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	November 2020 Count	November 2020 %	October 2020 Count	October 2020 %	Growth %
Let's Encrypt	2,703,248	23.56	2,634,486	23.28	1.24
Sectigo Limited	2,098,679	18.29	2,054,426	18.15	0.79
DigiCert	1,534,105	13.37	1,540,374	13.61	-1.74
cPanel, Inc.	671,452	5.85	661,290	5.84	0.18
GlobalSign nv-sa	595,364	5.19	577,476	5.10	1.72
COMODO CA Limited	471,305	4.11	490,050	4.33	-5.11
Unknown	419,785	3.66	409,145	3.61	1.23
GoDaddy.com, Inc.	396,937	3.46	398,235	3.52	-1.66
Starfield Technologies, Inc.	231,232	2.02	225,674	1.99	1.09
Amazon	219,750	1.92	220,820	1.95	-1.81
Cloudflare, Inc.	177,974	1.55	173,313	1.53	1.32
SecureCore	113,534	0.99	111,362	0.98	0.59
Plesk	102,694	0.90	104,510	0.92	-3.05
Gehirn Inc.	88,513	0.77	86,863	0.77	0.54
SomeOrganization	86,617	0.76	85,623	0.76	-0.19
Google Trust Services	85,837	0.75	84,574	0.75	0.14
Unizeto Technologies S.A.	85,570	0.75	82,349	0.73	2.52
none	84,003	0.73	82,966	0.73	-0.10
ispgateway	68,563	0.60	68,253	0.60	-0.89
DreamHost	59,751	0.52	57,518	0.51	2.50
Microsoft Corporation	57,811	0.50	58,642	0.52	-2.73
Internet2	54,305	0.47	54,073	0.48	-0.91
home.pl S.A.	40,873	0.36	40,146	0.35	0.45
TERENA	40,681	0.35	43,424	0.38	-7.57
Odin	40,072	0.35	39,784	0.35	-0.62
Actalis S.p.A.	38,996	0.34	37,196	0.33	3.44
Parallels	38,154	0.33	38,893	0.34	-3.21
Entrust, Inc.	36,274	0.32	36,706	0.32	-2.50
Gandi	35,572	0.31	35,723	0.32	-1.75
GoGetSSL	32,286	0.28	31,319	0.28	1.71
Trustwave Holdings, Inc.	30,904	0.27	33,646	0.30	-9.38
Webhosting	29,552	0.26	29,186	0.26	-0.10
TrustAsia Technologies, Inc.	25,482	0.22	23,014	0.20	9.25
GeoTrust Inc.	25,097	0.22	25,653	0.23	-3.47
Japan Registry Services Co., Ltd.	22,153	0.19	21,302	0.19	2.61
Cybertrust Japan Co., Ltd.	21,634	0.19	19,527	0.17	9.31
GEANT Vereniging	18,844	0.16	15,311	0.14	21.43
Internet Widgits Pty Ltd	17,192	0.15	17,101	0.15	-0.81
QuoVadis Limited	17,044	0.15	17,613	0.16	-4.52
Apache HTTP Server	16,355	0.14	16,329	0.14	-1.18
Acme Co	15,431	0.13	14,716	0.13	3.46
SECOM Trust Systems CO.,LTD.	15,284	0.13	15,396	0.14	-2.05
Network Solutions L.L.C.	14,951	0.13	14,963	0.13	-1.41
WebSupport, s.r.o.	14,922	0.13	14,923	0.13	-1.34
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	14,852	0.13	14,772	0.13	-0.80
Soluciones Corporativas IP, SL	13,388	0.12	13,071	0.12	1.06
Trust Provider B.V.	12,589	0.11	12,455	0.11	-0.27
Default Company Ltd	12,229	0.11	10,906	0.10	10.63
ddos-guard	11,959	0.10	11,933	0.11	-1.12
SH	11,896	0.10	11,878	0.10	-1.19
WEDOS Internet, a.s.	11,327	0.10	11,164	0.10	0.11
World4You Internet Services GmbH	11,147	0.10	11,070	0.10	-0.65
ZeroSSL	9,771	0.09	9,649	0.09	-0.09
Corporation Service Company	9,385	0.08	9,709	0.09	-4.63
DOMENY.PL sp. z o.o	9,157	0.08	8,729	0.08	3.50
Test Self SSL Company	8,484	0.07	8,291	0.07	0.96
KAGOYA-JAPAN	8,085	0.07	7,974	0.07	0.04
www.sprinthost.ru	6,928	0.06	6,785	0.06	0.74
The Trustico Group Ltd	6,257	0.05	6,213	0.05	-0.64
CloudFlare, Inc.	5,895	0.05	5,817	0.05	-0.01
Caddy Self-Signed	5,791	0.05	5,819	0.05	-1.81
Unspecified	5,475	0.05	4,994	0.04	8.17
XX	5,304	0.05	5,267	0.05	-0.64
Dreamcommerce S.A.	4,974	0.04	4,860	0.04	0.98
TAIWAN-CA	4,581	0.04	4,421	0.04	2.24
o2switch	4,555	0.04	4,328	0.04	3.84
T-Systems International GmbH	4,427	0.04	4,371	0.04	-0.07
Mirohost	4,266	0.04	4,233	0.04	-0.57
SSL Corporation	4,078	0.04	3,992	0.04	0.79
dhosting.pl Sp. z o.o.	4,074	0.04	3,920	0.03	2.54
National Institute of Informatics	4,059	0.04	4,039	0.04	-0.85
Basekit Ltd	4,044	0.04	3,465	0.03	15.15
SwissSign AG	3,899	0.03	3,866	0.03	-0.49
thawte, Inc.	3,884	0.03	4,029	0.04	-4.89
Buypass AS-983163327	3,775	0.03	3,544	0.03	5.10
GeoTrust, Inc.	3,714	0.03	3,832	0.03	-4.37
nazwa.pl sp. z o.o.	3,643	0.03	3,554	0.03	1.14
GMO CLOUD K.K.	3,581	0.03	3,492	0.03	1.18
HydrantID (Avalanche Cloud Corporation)	3,332	0.03	3,602	0.03	-8.73
DealerInspire	3,234	0.03	3,176	0.03	0.47
CentOS Web Panel	3,199	0.03	3,132	0.03	0.78
NetLock Kft.	3,188	0.03	3,262	0.03	-3.57
N/A	2,993	0.03	3,028	0.03	-2.48
WoTrus CA Limited	2,942	0.03	2,729	0.02	6.37
SSL Server	2,812	0.02	2,799	0.02	-0.88
Guardian Inc.	2,716	0.02	2,597	0.02	3.19
Digital Element	2,685	0.02	2,685	0.02	-1.34
Bitrix	2,635	0.02	2,554	0.02	1.79
ONEsolution s.r.o.	2,573	0.02	2,527	0.02	0.46
testexample	2,495	0.02	0	0.00	N/A
unaone	2,477	0.02	2,484	0.02	-1.61
Comodo Limited	2,423	0.02	4,022	0.04	-40.56
Beijing Knownsec Information Technology Co., Ltd	2,404	0.02	2,279	0.02	4.08
StartCom Ltd.	2,312	0.02	2,327	0.02	-1.97
MyCompany	2,309	0.02	2,282	0.02	-0.17
QuoVadis Trustlink B.V.	2,283	0.02	0	0.00	N/A
FASTVPS	2,271	0.02	2,158	0.02	3.83
Fasthosts Internet Limited	2,256	0.02	2,213	0.02	0.58
DivMulTech LLC	2,238	0.02	2,214	0.02	-0.27
OVH	2,196	0.02	2,167	0.02	-0.01

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.