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	January 2017 Count	January 2017 %	December 2016 Count	December 2016 %	Growth %
GoDaddy.com, Inc.	635,650	19.10	622,913	19.78	-3.42
DigiCert	608,993	18.30	505,142	16.04	14.11
COMODO CA Limited	495,942	14.91	487,962	15.50	-3.80
GeoTrust Inc.	419,453	12.61	401,242	12.74	-1.06
GlobalSign nv-sa	231,607	6.96	220,956	7.02	-0.79
Symantec Corporation	123,772	3.72	123,214	3.91	-4.92
Gandi	91,638	2.75	90,805	2.88	-4.48
Let's Encrypt	75,751	2.28	66,531	2.11	7.76
thawte, Inc.	73,015	2.19	72,509	2.30	-4.69
Starfield Technologies, Inc.	43,502	1.31	42,649	1.35	-3.46
Unizeto Technologies S.A.	34,121	1.03	33,811	1.07	-4.48
Microsoft Corporation	33,805	1.02	33,213	1.05	-3.66
StartCom Ltd.	33,187	1.00	34,197	1.09	-8.15
Unknown	30,097	0.90	29,094	0.92	-2.09
Internet2	28,878	0.87	28,262	0.90	-3.29
Entrust, Inc.	25,963	0.78	25,773	0.82	-4.65
TERENA	24,140	0.73	23,838	0.76	-4.15
Network Solutions L.L.C.	20,945	0.63	21,361	0.68	-7.20
Amazon	18,511	0.56	17,646	0.56	-0.71
Parallels	17,582	0.53	17,362	0.55	-4.15
cPanel, Inc.	17,397	0.52	14,552	0.46	13.15
Google Inc	16,520	0.50	15,266	0.48	2.42
GeoTrust, Inc.	15,071	0.45	15,980	0.51	-10.74
Trustwave Holdings, Inc.	12,623	0.38	12,603	0.40	-5.20
SomeOrganization	11,737	0.35	11,227	0.36	-1.05
QuoVadis Limited	8,426	0.25	8,277	0.26	-3.65
Verizon Enterprise Solutions	7,842	0.24	5,265	0.17	40.97
none	7,800	0.23	7,275	0.23	1.48
Cybertrust Japan Co., Ltd.	6,416	0.19	6,219	0.20	-2.35
WoSign CA Limited	5,645	0.17	5,610	0.18	-4.76
DreamHost	5,211	0.16	4,859	0.15	1.50
Odin	5,177	0.16	4,833	0.15	1.38
Verisign	4,149	0.12	4,503	0.14	-12.79
Comodo Limited	4,115	0.12	4,125	0.13	-5.58
Thawte, Inc.	3,852	0.12	4,126	0.13	-11.64
SecureCore	3,760	0.11	3,509	0.11	1.42
SECOM Trust Systems CO.,LTD.	3,563	0.11	3,545	0.11	-4.87
ispgateway	3,287	0.10	3,240	0.10	-3.98
Internet Widgits Pty Ltd	2,950	0.09	2,692	0.09	3.72
Corporation Service Company	2,946	0.09	2,891	0.09	-3.55
nazwa.pl sp. z o.o.	2,738	0.08	2,667	0.08	-2.83
KDDI Web Communications Inc.	2,493	0.07	2,445	0.08	-3.49
Hostpoint GmbH	2,410	0.07	2,119	0.07	7.65
home.pl S.A.	2,278	0.07	2,014	0.06	7.05
AlphaSSL	2,209	0.07	2,286	0.07	-8.54
CloudFlare, Inc.	2,134	0.06	2,081	0.07	-2.94
National Institute of Informatics	2,027	0.06	1,991	0.06	-3.64
Government of Korea	1,975	0.06	1,922	0.06	-2.74
Equifax (Geotrust)	1,744	0.05	1,790	0.06	-7.78
T-Systems International GmbH	1,720	0.05	1,723	0.05	-5.52
SSL.com	1,684	0.05	1,677	0.05	-4.96
Trust Provider B.V.	1,664	0.05	1,576	0.05	-0.07
Volusion, Inc.	1,504	0.05	1,585	0.05	-10.19
TAIWAN-CA	1,414	0.04	1,352	0.04	-1.01
DOMENY.PL sp. z o.o	1,352	0.04	1,309	0.04	-2.24
Pizza-Taxi.de GmbH / CA	1,249	0.04	1,082	0.03	9.26
EUNETIC GmbH	1,228	0.04	1,212	0.04	-4.10
U.S. Government	1,168	0.04	1,161	0.04	-4.78
UIC	1,159	0.03	1,156	0.04	-5.11
Rede Nacional de Ensino e Pesquisa - RNP	1,059	0.03	1,023	0.03	-2.02
KEYNECTIS	1,059	0.03	998	0.03	0.43
SwissSign AG	1,012	0.03	1,000	0.03	-4.22
Trend Micro Inc	980	0.03	966	0.03	-3.98
NetLock Kft.	970	0.03	959	0.03	-4.27
Intermediate Certificate	894	0.03	928	0.03	-8.82
CAcert Inc.	804	0.02	851	0.03	-10.58
WebSupport, s.r.o.	765	0.02	728	0.02	-0.54
Root CA	663	0.02	726	0.02	-13.57
Dreamcommerce S.A.	657	0.02	631	0.02	-1.45
Comodo CA Limited	657	0.02	693	0.02	-10.27
Actalis S.p.A./03358520967	627	0.02	608	0.02	-2.39
Zimbra Collaboration Server	621	0.02	625	0.02	-5.96
FNMT-RCM	620	0.02	607	0.02	-3.32
TBS INTERNET	603	0.02	593	0.02	-3.76
Plesk	594	0.02	402	0.01	39.85
Globe Hosting, Inc.	587	0.02	578	0.02	-3.88
Thawte	581	0.02	591	0.02	-6.95
AC Camerfirma S.A.	534	0.02	513	0.02	-1.48
KPN Corporate Market BV	527	0.02	534	0.02	-6.59
ICP-Brasil	527	0.02	538	0.02	-7.29
ACCV	505	0.02	499	0.02	-4.21
Parallels, Inc.	492	0.01	483	0.02	-3.59
Buypass AS-983163327	484	0.01	451	0.01	1.57
GANDI SAS	467	0.01	512	0.02	-13.67
SWsoft, Inc.	461	0.01	469	0.01	-6.97
Hosting Ukraine LLC	438	0.01	377	0.01	9.96
Default Company Ltd	420	0.01	390	0.01	1.93
Japan Registry Services Co., Ltd.	409	0.01	369	0.01	4.91
XX	399	0.01	401	0.01	-5.82
FIDUCIA & GAD IT AG	377	0.01	373	0.01	-4.34
WEDOS Internet, a.s.	365	0.01	336	0.01	2.82
Firstserver, Inc	360	0.01	367	0.01	-7.16
Universitaet Stuttgart	348	0.01	344	0.01	-4.25
Snake Oil, Ltd	342	0.01	348	0.01	-6.98
CrossTrust	329	0.01	337	0.01	-7.60
Apache HTTP Server	315	0.01	304	0.01	-1.93
Yandex LLC	313	0.01	319	0.01	-7.13
Test Self SSL Company	292	0.01	278	0.01	-0.59
Dell Inc.	283	0.01	336	0.01	-20.28
Karlsruhe Institute of Technology	277	0.01	273	0.01	-3.97

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.