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	October 2020 Count	October 2020 %	September 2020 Count	September 2020 %	Growth %
Let's Encrypt	2,634,486	23.28	2,626,776	23.21	0.30
Sectigo Limited	2,054,426	18.15	2,002,425	17.69	2.60
DigiCert	1,540,374	13.61	1,546,054	13.66	-0.37
cPanel, Inc.	661,290	5.84	662,537	5.85	-0.19
GlobalSign nv-sa	577,476	5.10	575,738	5.09	0.30
COMODO CA Limited	490,050	4.33	536,996	4.74	-8.74
Unknown	409,145	3.61	416,247	3.68	-1.70
GoDaddy.com, Inc.	398,235	3.52	402,545	3.56	-1.07
Starfield Technologies, Inc.	225,674	1.99	223,207	1.97	1.11
Amazon	220,820	1.95	227,450	2.01	-2.91
Cloudflare, Inc.	173,313	1.53	38,836	0.34	346.28
SecureCore	111,362	0.98	111,489	0.99	-0.11
Plesk	104,510	0.92	105,363	0.93	-0.81
Gehirn Inc.	86,863	0.77	86,305	0.76	0.65
SomeOrganization	85,623	0.76	86,651	0.77	-1.18
Google Trust Services	84,574	0.75	84,080	0.74	0.59
none	82,966	0.73	83,929	0.74	-1.15
Unizeto Technologies S.A.	82,349	0.73	82,371	0.73	-0.02
ispgateway	68,253	0.60	68,431	0.60	-0.26
Microsoft Corporation	58,642	0.52	65,043	0.57	-9.84
DreamHost	57,518	0.51	57,025	0.50	0.87
Internet2	54,073	0.48	54,791	0.48	-1.31
TERENA	43,424	0.38	46,420	0.41	-6.45
home.pl S.A.	40,146	0.35	40,142	0.35	0.01
Odin	39,784	0.35	40,584	0.36	-1.97
Parallels	38,893	0.34	39,693	0.35	-2.01
Actalis S.p.A.	37,196	0.33	36,429	0.32	2.11
Entrust, Inc.	36,706	0.32	36,405	0.32	0.83
Gandi	35,723	0.32	35,888	0.32	-0.46
Trustwave Holdings, Inc.	33,646	0.30	34,280	0.30	-1.85
GoGetSSL	31,319	0.28	30,434	0.27	2.91
Webhosting	29,186	0.26	29,049	0.26	0.47
GeoTrust Inc.	25,653	0.23	26,088	0.23	-1.67
TrustAsia Technologies, Inc.	23,014	0.20	22,880	0.20	0.59
Japan Registry Services Co., Ltd.	21,302	0.19	20,568	0.18	3.57
Cybertrust Japan Co., Ltd.	19,527	0.17	17,699	0.16	10.33
QuoVadis Limited	17,613	0.16	18,676	0.17	-5.69
Internet Widgits Pty Ltd	17,101	0.15	16,986	0.15	0.68
Apache HTTP Server	16,329	0.14	16,348	0.14	-0.11
SECOM Trust Systems CO.,LTD.	15,396	0.14	16,033	0.14	-3.97
GEANT Vereniging	15,311	0.14	12,853	0.11	19.13
Network Solutions L.L.C.	14,963	0.13	15,201	0.13	-1.56
WebSupport, s.r.o.	14,923	0.13	15,316	0.14	-2.56
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	14,772	0.13	14,820	0.13	-0.32
Acme Co	14,716	0.13	14,278	0.13	3.07
Soluciones Corporativas IP, SL	13,071	0.12	13,054	0.12	0.13
Trust Provider B.V.	12,455	0.11	12,615	0.11	-1.27
ddos-guard	11,933	0.11	2,889	0.03	313.06
SH	11,878	0.10	11,788	0.10	0.77
WEDOS Internet, a.s.	11,164	0.10	11,116	0.10	0.43
World4You Internet Services GmbH	11,070	0.10	11,025	0.10	0.41
Default Company Ltd	10,906	0.10	11,294	0.10	-3.43
Corporation Service Company	9,709	0.09	9,474	0.08	2.48
ZeroSSL	9,649	0.09	8,014	0.07	20.40
DOMENY.PL sp. z o.o	8,729	0.08	8,889	0.08	-1.80
Test Self SSL Company	8,291	0.07	8,279	0.07	0.15
KAGOYA-JAPAN	7,974	0.07	7,898	0.07	0.96
www.sprinthost.ru	6,785	0.06	6,755	0.06	0.45
The Trustico Group Ltd	6,213	0.05	6,497	0.06	-4.37
Caddy Self-Signed	5,819	0.05	5,756	0.05	1.10
CloudFlare, Inc.	5,817	0.05	131,898	1.17	-95.59
XX	5,267	0.05	4,981	0.04	5.74
Unspecified	4,994	0.04	4,696	0.04	6.35
Dreamcommerce S.A.	4,860	0.04	4,853	0.04	0.15
TAIWAN-CA	4,421	0.04	4,462	0.04	-0.92
T-Systems International GmbH	4,371	0.04	4,261	0.04	2.58
o2switch	4,328	0.04	4,178	0.04	3.59
Mirohost	4,233	0.04	4,208	0.04	0.60
National Institute of Informatics	4,039	0.04	4,054	0.04	-0.37
thawte, Inc.	4,029	0.04	4,170	0.04	-3.38
Comodo Limited	4,022	0.04	3,995	0.04	0.68
SSL Corporation	3,992	0.04	3,927	0.03	1.66
dhosting.pl Sp. z o.o.	3,920	0.03	3,829	0.03	2.38
SwissSign AG	3,866	0.03	3,909	0.03	-1.10
GeoTrust, Inc.	3,832	0.03	4,065	0.04	-5.73
HydrantID (Avalanche Cloud Corporation)	3,602	0.03	3,615	0.03	-0.36
nazwa.pl sp. z o.o.	3,554	0.03	3,509	0.03	1.28
Buypass AS-983163327	3,544	0.03	3,575	0.03	-0.86
GMO CLOUD K.K.	3,492	0.03	3,462	0.03	0.87
Basekit Ltd	3,465	0.03	3,358	0.03	3.19
Actalis S.p.A./03358520967	3,287	0.03	3,745	0.03	-12.23
NetLock Kft.	3,262	0.03	3,171	0.03	2.87
DealerInspire	3,176	0.03	3,163	0.03	0.41
CentOS Web Panel	3,132	0.03	3,214	0.03	-2.55
N/A	3,028	0.03	3,026	0.03	0.07
SSL Server	2,799	0.02	2,767	0.02	1.16
WoTrus CA Limited	2,729	0.02	2,480	0.02	10.04
Digital Element	2,685	0.02	2,685	0.02	0.00
Guardian Inc.	2,597	0.02	2,967	0.03	-12.47
Bitrix	2,554	0.02	2,561	0.02	-0.27
ONEsolution s.r.o.	2,527	0.02	2,516	0.02	0.44
unaone	2,484	0.02	2,497	0.02	-0.52
StartCom Ltd.	2,327	0.02	2,411	0.02	-3.48
MyCompany	2,282	0.02	2,312	0.02	-1.30
Beijing Knownsec Information Technology Co., Ltd	2,279	0.02	2,182	0.02	4.45
DivMulTech LLC	2,214	0.02	2,154	0.02	2.79
Fasthosts Internet Limited	2,213	0.02	2,201	0.02	0.55
OVH	2,167	0.02	2,161	0.02	0.28
FASTVPS	2,158	0.02	5,637	0.05	-61.72
EUNETIC GmbH	2,152	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.