User-agent: Slurp
Crawl-delay: 30

User-agent: ia_archiver
Disallow: /

User-agent: Baiduspider
Disallow: /

User-agent: BaiduImagespider
Disallow: /

User-agent: yodaobot
Disallow: /

User-agent: Yeti
Disallow: /

User-agent: NaverBot
Disallow: /