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	January 2024 Count	January 2024 %	December 2023 Count	December 2023 %	Growth %
Let's Encrypt	1,756,544	31.39	1,552,372	31.21	0.59
Sectigo Limited	856,561	15.31	728,523	14.65	4.52
DigiCert	510,680	9.13	451,640	9.08	0.51
Unknown	339,314	6.06	312,916	6.29	-3.61
GlobalSign nv-sa	307,738	5.50	288,724	5.80	-5.25
cPanel, Inc.	206,771	3.70	169,306	3.40	8.56
Amazon	158,713	2.84	156,654	3.15	-9.94
GoDaddy.com, Inc.	125,410	2.24	114,185	2.30	-2.37
Cloudflare, Inc.	116,132	2.08	97,734	1.96	5.63
Plesk	75,745	1.35	72,143	1.45	-6.67
SomeOrganization	59,966	1.07	58,555	1.18	-8.96
Starfield Technologies, Inc.	58,711	1.05	46,325	0.93	12.66
Unizeto Technologies S.A.	56,083	1.00	51,368	1.03	-2.95
SecureCore	54,297	0.97	39,504	0.79	22.18
DigiCert, Inc.	51,069	0.91	56,795	1.14	-20.07
ddos-guard	46,873	0.84	45,261	0.91	-7.94
GEANT Vereniging	36,548	0.65	32,881	0.66	-1.19
New Dream Network LLC dba Dreamhost	34,425	0.62	24,639	0.50	24.20
Gehirn Inc.	34,341	0.61	24,933	0.50	22.44
TrustAsia Technologies, Inc.	32,260	0.58	29,407	0.59	-2.48
Internet Widgits Pty Ltd	30,969	0.55	29,700	0.60	-7.31
Microsoft Corporation	27,502	0.49	22,599	0.45	8.18
GoGetSSL	23,435	0.42	22,221	0.45	-6.25
ZeroSSL	23,269	0.42	17,301	0.35	19.56
Japan Registry Services Co., Ltd.	23,161	0.41	21,580	0.43	-4.59
SH	22,123	0.40	21,894	0.44	-10.18
none	20,635	0.37	16,481	0.33	11.30
Internet2	20,493	0.37	18,439	0.37	-1.20
Gandi	19,511	0.35	18,558	0.37	-6.54
Soluciones Corporativas IP, SL	18,865	0.34	18,630	0.37	-9.98
COMODO CA Limited	18,775	0.34	17,911	0.36	-6.82
ispgateway	17,174	0.31	12,585	0.25	21.31
Apache HTTP Server	15,556	0.28	15,513	0.31	-10.86
Default Company Ltd	13,928	0.25	11,979	0.24	3.36
Parallels	12,942	0.23	12,395	0.25	-7.18
Google Trust Services LLC	12,819	0.23	11,392	0.23	0.03
Acme Co	12,288	0.22	9,511	0.19	14.85
Entrust, Inc.	12,280	0.22	10,924	0.22	-0.07
SECOM Trust Systems CO.,LTD.	12,046	0.22	11,211	0.23	-4.49
Beijing Knownsec Information Technology Co., Ltd	11,640	0.21	11,616	0.23	-10.92
Actalis S.p.A.	11,316	0.20	8,511	0.17	18.19
Odin	10,587	0.19	10,280	0.21	-8.45
Unspecified	9,964	0.18	8,916	0.18	-0.66
AfterMarket.pl	9,025	0.16	7,106	0.14	12.90
XX	7,759	0.14	7,847	0.16	-12.10
Cybertrust Japan Co., Ltd.	7,474	0.13	6,863	0.14	-3.19
KAGOYA-JAPAN	7,136	0.13	6,755	0.14	-6.09
dhosting.pl Sp. z o.o.	6,858	0.12	6,779	0.14	-10.07
