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	April 2010 Count	April 2010 %	March 2010 Count	March 2010 %	Growth %
Equifax (Geotrust)	162,796	24.92	162,110	25.09	-0.66
GoDaddy.com, Inc.	92,451	14.15	89,614	13.87	2.06
Verisign	83,071	12.72	83,370	12.90	-1.43
Thawte	62,516	9.57	62,413	9.66	-0.91
Comodo Limited	44,977	6.89	45,339	7.02	-1.87
DigiCert	16,638	2.55	15,691	2.43	4.89
Unknown	15,554	2.38	15,522	2.40	-0.87
Network Solutions L.L.C.	13,862	2.12	13,601	2.10	0.82
Comodo CA Limited	11,999	1.84	11,720	1.81	1.28
GlobalSign	11,005	1.68	10,743	1.66	1.34
GlobalSign nv-sa	10,615	1.63	10,298	1.59	1.97
COMODO CA Limited	10,612	1.62	9,923	1.54	5.79
Starfield Technologies, Inc.	10,349	1.58	10,096	1.56	1.40
Entrust, Inc.	5,525	0.85	5,044	0.78	8.36
SecureTrust Corporation	5,405	0.83	5,299	0.82	0.90
SomeOrganization	3,929	0.60	3,898	0.60	-0.29
TERENA	3,431	0.53	2,455	0.38	38.25
Entrust.net	2,984	0.46	3,306	0.51	-10.71
SWsoft, Inc.	2,850	0.44	2,993	0.46	-5.80
Betrusted Japan Co., Ltd.	2,625	0.40	2,596	0.40	0.03
Alpha	2,504	0.38	2,385	0.37	3.86
Parallels	2,341	0.36	2,210	0.34	4.79
Cybertrust	2,251	0.34	3,066	0.47	-27.37
SECOM Trust Systems CO.,LTD.	1,897	0.29	1,867	0.29	0.51
Root CA	1,820	0.28	1,846	0.29	-2.47
Akamai Technologies Inc	1,735	0.27	1,615	0.25	6.27
SECOM Trust.net	1,390	0.21	1,416	0.22	-2.89
StartCom Ltd.	1,343	0.21	1,166	0.18	13.94
Snake Oil, Ltd	1,271	0.19	1,298	0.20	-3.13
Secure Business Services, Inc.	1,268	0.19	1,273	0.20	-1.46
U.S. Government	1,167	0.18	1,135	0.18	1.71
Servision Inc.	1,141	0.17	1,087	0.17	3.84
CAcert Inc.	1,123	0.17	1,088	0.17	2.11
thawte, Inc.	1,056	0.16	989	0.15	5.63
ips Certification Authority	995	0.15	1,035	0.16	-4.90
Unizeto Technologies S.A.	973	0.15	814	0.13	18.25
T-Systems Enterprise Services GmbH	761	0.12	774	0.12	-2.74
ispgateway	755	0.12	745	0.12	0.25
GTE Corporation	701	0.11	696	0.11	-0.36
Firstserver, Inc.	654	0.10	658	0.10	-1.68
Google Inc	645	0.10	625	0.10	2.09
UIC	639	0.10	624	0.10	1.30
Trusted Secure Certificate Authority	626	0.10	619	0.10	0.04
TC TrustCenter GmbH	574	0.09	534	0.08	6.33
GeoTrust Inc	571	0.09	545	0.08	3.64
Register.com	552	0.08	517	0.08	5.62
Cybertrust Inc	533	0.08	501	0.08	5.24
QuoVadis Limited	459	0.07	415	0.06	9.41
none	429	0.07	403	0.06	5.31
NetLock Halozatbiztonsagi Kft.	428	0.07	425	0.07	-0.38
Firstserver, Inc	395	0.06	402	0.06	-2.80
TC TrustCenter for Security in Data Networks GmbH	357	0.05	392	0.06	-9.91
OCC	352	0.05	354	0.05	-1.63
IPS Certification Authority s.l.	334	0.05	352	0.05	-6.13
Sonera	330	0.05	333	0.05	-1.97
suresupport.com	305	0.05	313	0.05	-3.60
GANDI SAS	292	0.04	267	0.04	8.19
TBS INTERNET	291	0.04	294	0.05	-2.08
National Institute of Informatics	290	0.04	271	0.04	5.86
TAIWAN-CA.COM Inc.	285	0.04	274	0.04	2.90
WTF ALFA	282	0.04	275	0.04	1.44
FNMT	275	0.04	266	0.04	2.27
Parallels, Inc.	258	0.04	244	0.04	4.60
EUNETIC GmbH	255	0.04	251	0.04	0.50
Internet Widgits Pty Ltd	249	0.04	236	0.04	4.37
TDC	248	0.04	251	0.04	-2.26
OVH SAS	240	0.04	232	0.04	2.34
ICP-Brasil	236	0.04	234	0.04	-0.23
Apache HTTP Server	203	0.03	221	0.03	-9.13
WebSpace-Forum, Thomas Wendt	201	0.03	199	0.03	-0.08
SonicWALL, Inc.	200	0.03	199	0.03	-0.58
Digi-Sign Limited	198	0.03	203	0.03	-3.51
InterWorx	191	0.03	204	0.03	-7.38
GLOBE HOSTING CERTIFICATION AUTHORITY	179	0.03	160	0.02	10.67
AusCERT	179	0.03	159	0.02	11.37
RBC Hosting Center	173	0.03	164	0.03	4.35
America Online Inc.	173	0.03	173	0.03	-1.08
AddTrust AB	170	0.03	181	0.03	-7.09
Positive Software	162	0.02	167	0.03	-4.04
My Company Ltd	156	0.02	250	0.04	-38.27
RM	154	0.02	156	0.02	-2.34
Zimbra Collaboration Suite	145	0.02	144	0.02	-0.39
TNC	143	0.02	143	0.02	-1.08
CNRS	143	0.02	148	0.02	-4.42
Trustwave Holdings, Inc.	140	0.02	146	0.02	-5.14
SiteGround LLC.	139	0.02	136	0.02	1.11
Getronics PinkRoccade Nederland B.V.	133	0.02	128	0.02	2.79
XRamp Security Services Inc	131	0.02	148	0.02	-12.44
OptimumSSL CA	127	0.02	129	0.02	-2.61
New Dream Network, LLC.	124	0.02	125	0.02	-1.87
Sun Microsystems Inc	114	0.02	119	0.02	-5.23
XX	107	0.02	0	0.00	N/A
WoSign, Inc.	106	0.02	103	0.02	1.81
MULTICERT-CA	106	0.02	105	0.02	-0.13
Wells Fargo	104	0.02	99	0.02	3.92
Unizeto Sp. z o.o.	103	0.02	125	0.02	-18.49
Default Web Site	103	0.02	104	0.02	-2.03
A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr GmbH	102	0.02	102	0.02	-1.08
Government of Korea	100	0.02	0	0.00	N/A
DigiNotar B.V.	100	0.02	101	0.02	-2.06

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.