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 2001 Count	May 2001 %	April 2001 Count	April 2001 %	Growth %
Verisign	25,950	49.31	31,566	53.42	-7.69
Thawte	17,931	34.07	19,281	32.63	4.43
Equifax Secure Inc	2,827	5.37	1,466	2.48	116.53
Snake Oil, Ltd	1,143	2.17	1,140	1.93	12.58
SomeOrganization	527	1.00	423	0.72	39.90
Unknown	476	0.90	351	0.59	52.28
Entrust.net	216	0.41	189	0.32	28.33
Internet Widgits Pty Ltd	109	0.21	99	0.17	23.63
*.ceti.pl	74	0.14	73	0.12	13.83
Ring Datacom	70	0.13	70	0.12	12.29
ProAxis Communications, a us.Net company	60	0.11	0	0.00	N/A
Franke & Partner	58	0.11	58	0.10	12.29
Netland Internet Services	49	0.09	50	0.08	10.04
Corpex Ltd	49	0.09	63	0.11	-12.66
Thawte Certification	48	0.09	63	0.11	-14.45
zNET Internet Services	47	0.09	47	0.08	12.29
TC TrustCenter for Security in Data Networks GmbH	47	0.09	55	0.09	-4.04
BSG	41	0.08	43	0.07	7.07
Media3 Technologies L.L.C.	40	0.08	43	0.07	4.45
U.S. Government	39	0.07	125	0.21	-64.97
Web Hosting	37	0.07	38	0.06	9.33
Plesk Inc.	36	0.07	24	0.04	68.43
Onyx Internet	34	0.06	36	0.06	6.05
Vest Internett	30	0.06	30	0.05	12.29
DeZines Web Hosting	29	0.06	29	0.05	12.29
TAT GmbH	27	0.05	29	0.05	4.54
Indra's Net, Inc.	25	0.05	25	0.04	12.29
GlobalSign nv-sa	24	0.05	17	0.03	58.52
Powercom Corporation	23	0.04	24	0.04	7.61
Advanced Extranet Server	22	0.04	20	0.03	23.52
SCNC	20	0.04	16	0.03	40.36
Radio Data Group Inc	20	0.04	22	0.04	2.08
Linux Test Server	20	0.04	22	0.04	2.08
HAL interactive, d.o.o.	20	0.04	20	0.03	12.29
DeZines Web Hosting Corporation	20	0.04	21	0.04	6.94
GTE Corporation	18	0.03	14	0.02	44.37
Dempewolf Auto	18	0.03	0	0.00	N/A
PolCard S.A.	17	0.03	0	0.00	N/A
Deutsche Telekom AG	17	0.03	18	0.03	6.05
Webmaster	16	0.03	20	0.03	-10.17
comDesign	14	0.03	14	0.02	12.29
Estore Corp	14	0.03	13	0.02	20.93
Superb Internet Corp.	13	0.02	13	0.02	12.29
Ipswitch,Inc.	13	0.02	16	0.03	-8.77
IndyWeb Inc.	13	0.02	14	0.02	4.27
Swisskey AG	12	0.02	14	0.02	-3.75
ProSalg as	12	0.02	12	0.02	12.29
Barak ITC	12	0.02	12	0.02	12.29
ANET St. Louis	12	0.02	14	0.02	-3.75
Oy Multi.fi Finland Ab Ltd.	11	0.02	11	0.02	12.29
Cybermarket	11	0.02	11	0.02	12.29
WebNexus Communications	10	0.02	10	0.02	12.29
Web Site Fortress	10	0.02	9	0.02	24.76
Powersurge Technologies, Inc.	10	0.02	10	0.02	12.29
Algarvenet	10	0.02	11	0.02	2.08
Wantree Internet	9	0.02	10	0.02	1.06
A&S Systemtechnik	9	0.02	9	0.02	12.29
the Internet Outlet	8	0.02	8	0.01	12.29
i-Planet	8	0.02	9	0.02	-0.19
IPS Seguridad CA	8	0.02	0	0.00	N/A
phpwebhosting.com	7	0.01	8	0.01	-1.75
Xtended Internet	7	0.01	0	0.00	N/A
SYLABA Internet	7	0.01	7	0.01	12.29
Media3 Inc	7	0.01	8	0.01	-1.75
Logical Net Corp	7	0.01	0	0.00	N/A
Idonex AB	7	0.01	9	0.02	-12.66
IPrimus USA	7	0.01	7	0.01	12.29
CyberGate	7	0.01	8	0.01	-1.75
CHT Software Service GmbH	7	0.01	0	0.00	N/A
trash.net	6	0.01	6	0.01	12.29
Your Organization	6	0.01	7	0.01	-3.75
Q Web Services	6	0.01	0	0.00	N/A
Netalia Internet Ltd	6	0.01	0	0.00	N/A
GlaxoSmithKline	6	0.01	0	0.00	N/A
CyberTrust Japan, Inc.	6	0.01	0	0.00	N/A
CompuSource (Pty) Ltd	6	0.01	0	0.00	N/A
ANET Internet Solutions	6	0.01	0	0.00	N/A
domainfactory GmbH	5	0.01	0	0.00	N/A
debis Systemhaus Oesterreich GmbH	5	0.01	0	0.00	N/A
bright.net North	5	0.01	0	0.00	N/A
Versaggi Information Systems Inc	5	0.01	7	0.01	-19.79
Tartu University	5	0.01	0	0.00	N/A
Stroke of Color, Inc.	5	0.01	0	0.00	N/A
Stargate	5	0.01	0	0.00	N/A
NECTEC	5	0.01	8	0.01	-29.82
Monline.net Bauer + Kirch GmbH	5	0.01	0	0.00	N/A
Magpage Internet Services	5	0.01	0	0.00	N/A
Kommunedata	5	0.01	0	0.00	N/A
KPNQwest Czechia s.r.o	5	0.01	0	0.00	N/A
Irenyx Data Group	5	0.01	0	0.00	N/A
Internet Solutions	5	0.01	0	0.00	N/A
IMS	5	0.01	0	0.00	N/A
Hughes Media	5	0.01	0	0.00	N/A
FUN Kommunikationssysteme GmbH	5	0.01	0	0.00	N/A
Extend.net	5	0.01	0	0.00	N/A
Energy Sciences Network	5	0.01	0	0.00	N/A
CyberGate, Inc.	5	0.01	0	0.00	N/A
Covalent Technologies, Inc.	5	0.01	10	0.02	-43.86
Bewley Internet Solutions Inc.	5	0.01	7	0.01	-19.79
Arge Daten Oesterreichische Gesellschaft fuer Datenschutz	5	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.