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	June 2011 Count	June 2011 %	May 2011 Count	May 2011 %	Growth %
GoDaddy.com, Inc.	145,377	17.18	141,371	16.90	1.62
Equifax (Geotrust)	115,776	13.68	123,486	14.77	-7.35
Verisign	88,588	10.47	88,993	10.64	-1.63
GeoTrust, Inc.	48,536	5.74	41,339	4.94	16.02
Comodo Limited	46,357	5.48	48,154	5.76	-4.87
Thawte, Inc.	37,523	4.43	34,469	4.12	7.57
DigiCert	31,797	3.76	30,889	3.69	1.72
Thawte	29,395	3.47	32,883	3.93	-11.67
GeoTrust Inc.	27,340	3.23	24,468	2.93	10.41
COMODO CA Limited	24,042	2.84	22,529	2.69	5.45
Unknown	21,201	2.51	20,947	2.50	0.01
Comodo CA Limited	20,269	2.40	19,846	2.37	0.92
Network Solutions L.L.C.	18,819	2.22	18,620	2.23	-0.13
GlobalSign nv-sa	16,568	1.96	16,294	1.95	0.48
Starfield Technologies, Inc.	15,646	1.85	15,360	1.84	0.66
GlobalSign	15,634	1.85	15,314	1.83	0.88
Entrust, Inc.	10,876	1.29	10,768	1.29	-0.19
TERENA	7,183	0.85	6,953	0.83	2.08
SecureTrust Corporation	6,914	0.82	6,811	0.81	0.31
Alpha	5,913	0.70	5,910	0.71	-1.13
StartCom Ltd.	5,115	0.60	4,828	0.58	4.69
SomeOrganization	4,700	0.56	4,650	0.56	-0.12
Parallels	3,907	0.46	3,818	0.46	1.12
Akamai Technologies Inc	3,602	0.43	3,538	0.42	0.60
Cybertrust Japan Co., Ltd.	2,906	0.34	2,674	0.32	7.39
SECOM Trust Systems CO.,LTD.	2,617	0.31	2,599	0.31	-0.50
SWsoft, Inc.	2,278	0.27	2,328	0.28	-3.31
GeoTrust Inc	1,986	0.23	1,846	0.22	6.31
thawte, Inc.	1,925	0.23	1,905	0.23	-0.15
Root CA	1,875	0.22	1,899	0.23	-2.43
Sun Microsystems Inc	1,841	0.22	1,844	0.22	-1.35
CAcert Inc.	1,823	0.22	1,800	0.22	0.08
Servision Inc.	1,708	0.20	1,693	0.20	-0.31
Unizeto Technologies S.A.	1,645	0.19	1,630	0.19	-0.28
Internet2	1,358	0.16	1,011	0.12	32.73
U.S. Government	1,327	0.16	1,325	0.16	-1.04
TC TrustCenter GmbH	1,255	0.15	1,249	0.15	-0.71
Google Inc	1,229	0.15	1,173	0.14	3.53
SECOM Trust.net	1,185	0.14	1,214	0.15	-3.55
Cybertrust	1,163	0.14	1,276	0.15	-9.94
Snake Oil, Ltd	1,038	0.12	1,063	0.13	-3.51
Register.com	1,029	0.12	1,009	0.12	0.77
Cybertrust Inc	993	0.12	984	0.12	-0.28
Betrusted Japan Co., Ltd.	974	0.12	1,167	0.14	-17.53
ips Certification Authority	973	0.11	999	0.12	-3.76
ispgateway	965	0.11	951	0.11	0.27
QuoVadis Limited	927	0.11	886	0.11	3.39
GTE Corporation	911	0.11	902	0.11	-0.20
UIC	898	0.11	892	0.11	-0.52
Trusted Secure Certificate Authority	890	0.11	853	0.10	3.10
Secure Business Services, Inc.	837	0.10	906	0.11	-8.71
GANDI SAS	733	0.09	693	0.08	4.52
none	732	0.09	714	0.09	1.31
AusCERT	562	0.07	545	0.07	1.90
National Institute of Informatics	529	0.06	509	0.06	2.70
NetLock Halozatbiztonsagi Kft.	511	0.06	513	0.06	-1.57
EUNETIC GmbH	500	0.06	481	0.06	2.72
Parallels, Inc.	461	0.05	436	0.05	4.48
T-Systems Enterprise Services GmbH	457	0.05	527	0.06	-14.31
OVH SAS	443	0.05	410	0.05	6.77
Firstserver, Inc	441	0.05	437	0.05	-0.28
Government of Korea	439	0.05	429	0.05	1.12
Autistici/Inventati	405	0.05	382	0.05	4.76
Globe Hosting, Inc.	392	0.05	346	0.04	11.95
OCC	362	0.04	361	0.04	-0.91
T-Systems International GmbH	355	0.04	282	0.03	24.40
WTF ALFA	347	0.04	344	0.04	-0.32
Apache HTTP Server	346	0.04	341	0.04	0.26
Sonera	337	0.04	333	0.04	0.00
TBS INTERNET	336	0.04	341	0.04	-2.63
FNMT	331	0.04	328	0.04	-0.28
Entrust.net	328	0.04	363	0.04	-10.71
Internet Widgits Pty Ltd	322	0.04	326	0.04	-2.40
ICP-Brasil	311	0.04	314	0.04	-2.13
SYS-CON Media	291	0.03	273	0.03	5.33
AlphaSSL	280	0.03	0	0.00	N/A
Volusion, Inc.	277	0.03	0	0.00	N/A
RBC Hosting Center	273	0.03	262	0.03	2.96
TAIWAN-CA.COM Inc.	253	0.03	265	0.03	-5.66
Zimbra Collaboration Suite	244	0.03	253	0.03	-4.70
SonicWALL, Inc.	241	0.03	240	0.03	-0.77
TDC	238	0.03	241	0.03	-2.41
WebSpace-Forum, Thomas Wendt	235	0.03	236	0.03	-1.60
XX	233	0.03	224	0.03	2.79
OptimumSSL CA	212	0.03	203	0.02	3.20
Getronics PinkRoccade Nederland B.V.	201	0.02	198	0.02	0.31
Digi-Sign Limited	180	0.02	184	0.02	-3.33
IPS Certification Authority s.l.	176	0.02	181	0.02	-3.91
CrossTrust	176	0.02	139	0.02	25.12
WoSign, Inc.	175	0.02	166	0.02	4.17
SiteGround LLC.	166	0.02	173	0.02	-5.18
TAIWAN-CA INC.	165	0.02	152	0.02	7.27
InterWorx	159	0.02	168	0.02	-6.48
America Online Inc.	151	0.02	154	0.02	-3.11
My Company Ltd	150	0.02	160	0.02	-7.36
Ministere education nationale (MENESR)	149	0.02	149	0.02	-1.18
Positive Software	148	0.02	143	0.02	2.27
Universitaet Heidelberg	142	0.02	141	0.02	-0.48
HTTPS Management Certificate for SonicWALL (self-signed)	141	0.02	138	0.02	0.96
New Dream Network, LLC.	139	0.02	139	0.02	-1.18

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.