User-agent:*
Disallow: /test/

User-Agent: Googlebot
Disallow: /ad/

User-agent: MSNBot
Disallow: /ad/

User-agent: Slurp
Disallow: /ad/

User-agent: ia_archiver
Disallow: /ad/

User-agent: Gigabot
Disallow: /ad/

User-agent: baiduspider
Disallow: /ad/

User-agent: Teoma
Disallow: /ad/

User-agent: Yandex
Disallow: /ad/