User-agent: Titan 
Disallow: /

User-agent: EmailCollector 
Disallow: /

User-agent: EmailSiphon 
Disallow: /

User-agent: EmailWolf 
Disallow: /

User-agent: ExtractorPro 
Disallow: /

User-agent: Alexa 
Disallow: /

User-agent: *
Disallow: /_js/
Disallow: /_css/
Disallow: /_images/