| W3C-checklink/2.90 libwww-perl/5.64 |
| W3C-checklink/3.6.2.3 libwww-perl/5.64 |
| W3C-checklink/4.2 [4.20] libwww-perl/5.803 |
| W3C-checklink/4.2.1 [4.21] libwww-perl/5.803 |
| W3C-checklink/4.3 [4.42] libwww-perl/5.805 |
| W3C-checklink/4.3 [4.42] libwww-perl/5.808 |
| W3C-checklink/4.3 [4.42] libwww-perl/5.820 |
| W3C-checklink/4.5 [4.154] libwww-perl/5.823 |
| W3C-checklink/4.5 [4.160] libwww-perl/5.823 |
| W3C-checklink/4.81 libwww-perl/6.04 |
| W3C-checklink/5.0.0 |
| W3C-checklink/5.0.0 libwww-perl/6.36 |
| W3C-checklink/4.81 libwww-perl/6.15 |
| W3C-checklink/4.0 [4.4] libwww-perl/5.803 |
| W3C-checklink/4.81 libwww-perl/5.836 |