User-agent: Yeti
Disallow: /

User-agent: Baiduspider+
Disallow: / 

User-agent: BaiduImagespider
Disallow: /

User-agent: Twiceler
Disallow: /

User-Agent: Shim-Crawler
Disallow: /

User-Agent: Steeler
Disallow: /

User-Agent: SafariBookmarkChecker
Disallow: /

User-Agent: BecomeBot
Disallow: /

User-Agent: NaverBot
Disallow: /