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	February 2023 Count	February 2023 %	January 2023 Count	January 2023 %	Growth %
Let's Encrypt	1,344,684	35.41	1,359,013	35.02	1.10
Sectigo Limited	459,890	12.11	477,588	12.31	-1.61
DigiCert	318,704	8.39	345,101	8.89	-5.64
GlobalSign nv-sa	216,814	5.71	217,921	5.62	1.66
Unknown	152,555	4.02	153,040	3.94	1.85
Amazon	132,235	3.48	150,157	3.87	-10.02
DigiCert, Inc.	111,079	2.92	90,944	2.34	24.80
Google Trust Services LLC	110,137	2.90	110,509	2.85	1.83
GoDaddy.com, Inc.	100,257	2.64	103,938	2.68	-1.44
cPanel, Inc.	72,126	1.90	76,238	1.96	-3.33
Plesk	66,381	1.75	68,138	1.76	-0.46
SomeOrganization	60,352	1.59	61,427	1.58	0.39
Cloudflare, Inc.	49,893	1.31	50,642	1.31	0.67
ddos-guard	39,399	1.04	39,808	1.03	1.13
Unizeto Technologies S.A.	26,737	0.70	26,607	0.69	2.68
Internet Widgits Pty Ltd	26,301	0.69	25,754	0.66	4.35
GEANT Vereniging	26,047	0.69	26,936	0.69	-1.19
TrustAsia Technologies, Inc.	25,211	0.66	25,186	0.65	2.28
GoGetSSL	21,462	0.57	21,709	0.56	1.02
SH	21,109	0.56	21,239	0.55	1.55
COMODO CA Limited	19,951	0.53	22,980	0.59	-11.29
Soluciones Corporativas IP, SL	17,664	0.47	17,713	0.46	1.90
Japan Registry Services Co., Ltd.	16,290	0.43	16,374	0.42	1.65
Starfield Technologies, Inc.	16,095	0.42	16,909	0.44	-2.74
Gandi	16,085	0.42	16,317	0.42	0.73
Apache HTTP Server	15,545	0.41	15,555	0.40	2.11
Internet2	15,405	0.41	15,969	0.41	-1.43
Parallels	14,122	0.37	14,785	0.38	-2.40
Odin	11,492	0.30	11,893	0.31	-1.27
ZeroSSL	10,713	0.28	10,884	0.28	0.57
Beijing Knownsec Information Technology Co., Ltd	10,088	0.27	9,974	0.26	3.35
Entrust, Inc.	9,935	0.26	10,376	0.27	-2.16
Microsoft Corporation	9,887	0.26	9,887	0.25	2.18
Default Company Ltd	9,670	0.25	9,820	0.25	0.62
SECOM Trust Systems CO.,LTD.	8,700	0.23	8,848	0.23	0.47
XX	7,284	0.19	7,216	0.19	3.14
dhosting.pl Sp. z o.o.	6,330	0.17	6,239	0.16	3.67
KAGOYA-JAPAN	6,086	0.16	6,198	0.16	0.33
Unspecified	5,377	0.14	5,414	0.14	1.48
none	4,958	0.13	5,188	0.13	-2.35
Cybertrust Japan Co., Ltd.	4,722	0.12	3,767	0.10	28.08
Mirohost	4,701	0.12	4,723	0.12	1.70
Alpiro s.r.o.	4,481	0.12	4,484	0.12	2.11
FASTVPS	4,324	0.11	4,281	0.11	3.20
Network Solutions L.L.C.	4,158	0.11	4,255	0.11	-0.15
Beijing Xinchacha Credit Management Co., Ltd.	4,120	0.11	3,733	0.10	12.77
GeoTrust Inc.	4,025	0.11	4,219	0.11	-2.52
CloudFlare, Inc.	4,014	0.11	4,168	0.11	-1.60
Webgarden	3,651	0.10	3,645	0.09	2.35
DivMulTech LLC	3,561	0.09	3,558	0.09	2.26
WoTrus CA Limited	3,522	0.09	3,490	0.09	3.12
home.pl S.A.	3,328	0.09	3,522	0.09	-3.45
Hotel.cz	3,306	0.09	3,305	0.09	2.21
DOMENY.PL sp. z o.o	3,174	0.08	3,162	0.08	2.57
SSL Server	3,147	0.08	3,144	0.08	2.28
My Company Ltd	3,108	0.08	3,083	0.08	3.01
Guardian Inc.	3,037	0.08	3,038	0.08	2.14
SSL Corporation	2,926	0.08	3,099	0.08	-3.53
Digital Element	2,690	0.07	2,689	0.07	2.22
FASTPANEL	2,482	0.07	2,231	0.06	13.67
Buypass AS-983163327	2,477	0.07	2,486	0.06	1.81
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	2,265	0.06	2,555	0.07	-9.42
TAIWAN-CA	2,242	0.06	2,208	0.06	3.75
CentOS Web Panel	2,226	0.06	2,241	0.06	1.49
cndns	2,217	0.06	2,207	0.06	2.64
Acme Co	2,195	0.06	2,300	0.06	-2.49
SmugMug	2,164	0.06	2,285	0.06	-3.23
Dattatec.com	1,944	0.05	1,908	0.05	4.11
Actalis S.p.A.	1,899	0.05	1,927	0.05	0.69
Rede Nacional de Ensino e Pesquisa - RNP	1,761	0.05	1,816	0.05	-0.92
Comodo Japan, Inc.	1,712	0.05	1,665	0.04	5.06
The Trustico Group Ltd	1,679	0.04	1,741	0.04	-1.46
ZONER Software, a.s.	1,627	0.04	1,619	0.04	2.68
Trust Provider B.V.	1,613	0.04	1,631	0.04	1.05
Kloxo Next Generation	1,537	0.04	1,463	0.04	7.35
CloudsRubik	1,504	0.04	1,504	0.04	2.18
Skok.CZ	1,335	0.04	1,373	0.04	-0.65
GeoTrust, Inc.	1,272	0.03	1,298	0.03	0.13
Bitrix	1,119	0.03	1,235	0.03	-7.42
TERENA	1,101	0.03	1,170	0.03	-3.85
Corporation Service Company	1,048	0.03	1,083	0.03	-1.12
RunCloud Sdn. Bhd.	1,008	0.03	989	0.03	4.14
MyCompany	1,005	0.03	1,029	0.03	-0.20
N/A	998	0.03	1,041	0.03	-2.04
Trustwave Holdings, Inc.	990	0.03	1,068	0.03	-5.28
NetLock Kft.	940	0.02	1,005	0.03	-4.43
SecureCore	910	0.02	944	0.02	-1.50
Unnamed company	891	0.02	0	0.00	N/A
Hoster	891	0.02	0	0.00	N/A
Brainy	878	0.02	868	0.02	3.36
E-TUGRA EBG BILISIM TEKNOLOJILERI VE HIZMETLERI ANONIM SIRKETI	857	0.02	736	0.02	18.98
QuoVadis Limited	836	0.02	880	0.02	-2.93
GTranslate	836	0.02	815	0.02	4.81
zzidc.com	777	0.02	754	0.02	5.30
BiziNet Pty Ltd	760	0.02	759	0.02	2.31
StartCom Ltd.	756	0.02	751	0.02	2.86
Bitnami	750	0.02	784	0.02	-2.25
sslTrus	725	0.02	662	0.02	11.90
China Financial Certification Authority	683	0.02	0	0.00	N/A
thawte, Inc.	669	0.02	696	0.02	-1.79

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.