User-agent: *
Disallow: /link.php
Disallow: /images/numcache/
Disallow: /artikel_backend/
Disallow: /cache/

User-agent: Mediapartners-Google*
Disallow:

User-agent: Googlebot
Disallow: /link.php
Disallow: /link.php?
Disallow: /images/numcache/
Disallow: /artikel_backend/
Disallow: /cache/