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	May 2022 Count	May 2022 %	April 2022 Count	April 2022 %	Growth %
Let's Encrypt	1,518,782	34.75	1,532,801	34.86	-0.31
Sectigo Limited	593,784	13.59	589,082	13.40	1.42
DigiCert	470,035	10.76	476,152	10.83	-0.68
GlobalSign nv-sa	218,284	4.99	215,374	4.90	1.97
Unknown	157,942	3.61	157,106	3.57	1.15
Amazon	148,602	3.40	150,288	3.42	-0.51
GoDaddy.com, Inc.	138,691	3.17	139,801	3.18	-0.18
cPanel, Inc.	106,865	2.45	121,459	2.76	-11.47
Google Trust Services LLC	103,735	2.37	103,146	2.35	1.19
Plesk	81,950	1.88	81,204	1.85	1.54
SomeOrganization	73,486	1.68	72,869	1.66	1.47
Cloudflare, Inc.	52,747	1.21	53,083	1.21	-0.02
Actalis S.p.A.	46,602	1.07	46,250	1.05	1.38
Unizeto Technologies S.A.	45,390	1.04	43,075	0.98	6.02
ddos-guard	32,288	0.74	22,988	0.52	41.32
GEANT Vereniging	28,746	0.66	27,847	0.63	3.86
COMODO CA Limited	26,772	0.61	32,677	0.74	-17.57
TrustAsia Technologies, Inc.	26,064	0.60	25,867	0.59	1.38
GoGetSSL	22,741	0.52	22,974	0.52	-0.41
SH	19,649	0.45	19,324	0.44	2.31
Parallels	19,634	0.45	19,997	0.45	-1.21
Starfield Technologies, Inc.	19,441	0.44	19,606	0.45	-0.23
Internet2	18,989	0.43	19,023	0.43	0.43
Japan Registry Services Co., Ltd.	18,663	0.43	18,585	0.42	1.04
Soluciones Corporativas IP, SL	16,905	0.39	16,709	0.38	1.79
Gandi	16,831	0.39	16,833	0.38	0.60
Apache HTTP Server	15,609	0.36	15,613	0.36	0.59
Odin	14,053	0.32	15,142	0.34	-6.62
SECOM Trust Systems CO.,LTD.	12,180	0.28	12,153	0.28	0.84
Entrust, Inc.	12,107	0.28	11,181	0.25	8.95
ZeroSSL	11,841	0.27	11,795	0.27	1.01
Microsoft Corporation	10,074	0.23	10,059	0.23	0.76
Default Company Ltd	9,775	0.22	9,767	0.22	0.70
Beijing Knownsec Information Technology Co., Ltd	9,608	0.22	7,795	0.18	24.02
CloudFlare, Inc.	8,857	0.20	8,719	0.20	2.21
FASTVPS	7,639	0.17	7,579	0.17	1.41
none	7,153	0.16	7,260	0.17	-0.87
XX	6,794	0.16	6,582	0.15	3.86
dhosting.pl Sp. z o.o.	6,614	0.15	6,549	0.15	1.61
KAGOYA-JAPAN	6,575	0.15	6,558	0.15	0.88
Internet Widgits Pty Ltd	6,365	0.15	6,182	0.14	3.59
Unspecified	5,442	0.12	5,416	0.12	1.10
GeoTrust Inc.	5,331	0.12	5,565	0.13	-3.62
Network Solutions L.L.C.	5,019	0.11	5,054	0.11	-0.08
home.pl S.A.	4,998	0.11	5,037	0.11	-0.16
Mirohost	4,783	0.11	4,766	0.11	0.97
DOMENY.PL sp. z o.o	4,698	0.11	4,690	0.11	0.79
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	4,108	0.09	4,311	0.10	-4.12
Cybertrust Japan Co., Ltd.	4,065	0.09	4,083	0.09	0.17
testexample	4,013	0.09	6,404	0.15	-36.95
Alpiro s.r.o.	3,686	0.08	3,586	0.08	3.42
Corporation Service Company	3,644	0.08	4,524	0.10	-18.96
DivMulTech LLC	3,366	0.08	3,340	0.08	1.40
TERENA	3,339	0.08	4,086	0.09	-17.78
QuoVadis Limited	3,328	0.08	3,489	0.08	-4.03
Webgarden	3,239	0.07	3,132	0.07	4.05
WoTrus CA Limited	3,217	0.07	5,940	0.14	-45.51
SSL Server	3,134	0.07	3,131	0.07	0.71
SSL Corporation	3,122	0.07	3,131	0.07	0.33
Guardian Inc.	3,039	0.07	3,040	0.07	0.58
CentOS Web Panel	2,730	0.06	2,692	0.06	2.03
Digital Element	2,692	0.06	2,693	0.06	0.58
My Company Ltd	2,640	0.06	2,609	0.06	1.81
Buypass AS-983163327	2,494	0.06	2,604	0.06	-3.64
Trust Provider B.V.	2,458	0.06	3,045	0.07	-18.78
Beijing Xinchacha Credit Management Co., Ltd.	2,375	0.05	2,277	0.05	4.94
SmugMug	2,240	0.05	2,228	0.05	1.16
TAIWAN-CA	2,133	0.05	2,134	0.05	0.57
The Trustico Group Ltd	2,106	0.05	2,147	0.05	-1.31
cndns	1,927	0.04	1,730	0.04	12.07
FASTPANEL	1,830	0.04	1,483	0.03	24.16
Dattatec.com	1,654	0.04	1,618	0.04	2.85
GeoTrust, Inc.	1,609	0.04	1,633	0.04	-0.86
Bitrix	1,607	0.04	1,645	0.04	-1.71
ZONER Software, a.s.	1,531	0.04	1,516	0.03	1.61
Comodo Japan, Inc.	1,425	0.03	1,376	0.03	4.20
Skok.CZ	1,400	0.03	1,393	0.03	1.12
SecureCore	1,307	0.03	1,312	0.03	0.23
NetLock Kft.	1,280	0.03	1,301	0.03	-1.01
N/A	1,273	0.03	1,273	0.03	0.61
Trustwave Holdings, Inc.	1,242	0.03	1,244	0.03	0.45
Acme Co	1,219	0.03	1,208	0.03	1.53
MyCompany	1,183	0.03	1,178	0.03	1.04
CA	1,169	0.03	1,161	0.03	1.31
StartCom Ltd.	1,078	0.02	1,089	0.02	-0.40
Bitnami	990	0.02	1,033	0.02	-3.57
unknown	949	0.02	830	0.02	15.04
thawte, Inc.	903	0.02	943	0.02	-3.65
aliyun	887	0.02	873	0.02	2.23
Brainy	854	0.02	821	0.02	4.66
SwissSign AG	815	0.02	869	0.02	-5.64
Symantec Corporation	752	0.02	767	0.02	-1.35
China Financial Certification Authority	745	0.02	734	0.02	2.12
zzidc.com	708	0.02	689	0.02	3.39
KAGOYA Japan Ltd	684	0.02	697	0.02	-1.26
EUNETIC GmbH	684	0.02	715	0.02	-3.75
RunCloud Sdn. Bhd.	673	0.02	0	0.00	N/A
FNMT-RCM	672	0.02	658	0.01	2.76
Heinlein Support GmbH	650	0.01	0	0.00	N/A
iptoX GmbH	649	0.01	654	0.01	-0.15

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.