
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.
The following graph shows the share of sites currently certified by each certificate authority. Brands belonging to the major companies have been grouped together.
The worldwide version of this data is available on a separate page. This data is also available divided into:
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 % |
2005 | 2006 | 2007 | 2008 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | Jan | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Jan | ||
| VeriSign | 63.34 | 2108 | 2251 | 3297 | 3364 | 3421 | 3461 | 3514 | 3587 | 3676 | 3698 | 3754 | 3793 | 3835 | 3904 | 3948 |
| Comodo | 19.70 | 326 | 533 | 720 | 741 | 751 | 764 | 795 | 823 | 1128 | 1133 | 1182 | 1196 | 1207 | 1212 | 1228 |
| Other | 15.90 | 557 | 858 | 509 | 524 | 549 | 598 | 635 | 683 | 773 | 812 | 849 | 890 | 940 | 958 | 991 |
| Network Solutions | 0.53 | 0 | 2 | 5 | 4 | 4 | 6 | 9 | 10 | 16 | 19 | 23 | 26 | 28 | 31 | 33 |
| Entrust.net | 0.34 | 10 | 8 | 12 | 11 | 12 | 16 | 17 | 17 | 17 | 16 | 17 | 18 | 18 | 18 | 21 |
| Go Daddy | 0.19 | 0 | 2 | 5 | 5 | 6 | 7 | 9 | 11 | 11 | 11 | 11 | 11 | 13 | 14 | 12 |
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 | Current % |
2005 | 2006 | 2007 | 2008 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | Jan | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Jan | ||
| Thawte Consulting cc | 22.27 | 1103 | 1158 | 1240 | 1284 | 1294 | 1311 | 1315 | 1314 | 1344 | 1351 | 1353 | 1371 | 1379 | 1383 | 1388 |
| UTN-USERFirst-Hardware | 15.66 | 0 | 0 | 337 | 388 | 426 | 492 | 547 | 588 | 813 | 830 | 886 | 916 | 937 | 953 | 976 |
| Equifax Secure Inc. | 15.31 | 133 | 417 | 664 | 662 | 685 | 707 | 734 | 770 | 804 | 817 | 840 | 861 | 886 | 931 | 954 |
| VeriSign Trust Network | 10.27 | 585 | 613 | 627 | 633 | 638 | 635 | 637 | 650 | 640 | 628 | 642 | 634 | 630 | 635 | 640 |
| VeriSign, Inc. | 5.41 | 1 | 40 | 87 | 98 | 109 | 121 | 138 | 169 | 200 | 222 | 237 | 272 | 288 | 317 | 337 |
| Cybertrust | 5.25 | 0 | 0 | 118 | 130 | 147 | 172 | 189 | 218 | 234 | 253 | 265 | 285 | 304 | 314 | 327 |
| Equifax | 3.05 | 130 | 88 | 108 | 121 | 128 | 132 | 140 | 153 | 165 | 167 | 171 | 178 | 182 | 192 | 190 |
| Nestle | 3.00 | 0 | 41 | 132 | 123 | 117 | 123 | 125 | 130 | 147 | 153 | 160 | 166 | 178 | 187 | 187 |
| TC TrustCenter for Security in Data Networks GmbH | 2.98 | 104 | 142 | 163 | 168 | 173 | 175 | 182 | 187 | 191 | 186 | 184 | 182 | 181 | 183 | 186 |
| GlobalSign nv-sa | 2.23 | 16 | 20 | 98 | 102 | 114 | 113 | 119 | 123 | 125 | 128 | 130 | 132 | 137 | 136 | 139 |
| Thawte Consulting (Pty) Ltd. | 2.23 | 81 | 146 | 136 | 136 | 139 | 139 | 141 | 141 | 139 | 138 | 145 | 140 | 137 | 135 | 139 |
| DigiCert Inc | 2.07 | 9 | 28 | 56 | 58 | 61 | 62 | 60 | 64 | 99 | 103 | 106 | 110 | 114 | 117 | 129 |
| RSA Data Security, Inc. | 1.70 | 338 | 294 | 245 | 245 | 239 | 223 | 210 | 190 | 183 | 177 | 164 | 143 | 140 | 117 | 106 |
| AddTrust AB | 1.62 | 0 | 55 | 178 | 155 | 134 | 99 | 85 | 82 | 121 | 121 | 122 | 116 | 109 | 102 | 101 |
| Comodo Limited | 1.41 | 317 | 449 | 192 | 184 | 176 | 159 | 148 | 134 | 164 | 150 | 138 | 125 | 113 | 101 | 88 |
| StartCom Ltd. | 0.88 | 0 | 9 | 34 | 37 | 35 | 45 | 54 | 55 | 56 | 53 | 56 | 56 | 64 | 57 | 55 |
