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	March 2024 Count	March 2024 %	February 2024 Count	February 2024 %	Growth %
Let's Encrypt	2,491,600	32.31	2,137,271	31.58	2.32
Sectigo Limited	1,273,366	16.51	1,081,378	15.98	3.35
DigiCert	704,921	9.14	622,517	9.20	-0.62
Unknown	433,183	5.62	392,784	5.80	-3.21
GlobalSign nv-sa	383,890	4.98	348,968	5.16	-3.45
cPanel, Inc.	296,306	3.84	267,916	3.96	-2.93
GoDaddy.com, Inc.	179,568	2.33	157,801	2.33	-0.13
Amazon	174,708	2.27	170,479	2.52	-10.06
Cloudflare, Inc.	154,258	2.00	144,271	2.13	-6.16
Starfield Technologies, Inc.	104,055	1.35	81,413	1.20	12.17
SecureCore	103,039	1.34	80,190	1.18	12.77
Plesk	83,289	1.08	83,456	1.23	-12.41
Unizeto Technologies S.A.	71,254	0.92	64,462	0.95	-2.99
New Dream Network LLC dba Dreamhost	68,998	0.89	53,970	0.80	12.20
Gehirn Inc.	65,523	0.85	51,043	0.75	12.66
SomeOrganization	63,640	0.83	62,272	0.92	-10.31
ddos-guard	49,086	0.64	48,016	0.71	-10.28
GEANT Vereniging	46,770	0.61	42,396	0.63	-3.18
Microsoft Corporation	37,522	0.49	32,670	0.48	0.80
none	35,383	0.46	28,779	0.43	7.91
TrustAsia Technologies, Inc.	35,126	0.46	35,307	0.52	-12.68
Internet Widgits Pty Ltd	34,692	0.45	32,527	0.48	-6.39
ispgateway	32,179	0.42	25,698	0.38	9.90
ZeroSSL	30,199	0.39	26,133	0.39	1.42
Japan Registry Services Co., Ltd.	28,302	0.37	25,936	0.38	-4.23
GoGetSSL	27,512	0.36	25,862	0.38	-6.64
Internet2	26,421	0.34	23,694	0.35	-2.13
DigiCert, Inc.	26,356	0.34	39,406	0.58	-41.30
home.pl S.A.	24,129	0.31	19,550	0.29	8.32
SH	21,988	0.29	22,305	0.33	-13.48
Gandi	21,630	0.28	20,840	0.31	-8.91
COMODO CA Limited	20,777	0.27	19,009	0.28	-4.07
Actalis S.p.A.	20,740	0.27	16,494	0.24	10.36
Default Company Ltd	20,578	0.27	17,581	0.26	2.73
Soluciones Corporativas IP, SL	19,626	0.25	19,340	0.29	-10.94
Acme Co	19,462	0.25	16,378	0.24	4.29
Google Trust Services LLC	19,251	0.25	14,143	0.21	19.46
Apache HTTP Server	15,759	0.20	15,664	0.23	-11.70
Entrust, Inc.	15,506	0.20	14,188	0.21	-4.08
Parallels	15,001	0.19	14,105	0.21	-6.66
AfterMarket.pl	14,568	0.19	12,325	0.18	3.74
SECOM Trust Systems CO.,LTD.	14,215	0.18	13,287	0.20	-6.10
Unspecified	13,463	0.17	11,752	0.17	0.54
Beijing Knownsec Information Technology Co., Ltd	12,675	0.16	12,534	0.19	-11.25
nazwa.pl sp. z o.o.	11,623	0.15	9,347	0.14	9.14
Odin	11,542	0.15	11,142	0.16	-9.08
Cybertrust Japan Co., Ltd.	9,059	0.12	8,459	0.12	-6.01
KAGOYA-JAPAN	8,607	0.11	8,022	0.12	-5.83
