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 2023 Count	March 2023 %	February 2023 Count	February 2023 %	Growth %
Let's Encrypt	1,283,755	34.61	1,344,684	35.41	-2.26
Sectigo Limited	450,179	12.14	459,890	12.11	0.22
DigiCert	305,288	8.23	318,704	8.39	-1.93
GlobalSign nv-sa	219,726	5.92	216,814	5.71	3.76
Unknown	152,117	4.10	152,555	4.02	2.09
Amazon	140,468	3.79	132,235	3.48	8.76
DigiCert, Inc.	113,216	3.05	111,079	2.92	4.35
Google Trust Services LLC	110,226	2.97	110,137	2.90	2.46
GoDaddy.com, Inc.	98,938	2.67	100,257	2.64	1.04
cPanel, Inc.	69,928	1.89	72,126	1.90	-0.74
Plesk	64,705	1.74	66,381	1.75	-0.20
SomeOrganization	57,365	1.55	60,352	1.59	-2.69
Cloudflare, Inc.	49,802	1.34	49,893	1.31	2.20
ddos-guard	39,516	1.07	39,399	1.04	2.69
Unizeto Technologies S.A.	26,424	0.71	26,737	0.70	1.18
Internet Widgits Pty Ltd	25,752	0.69	26,301	0.69	0.24
GEANT Vereniging	25,272	0.68	26,047	0.69	-0.66
TrustAsia Technologies, Inc.	24,128	0.65	25,211	0.66	-2.02
GoGetSSL	21,276	0.57	21,462	0.57	1.49
SH	21,159	0.57	21,109	0.56	2.62
COMODO CA Limited	18,515	0.50	19,951	0.53	-4.99
Japan Registry Services Co., Ltd.	17,575	0.47	16,290	0.43	10.46
Soluciones Corporativas IP, SL	17,549	0.47	17,664	0.47	1.72
Gandi	15,675	0.42	16,085	0.42	-0.23
Starfield Technologies, Inc.	15,587	0.42	16,095	0.42	-0.85
Apache HTTP Server	15,532	0.42	15,545	0.41	2.30
Internet2	15,027	0.41	15,405	0.41	-0.13
Parallels	13,781	0.37	14,122	0.37	-0.09
Odin	11,231	0.30	11,492	0.30	0.06
ZeroSSL	10,445	0.28	10,713	0.28	-0.18
Beijing Knownsec Information Technology Co., Ltd	10,037	0.27	10,088	0.27	1.86
Microsoft Corporation	9,887	0.27	9,887	0.26	2.38
Entrust, Inc.	9,804	0.26	9,935	0.26	1.03
Default Company Ltd	9,650	0.26	9,670	0.25	2.17
SECOM Trust Systems CO.,LTD.	8,625	0.23	8,700	0.23	1.50
XX	7,218	0.19	7,284	0.19	1.45
dhosting.pl Sp. z o.o.	6,296	0.17	6,330	0.17	1.83
KAGOYA-JAPAN	6,011	0.16	6,086	0.16	1.12
Unspecified	5,317	0.14	5,377	0.14	1.24
none	4,815	0.13	4,958	0.13	-0.57
Mirohost	4,689	0.13	4,701	0.12	2.12
Cybertrust Japan Co., Ltd.	4,646	0.13	4,722	0.12	0.73
FASTVPS	4,291	0.12	4,324	0.11	1.60
Beijing Xinchacha Credit Management Co., Ltd.	4,154	0.11	4,120	0.11	3.23
CloudFlare, Inc.	4,153	0.11	4,014	0.11	5.93
Network Solutions L.L.C.	4,091	0.11	4,158	0.11	0.73
GeoTrust Inc.	3,898	0.11	4,025	0.11	-0.85
Alpiro s.r.o.	3,883	0.10	4,481	0.12	-11.28
Webgarden	3,650	0.10	3,651	0.10	2.35
WoTrus CA Limited	3,637	0.10	3,522	0.09	5.73
DivMulTech LLC	3,562	0.10	3,561	0.09	2.41
Hotel.cz	3,307	0.09	3,306	0.09	2.41
home.pl S.A.	3,195	0.09	3,328	0.09	-1.71
DOMENY.PL sp. z o.o	3,173	0.09	3,174	0.08	2.35
SSL Server	3,146	0.08	3,147	0.08	2.35
My Company Ltd	3,133	0.08	3,108	0.08	3.21
Guardian Inc.	3,031	0.08	3,037	0.08	2.18
SSL Corporation	2,890	0.08	2,926	0.08	1.12
Digital Element	2,690	0.07	2,690	0.07	2.38
Buypass AS-983163327	2,427	0.07	2,477	0.07	0.32
FASTPANEL	2,422	0.07	2,482	0.07	-0.09
SmugMug	2,293	0.06	2,164	0.06	8.49
cndns	2,220	0.06	2,217	0.06	2.52
TAIWAN-CA	2,153	0.06	2,242	0.06	-1.68
Acme Co	2,125	0.06	2,195	0.06	-0.88
CentOS Web Panel	2,103	0.06	2,226	0.06	-3.28
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	2,094	0.06	2,265	0.06	-5.35
Dattatec.com	1,951	0.05	1,944	0.05	2.75
Actalis S.p.A.	1,864	0.05	1,899	0.05	0.50
Rede Nacional de Ensino e Pesquisa - RNP	1,754	0.05	1,761	0.05	1.98
Comodo Japan, Inc.	1,736	0.05	1,712	0.05	3.82
testexample	1,698	0.05	0	0.00	N/A
The Trustico Group Ltd	1,602	0.04	1,679	0.04	-2.31
Kloxo Next Generation	1,554	0.04	1,537	0.04	3.51
ZONER Software, a.s.	1,510	0.04	1,627	0.04	-4.98
Trust Provider B.V.	1,447	0.04	1,613	0.04	-8.15
Skok.CZ	1,317	0.04	1,335	0.04	1.00
GeoTrust, Inc.	1,152	0.03	1,272	0.03	-7.28
MyCompany	1,077	0.03	1,005	0.03	9.72
Bitrix	1,046	0.03	1,119	0.03	-4.30
TERENA	1,033	0.03	1,101	0.03	-3.94
Trustwave Holdings, Inc.	1,030	0.03	990	0.03	6.52
Corporation Service Company	1,018	0.03	1,048	0.03	-0.55
RunCloud Sdn. Bhd.	1,009	0.03	1,008	0.03	2.48
N/A	970	0.03	998	0.03	-0.49
NetLock Kft.	950	0.03	940	0.02	3.47
SecureCore	914	0.02	910	0.02	2.83
Hoster	889	0.02	891	0.02	2.15
Unnamed company	875	0.02	891	0.02	0.54
E-TUGRA EBG BILISIM TEKNOLOJILERI VE HIZMETLERI ANONIM SIRKETI	861	0.02	857	0.02	2.86
Brainy	858	0.02	878	0.02	0.05
GTranslate	842	0.02	836	0.02	3.12
QuoVadis Limited	778	0.02	836	0.02	-4.72
zzidc.com	770	0.02	777	0.02	1.46
BiziNet Pty Ltd	761	0.02	760	0.02	2.52
StartCom Ltd.	751	0.02	756	0.02	1.70
Bitnami	745	0.02	750	0.02	1.70
sslTrus	697	0.02	725	0.02	-1.57
China Financial Certification Authority	664	0.02	683	0.02	-0.47
thawte, Inc.	649	0.02	669	0.02	-0.68

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.