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 2008 Count	April 2008 %	March 2008 Count	March 2008 %	Growth %
Equifax (Geotrust)	95,177	23.00	94,091	23.06	-0.27
Verisign	84,669	20.46	84,678	20.75	-1.42
Thawte	51,079	12.34	50,527	12.38	-0.33
Comodo Limited	35,660	8.62	34,946	8.56	0.61
GoDaddy.com, Inc.	23,262	5.62	21,717	5.32	5.61
Unknown	10,138	2.45	10,050	2.46	-0.54
Starfield Technologies, Inc.	9,923	2.40	10,350	2.54	-5.47
DigiCert	8,349	2.02	7,945	1.95	3.61
Network Solutions L.L.C.	6,790	1.64	6,494	1.59	3.09
Entrust.net	4,741	1.15	4,652	1.14	0.48
SWsoft, Inc.	4,019	0.97	3,977	0.97	-0.37
GlobalSign nv-sa	3,680	0.89	3,187	0.78	13.84
Comodo CA Limited	3,674	0.89	3,446	0.84	5.12
SomeOrganization	3,403	0.82	3,443	0.84	-2.55
GlobalSign	2,577	0.62	2,267	0.56	12.08
SECOM Trust.net	2,148	0.52	2,164	0.53	-2.14
Cybertrust	2,039	0.49	1,865	0.46	7.79
IPS Certification Authority s.l.	1,927	0.47	1,843	0.45	3.09
Snake Oil, Ltd	1,834	0.44	1,892	0.46	-4.43
SecureTrust Corporation	1,728	0.42	1,577	0.39	8.03
AddTrust AB	1,534	0.37	1,975	0.48	-23.42
XRamp Security Services Inc	1,503	0.36	1,569	0.38	-5.55
Root CA	1,460	0.35	1,451	0.36	-0.80
Betrusted Japan Co., Ltd.	1,290	0.31	1,188	0.29	7.06
Secure Business Services, Inc.	1,206	0.29	1,203	0.29	-1.16
TC TrustCenter for Security in Data Networks GmbH	1,159	0.28	1,153	0.28	-0.89
U.S. Government	1,027	0.25	1,038	0.25	-2.45
p1atin.de	1,015	0.25	809	0.20	23.70
COMODO CA Limited	773	0.19	692	0.17	10.13
CAcert Inc.	582	0.14	549	0.13	4.52
Akamai Technologies Inc	527	0.13	490	0.12	6.04
ispgateway	518	0.13	512	0.13	-0.25
T-Systems Enterprise Services GmbH	504	0.12	493	0.12	0.79
Earthlink Inc	460	0.11	475	0.12	-4.52
Unizeto Sp. z o.o.	410	0.10	396	0.10	2.08
Firstserver, Inc.	399	0.10	392	0.10	0.35
GTE Corporation	378	0.09	367	0.09	1.55
Internet Widgits Pty Ltd	350	0.08	180	0.04	91.71
Alpha	331	0.08	245	0.06	33.20
Firstserver, Inc	326	0.08	318	0.08	1.07
OCC	323	0.08	333	0.08	-4.37
suresupport.com	277	0.07	275	0.07	-0.69
Trusted Secure Certificate Authority	275	0.07	254	0.06	6.74
Positive Software Corporation	259	0.06	279	0.07	-8.47
StartCom Ltd.	257	0.06	252	0.06	0.55
TDC	238	0.06	236	0.06	-0.57
NetLock Halozatbiztonsagi Kft.	229	0.06	219	0.05	3.10
BlueHost.Com	217	0.05	218	0.05	-1.86
Digi-Sign Limited	192	0.05	190	0.05	-0.37
TBS INTERNET	182	0.04	178	0.04	0.81
Sonera	182	0.04	167	0.04	7.45
RegisterFly.com, inc.	180	0.04	192	0.05	-7.57
thawte, Inc.	161	0.04	144	0.04	10.23
RM	159	0.04	163	0.04	-3.83
WTF ALFA	155	0.04	146	0.04	4.67
Apache HTTP Server	153	0.04	161	0.04	-6.31
Cybertrust Inc	149	0.04	131	0.03	12.14
Positive Software	145	0.04	137	0.03	4.35
FNMT	135	0.03	129	0.03	3.18
50 below	131	0.03	131	0.03	-1.41
Servision Inc.	129	0.03	63	0.02	101.88
ICP-Brasil	127	0.03	125	0.03	0.17
CNRS	125	0.03	123	0.03	0.20
Default Web Site	122	0.03	119	0.03	1.08
WebSpace-Forum, Thomas Wendt	116	0.03	110	0.03	3.97
ICS_TREE	107	0.03	104	0.03	1.44
TAIWAN-CA.COM Inc.	102	0.02	102	0.02	-1.41
Digital Signature Trust Co.	101	0.02	98	0.02	1.61
Unicert Brasil Certificadora	100	0.02	98	0.02	0.61
MULTICERT-CA	98	0.02	96	0.02	0.65
A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr GmbH	91	0.02	92	0.02	-2.48
BLUEHOST.COM - Only $6.95/mo	89	0.02	84	0.02	4.46
New Dream Network, LLC.	88	0.02	87	0.02	-0.27
Sun Microsystems Inc	87	0.02	87	0.02	-1.41
My Company Ltd	86	0.02	85	0.02	-0.25
Betrusted Japan Co.,Ltd.	85	0.02	114	0.03	-26.49
GlobalSign Inc	84	0.02	95	0.02	-12.82
CsideNet Co.,Ltd.	84	0.02	79	0.02	4.83
OptimumSSL CA	81	0.02	78	0.02	2.39
InterWorx	77	0.02	77	0.02	-1.41
ChainedSSL	77	0.02	87	0.02	-12.74
SECOM Trust Systems CO.,LTD.	76	0.02	0	0.00	N/A
Comodo Japan Inc.	76	0.02	82	0.02	-8.62
SonicWALL, Inc.	73	0.02	68	0.02	5.84
Plesk, Inc.	72	0.02	80	0.02	-11.27
Apache Friends	69	0.02	60	0.01	13.38
GeoTrust Inc	68	0.02	56	0.01	19.72
WebMoney Transfer	66	0.02	64	0.02	1.67
Ipswitch,Inc.	61	0.01	64	0.02	-6.03
"PositiveSoftwareCorporation"	61	0.01	59	0.01	1.94
University of Washington	60	0.01	59	0.01	0.26
IceWarp Software	60	0.01	65	0.02	-8.99
Etisalat	60	0.01	59	0.01	0.26
XYZ Corporation	59	0.01	58	0.01	0.29
University of Maryland	58	0.01	58	0.01	-1.41
AS Sertifitseerimiskeskus	58	0.01	58	0.01	-1.41
National Institute of Informatics	57	0.01	52	0.01	8.07
HOSTMONSTER.COM - Only $6.95/mo	57	0.01	0	0.00	N/A
ServerAdmin 24	56	0.01	0	0.00	N/A
SiteGround LLC	54	0.01	54	0.01	-1.41

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.