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	September 2018 Count	September 2018 %	August 2018 Count	August 2018 %	Growth %
COMODO CA Limited	1,159,985	31.84	685,889	18.18	75.12
DigiCert	528,884	14.52	594,708	15.76	-7.91
Let's Encrypt	382,339	10.49	379,227	10.05	4.40
GlobalSign nv-sa	282,333	7.75	287,879	7.63	1.55
GoDaddy.com, Inc.	277,732	7.62	749,025	19.85	-61.61
Gandi	100,887	2.77	100,821	2.67	3.61
Unknown	88,391	2.43	87,036	2.31	5.16
cPanel, Inc.	84,214	2.31	82,553	2.19	5.63
Amazon	69,175	1.90	66,301	1.76	8.03
GeoTrust Inc.	67,795	1.86	109,287	2.90	-35.77
Google Trust Services	49,139	1.35	48,241	1.28	5.47
Starfield Technologies, Inc.	33,036	0.91	32,562	0.86	5.05
TERENA	28,545	0.78	28,474	0.75	3.80
Internet2	28,171	0.77	28,189	0.75	3.48
Entrust, Inc.	22,216	0.61	22,669	0.60	1.48
ispgateway	20,211	0.55	19,798	0.52	5.71
Unizeto Technologies S.A.	20,125	0.55	19,715	0.52	5.70
SomeOrganization	19,578	0.54	19,361	0.51	4.71
Parallels	18,711	0.51	18,903	0.50	2.49
none	17,120	0.47	17,705	0.47	0.13
Microsoft Corporation	16,908	0.46	16,811	0.45	4.14
Plesk	15,974	0.44	15,000	0.40	10.27
thawte, Inc.	14,852	0.41	22,500	0.60	-31.65
Apache HTTP Server	14,396	0.40	14,369	0.38	3.74
Network Solutions L.L.C.	14,246	0.39	14,664	0.39	0.59
Odin	12,184	0.33	12,041	0.32	4.78
home.pl S.A.	11,529	0.32	11,666	0.31	2.33
QuoVadis Limited	10,912	0.30	10,971	0.29	2.99
Symantec Corporation	10,360	0.28	19,295	0.51	-44.40
Cybertrust Japan Co., Ltd.	9,174	0.25	9,757	0.26	-2.64
NN.RU	8,883	0.24	8,883	0.24	3.55
SSL.com	8,279	0.23	8,557	0.23	0.18
Internet Widgits Pty Ltd	7,768	0.21	7,663	0.20	4.97
Trustwave Holdings, Inc.	6,232	0.17	6,582	0.17	-1.96
StartCom Ltd.	5,766	0.16	5,937	0.16	0.56
SecureCore	5,457	0.15	6,552	0.17	-13.76
io.ua	4,867	0.13	4,861	0.13	3.67
nazwa.pl sp. z o.o.	4,659	0.13	4,565	0.12	5.68
Actalis S.p.A./03358520967	4,639	0.13	4,390	0.12	9.42
Corporation Service Company	4,205	0.12	4,150	0.11	4.92
GeoTrust, Inc.	4,116	0.11	4,426	0.12	-3.71
Trust Provider B.V.	4,100	0.11	4,094	0.11	3.70
WebSupport, s.r.o.	3,331	0.09	3,243	0.09	6.36
The Trustico Group Ltd	3,330	0.09	3,525	0.09	-2.18
HydrantID (Avalanche Cloud Corporation)	3,305	0.09	4,335	0.11	-21.06
Pizza-Taxi.de GmbH / CA	3,266	0.09	3,257	0.09	3.83
KDDI Web Communications Inc.	3,211	0.09	3,209	0.09	3.61
Webhosting	3,190	0.09	2,995	0.08	10.29
Hosting Ukraine LLC	3,063	0.08	2,940	0.08	7.88
Nijimo, Inc.	3,062	0.08	2,906	0.08	9.10
SECOM Trust Systems CO.,LTD.	2,946	0.08	2,984	0.08	2.23
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	2,761	0.08	2,465	0.07	15.98
Japan Registry Services Co., Ltd.	2,556	0.07	2,419	0.06	9.41
National Institute of Informatics	2,257	0.06	2,218	0.06	5.37
TrustAsia Technologies, Inc.	1,924	0.05	4,247	0.11	-53.09
Default Company Ltd	1,808	0.05	1,865	0.05	0.38
DOMENY.PL sp. z o.o	1,793	0.05	1,804	0.05	2.91
Comodo Limited	1,693	0.05	1,794	0.05	-2.28
SH	1,663	0.05	1,596	0.04	7.89
Government of Korea	1,661	0.05	1,781	0.05	-3.43
T-Systems International GmbH	1,653	0.05	1,691	0.04	1.22
TAIWAN-CA	1,634	0.04	1,718	0.05	-1.52
Rede Nacional de Ensino e Pesquisa - RNP	1,603	0.04	1,571	0.04	5.66
WEDOS Internet, a.s.	1,550	0.04	1,444	0.04	11.15
SwissSign AG	1,538	0.04	1,505	0.04	5.82
WoSign CA Limited	1,477	0.04	1,532	0.04	-0.17
Test Self SSL Company	1,460	0.04	1,430	0.04	5.72
KAGOYA-JAPAN	1,381	0.04	1,262	0.03	13.31
AC Camerfirma S.A.	1,237	0.03	1,139	0.03	12.46
UIC	1,170	0.03	1,170	0.03	3.55
NetLock Kft.	1,125	0.03	1,128	0.03	3.27
XX	1,073	0.03	1,031	0.03	7.76
Verisign	1,038	0.03	1,062	0.03	1.21
EUNETIC GmbH	1,016	0.03	1,014	0.03	3.75
KEYNECTIS	1,012	0.03	1,111	0.03	-5.68
AffirmTrust	992	0.03	825	0.02	24.51
Thawte, Inc.	953	0.03	1,036	0.03	-4.75
Buypass AS-983163327	945	0.03	941	0.02	3.99
Mirohost	932	0.03	897	0.02	7.59
MyCompany	881	0.02	775	0.02	17.71
www.sprinthost.ru	849	0.02	820	0.02	7.21
U.S. Government	819	0.02	830	0.02	2.17
FIDUCIA & GAD IT AG	818	0.02	827	0.02	2.42
Equifax (Geotrust)	783	0.02	800	0.02	1.35
World4You Internet Services GmbH	715	0.02	649	0.02	14.08
dhosting.pl Sp. z o.o.	702	0.02	678	0.02	7.21
CloudFlare, Inc.	675	0.02	682	0.02	2.48
CertCenter AG	669	0.02	660	0.02	4.96
Beijing Knownsec Information Technology Co., Ltd	632	0.02	625	0.02	4.71
Globe Hosting, Inc.	623	0.02	1,212	0.03	-46.77
Comvive Servidores SL	611	0.02	588	0.02	7.60
TBS INTERNET	598	0.02	601	0.02	3.03
AlphaSSL	522	0.01	538	0.01	0.47
CAcert Inc.	516	0.01	529	0.01	1.00
KPN B.V.	507	0.01	530	0.01	-0.95
OVH	496	0.01	489	0.01	5.03
Acme Co	462	0.01	468	0.01	2.22
Soluciones Corporativas IP, SL	441	0.01	0	0.00	N/A
Zimbra Collaboration Server	437	0.01	437	0.01	3.55
Intexmedia	430	0.01	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.