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 2023 Count	January 2023 %	December 2022 Count	December 2022 %	Growth %
Let's Encrypt	1,359,013	35.02	1,385,653	34.98	0.11
Sectigo Limited	477,588	12.31	494,047	12.47	-1.32
DigiCert	345,101	8.89	364,969	9.21	-3.48
GlobalSign nv-sa	217,921	5.62	214,735	5.42	3.59
Unknown	153,040	3.94	158,943	4.01	-1.71
Amazon	150,157	3.87	147,543	3.72	3.89
Google Trust Services LLC	110,509	2.85	109,386	2.76	3.13
GoDaddy.com, Inc.	103,938	2.68	123,761	3.12	-14.27
DigiCert, Inc.	90,944	2.34	73,012	1.84	27.15
cPanel, Inc.	76,238	1.96	79,176	2.00	-1.71
Plesk	68,138	1.76	69,424	1.75	0.19
SomeOrganization	61,427	1.58	64,689	1.63	-3.07
Cloudflare, Inc.	50,642	1.31	51,003	1.29	1.35
ddos-guard	39,808	1.03	29,030	0.73	39.98
GEANT Vereniging	26,936	0.69	27,702	0.70	-0.75
Unizeto Technologies S.A.	26,607	0.69	35,549	0.90	-23.60
Internet Widgits Pty Ltd	25,754	0.66	27,289	0.69	-3.66
TrustAsia Technologies, Inc.	25,186	0.65	25,806	0.65	-0.38
COMODO CA Limited	22,980	0.59	22,873	0.58	2.55
GoGetSSL	21,709	0.56	22,001	0.56	0.72
SH	21,239	0.55	21,181	0.53	2.36
Soluciones Corporativas IP, SL	17,713	0.46	17,615	0.44	2.65
Starfield Technologies, Inc.	16,909	0.44	17,336	0.44	-0.44
Japan Registry Services Co., Ltd.	16,374	0.42	16,393	0.41	1.96
Gandi	16,317	0.42	16,104	0.41	3.43
Internet2	15,969	0.41	16,437	0.41	-0.83
Apache HTTP Server	15,555	0.40	15,583	0.39	1.89
Parallels	14,785	0.38	15,356	0.39	-1.72
Odin	11,893	0.31	12,219	0.31	-0.65
ZeroSSL	10,884	0.28	11,184	0.28	-0.66
Entrust, Inc.	10,376	0.27	10,598	0.27	-0.06
Beijing Knownsec Information Technology Co., Ltd	9,974	0.26	9,524	0.24	6.90
Microsoft Corporation	9,887	0.25	9,882	0.25	2.13
Default Company Ltd	9,820	0.25	9,806	0.25	2.22
SECOM Trust Systems CO.,LTD.	8,848	0.23	8,923	0.23	1.22
XX	7,216	0.19	7,585	0.19	-2.89
dhosting.pl Sp. z o.o.	6,239	0.16	6,210	0.16	2.55
KAGOYA-JAPAN	6,198	0.16	6,262	0.16	1.03
Unspecified	5,414	0.14	5,283	0.13	4.61
none	5,188	0.13	5,393	0.14	-1.80
Mirohost	4,723	0.12	4,756	0.12	1.37
Alpiro s.r.o.	4,484	0.12	3,989	0.10	14.74
FASTVPS	4,281	0.11	4,212	0.11	3.75
Network Solutions L.L.C.	4,255	0.11	4,353	0.11	-0.22
GeoTrust Inc.	4,219	0.11	4,394	0.11	-1.99
CloudFlare, Inc.	4,168	0.11	4,236	0.11	0.44
Cybertrust Japan Co., Ltd.	3,767	0.10	3,808	0.10	0.98
Beijing Xinchacha Credit Management Co., Ltd.	3,733	0.10	3,501	0.09	8.84
Webgarden	3,645	0.09	3,628	0.09	2.56
DivMulTech LLC	3,558	0.09	3,557	0.09	2.11
home.pl S.A.	3,522	0.09	3,864	0.10	-6.96
WoTrus CA Limited	3,490	0.09	3,517	0.09	1.29
Hotel.cz	3,305	0.09	3,304	0.08	2.11
DOMENY.PL sp. z o.o	3,162	0.08	3,626	0.09	-10.98
SSL Server	3,144	0.08	3,144	0.08	2.08
testexample	3,107	0.08	3,192	0.08	-0.64
SSL Corporation	3,099	0.08	3,090	0.08	2.37
My Company Ltd	3,083	0.08	3,022	0.08	4.14
Guardian Inc.	3,038	0.08	3,037	0.08	2.11
Digital Element	2,689	0.07	2,690	0.07	2.04
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	2,555	0.07	2,730	0.07	-4.47
Buypass AS-983163327	2,486	0.06	2,379	0.06	6.67
Acme Co	2,300	0.06	2,319	0.06	1.24
SmugMug	2,285	0.06	2,261	0.06	3.16
CentOS Web Panel	2,241	0.06	2,387	0.06	-4.17
FASTPANEL	2,231	0.06	2,410	0.06	-5.50
TAIWAN-CA	2,208	0.06	1,825	0.05	23.50
cndns	2,207	0.06	2,061	0.05	9.31
Actalis S.p.A.	1,927	0.05	5,196	0.13	-62.14
Dattatec.com	1,908	0.05	1,883	0.05	3.43
Rede Nacional de Ensino e Pesquisa - RNP	1,816	0.05	1,794	0.05	3.33
The Trustico Group Ltd	1,741	0.04	1,855	0.05	-4.20
Comodo Japan, Inc.	1,665	0.04	1,605	0.04	5.89
Trust Provider B.V.	1,631	0.04	2,203	0.06	-24.43
ZONER Software, a.s.	1,619	0.04	1,596	0.04	3.55
CloudsRubik	1,504	0.04	0	0.00	N/A
Kloxo Next Generation	1,463	0.04	1,376	0.03	8.53
Skok.CZ	1,373	0.04	1,422	0.04	-1.44
GeoTrust, Inc.	1,298	0.03	1,318	0.03	0.53
Bitrix	1,235	0.03	1,260	0.03	0.05
CA	1,186	0.03	1,183	0.03	2.34
TERENA	1,170	0.03	1,230	0.03	-2.90
Corporation Service Company	1,083	0.03	1,129	0.03	-2.08
Trustwave Holdings, Inc.	1,068	0.03	1,073	0.03	1.60
N/A	1,041	0.03	1,058	0.03	0.44
MyCompany	1,029	0.03	1,147	0.03	-8.42
NetLock Kft.	1,005	0.03	1,032	0.03	-0.59
RunCloud Sdn. Bhd.	989	0.03	906	0.02	11.43
SecureCore	944	0.02	958	0.02	0.59
QuoVadis Limited	880	0.02	916	0.02	-1.93
Brainy	868	0.02	895	0.02	-1.00
GTranslate	815	0.02	871	0.02	-4.49
Bitnami	784	0.02	828	0.02	-3.35
BiziNet Pty Ltd	759	0.02	759	0.02	2.08
zzidc.com	754	0.02	763	0.02	0.87
StartCom Ltd.	751	0.02	933	0.02	-17.83
E-TUGRA EBG BILISIM TEKNOLOJILERI VE HIZMETLERI ANONIM SIRKETI	736	0.02	723	0.02	3.91
thawte, Inc.	696	0.02	720	0.02	-1.33
sslTrus	662	0.02	0	0.00	N/A
FNMT-RCM	644	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.