| W3C_Validator/1.3 |
| W3C_Validator/1.3 libwww-perl/6.68 |
| W3C_Validator/1.432.2.10 |
| W3C_Validator/1.432.2.19 |
| W3C_Validator/1.432.2.22 |
| W3C_Validator/1.432.2.5 |
| W3C_Validator/1.555 |
| W3C_Validator/1.575 |
| W3C_Validator/1.591 |
| W3C_Validator/1.606 |
| W3C_Validator_Suite (http://validator.w3.org/services) |
| Validator.nu/3 |
| Validator.nu/LV https://validator.w3.org/services |
| W3C_Validator/1.305.2.12 libwww-perl/5.64(Linux LLC |
| W3C_Validator/1.305.2.12 libwww-perl/5.64(Linux LLC 1.2) |
| W3C_Validator/1.305.2.12 libwww-perl/5.64 |
| W3C_Validator/1.654 |
| Validator.nu/LV |
| Validator.nu/LV http://validator.w3.org/services |
| W3C_Validator/1.3 http://validator.w3.org/services |