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	December 2021 Count	December 2021 %	November 2021 Count	November 2021 %	Growth %
Let's Encrypt	1,566,891	33.48	1,572,362	33.36	0.37
Sectigo Limited	632,364	13.51	630,427	13.38	1.03
DigiCert	511,864	10.94	536,320	11.38	-3.87
GlobalSign nv-sa	251,255	5.37	257,115	5.45	-1.58
Unknown	186,494	3.99	176,675	3.75	6.32
GoDaddy.com, Inc.	160,473	3.43	164,291	3.49	-1.62
Amazon	154,933	3.31	156,904	3.33	-0.55
cPanel, Inc.	135,523	2.90	137,807	2.92	-0.95
Google Trust Services LLC	97,905	2.09	97,333	2.07	1.31
Plesk	79,126	1.69	81,370	1.73	-2.06
SomeOrganization	73,056	1.56	72,758	1.54	1.13
Cloudflare, Inc.	57,248	1.22	52,073	1.10	10.73
Unizeto Technologies S.A.	45,381	0.97	45,897	0.97	-0.41
Actalis S.p.A.	44,706	0.96	44,149	0.94	1.99
COMODO CA Limited	40,886	0.87	44,480	0.94	-7.42
TrustAsia Technologies, Inc.	26,292	0.56	25,708	0.55	3.01
Parallels	26,205	0.56	26,855	0.57	-1.72
GEANT Vereniging	25,179	0.54	24,337	0.52	4.20
Starfield Technologies, Inc.	24,480	0.52	24,886	0.53	-0.93
GoGetSSL	23,125	0.49	23,350	0.50	-0.25
Internet2	20,886	0.45	21,357	0.45	-1.50
Odin	20,749	0.44	21,032	0.45	-0.64
ddos-guard	20,684	0.44	20,185	0.43	3.21
Gandi	19,939	0.43	19,626	0.42	2.32
Japan Registry Services Co., Ltd.	18,696	0.40	19,058	0.40	-1.20
SH	18,582	0.40	18,314	0.39	2.19
Soluciones Corporativas IP, SL	16,445	0.35	16,515	0.35	0.29
Apache HTTP Server	15,932	0.34	15,945	0.34	0.64
Entrust, Inc.	13,949	0.30	14,284	0.30	-1.64
SECOM Trust Systems CO.,LTD.	13,594	0.29	13,997	0.30	-2.18
ZeroSSL	13,459	0.29	11,081	0.24	22.33
Test Self SSL Company	12,745	0.27	12,610	0.27	1.80
Default Company Ltd	10,369	0.22	10,348	0.22	0.92
Microsoft Corporation	10,205	0.22	10,290	0.22	-0.11
TERENA	9,676	0.21	10,716	0.23	-9.06
none	8,768	0.19	8,989	0.19	-1.76
CloudFlare, Inc.	8,665	0.19	8,778	0.19	-0.58
FASTVPS	7,605	0.16	7,557	0.16	1.36
GeoTrust Inc.	6,914	0.15	7,097	0.15	-1.88
Internet Widgits Pty Ltd	6,822	0.15	6,693	0.14	2.66
KAGOYA-JAPAN	6,655	0.14	6,671	0.14	0.48
Corporation Service Company	6,481	0.14	6,576	0.14	-0.74
XX	6,238	0.13	6,498	0.14	-3.31
dhosting.pl Sp. z o.o.	6,220	0.13	5,554	0.12	12.80
DOMENY.PL sp. z o.o	5,749	0.12	5,731	0.12	1.03
WoTrus CA Limited	5,682	0.12	5,697	0.12	0.45
Network Solutions L.L.C.	5,599	0.12	5,734	0.12	-1.65
Beijing Knownsec Information Technology Co., Ltd	5,532	0.12	6,343	0.13	-12.16
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	5,290	0.11	5,483	0.12	-2.83
home.pl S.A.	5,250	0.11	5,300	0.11	-0.23
QuoVadis Limited	5,218	0.11	5,574	0.12	-5.71
Unspecified	5,090	0.11	5,065	0.11	1.22
Trust Provider B.V.	4,795	0.10	4,951	0.11	-2.46
Mirohost	4,773	0.10	4,771	0.10	0.76
Cybertrust Japan Co., Ltd.	4,701	0.10	4,888	0.10	-3.14
testexample	4,587	0.10	3,907	0.08	18.25
Buypass AS-983163327	3,272	0.07	3,115	0.07	5.79
SSL Server	3,110	0.07	3,101	0.07	1.01
Guardian Inc.	3,052	0.07	3,046	0.06	0.92
DivMulTech LLC	2,999	0.06	2,909	0.06	3.83
SSL Corporation	2,984	0.06	2,954	0.06	1.74
Webgarden	2,766	0.06	2,705	0.06	2.99
Digital Element	2,690	0.06	2,690	0.06	0.72
Alpiro s.r.o.	2,551	0.05	2,598	0.06	-1.10
The Trustico Group Ltd	2,405	0.05	2,522	0.05	-3.95
My Company Ltd	2,404	0.05	2,370	0.05	2.16
CentOS Web Panel	2,350	0.05	2,483	0.05	-4.68
SmugMug	2,198	0.05	2,183	0.05	1.41
TAIWAN-CA	2,142	0.05	2,145	0.05	0.58
GeoTrust, Inc.	1,973	0.04	2,091	0.04	-4.97
Bitrix	1,901	0.04	1,948	0.04	-1.71
nazwa.pl sp. z o.o.	1,745	0.04	1,770	0.04	-0.70
cndns	1,687	0.04	1,663	0.04	2.17
MyCompany	1,639	0.04	1,623	0.03	1.71
Beijing Xinchacha Credit Management Co., Ltd.	1,541	0.03	1,487	0.03	4.38
ZONER Software, a.s.	1,498	0.03	1,475	0.03	2.29
SecureCore	1,485	0.03	1,486	0.03	0.65
Dattatec.com	1,481	0.03	1,422	0.03	4.90
OVH	1,453	0.03	1,469	0.03	-0.38
StartCom Ltd.	1,429	0.03	1,538	0.03	-6.42
Skok.CZ	1,422	0.03	1,439	0.03	-0.47
Trustwave Holdings, Inc.	1,415	0.03	1,462	0.03	-2.52
WEDOS Internet, a.s.	1,380	0.03	1,118	0.02	24.32
Comodo Japan, Inc.	1,380	0.03	1,367	0.03	1.68
N/A	1,374	0.03	1,366	0.03	1.31
NetLock Kft.	1,179	0.03	1,180	0.03	0.63
thawte, Inc.	1,176	0.03	1,215	0.03	-2.51
CA	1,150	0.02	1,132	0.02	2.32
SwissSign AG	1,144	0.02	1,177	0.02	-2.11
Acme Co	1,142	0.02	1,130	0.02	1.79
Bitnami	1,125	0.02	1,158	0.02	-2.15
Yandex LLC	1,067	0.02	1,028	0.02	4.54
FASTPANEL	972	0.02	869	0.02	12.66
EUNETIC GmbH	882	0.02	954	0.02	-6.88
FNMT-RCM	866	0.02	873	0.02	-0.09
SWsoft, Inc.	863	0.02	856	0.02	1.54
Symantec Corporation	862	0.02	927	0.02	-6.34
China Financial Certification Authority	726	0.02	0	0.00	N/A
Telia Finland Oyj	721	0.02	0	0.00	N/A
KAGOYA Japan Ltd	719	0.02	721	0.02	0.44

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.