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	October 2024 Count	October 2024 %	September 2024 Count	September 2024 %	Growth %
Let's Encrypt	3,701,625	35.32	3,606,395	35.06	0.74
Sectigo Limited	1,839,274	17.55	1,822,175	17.72	-0.93
DigiCert	885,540	8.45	871,837	8.48	-0.31
Unknown	612,439	5.84	588,900	5.73	2.07
GlobalSign nv-sa	484,286	4.62	473,566	4.60	0.37
GoDaddy.com, Inc.	236,682	2.26	237,586	2.31	-2.23
Amazon	201,623	1.92	190,923	1.86	3.64
CloudSecure Corporation	167,405	1.60	158,620	1.54	3.58
cPanel, Inc.	146,378	1.40	179,817	1.75	-20.11
Cloudflare, Inc.	143,606	1.37	149,435	1.45	-5.68
Google Trust Services	117,470	1.12	101,058	0.98	14.08
New Dream Network LLC dba Dreamhost	110,442	1.05	107,604	1.05	0.73
Gehirn Inc.	106,612	1.02	104,430	1.02	0.19
Plesk	98,369	0.94	98,318	0.96	-1.80
Unizeto Technologies S.A.	97,945	0.93	93,477	0.91	2.84
Starfield Technologies, Inc.	85,554	0.82	101,331	0.99	-17.14
SomeOrganization	70,902	0.68	64,641	0.63	7.65
GEANT Vereniging	58,215	0.56	57,533	0.56	-0.69
ddos-guard	54,985	0.52	54,112	0.53	-0.27
Microsoft Corporation	54,769	0.52	53,169	0.52	1.10
TrustAsia Technologies, Inc.	50,048	0.48	46,050	0.45	6.67
ispgateway	49,840	0.48	49,085	0.48	-0.35
Internet Widgits Pty Ltd	41,158	0.39	40,442	0.39	-0.12
home.pl S.A.	40,187	0.38	37,792	0.37	4.36
ZeroSSL	40,108	0.38	46,810	0.46	-15.91
none	40,082	0.38	39,869	0.39	-1.33
Actalis S.p.A.	36,725	0.35	35,613	0.35	1.21
Japan Registry Services Co., Ltd.	34,661	0.33	34,156	0.33	-0.40
DigiCert, Inc.	34,523	0.33	32,664	0.32	3.73
Internet2	31,376	0.30	30,903	0.30	-0.35
GoGetSSL	30,181	0.29	35,008	0.34	-15.39
Acme Co	26,610	0.25	26,003	0.25	0.44
Gandi	24,365	0.23	24,515	0.24	-2.46
Default Company Ltd	23,919	0.23	23,436	0.23	0.17
COMODO CA Limited	22,906	0.22	21,588	0.21	4.14
SH	22,620	0.22	22,527	0.22	-1.45
Unspecified	21,033	0.20	20,202	0.20	2.18
Soluciones Corporativas IP, SL	20,620	0.20	20,506	0.20	-1.31
cPanel, LLC	20,376	0.19	0	0.00	N/A
AfterMarket.pl	19,647	0.19	20,187	0.20	-4.48
nazwa.pl sp. z o.o.	18,128	0.17	17,730	0.17	0.35
Entrust, Inc.	18,113	0.17	18,186	0.18	-2.25
Parallels	16,152	0.15	16,824	0.16	-5.78
Apache HTTP Server	15,982	0.15	15,998	0.16	-1.95
SECOM Trust Systems CO.,LTD.	15,036	0.14	14,940	0.15	-1.23
World4You Internet Services GmbH	14,989	0.14	14,611	0.14	0.68
Beijing Knownsec Information Technology Co., Ltd	13,482	0.13	12,406	0.12	6.66
