LTD.	8,123	0.25	8,269	0.25	1.01
XX	7,545	0.23	7,376	0.22	5.19
Entrust, Inc.	7,286	0.22	8,132	0.24	-7.87
dhosting.pl Sp. z o.o.	6,771	0.21	6,741	0.20	3.29
Unspecified	5,644	0.17	5,617	0.17	3.32
KAGOYA-JAPAN	5,568	0.17	5,614	0.17	1.99
Beijing Xinchacha Credit Management Co., Ltd.	5,284	0.16	5,269	0.16	3.12
Baidu, Inc.	5,113	0.16	4,448	0.13	18.20
Cybertrust Japan Co., Ltd.	4,928	0.15	4,980	0.15	1.76
Mirohost	4,658	0.14	4,699	0.14	1.93
FASTVPS	4,540	0.14	4,499	0.13	3.77
none	4,004	0.12	4,202	0.13	-2.02
CloudFlare, Inc.	3,714	0.11	3,810	0.11	0.24
Alpiro s.r.o.	3,595	0.11	3,661	0.11	0.98
DivMulTech LLC	3,587	0.11	3,584	0.11	2.92
My Company Ltd	3,548	0.11	3,518	0.11	3.71
WoTrus CA Limited	3,390	0.10	3,369	0.10	3.47
Network Solutions L.L.C.	3,338	0.10	3,411	0.10	0.63
Hotel.cz	3,317	0.10	3,317	0.10	2.83
SSL Server	3,136	0.10	3,138	0.09	2.76
GeoTrust Inc.	3,119	0.10	3,271	0.10	-1.95
Guardian Inc.	2,999	0.09	3,009	0.09	2.49
SSL Corporation	2,843	0.09	2,869	0.09	1.90
Buypass AS-983163327	2,804	0.09	2,779	0.08	3.75
Digital Element	2,686	0.08	2,686	0.08	2.83
FASTPANEL	2,643	0.08	2,625	0.08	3.53
TAIWAN-CA	2,322	0.07	2,316	0.07	3.10
home.pl S.A.	2,319	0.07	2,785	0.08	-14.38
Dattatec.com	2,177	0.07	2,154	0.06	3.93
CentOS Web Panel	1,954	0.06	1,991	0.06	0.92
Acme Co	1,905	0.06	2,022	0.06	-3.12
Zhejiang Huluwa Digital Certification Co., Ltd.	1,902	0.06	1,826	0.05	7.11
Comodo Japan, Inc.	1,882	0.06	1,908	0.06	1.43
Rede Nacional de Ensino e Pesquisa - RNP	1,703	0.05	1,757	0.05	-0.33
ZONER Software, a.s.	1,575	0.05	1,567	0.05	3.35
Kloxo Next Generation	1,570	0.05	2,100	0.06	-23.12
The Trustico Group Ltd	1,475	0.05	1,501	0.04	1.05
Actalis S.p.A.	1,359	0.04	1,412	0.04	-1.03
DBAPPSecurity Limited	1,336	0.04	1,174	0.04	17.02
Skok.CZ	1,314	0.04	1,313	0.04	2.91
MyCompany	1,302	0.04	1,371	0.04	-2.35
RunCloud Sdn. Bhd.	1,238	0.04	1,205	0.04	5.65
Trust Provider B.V.	1,198	0.04	1,237	0.04	-0.41
GeoTrust, Inc.	1,018	0.03	1,041	0.03	0.56
Traffic	989	0.03	982	0.03	3.56
Hoster	978	0.03	977	0.03	2.93
SecureCore	904	0.03	904	0.03	2.83
TERENA	898	0.03	912	0.03	1.25
N/A	892	0.03	911	0.03	0.68
Bitrix	871	0.03	901	0.03	-0.59
GTranslate	861	0.03	885	0.03	0.04
Trustwave Holdings, Inc.	817	0.03	832	0.02	0.98
sslTrus	815	0.03	836	0.02	0.25
China Financial Certification Authority	807	0.02	687	0.02	20.79
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	795	0.02	978	0.03	-16.41
zzidc.com	789	0.02	782	0.02	3.75
Brainy	768	0.02	752	0.02	5.02
BiziNet Pty Ltd	768	0.02	768	0.02	2.83
DNSPod, Inc.	684	0.02	0	0.00	N/A
Bitnami	666	0.02	689	0.02	-0.60
StartCom Ltd.	655	0.02	660	0.02	2.05
NetLock Kft.	630	0.02	691	0.02	-6.25
QuoVadis Limited	628	0.02	689	0.02	-6.27
AttHost Sp z o.o.	624	0.02	0	0.00	N/A
FNMT-RCM	614	0.02	631	0.02	0.06
Corporation Service Company	600	0.02	875	0.03	-29.49
thawte, Inc.	590	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.