Beijing Xinchacha Credit Management Co., Ltd.	6,700	0.12	6,609	0.13	-9.88
nazwa.pl sp. z o.o.	6,423	0.11	4,848	0.10	17.77
FASTPANEL	5,769	0.10	5,035	0.10	1.85
Alpiro s.r.o.	5,688	0.10	5,184	0.10	-2.46
home.pl S.A.	4,715	0.08	10,967	0.22	-61.78
Baidu, Inc.	4,714	0.08	5,397	0.11	-22.36
GeoTrust Inc.	4,473	0.08	4,141	0.08	-3.98
FASTVPS	4,465	0.08	4,373	0.09	-9.24
WoTrus CA Limited	4,452	0.08	4,096	0.08	-3.38
World4You Internet Services GmbH	4,194	0.07	3,015	0.06	23.66
Network Solutions L.L.C.	4,083	0.07	3,984	0.08	-8.90
Test Self SSL Company	3,871	0.07	2,842	0.06	21.08
My Company Ltd	3,830	0.07	3,770	0.08	-9.69
SSL Corporation	3,787	0.07	3,538	0.07	-4.85
TAIWAN-CA	3,603	0.06	3,295	0.07	-2.80
DivMulTech LLC	3,587	0.06	3,587	0.07	-11.11
The Trustico Group Ltd	3,453	0.06	2,938	0.06	4.48
SSL Server	3,142	0.06	3,142	0.06	-11.11
Guardian Inc.	2,975	0.05	2,981	0.06	-11.29
WEDOS Internet, a.s.	2,891	0.05	2,077	0.04	23.73
Basekit Ltd	2,699	0.05	1,956	0.04	22.66
www.sprinthost.ru	2,635	0.05	1,921	0.04	21.93
Zhejiang Huluwa Digital Certification Co., Ltd.	2,550	0.05	2,284	0.05	-0.75
Rede Nacional de Ensino e Pesquisa - RNP	2,550	0.05	2,353	0.05	-3.66
CentOS Web Panel	2,438	0.04	2,316	0.05	-6.42
Certainly	2,426	0.04	1,907	0.04	13.09
Trust Provider B.V.	2,370	0.04	2,060	0.04	2.27
Dattatec.com	2,227	0.04	2,214	0.04	-10.58
Buypass AS-983163327	2,158	0.04	2,127	0.04	-9.81
CloudFlare, Inc.	1,974	0.04	3,946	0.08	-55.53
Comodo Japan, Inc.	1,945	0.03	1,954	0.04	-11.52
ZONER Software, a.s.	1,934	0.03	1,844	0.04	-6.77
Dreamcommerce S.A.	1,848	0.03	1,372	0.03	19.73
Skok.CZ	1,613	0.03	1,535	0.03	-6.59
sslTrus	1,533	0.03	1,347	0.03	1.17
GMO CLOUD K.K.	1,480	0.03	1,097	0.02	19.93
Kloxo Next Generation	1,472	0.03	1,455	0.03	-10.07
DBAPPSecurity Limited	1,402	0.03	1,284	0.03	-2.94
MyCompany	1,319	0.02	1,275	0.03	-8.04
Deutsche Telekom Security GmbH	1,305	0.02	1,021	0.02	13.62
Bitrix	1,305	0.02	1,090	0.02	6.43
RunCloud Sdn. Bhd.	1,282	0.02	1,253	0.03	-9.05
Hestia Control Panel	1,238	0.02	942	0.02	16.83
QuoVadis Limited	1,228	0.02	1,115	0.02	-2.10
DNSPod, Inc.	1,177	0.02	1,043	0.02	0.31
N/A	1,101	0.02	1,040	0.02	-5.89
x	1,092	0.02	0	0.00	N/A
Trustwave Holdings, Inc.	1,016	0.02	1,047	0.02	-13.74
GeoTrust, Inc.	1,014	0.02	1,002	0.02	-10.04
China Financial Certification Authority	1,002	0.02	929	0.02	-4.12
Fortinet	999	0.02	0	0.00	N/A
Corporation Service Company	984	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.