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	May 2008 Count	May 2008 %	April 2008 Count	April 2008 %	Growth %
Equifax (Geotrust)	99,335	23.08	95,177	23.00	0.37
Verisign	86,428	20.08	84,669	20.46	-1.84
Thawte	51,863	12.05	51,079	12.34	-2.36
Comodo Limited	37,247	8.66	35,660	8.62	0.45
GoDaddy.com, Inc.	25,756	5.98	23,262	5.62	6.48
Unknown	10,641	2.47	10,138	2.45	0.94
Starfield Technologies, Inc.	10,195	2.37	9,923	2.40	-1.20
DigiCert	8,949	2.08	8,349	2.02	3.08
Network Solutions L.L.C.	7,166	1.67	6,790	1.64	1.49
Entrust.net	4,879	1.13	4,741	1.15	-1.03
SWsoft, Inc.	4,193	0.97	4,019	0.97	0.33
GlobalSign nv-sa	4,049	0.94	3,680	0.89	5.81
Comodo CA Limited	3,998	0.93	3,674	0.89	4.65
SomeOrganization	3,477	0.81	3,403	0.82	-1.74
GlobalSign	2,892	0.67	2,577	0.62	7.92
SECOM Trust.net	2,189	0.51	2,148	0.52	-2.00
Cybertrust	2,165	0.50	2,039	0.49	2.11
IPS Certification Authority s.l.	2,016	0.47	1,927	0.47	0.61
SecureTrust Corporation	1,871	0.43	1,728	0.42	4.12
Snake Oil, Ltd	1,833	0.43	1,834	0.44	-3.89
Root CA	1,527	0.35	1,460	0.35	0.58
XRamp Security Services Inc	1,513	0.35	1,503	0.36	-3.19
AddTrust AB	1,479	0.34	1,534	0.37	-7.28
Betrusted Japan Co., Ltd.	1,345	0.31	1,290	0.31	0.27
p1atin.de	1,295	0.30	1,015	0.25	22.69
Secure Business Services, Inc.	1,246	0.29	1,206	0.29	-0.64
TC TrustCenter for Security in Data Networks GmbH	1,192	0.28	1,159	0.28	-1.10
U.S. Government	1,050	0.24	1,027	0.25	-1.68
COMODO CA Limited	843	0.20	773	0.19	4.87
CAcert Inc.	623	0.14	582	0.14	2.94
Akamai Technologies Inc	563	0.13	527	0.13	2.74
ispgateway	536	0.12	518	0.13	-0.49
T-Systems Enterprise Services GmbH	524	0.12	504	0.12	-0.02
Earthlink Inc	445	0.10	460	0.11	-6.97
Unizeto Sp. z o.o.	429	0.10	410	0.10	0.62
Firstserver, Inc.	420	0.10	399	0.10	1.23
Alpha	398	0.09	331	0.08	15.63
GTE Corporation	385	0.09	378	0.09	-2.05
Firstserver, Inc	337	0.08	326	0.08	-0.59
OCC	332	0.08	323	0.08	-1.15
Trusted Secure Certificate Authority	287	0.07	275	0.07	0.36
suresupport.com	280	0.07	277	0.07	-2.79
StartCom Ltd.	270	0.06	257	0.06	1.03
Positive Software Corporation	264	0.06	259	0.06	-1.98
Internet Widgits Pty Ltd	252	0.06	350	0.08	-30.76
TDC	244	0.06	238	0.06	-1.41
NetLock Halozatbiztonsagi Kft.	240	0.06	229	0.06	0.79
BlueHost.Com	221	0.05	217	0.05	-2.06
Digi-Sign Limited	198	0.05	192	0.05	-0.83
RegisterFly.com, inc.	196	0.05	180	0.04	4.71
Sonera	195	0.05	182	0.04	3.04
TBS INTERNET	181	0.04	182	0.04	-4.36
thawte, Inc.	178	0.04	161	0.04	6.32
WTF ALFA	165	0.04	155	0.04	2.37
RM	165	0.04	159	0.04	-0.20
Cybertrust Inc	160	0.04	149	0.04	3.27
Apache HTTP Server	159	0.04	153	0.04	-0.06
FNMT	148	0.03	135	0.03	5.43
Servision Inc.	145	0.03	129	0.03	8.09
Positive Software	143	0.03	145	0.04	-5.16
Default Web Site	132	0.03	122	0.03	4.05
50 below	131	0.03	131	0.03	-3.83
CNRS	128	0.03	125	0.03	-1.53
ICP-Brasil	127	0.03	127	0.03	-3.83
WebSpace-Forum, Thomas Wendt	114	0.03	116	0.03	-5.49
SECOM Trust Systems CO.,LTD.	108	0.03	76	0.02	36.66
Unicert Brasil Certificadora	106	0.02	100	0.02	1.94
TAIWAN-CA.COM Inc.	106	0.02	102	0.02	-0.06
Digital Signature Trust Co.	106	0.02	101	0.02	0.93
ICS_TREE	104	0.02	107	0.03	-6.53
MULTICERT-CA	97	0.02	98	0.02	-4.81
BLUEHOST.COM - Only $6.95/mo	95	0.02	89	0.02	2.65
Sun Microsystems Inc	94	0.02	87	0.02	3.90
New Dream Network, LLC.	94	0.02	88	0.02	2.72
A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr GmbH	92	0.02	91	0.02	-2.78
My Company Ltd	91	0.02	86	0.02	1.76
InterWorx	87	0.02	77	0.02	8.66
CsideNet Co.,Ltd.	87	0.02	84	0.02	-0.40
OptimumSSL CA	83	0.02	81	0.02	-1.46
Betrusted Japan Co.,Ltd.	83	0.02	85	0.02	-6.10
GlobalSign Inc	82	0.02	84	0.02	-6.12
SonicWALL, Inc.	81	0.02	73	0.02	6.71
Comodo Japan Inc.	77	0.02	76	0.02	-2.57
GeoTrust Inc	74	0.02	68	0.02	4.65
Plesk, Inc.	73	0.02	72	0.02	-2.50
Apache Friends	72	0.02	69	0.02	0.35
IceWarp Software	71	0.02	60	0.01	13.80
ChainedSSL	71	0.02	77	0.02	-11.33
WebMoney Transfer	69	0.02	66	0.02	0.54
none	67	0.02	0	0.00	N/A
XYZ Corporation	65	0.02	59	0.01	5.95
ServerAdmin 24	64	0.01	56	0.01	9.90
Ipswitch,Inc.	64	0.01	61	0.01	0.90
HOSTMONSTER.COM - Only $6.95/mo	64	0.01	57	0.01	7.98
"PositiveSoftwareCorporation"	63	0.01	61	0.01	-0.68
Etisalat	62	0.01	60	0.01	-0.63
University of Washington	61	0.01	60	0.01	-2.23
AS Sertifitseerimiskeskus	61	0.01	58	0.01	1.14
TNC	60	0.01	0	0.00	N/A
National Institute of Informatics	60	0.01	57	0.01	1.23

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.