
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 | 70.78 | 1798 | 1913 | 3177 | 3239 | 3302 | 3363 | 3417 | 3551 | 3660 | 3728 | 3776 | 3831 | 3862 | 3919 | 3987 |
| Comodo | 20.33 | 256 | 482 | 556 | 555 | 570 | 581 | 613 | 622 | 980 | 1001 | 1031 | 1054 | 1078 | 1127 | 1145 |
| Other | 7.56 | 399 | 793 | 147 | 150 | 146 | 156 | 161 | 177 | 214 | 215 | 212 | 261 | 332 | 379 | 426 |
| Entrust.net | 0.66 | 15 | 17 | 18 | 19 | 20 | 21 | 22 | 25 | 31 | 35 | 35 | 35 | 35 | 35 | 37 |
| Network Solutions | 0.50 | 0 | 2 | 9 | 10 | 13 | 13 | 13 | 13 | 19 | 20 | 22 | 24 | 24 | 26 | 28 |
| AmbironTrustWave | 0.18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 10 | 10 | 9 | 9 | 9 | 10 |
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 | 16.63 | 570 | 618 | 757 | 779 | 788 | 801 | 817 | 854 | 888 | 889 | 911 | 915 | 916 | 920 | 937 |
| Equifax Secure Inc. | 16.14 | 162 | 555 | 747 | 751 | 765 | 769 | 789 | 788 | 821 | 834 | 855 | 873 | 881 | 891 | 909 |
| VeriSign Trust Network | 12.46 | 490 | 587 | 665 | 685 | 695 | 696 | 689 | 717 | 716 | 729 | 724 | 715 | 701 | 703 | 702 |
| UTN-USERFirst-Hardware | 12.21 | 0 | 0 | 207 | 230 | 252 | 277 | 321 | 353 | 512 | 534 | 562 | 594 | 624 | 668 | 688 |
| Equifax | 10.42 | 87 | 106 | 290 | 312 | 348 | 378 | 401 | 440 | 476 | 502 | 503 | 523 | 531 | 561 | 587 |
| VeriSign, Inc. | 10.31 | 0 | 100 | 245 | 259 | 268 | 289 | 312 | 366 | 400 | 430 | 449 | 483 | 532 | 558 | 581 |
| Comodo Limited | 3.82 | 254 | 413 | 201 | 183 | 176 | 164 | 155 | 146 | 300 | 296 | 290 | 270 | 248 | 237 | 215 |
| RSA Data Security, Inc. | 3.30 | 721 | 555 | 387 | 371 | 359 | 349 | 334 | 308 | 281 | 266 | 256 | 235 | 218 | 200 | 186 |
| Cybertrust | 2.77 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 80 | 129 | 156 |
| DigiCert Inc | 2.59 | 2 | 16 | 36 | 37 | 37 | 38 | 40 | 53 | 96 | 101 | 98 | 113 | 130 | 131 | 146 |
| Comodo CA Limited | 1.76 | 0 | 0 | 0 | 1 | 1 | 2 | 5 | 5 | 14 | 18 | 21 | 33 | 51 | 78 | 99 |
| AddTrust AB | 1.33 | 0 | 45 | 111 | 105 | 102 | 98 | 90 | 79 | 98 | 98 | 100 | 98 | 91 | 81 | 75 |
| Thawte Consulting (Pty) Ltd. | 1.15 | 17 | 53 | 58 | 60 | 58 | 56 | 56 | 58 | 60 | 60 | 60 | 61 | 62 | 63 | 65 |
| AddTrust Sweden AB | 1.08 | 0 | 8 | 35 | 34 | 37 | 38 | 40 | 37 | 52 | 51 | 53 | 53 | 58 | 56 | 61 |
| StartCom Ltd. | 0.92 | 0 | 22 | 45 | 47 | 42 | 50 | 52 | 50 | 51 | 50 | 48 | 53 | 51 | 49 | 52 |
| Entrust.net | 0.60 | 15 | 17 | 18 | 19 | 20 | 21 | 22 | 25 | 31 | 35 | 35 | 35 | 35 | 35 | 34 |
| Network Solutions L.L.C. | 0.50 | 0 | 2 | 9 | 10 | 13 | 13 | 13 | 13 | 19 | 20 | 22 | 24 | 24 | 26 | 28 |
| IPS Certification Authority s.l. | 0.48 | 14 | 18 | 23 | 23 | 23 | 23 | 23 | 25 | 26 | 23 | 26 | 26 | 26 | 25 | 27 |
| Akamai Technologies Inc | 0.28 | 0 | 0 | 3 | 6 | 6 | 7 | 12 | 13 | 15 | 15 | 15 | 15 | 15 | 15 | 16 |
| Sonera | 0.14 | 0 | 0 | 1 | 1 | 3 | 4 | 4 | 5 | 5 | 5 | 5 | 7 | 8 | 8 | 8 |
| GlobalSign nv-sa | 0.14 | 14 | 8 | 11 | 11 | 11 | 10 | 10 | 11 | 11 | 10 | 10 | 9 | 9 | 9 | 8 |
| thawte, Inc. | 0.09 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 4 | 5 |
| UTN - DATACorp SGC | 0.09 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 2 | 3 | 4 | 4 | 4 | 5 |
| XRamp Security Services Inc | 0.09 | 3 | 7 | 8 | 9 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 8 | 7 | 5 | 5 |
| The USERTRUST Network | 0.09 | 65 | 43 | 19 | 13 | 11 | 13 | 9 | 10 | 8 | 8 | 8 | 16 | 8 | 10 | 5 |
| GoDaddy.com, Inc. | 0.09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 2 | 2 | 4 | 5 | 5 | 5 |
| SecureTrust Corporation | 0.09 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 2 | 4 | 5 |
| TC TrustCenter for Security in Data Networks GmbH | 0.09 | 2 | 3 | 4 | 4 | 4 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 5 |
| ChainedSSL | 0.05 | 0 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Entrust, Inc. | 0.05 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
| GlobalSign | 0.04 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 |
| Trusted Secure Certificate Authority | 0.04 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Root CA | 0.02 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| TDC | 0.02 | 0 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 1 |
| Unizeto Sp. z o.o. | 0.02 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 |
| GlobalSign Inc | 0.02 | 0 | 4 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 |
| FreeSSL | 0.02 | 11 | 4 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Starfield Technologies, Inc. | 0.02 | 0 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 3 | 3 | 2 | 1 | 1 | 1 | 1 |
| CAcert Inc. | 0.02 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 |
| GeoTrust Inc | 0.02 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |
| Secure Business Services, Inc. | 0.00 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| PKI Partner AB | 0.00 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Akamai | 0.00 | 7 | 13 | 11 | 8 | 8 | 8 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| GTE Corporation | 0.00 | 10 | 1 | 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 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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