Test Self SSL Company	13,045	0.12	12,719	0.12	0.66
FASTPANEL	11,471	0.11	10,758	0.10	4.65
Beijing Xinchacha Credit Management Co., Ltd.	11,463	0.11	10,622	0.10	5.91
Odin	11,431	0.11	11,475	0.11	-2.23
Basekit Ltd	10,862	0.10	10,590	0.10	0.67
Cybertrust Japan Co., Ltd.	10,168	0.10	11,030	0.11	-9.53
KAGOYA-JAPAN	9,961	0.10	9,919	0.10	-1.44
cyber_Folks S.A.	9,229	0.09	8,866	0.09	2.16
Alpiro s.r.o.	9,042	0.09	9,421	0.09	-5.80
XX	8,892	0.08	8,753	0.09	-0.30
o2switch	8,057	0.08	7,828	0.08	1.02
www.sprinthost.ru	7,950	0.08	7,784	0.08	0.24
WoTrus CA Limited	7,708	0.07	7,438	0.07	1.71
dhosting.pl Sp. z o.o.	7,647	0.07	7,575	0.07	-0.92
The Trustico Group Ltd	7,544	0.07	7,198	0.07	2.86
Organization	6,359	0.06	6,032	0.06	3.46
GeoTrust Inc.	6,165	0.06	6,052	0.06	-0.02
DirectAdmin Self-Signed	6,065	0.06	5,674	0.06	4.91
CloudFlare, Inc.	5,985	0.06	5,682	0.06	3.38
Network Solutions L.L.C.	5,703	0.05	5,732	0.06	-2.35
TAIWAN-CA	5,415	0.05	5,091	0.05	4.39
Trust Provider B.V.	5,255	0.05	5,175	0.05	-0.34
Zhejiang Huluwa Digital Certification Co., Ltd.	5,121	0.05	3,361	0.03	49.54
FASTVPS	5,018	0.05	5,040	0.05	-2.28
My Company Ltd	4,946	0.05	4,816	0.05	0.79
LiteSpeedCommunity	4,898	0.05	4,428	0.04	8.56
SSL Corporation	4,718	0.05	4,409	0.04	5.02
GMO CLOUD K.K.	4,710	0.04	4,495	0.04	2.84
WEDOS Internet, a.s.	4,636	0.04	3,266	0.03	39.31
sslTrus	4,504	0.04	4,090	0.04	8.08
Hestia Control Panel	4,104	0.04	3,631	0.04	10.93
Baidu, Inc.	3,596	0.03	3,485	0.03	1.27
DivMulTech LLC	3,592	0.03	3,592	0.03	-1.86
CentOS Web Panel	3,521	0.03	3,445	0.03	0.31
x	3,177	0.03	3,116	0.03	0.07
SSL Server	3,141	0.03	3,145	0.03	-1.98
Rede Nacional de Ensino e Pesquisa - RNP	2,928	0.03	2,998	0.03	-4.15
Guardian Inc.	2,873	0.03	2,877	0.03	-1.99
Deutsche Telekom Security GmbH	2,867	0.03	2,804	0.03	0.35
Dreamcommerce S.A.	2,828	0.03	3,202	0.03	-13.32
Webador	2,824	0.03	2,650	0.03	4.59
ZONER Software, a.s.	2,739	0.03	2,699	0.03	-0.40
Certainly	2,700	0.03	2,396	0.02	10.60
Dattatec.com	2,671	0.03	2,620	0.03	0.05
DNSPod, Inc.	2,591	0.02	2,457	0.02	3.50
ACME	2,570	0.02	2,404	0.02	4.92
SecureCore	2,514	0.02	6,689	0.07	-63.11
Skok.CZ	2,507	0.02	2,467	0.02	-0.26
Comodo Japan, Inc.	2,354	0.02	2,305	0.02	0.23
Buypass AS-983163327	2,235	0.02	2,204	0.02	-0.48
Greenhost	2,233	0.02	2,201	0.02	-0.43
Fortinet Inc.	2,117	0.02	0	0.00	N/A
SpinupWP	2,115	0.02	2,038	0.02	1.85

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.