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	April 2022 Count	April 2022 %	March 2022 Count	March 2022 %	Growth %
Let's Encrypt	1,532,801	34.86	1,523,187	34.75	0.32
Sectigo Limited	589,082	13.40	589,055	13.44	-0.31
DigiCert	476,152	10.83	480,147	10.95	-1.14
GlobalSign nv-sa	215,374	4.90	215,636	4.92	-0.44
Unknown	157,106	3.57	153,490	3.50	2.03
Amazon	150,288	3.42	145,053	3.31	3.28
GoDaddy.com, Inc.	139,801	3.18	144,488	3.30	-3.55
cPanel, Inc.	121,459	2.76	121,575	2.77	-0.41
Google Trust Services LLC	103,146	2.35	102,562	2.34	0.25
Plesk	81,204	1.85	79,315	1.81	2.06
SomeOrganization	72,869	1.66	72,306	1.65	0.46
Cloudflare, Inc.	53,083	1.21	52,794	1.20	0.23
Actalis S.p.A.	46,250	1.05	45,900	1.05	0.45
Unizeto Technologies S.A.	43,075	0.98	42,875	0.98	0.15
COMODO CA Limited	32,677	0.74	35,058	0.80	-7.08
GEANT Vereniging	27,847	0.63	27,518	0.63	0.88
TrustAsia Technologies, Inc.	25,867	0.59	24,882	0.57	3.63
ddos-guard	22,988	0.52	22,577	0.52	1.50
GoGetSSL	22,974	0.52	22,942	0.52	-0.17
Parallels	19,997	0.45	20,147	0.46	-1.06
Starfield Technologies, Inc.	19,606	0.45	19,687	0.45	-0.72
SH	19,324	0.44	19,351	0.44	-0.45
Internet2	19,023	0.43	18,981	0.43	-0.09
Japan Registry Services Co., Ltd.	18,585	0.42	18,450	0.42	0.42
Gandi	16,833	0.38	16,939	0.39	-0.94
Soluciones Corporativas IP, SL	16,709	0.38	16,573	0.38	0.50
Apache HTTP Server	15,613	0.36	15,747	0.36	-1.16
Odin	15,142	0.34	15,228	0.35	-0.88
SECOM Trust Systems CO.,LTD.	12,153	0.28	12,152	0.28	-0.31
ZeroSSL	11,795	0.27	12,375	0.28	-4.99
Entrust, Inc.	11,181	0.25	12,251	0.28	-9.02
Microsoft Corporation	10,059	0.23	10,154	0.23	-1.25
Default Company Ltd	9,767	0.22	9,836	0.22	-1.01
CloudFlare, Inc.	8,719	0.20	8,620	0.20	0.83
Beijing Knownsec Information Technology Co., Ltd	7,795	0.18	6,134	0.14	26.68
FASTVPS	7,579	0.17	7,523	0.17	0.43
none	7,260	0.17	7,379	0.17	-1.92
XX	6,582	0.15	6,553	0.15	0.13
KAGOYA-JAPAN	6,558	0.15	6,560	0.15	-0.34
dhosting.pl Sp. z o.o.	6,549	0.15	6,447	0.15	1.26
testexample	6,404	0.15	4,315	0.10	47.95
Internet Widgits Pty Ltd	6,182	0.14	6,112	0.14	0.83
WoTrus CA Limited	5,940	0.14	5,490	0.13	7.86
GeoTrust Inc.	5,565	0.13	5,592	0.13	-0.80
Unspecified	5,416	0.12	5,346	0.12	0.99
Network Solutions L.L.C.	5,054	0.11	5,062	0.12	-0.47
home.pl S.A.	5,037	0.11	4,433	0.10	13.27
Mirohost	4,766	0.11	4,743	0.11	0.17
DOMENY.PL sp. z o.o	4,690	0.11	4,643	0.11	0.70
Corporation Service Company	4,524	0.10	4,910	0.11	-8.15
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	4,311	0.10	4,344	0.10	-1.07
TERENA	4,086	0.09	4,506	0.10	-9.61
Cybertrust Japan Co., Ltd.	4,083	0.09	4,073	0.09	-0.07
Alpiro s.r.o.	3,586	0.08	3,556	0.08	0.53
QuoVadis Limited	3,489	0.08	3,531	0.08	-1.50
DivMulTech LLC	3,340	0.08	3,297	0.08	0.99
Webgarden	3,132	0.07	3,091	0.07	1.01
SSL Server	3,131	0.07	3,128	0.07	-0.22
SSL Corporation	3,131	0.07	3,107	0.07	0.46
Trust Provider B.V.	3,045	0.07	3,096	0.07	-1.96
Guardian Inc.	3,040	0.07	3,039	0.07	-0.28
Digital Element	2,693	0.06	2,693	0.06	-0.31
CentOS Web Panel	2,692	0.06	2,691	0.06	-0.28
My Company Ltd	2,609	0.06	2,544	0.06	2.23
Buypass AS-983163327	2,604	0.06	2,539	0.06	2.24
Beijing Xinchacha Credit Management Co., Ltd.	2,277	0.05	1,925	0.04	17.91
SmugMug	2,228	0.05	2,223	0.05	-0.09
The Trustico Group Ltd	2,147	0.05	2,174	0.05	-1.55
TAIWAN-CA	2,134	0.05	2,088	0.05	1.88
cndns	1,730	0.04	1,722	0.04	0.15
Bitrix	1,645	0.04	1,644	0.04	-0.25
GeoTrust, Inc.	1,633	0.04	1,624	0.04	0.24
Dattatec.com	1,618	0.04	1,590	0.04	1.44
ZONER Software, a.s.	1,516	0.03	1,506	0.03	0.35
FASTPANEL	1,483	0.03	1,400	0.03	5.60
Skok.CZ	1,393	0.03	1,396	0.03	-0.53
Comodo Japan, Inc.	1,376	0.03	1,359	0.03	0.93
SecureCore	1,312	0.03	1,425	0.03	-8.22
NetLock Kft.	1,301	0.03	1,320	0.03	-1.75
N/A	1,273	0.03	1,270	0.03	-0.08
Trustwave Holdings, Inc.	1,244	0.03	1,260	0.03	-1.58
Acme Co	1,208	0.03	1,176	0.03	2.40
MyCompany	1,178	0.03	1,165	0.03	0.80
CA	1,161	0.03	1,149	0.03	0.73
StartCom Ltd.	1,089	0.02	1,094	0.02	-0.77
Bitnami	1,033	0.02	1,039	0.02	-0.89
thawte, Inc.	943	0.02	926	0.02	1.52
aliyun	873	0.02	851	0.02	2.26
Yandex LLC	871	0.02	977	0.02	-11.13
SwissSign AG	869	0.02	878	0.02	-1.34
unknown	830	0.02	753	0.02	9.88
Brainy	821	0.02	821	0.02	-0.31
Symantec Corporation	767	0.02	773	0.02	-1.09
China Financial Certification Authority	734	0.02	673	0.02	8.72
Hoster	733	0.02	725	0.02	0.79
EUNETIC GmbH	715	0.02	710	0.02	0.39
KAGOYA Japan Ltd	697	0.02	694	0.02	0.12
zzidc.com	689	0.02	0	0.00	N/A
FNMT-RCM	658	0.01	0	0.00	N/A
iptoX GmbH	654	0.01	653	0.01	-0.16

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.