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	September 2020 Count	September 2020 %	August 2020 Count	August 2020 %	Growth %
Let's Encrypt	2,626,776	23.21	2,543,651	23.00	0.91
Sectigo Limited	2,002,425	17.69	1,340,024	12.12	46.02
DigiCert	1,546,054	13.66	1,532,626	13.86	-1.43
cPanel, Inc.	662,537	5.85	634,147	5.73	2.09
GlobalSign nv-sa	575,738	5.09	570,561	5.16	-1.40
COMODO CA Limited	536,996	4.74	1,145,149	10.35	-54.18
Unknown	416,247	3.68	405,472	3.67	0.31
GoDaddy.com, Inc.	402,545	3.56	401,464	3.63	-2.02
Amazon	227,450	2.01	221,549	2.00	0.32
Starfield Technologies, Inc.	223,207	1.97	220,520	1.99	-1.09
CloudFlare, Inc.	131,898	1.17	136,140	1.23	-5.33
SecureCore	111,489	0.99	107,859	0.98	1.01
Plesk	105,363	0.93	101,750	0.92	1.19
SomeOrganization	86,651	0.77	83,597	0.76	1.29
Gehirn Inc.	86,305	0.76	83,260	0.75	1.29
Google Trust Services	84,080	0.74	82,612	0.75	-0.55
none	83,929	0.74	81,227	0.73	0.97
Unizeto Technologies S.A.	82,371	0.73	75,939	0.69	5.99
ispgateway	68,431	0.60	67,308	0.61	-0.65
Microsoft Corporation	65,043	0.57	64,034	0.58	-0.74
DreamHost	57,025	0.50	54,184	0.49	2.84
Internet2	54,791	0.48	54,336	0.49	-1.47
TERENA	46,420	0.41	47,319	0.43	-4.14
Odin	40,584	0.36	40,114	0.36	-1.14
home.pl S.A.	40,142	0.35	40,787	0.37	-3.83
Parallels	39,693	0.35	39,419	0.36	-1.60
Cloudflare, Inc.	38,836	0.34	29,012	0.26	30.81
Actalis S.p.A.	36,429	0.32	13,999	0.13	154.28
Entrust, Inc.	36,405	0.32	37,958	0.34	-6.28
Gandi	35,888	0.32	35,145	0.32	-0.22
Trustwave Holdings, Inc.	34,280	0.30	34,102	0.31	-1.77
GoGetSSL	30,434	0.27	26,216	0.24	13.44
Webhosting	29,049	0.26	28,089	0.25	1.06
GeoTrust Inc.	26,088	0.23	25,877	0.23	-1.49
TrustAsia Technologies, Inc.	22,880	0.20	21,151	0.19	5.70
Japan Registry Services Co., Ltd.	20,568	0.18	20,023	0.18	0.38
QuoVadis Limited	18,676	0.17	18,839	0.17	-3.13
Cybertrust Japan Co., Ltd.	17,699	0.16	20,644	0.19	-16.22
Internet Widgits Pty Ltd	16,986	0.15	17,701	0.16	-6.23
Apache HTTP Server	16,348	0.14	16,706	0.15	-4.38
SECOM Trust Systems CO.,LTD.	16,033	0.14	16,309	0.15	-3.94
WebSupport, s.r.o.	15,316	0.14	15,129	0.14	-1.08
Network Solutions L.L.C.	15,201	0.13	15,226	0.14	-2.44
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	14,820	0.13	14,879	0.13	-2.67
Acme Co	14,278	0.13	13,733	0.12	1.59
Soluciones Corporativas IP, SL	13,054	0.12	12,669	0.11	0.69
GEANT Vereniging	12,853	0.11	10,830	0.10	15.97
Trust Provider B.V.	12,615	0.11	11,922	0.11	3.40
SH	11,788	0.10	11,420	0.10	0.87
Default Company Ltd	11,294	0.10	11,492	0.10	-3.97
WEDOS Internet, a.s.	11,116	0.10	10,821	0.10	0.38
World4You Internet Services GmbH	11,025	0.10	10,628	0.10	1.37
Corporation Service Company	9,474	0.08	9,360	0.08	-1.09
DOMENY.PL sp. z o.o	8,889	0.08	8,666	0.08	0.23
Test Self SSL Company	8,279	0.07	7,897	0.07	2.44
ZeroSSL	8,014	0.07	7,730	0.07	1.31
KAGOYA-JAPAN	7,898	0.07	7,644	0.07	0.96
www.sprinthost.ru	6,755	0.06	6,519	0.06	1.25
The Trustico Group Ltd	6,497	0.06	6,352	0.06	-0.05
Caddy Self-Signed	5,756	0.05	5,583	0.05	0.74
FASTVPS	5,637	0.05	5,546	0.05	-0.68
XX	4,981	0.04	4,606	0.04	5.67
Dreamcommerce S.A.	4,853	0.04	4,724	0.04	0.39
Unspecified	4,696	0.04	4,224	0.04	8.64
TAIWAN-CA	4,462	0.04	4,440	0.04	-1.80
T-Systems International GmbH	4,261	0.04	4,159	0.04	0.11
Mirohost	4,208	0.04	4,131	0.04	-0.46
o2switch	4,178	0.04	3,882	0.04	5.17
thawte, Inc.	4,170	0.04	4,287	0.04	-4.95
GeoTrust, Inc.	4,065	0.04	4,073	0.04	-2.48
National Institute of Informatics	4,054	0.04	3,988	0.04	-0.67
Comodo Limited	3,995	0.04	4,092	0.04	-4.60
SSL Corporation	3,927	0.03	3,774	0.03	1.68
SwissSign AG	3,909	0.03	3,898	0.04	-2.01
dhosting.pl Sp. z o.o.	3,829	0.03	3,669	0.03	1.98
Actalis S.p.A./03358520967	3,745	0.03	24,686	0.22	-85.18
HydrantID (Avalanche Cloud Corporation)	3,615	0.03	3,493	0.03	1.13
Buypass AS-983163327	3,575	0.03	3,474	0.03	0.56
nazwa.pl sp. z o.o.	3,509	0.03	3,327	0.03	3.06
GMO CLOUD K.K.	3,462	0.03	3,321	0.03	1.87
Basekit Ltd	3,358	0.03	3,103	0.03	5.75
CentOS Web Panel	3,214	0.03	3,033	0.03	3.55
NetLock Kft.	3,171	0.03	3,111	0.03	-0.40
DealerInspire	3,163	0.03	3,061	0.03	0.97
N/A	3,026	0.03	3,021	0.03	-2.12
Guardian Inc.	2,967	0.03	2,963	0.03	-2.15
ddos-guard	2,889	0.03	2,671	0.02	5.69
SSL Server	2,767	0.02	2,634	0.02	2.65
Digital Element	2,685	0.02	2,685	0.02	-2.28
Bitrix	2,561	0.02	2,347	0.02	6.63
ONEsolution s.r.o.	2,516	0.02	2,436	0.02	0.93
unaone	2,497	0.02	2,476	0.02	-1.45
WoTrus CA Limited	2,480	0.02	2,223	0.02	9.01
StartCom Ltd.	2,411	0.02	2,419	0.02	-2.61
MyCompany	2,312	0.02	2,327	0.02	-2.91
Symantec Corporation	2,255	0.02	2,240	0.02	-1.63
Fasthosts Internet Limited	2,201	0.02	2,149	0.02	0.08
Beijing Knownsec Information Technology Co., Ltd	2,182	0.02	0	0.00	N/A
OVH	2,161	0.02	2,125	0.02	-0.63
DivMulTech LLC	2,154	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.