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 2004 Count	April 2004 %	March 2004 Count	March 2004 %	Growth %
Verisign	69,412	39.66	68,949	40.04	-0.94
Thawte	34,014	19.43	33,990	19.74	-1.53
Equifax (Geotrust)	26,150	14.94	25,421	14.76	1.22
Comodo Limited	11,081	6.33	10,396	6.04	4.89
SomeOrganization	2,575	1.47	2,552	1.48	-0.71
Entrust.net	2,260	1.29	2,191	1.27	1.50
Snake Oil, Ltd	2,222	1.27	2,234	1.30	-2.13
U.S. Government	1,222	0.70	1,190	0.69	1.05
Unknown	966	0.55	895	0.52	6.21
The USERTRUST Network	881	0.50	830	0.48	4.45
FreeSSL	749	0.43	705	0.41	4.54
Plesk, Inc.	551	0.31	560	0.33	-3.18
IPS Certification Authority s.l.	523	0.30	537	0.31	-4.16
TC TrustCenter for Security in Data Networks GmbH	447	0.26	423	0.25	3.99
SWsoft, Inc.	367	0.21	285	0.17	26.71
GlobalSign nv-sa	339	0.19	329	0.19	1.39
Plesk Inc.	338	0.19	349	0.20	-4.70
GTE Corporation	226	0.13	223	0.13	-0.27
Deutsche Telekom AG	223	0.13	218	0.13	0.66
Ipswitch,Inc.	218	0.12	216	0.13	-0.69
Baltimore Technologies Japan Co.,Ltd.	144	0.08	131	0.08	8.17
Equifax Secure Inc	142	0.08	157	0.09	-11.00
XRamp Security Services Inc	138	0.08	96	0.06	41.45
ispgateway	134	0.08	133	0.08	-0.86
Thawte Certification	113	0.06	131	0.08	-15.12
Kubota Systems Inc.	106	0.06	105	0.06	-0.66
Sedo GmbH	82	0.05	72	0.04	12.07
Digital Signature Trust Co.	75	0.04	74	0.04	-0.27
NetLock Halozatbiztonsagi Kft.	73	0.04	67	0.04	7.21
Starfield Technologies, Inc.	70	0.04	47	0.03	46.56
IceWarp Software	69	0.04	67	0.04	1.34
Internet Widgits Pty Ltd	67	0.04	64	0.04	3.02
Positive Software	65	0.04	51	0.03	25.41
Advanced Extranet Server	64	0.04	66	0.04	-4.58
TDC	63	0.04	59	0.03	5.07
TAIWAN-CA.COM Inc.	54	0.03	51	0.03	4.19
CsideNet	53	0.03	52	0.03	0.29
XYZ Corporation	52	0.03	51	0.03	0.33
Root CA	49	0.03	39	0.02	23.63
Unizeto Sp. z o.o.	47	0.03	43	0.02	7.56
Apache HTTP Server	46	0.03	48	0.03	-5.70
Hurricane Electric Internet Services	45	0.03	45	0.03	-1.60
CETI	42	0.02	45	0.03	-8.16
Webmin Software	41	0.02	41	0.02	-1.60
United Network Communications Co., Ltd.	41	0.02	33	0.02	22.26
Beocity	40	0.02	41	0.02	-4.00
Akamai	40	0.02	35	0.02	12.46
University of Florida	39	0.02	37	0.02	3.72
OCC	39	0.02	36	0.02	6.60
WebMoney Transfer	37	0.02	41	0.02	-11.20
SCNC	37	0.02	37	0.02	-1.60
Communitymusician	37	0.02	37	0.02	-1.60
KICA	35	0.02	31	0.02	11.10
Sun Cobalt	34	0.02	33	0.02	1.38
NeoNova B.V.	32	0.02	32	0.02	-1.60
ICS_TREE	32	0.02	30	0.02	4.96
CNRS	32	0.02	29	0.02	8.58
Tele Danmark	31	0.02	27	0.02	12.98
Sun Microsystems Inc	31	0.02	27	0.02	12.98
Stalker Software, Inc.	31	0.02	33	0.02	-7.56
Franke & Partner	29	0.02	29	0.02	-1.60
University of Maryland	28	0.02	26	0.02	5.97
Deutsches Forschungsnetz	28	0.02	29	0.02	-4.99
MULTICERT-CA	26	0.01	24	0.01	6.60
Japan Certification Services, Inc.	26	0.01	24	0.01	6.60
Ensim Corporation	26	0.01	29	0.02	-11.78
Your Organization	25	0.01	24	0.01	2.50
Azero	25	0.01	21	0.01	17.15
UniCERT Brasil Certificadora	24	0.01	23	0.01	2.68
Technische Universitaet Chemnitz	24	0.01	24	0.01	-1.60
Massachusetts Institute of Technology	24	0.01	24	0.01	-1.60
Temp Certificate!	23	0.01	25	0.01	-9.47
ICP-Brasil	23	0.01	22	0.01	2.88
University of Helsinki	22	0.01	21	0.01	3.09
Stunnel Developers Ltd	21	0.01	20	0.01	3.32
SCANDTRUST AB	21	0.01	20	0.01	3.32
FNMT	21	0.01	20	0.01	3.32
Etisalat	21	0.01	24	0.01	-13.90
Advantagecom Networks, Inc.	21	0.01	23	0.01	-10.15
ROOT	20	0.01	22	0.01	-10.54
PVT a.s.	20	0.01	23	0.01	-14.43
PKI Partner AB	20	0.01	20	0.01	-1.60
FAS	20	0.01	20	0.01	-1.60
Carnegie Mellon University	20	0.01	21	0.01	-6.28
Audkenni hf.	20	0.01	20	0.01	-1.60
The Chinese University of Hong Kong	19	0.01	17	0.01	9.98
Aaex Corp.	19	0.01	20	0.01	-6.52
Usermin Webserver	18	0.01	18	0.01	-1.60
Onyx Internet	18	0.01	18	0.01	-1.60
My Company Ltd	18	0.01	20	0.01	-11.44
Career Education Corporation	18	0.01	18	0.01	-1.60
1&1 Internet Limited	18	0.01	20	0.01	-11.44
pair Networks	17	0.01	17	0.01	-1.60
media3	17	0.01	17	0.01	-1.60
Web Hosting	17	0.01	17	0.01	-1.60
SOGO KEIBI HOSHO CO.LTD	17	0.01	24	0.01	-30.30
Postecom s.p.a.	17	0.01	0	0.00	N/A
Logacont AG	17	0.01	17	0.01	-1.60
INFN	17	0.01	0	0.00	N/A
Hongkong Post	17	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.