User-agent: *
Disallow: /400.shtml
Disallow: /401.shtml
Disallow: /403.shtml
Disallow: /404.shtml
Disallow: /500.shtml
Disallow: /index.php
Disallow: /images
Disallow: /group1.php
Disallow: /group2.php
Disallow: /group3.php