| WebSpace-Forum, Thomas Wendt | 0.69 | 0 | 0 | 4 | 5 | 5 | 6 | 8 | 9 | 22 | 24 | 32 | 38 | 37 | 41 | 43 |
| Network Solutions L.L.C. | 0.53 | 0 | 2 | 5 | 4 | 4 | 6 | 9 | 10 | 16 | 19 | 23 | 26 | 28 | 31 | 33 |
| T-Systems Enterprise Services GmbH | 0.48 | 0 | 0 | 16 | 22 | 23 | 25 | 24 | 25 | 32 | 34 | 35 | 34 | 33 | 30 | 30 |
| Comodo CA Limited | 0.47 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 9 | 10 | 13 | 15 | 23 | 28 | 29 |
| IPS Certification Authority s.l. | 0.40 | 20 | 20 | 19 | 19 | 18 | 18 | 20 | 20 | 18 | 22 | 22 | 22 | 24 | 26 | 25 |
| TBS INTERNET | 0.35 | 0 | 0 | 10 | 11 | 12 | 12 | 12 | 14 | 18 | 18 | 18 | 19 | 19 | 19 | 22 |
| Entrust.net | 0.34 | 10 | 8 | 12 | 11 | 12 | 16 | 17 | 17 | 17 | 16 | 17 | 18 | 18 | 18 | 21 |
| QuoVadis Trustlink Schweiz AG | 0.27 | 0 | 0 | 1 | 1 | 2 | 2 | 3 | 3 | 3 | 3 | 4 | 6 | 10 | 9 | 17 |
| Migros | 0.13 | 0 | 0 | 0 | 0 | 0 | 2 | 3 | 4 | 4 | 5 | 5 | 8 | 8 | 8 | 8 |
| Starfield Technologies, Inc. | 0.13 | 0 | 2 | 5 | 5 | 6 | 7 | 8 | 9 | 9 | 9 | 9 | 9 | 10 | 9 | 8 |
| CAcert Inc. | 0.10 | 0 | 0 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 6 | 6 |
| Akamai Technologies Inc | 0.08 | 0 | 0 | 3 | 3 | 3 | 3 | 3 | 4 | 3 | 5 | 5 | 5 | 5 | 5 | 5 |
| UTN - DATACorp SGC | 0.06 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 2 | 3 | 2 | 4 |
| Trusted Secure Certificate Authority | 0.06 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 3 | 4 |
| The USERTRUST Network | 0.06 | 127 | 89 | 23 | 14 | 13 | 15 | 14 | 11 | 8 | 10 | 14 | 8 | 8 | 7 | 4 |
| GoDaddy.com, Inc. | 0.06 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 2 | 2 | 2 | 2 | 3 | 5 | 4 |
| thawte, Inc. | 0.05 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 3 | 3 | 3 | 3 | 3 |
| Secure Business Services, Inc. | 0.05 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 3 | 3 |
| QuoVadis Limited | 0.05 | 0 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 3 | 3 |
| SecureTrust Corporation | 0.05 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 3 | 3 |
| Cybertrust Inc | 0.05 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Swisscom | 0.03 | 0 | 0 | 7 | 7 | 9 | 10 | 10 | 11 | 10 | 8 | 7 | 7 | 6 | 4 | 2 |
| GlobalSign Inc | 0.03 | 0 | 0 | 1 | 1 | 1 | 2 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| XRamp Security Services Inc | 0.03 | 2 | 2 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 |
| IPS Seguridad CA | 0.03 | 0 | 0 | 0 | 0 | 1 | 2 | 2 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
| Accenture | 0.02 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| ChainedSSL | 0.02 | 0 | 7 | 3 | 3 | 3 | 3 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| GlobalTrust | 0.02 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| Sun Microsystems Inc | 0.02 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| GlobalSign | 0.02 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 |
| Root CA | 0.00 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Akamai | 0.00 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Digi-Sign Limited | 0.00 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| FreeSSL | 0.00 | 11 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Deutsche Telekom AG | 0.00 | 13 | 15 | 6 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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