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 2018 Count	October 2018 %	September 2018 Count	September 2018 %	Growth %
COMODO CA Limited	1,154,784	31.38	1,159,985	31.84	-1.43
DigiCert	540,865	14.70	528,884	14.52	1.26
Let's Encrypt	402,454	10.94	382,339	10.49	4.22
GlobalSign nv-sa	285,003	7.74	282,333	7.75	-0.05
GoDaddy.com, Inc.	276,001	7.50	277,732	7.62	-1.60
Gandi	101,230	2.75	100,887	2.77	-0.65
Unknown	90,255	2.45	88,391	2.43	1.10
cPanel, Inc.	88,595	2.41	84,214	2.31	4.16
Amazon	71,712	1.95	69,175	1.90	2.64
GeoTrust Inc.	62,585	1.70	67,795	1.86	-8.60
Google Trust Services	50,420	1.37	49,139	1.35	1.59
Starfield Technologies, Inc.	34,370	0.93	33,036	0.91	3.01
TERENA	28,824	0.78	28,545	0.78	-0.02
Internet2	28,299	0.77	28,171	0.77	-0.54
Entrust, Inc.	22,230	0.60	22,216	0.61	-0.92
ispgateway	21,153	0.57	20,211	0.55	3.63
Unizeto Technologies S.A.	20,094	0.55	20,125	0.55	-1.14
SomeOrganization	19,922	0.54	19,578	0.54	0.75
Parallels	18,357	0.50	18,711	0.51	-2.86
none	17,526	0.48	17,120	0.47	1.36
Microsoft Corporation	17,075	0.46	16,908	0.46	-0.01
Plesk	16,600	0.45	15,974	0.44	2.89
Apache HTTP Server	14,430	0.39	14,396	0.40	-0.75
Network Solutions L.L.C.	13,142	0.36	14,246	0.39	-8.66
thawte, Inc.	12,960	0.35	14,852	0.41	-13.60
Odin	12,497	0.34	12,184	0.33	1.56
home.pl S.A.	11,922	0.32	11,529	0.32	2.39
QuoVadis Limited	10,966	0.30	10,912	0.30	-0.50
NN.RU	8,883	0.24	8,883	0.24	-0.99
Symantec Corporation	8,812	0.24	10,360	0.28	-15.78
Cybertrust Japan Co., Ltd.	8,752	0.24	9,174	0.25	-5.54
SSL.com	8,461	0.23	8,279	0.23	1.19
Internet Widgits Pty Ltd	7,861	0.21	7,768	0.21	0.20
Trustwave Holdings, Inc.	6,204	0.17	6,232	0.17	-1.43
StartCom Ltd.	5,763	0.16	5,766	0.16	-1.04
Actalis S.p.A./03358520967	5,010	0.14	4,639	0.13	6.93
SecureCore	4,987	0.14	5,457	0.15	-9.51
io.ua	4,888	0.13	4,867	0.13	-0.56
nazwa.pl sp. z o.o.	4,872	0.13	4,659	0.13	3.54
Corporation Service Company	4,228	0.11	4,205	0.12	-0.45
Trust Provider B.V.	4,162	0.11	4,100	0.11	0.51
GeoTrust, Inc.	4,047	0.11	4,116	0.11	-2.65
Webhosting	3,551	0.10	3,190	0.09	10.22
WebSupport, s.r.o.	3,497	0.10	3,331	0.09	3.95
The Trustico Group Ltd	3,457	0.09	3,330	0.09	2.79
Pizza-Taxi.de GmbH / CA	3,277	0.09	3,266	0.09	-0.65
Hosting Ukraine LLC	3,263	0.09	3,063	0.08	5.48
KDDI Web Communications Inc.	3,244	0.09	3,211	0.09	0.03
Nijimo, Inc.	3,121	0.08	3,062	0.08	0.92
SECOM Trust Systems CO.,LTD.	2,915	0.08	2,946	0.08	-2.03
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	2,903	0.08	2,761	0.08	4.11
Japan Registry Services Co., Ltd.	2,627	0.07	2,556	0.07	1.76
DOMENY.PL sp. z o.o	2,544	0.07	1,793	0.05	40.48
TrustAsia Technologies, Inc.	2,501	0.07	1,924	0.05	28.71
National Institute of Informatics	2,256	0.06	2,257	0.06	-1.03
HydrantID (Avalanche Cloud Corporation)	2,052	0.06	3,305	0.09	-38.53
Default Company Ltd	1,899	0.05	1,808	0.05	4.00
SH	1,779	0.05	1,663	0.05	5.92
TAIWAN-CA	1,725	0.05	1,634	0.04	4.53
Comodo Limited	1,679	0.05	1,693	0.05	-1.81
T-Systems International GmbH	1,673	0.05	1,653	0.05	0.21
WEDOS Internet, a.s.	1,671	0.05	1,550	0.04	6.74
Government of Korea	1,654	0.04	1,661	0.05	-1.40
Rede Nacional de Ensino e Pesquisa - RNP	1,623	0.04	1,603	0.04	0.25
SwissSign AG	1,566	0.04	1,538	0.04	0.82
Test Self SSL Company	1,542	0.04	1,460	0.04	4.57
WoSign CA Limited	1,527	0.04	1,477	0.04	2.36
KAGOYA-JAPAN	1,468	0.04	1,381	0.04	5.25
XX	1,457	0.04	1,073	0.03	34.45
AC Camerfirma S.A.	1,261	0.03	1,237	0.03	0.93
UIC	1,170	0.03	1,170	0.03	-0.99
NetLock Kft.	1,154	0.03	1,125	0.03	1.57
Verisign	1,044	0.03	1,038	0.03	-0.41
AffirmTrust	1,025	0.03	992	0.03	2.31
EUNETIC GmbH	1,008	0.03	1,016	0.03	-1.77
Mirohost	990	0.03	932	0.03	5.17
KEYNECTIS	989	0.03	1,012	0.03	-3.24
Buypass AS-983163327	957	0.03	945	0.03	0.27
Thawte, Inc.	929	0.03	953	0.03	-3.48
MyCompany	925	0.03	881	0.02	3.96
www.sprinthost.ru	916	0.02	849	0.02	6.83
World4You Internet Services GmbH	827	0.02	715	0.02	14.52
U.S. Government	816	0.02	819	0.02	-1.35
Equifax (Geotrust)	775	0.02	783	0.02	-2.00
FIDUCIA & GAD IT AG	759	0.02	818	0.02	-8.13
CloudFlare, Inc.	749	0.02	675	0.02	9.87
dhosting.pl Sp. z o.o.	741	0.02	702	0.02	4.51
CertCenter AG	680	0.02	669	0.02	0.64
Comvive Servidores SL	656	0.02	611	0.02	6.31
Beijing Knownsec Information Technology Co., Ltd	641	0.02	632	0.02	0.42
Globe Hosting, Inc.	611	0.02	623	0.02	-2.89
TBS INTERNET	599	0.02	598	0.02	-0.82
Soluciones Corporativas IP, SL	551	0.01	441	0.01	23.71
OVH	538	0.01	496	0.01	7.40
KPN B.V.	524	0.01	507	0.01	2.33
CAcert Inc.	518	0.01	516	0.01	-0.60
Acme Co	489	0.01	462	0.01	4.80
AlphaSSL	477	0.01	522	0.01	-9.52
DHIMYOTIS	453	0.01	0	0.00	N/A
FASTVPS	443	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.