
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 | 73.32 | 1035 | 1201 | 1711 | 1749 | 1781 | 1832 | 1850 | 1927 | 1951 | 1971 | 1986 | 2018 | 2056 | 2109 | 2160 |
| Comodo | 12.76 | 109 | 184 | 202 | 210 | 223 | 228 | 233 | 238 | 321 | 323 | 340 | 358 | 363 | 370 | 376 |
| Other | 12.73 | 144 | 332 | 193 | 209 | 226 | 244 | 257 | 276 | 297 | 311 | 319 | 335 | 344 | 359 | 375 |
| Network Solutions | 0.95 | 0 | 0 | 7 | 8 | 10 | 12 | 12 | 14 | 22 | 22 | 23 | 26 | 26 | 27 | 28 |
| Go Daddy | 0.14 | 0 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 2 | 2 | 2 | 4 | 4 | 4 | 4 |
| Entrust.net | 0.10 | 0 | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 3 |
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 | 28.45 | 547 | 598 | 664 | 676 | 694 | 706 | 719 | 750 | 761 | 775 | 780 | 794 | 803 | 823 | 838 |
| Equifax Secure Inc. | 18.02 | 47 | 188 | 355 | 375 | 390 | 410 | 423 | 446 | 459 | 460 | 462 | 476 | 495 | 513 | 531 |
| VeriSign Trust Network | 12.76 | 248 | 314 | 344 | 349 | 350 | 359 | 357 | 361 | 354 | 359 | 366 | 360 | 362 | 364 | 376 |
| UTN-USERFirst-Hardware | 9.30 | 0 | 0 | 56 | 70 | 88 | 104 | 117 | 135 | 193 | 199 | 213 | 240 | 245 | 262 | 274 |
| Sonera | 8.96 | 0 | 70 | 140 | 153 | 168 | 185 | 192 | 201 | 217 | 224 | 229 | 238 | 245 | 252 | 264 |
| VeriSign, Inc. | 6.38 | 0 | 13 | 52 | 58 | 59 | 68 | 81 | 99 | 110 | 113 | 113 | 135 | 149 | 174 | 188 |
| RSA Data Security, Inc. | 3.90 | 222 | 224 | 206 | 203 | 201 | 196 | 180 | 173 | 167 | 163 | 164 | 147 | 136 | 127 | 115 |
| Thawte Consulting (Pty) Ltd. | 1.83 | 18 | 52 | 57 | 57 | 56 | 57 | 53 | 55 | 55 | 54 | 54 | 54 | 54 | 54 | 54 |
| Comodo Limited | 1.66 | 107 | 155 | 83 | 80 | 81 | 76 | 71 | 60 | 75 | 70 | 70 | 59 | 58 | 52 | 49 |
| Equifax | 1.66 | 40 | 18 | 23 | 24 | 25 | 29 | 29 | 34 | 37 | 38 | 38 | 44 | 48 | 46 | 49 |
| DigiCert Inc | 1.66 | 2 | 7 | 14 | 14 | 17 | 17 | 19 | 24 | 32 | 34 | 34 | 41 | 43 | 46 | 49 |
| AddTrust AB | 1.19 | 0 | 22 | 62 | 59 | 53 | 47 | 44 | 41 | 50 | 50 | 50 | 49 | 46 | 41 | 35 |
| Network Solutions L.L.C. | 0.95 | 0 | 0 | 7 | 8 | 10 | 12 | 12 | 14 | 22 | 22 | 23 | 26 | 26 | 27 | 28 |
| StartCom Ltd. | 0.81 | 0 | 1 | 6 | 8 | 8 | 9 | 13 | 14 | 15 | 18 | 19 | 18 | 19 | 23 | 24 |
| IPS Certification Authority s.l. | 0.64 | 6 | 8 | 16 | 18 | 16 | 17 | 17 | 19 | 18 | 20 | 21 | 21 | 21 | 20 | 19 |
| Comodo CA Limited | 0.51 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 3 | 6 | 9 | 13 | 13 | 15 |
| GlobalSign nv-sa | 0.24 | 4 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| TDC | 0.20 | 0 | 1 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 5 | 5 | 4 | 5 | 6 |
| thawte, Inc. | 0.14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 2 | 3 | 3 | 4 |
| Entrust.net | 0.10 | 0 | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 3 |
| TC TrustCenter for Security in Data Networks GmbH | 0.10 | 1 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 3 |
| Akamai Technologies Inc | 0.07 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 |
| GoDaddy.com, Inc. | 0.07 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 2 |
| Starfield Technologies, Inc. | 0.07 | 0 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| SecureTrust Corporation | 0.07 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 |
| Accenture | 0.03 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Secure Business Services, Inc. | 0.03 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| ChainedSSL | 0.03 | 0 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| UTN - DATACorp SGC | 0.03 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| AddTrust Sweden AB | 0.03 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 |
| XRamp Security Services Inc | 0.03 | 0 | 0 | 3 | 3 | 3 | 2 | 2 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| The USERTRUST Network | 0.03 | 40 | 31 | 6 | 3 | 2 | 3 | 4 | 4 | 3 | 4 | 4 | 2 | 3 | 2 | 1 |
| Akamai | 0.00 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| FreeSSL | 0.00 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Deutsche Telekom AG | 0.00 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| SCANDTRUST AB | 0.00 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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