Certification Services

This analysis relates to those sites found in the survey where the common name in the certificate matched the hostname, and the certificate's digital signature was not detected as being self-signed.

Market Share of Domain-Validated Certificates

The following graph shows the share of sites currently certified by each certificate authority. Brands belonging to the major companies have been grouped together.

Data for individual countries can be obtained by following the "by CA" links on our main geographical analysis page. Data for all valid certificates is available on the main certificate authority page.

The following table and graph show the change over time of the number of sites certified by the main CA companies. The different brands of the major players are grouped together (so RSA Data Security & Thawte are included in Verisign; Equifax and UserTrust are included in GeoTrust).

Authority	Current %	2006	2007	2008												2009
		Jan	Jan	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Jan
Go Daddy	47.37	24763	53103	123013	132959	143779	153571	157075	161252	169986	178445	180795	197351	207115	217154	226254
VeriSign	44.35	3177	144066	180029	181912	184467	187077	190031	193162	196079	197342	201542	204234	207298	209832	211830
Comodo	4.24	468	3375	9762	10526	10758	11539	11974	12362	13031	13631	14441	15331	17348	18646	20229
GlobalSign	2.80	0	0	0	534	752	881	1099	1267	9717	10440	11124	11579	12165	12732	13395
Other	1.24	4185	6687	8435	8381	8198	8141	8021	7850	7691	7499	7409	7258	6353	6143	5939
GeoTrust	0.00	107697	0	0	0	0	0	0	0	0	0	0	0	0	0	0

The following graph and table show the complete results by certificate authority. These results are broken out into the individual companies and brands, as given by the organisation field on the certificate.

Authority	Group	Current %	2006	2007	2008												2009
			Jan	Jan	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Jan
GoDaddy.com, Inc.	Go Daddy	42.93	0	0	88901	102195	114319	124733	129133	134055	143544	152641	156310	173547	183949	194907	205056
Equifax Secure Inc.	VeriSign	27.11	97507	108225	109811	110758	112144	113632	115496	117582	119280	120468	122896	124326	126173	128016	129482
Equifax	VeriSign	12.85	3377	22378	52901	53496	54203	54843	55387	56034	56759	56511	57788	58724	59703	60658	61394
Starfield Technologies, Inc.	Go Daddy	4.44	24763	53103	34112	30764	29460	28838	27942	27197	26442	25804	24485	23804	23166	22247	21198
Thawte Consulting cc	VeriSign	4.35	0	11318	16704	17071	17566	18093	18611	19038	19541	19865	20351	20685	20971	20983	20786
Comodo CA Limited	Comodo	4.05	0	777	8964	9770	10051	10882	11352	11789	12516	13161	14070	15016	16330	17701	19360
GlobalSign nv-sa	GlobalSign	2.24	0	0	0	0	0	0	0	0	8251	8844	9367	9681	10011	10282	10686
Root CA		1.18	3218	4272	5277	5359	5353	5466	5610	5628	5742	5720	5818	5872	5880	5785	5631
Alpha	GlobalSign	0.57	0	0	0	534	752	881	1099	1267	1466	1596	1757	1898	2154	2450	2709
RegisterFly.com, inc.	Comodo	0.12	0	305	953	902	855	838	780	752	722	721	741	737	706	637	565
StartCom Ltd.		0.05	961	2110	2205	2120	1990	1837	1631	1470	1227	1058	850	649	473	358	217
Positive Software Corporation	Comodo	0.04	468	2595	757	706	658	600	564	507	444	392	291	234	227	218	212
The USERTRUST Network	VeriSign	0.04	6142	1393	571	547	523	486	520	496	494	496	505	497	450	174	168
KICA		0.02	0	0	0	0	0	0	0	0	0	0	0	0	0	0	91
UTN-USERFirst-Hardware	Comodo	0.02	0	3	41	50	49	57	58	66	71	78	80	81	85	90	92
ChainedSSL	VeriSign	0.00	448	124	30	29	27	23	17	12	5	2	2	2	1	1	0
FreeSSL	VeriSign	0.00	223	30	12	11	4	0	0	0	0	0	0	0	0	0	0
TP Internet Sp. z o.o.		0.00	6	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Thawte Consulting (Pty) Ltd.	VeriSign	0.00	3177	598	0	0	0	0	0	0	0	0	0	0	0	0	0