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	February 2006 Count	February 2006 %	January 2006 Count	January 2006 %	Growth %
Verisign	73,317	29.73	72,744	30.34	-1.99
Equifax (Geotrust)	47,669	19.33	45,304	18.89	2.32
Thawte	38,021	15.42	37,372	15.59	-1.07
Comodo Limited	19,620	7.96	19,541	8.15	-2.36
Starfield Technologies, Inc.	6,339	2.57	5,680	2.37	8.53
Unknown	4,382	1.78	4,056	1.69	5.06
Entrust.net	3,935	1.60	3,810	1.59	0.44
SomeOrganization	3,055	1.24	2,985	1.24	-0.47
AddTrust AB	2,941	1.19	2,239	0.93	27.74
SWsoft, Inc.	2,078	0.84	1,971	0.82	2.52
ChainedSSL	2,050	0.83	1,868	0.78	6.72
Snake Oil, Ltd	1,987	0.81	2,009	0.84	-3.82
The USERTRUST Network	1,828	0.74	2,050	0.85	-13.29
U.S. Government	1,422	0.58	1,412	0.59	-2.07
XRamp Security Services Inc	1,392	0.56	1,327	0.55	2.01
DigiCert Inc.	1,152	0.47	1,099	0.46	1.94
Network Solutions L.L.C.	899	0.36	727	0.30	20.25
TC TrustCenter for Security in Data Networks GmbH	772	0.31	751	0.31	-0.04
IPS Certification Authority s.l.	747	0.30	737	0.31	-1.43
GlobalSign nv-sa	630	0.26	605	0.25	1.26
Root CA	595	0.24	560	0.23	3.32
Betrusted Japan Co.,Ltd.	388	0.16	358	0.15	5.39
FreeSSL	308	0.12	367	0.15	-18.39
Deutsche Telekom AG	289	0.12	294	0.12	-4.41
Plesk, Inc.	240	0.10	289	0.12	-19.24
ispgateway	232	0.09	224	0.09	0.72
Positive Software Corporation	228	0.09	160	0.07	38.57
GTE Corporation	221	0.09	231	0.10	-6.96
Ipswitch,Inc.	188	0.08	189	0.08	-3.27
Akamai	173	0.07	160	0.07	5.15
TDC	168	0.07	157	0.07	4.06
Comodo Japan Inc.	168	0.07	154	0.06	6.09
Kubota Systems Inc.	162	0.07	154	0.06	2.30
Apache HTTP Server	140	0.06	148	0.06	-8.01
Positive Software	137	0.06	135	0.06	-1.31
Plesk Inc.	118	0.05	126	0.05	-8.93
Internet Widgits Pty Ltd	115	0.05	112	0.05	-0.15
Unizeto Sp. z o.o.	113	0.05	103	0.04	6.69
NetLock Halozatbiztonsagi Kft.	109	0.04	100	0.04	6.00
OCC	103	0.04	101	0.04	-0.83
Firstserver, Inc.	92	0.04	77	0.03	16.19
GlobalSign Inc	91	0.04	85	0.04	4.11
IceWarp Software	90	0.04	85	0.04	2.97
Digital Signature Trust Co.	88	0.04	92	0.04	-6.98
Thawte Certification	83	0.03	88	0.04	-8.28
ICS_TREE	83	0.03	82	0.03	-1.57
CRU	81	0.03	71	0.03	10.94
RM	76	0.03	71	0.03	4.09
CNRS	74	0.03	68	0.03	5.83
Trusted Secure Certificate Authority	70	0.03	61	0.03	11.59
Equifax Secure Inc	66	0.03	66	0.03	-2.75
StartCom Ltd.	65	0.03	53	0.02	19.26
NTT Communications Corporation	65	0.03	56	0.02	12.87
XYZ Corporation	61	0.02	58	0.02	2.28
ICP-Brasil	60	0.02	59	0.02	-1.11
United Network Communications Co., Ltd.	59	0.02	59	0.02	-2.75
Japan Certification Services, Inc.	59	0.02	56	0.02	2.46
Sun Microsystems Inc	58	0.02	55	0.02	2.55
MULTICERT-CA	55	0.02	53	0.02	0.92
Stunnel Developers Ltd	52	0.02	46	0.02	9.93
WebMoney Transfer	51	0.02	50	0.02	-0.81
My Company Ltd	49	0.02	49	0.02	-2.75
UniCERT Brasil Certificadora	48	0.02	51	0.02	-8.47
FNMT	48	0.02	44	0.02	6.09
BlueHost.Com	46	0.02	42	0.02	6.51
Hostgator	44	0.02	42	0.02	1.88
CAcert Inc.	42	0.02	0	0.00	N/A
TAIWAN-CA.COM	40	0.02	35	0.01	11.14
SCNC	40	0.02	41	0.02	-5.13
S1 Corporation	40	0.02	37	0.02	5.13
DFN-CERT Services GmbH	39	0.02	41	0.02	-7.50
Temp Certificate!	38	0.02	36	0.02	2.65
University of Maryland	37	0.02	36	0.02	-0.05
SuSE Linux Web Server	36	0.01	38	0.02	-7.87
Digi-Sign Limited	36	0.01	0	0.00	N/A
Carnegie Mellon University	36	0.01	33	0.01	6.09
Beocity	36	0.01	36	0.02	-2.75
Stalker Software, Inc.	35	0.01	33	0.01	3.14
Etisalat	35	0.01	34	0.01	0.11
Default Web Site	33	0.01	27	0.01	18.86
A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr GmbH	33	0.01	32	0.01	0.28
cv. Candi Internet	31	0.01	30	0.01	0.49
Postecom S.p.A.	31	0.01	26	0.01	15.95
WEBMASTERS.COM	30	0.01	29	0.01	0.60
Sonera	30	0.01	28	0.01	4.19
SSL	30	0.01	29	0.01	0.60
Pro Futuro S.A.	30	0.01	31	0.01	-5.89
CFC	30	0.01	27	0.01	8.05
Massachusetts Institute of Technology	29	0.01	27	0.01	4.45
IT Bureau of Hainan Province	29	0.01	26	0.01	8.47
CETI	29	0.01	32	0.01	-11.87
Audkenni hf.	29	0.01	31	0.01	-9.03
domainsofnote.com	28	0.01	28	0.01	-2.75
University of Washington	28	0.01	27	0.01	0.85
University of Helsinki	28	0.01	28	0.01	-2.75
Prvni certifikacni autorita a.s.	28	0.01	28	0.01	-2.75
Webmin Software	27	0.01	31	0.01	-15.30
LGPKI	27	0.01	0	0.00	N/A
E-Telbank Sp. z o.o.	27	0.01	27	0.01	-2.75
state-institutions	26	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.