User-agent: Black Hole 
Disallow: / 

User-agent: Titan 
Disallow: / 

User-agent: WebStripper 
Disallow: / 

User-agent: NetMechanic 
Disallow: / 

User-agent: CherryPicker 
Disallow: / 

User-agent: EmailCollector 
Disallow: / 

User-agent: EmailSiphon 
Disallow: / 

User-agent: WebBandit 
Disallow: / 

User-agent: EmailWolf 
Disallow: / 

User-agent: Crescent 
Disallow: / 

User-agent: Wget 
Disallow: / 

User-agent: SiteSnagger 
Disallow: /