Beijing Xinchacha Credit Management Co., Ltd.	8,496	0.11	8,104	0.12	-7.99
World4You Internet Services GmbH	8,325	0.11	6,445	0.10	13.37
XX	8,216	0.11	8,119	0.12	-11.19
Alpiro s.r.o.	7,758	0.10	6,891	0.10	-1.19
Test Self SSL Company	7,729	0.10	5,925	0.09	14.49
dhosting.pl Sp. z o.o.	7,062	0.09	6,958	0.10	-10.92
FASTPANEL	6,749	0.09	6,456	0.10	-8.25
Basekit Ltd	5,889	0.08	4,370	0.06	18.27
Baidu, Inc.	5,564	0.07	5,451	0.08	-10.42
GeoTrust Inc.	5,518	0.07	5,193	0.08	-6.74
WoTrus CA Limited	5,426	0.07	5,033	0.07	-5.38
WEDOS Internet, a.s.	5,085	0.07	4,181	0.06	6.74
Network Solutions L.L.C.	5,034	0.07	4,686	0.07	-5.72
The Trustico Group Ltd	4,967	0.06	4,250	0.06	2.57
CloudFlare, Inc.	4,963	0.06	2,268	0.03	92.05
FASTVPS	4,887	0.06	4,747	0.07	-9.65
www.sprinthost.ru	4,881	0.06	3,858	0.06	11.04
SSL Corporation	4,774	0.06	4,290	0.06	-2.33
TAIWAN-CA	4,624	0.06	4,125	0.06	-1.62
Trust Provider B.V.	4,596	0.06	2,732	0.04	47.65
My Company Ltd	4,133	0.05	3,971	0.06	-8.65
Certainly	3,956	0.05	3,244	0.05	7.03
DivMulTech LLC	3,589	0.05	3,588	0.05	-12.21
SSL Server	3,144	0.04	3,144	0.05	-12.23
Zhejiang Huluwa Digital Certification Co., Ltd.	3,106	0.04	2,800	0.04	-2.64
Guardian Inc.	2,936	0.04	2,941	0.04	-12.38
Rede Nacional de Ensino e Pesquisa - RNP	2,915	0.04	2,971	0.04	-13.89
CentOS Web Panel	2,905	0.04	2,803	0.04	-9.04
GMO CLOUD K.K.	2,737	0.04	2,149	0.03	11.78
Dreamcommerce S.A.	2,551	0.03	2,285	0.03	-2.02
Organization	2,532	0.03	2,141	0.03	3.79
Dattatec.com	2,331	0.03	2,282	0.03	-10.35
Buypass AS-983163327	2,247	0.03	2,224	0.03	-11.33
ZONER Software, a.s.	2,241	0.03	2,120	0.03	-7.23
sslTrus	2,232	0.03	1,888	0.03	3.76
Hestia Control Panel	2,211	0.03	1,752	0.03	10.76
Comodo Japan, Inc.	2,070	0.03	2,000	0.03	-9.16
Deutsche Telekom Security GmbH	2,054	0.03	1,748	0.03	3.13
x	2,011	0.03	1,575	0.02	12.06
Skok.CZ	1,961	0.03	1,790	0.03	-3.85
Bitrix	1,709	0.02	1,498	0.02	0.13
DNSPod, Inc.	1,647	0.02	1,451	0.02	-0.38
Webador	1,623	0.02	1,237	0.02	15.15
cyber_Folks S.A.	1,608	0.02	1,188	0.02	18.79
MyCompany	1,545	0.02	1,475	0.02	-8.07
QuoVadis Limited	1,487	0.02	1,431	0.02	-8.80
DBAPPSecurity Limited	1,485	0.02	1,364	0.02	-4.45
Kloxo Next Generation	1,441	0.02	1,456	0.02	-13.14
RunCloud Sdn. Bhd.	1,417	0.02	1,372	0.02	-9.36
unknown	1,385	0.02	1,191	0.02	2.06
SpinupWP	1,384	0.02	0	0.00	N/A
N/A	1,359	0.02	1,158	0.02	3.00

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.