User-agent: Googlebot
Disallow: /?*

User-agent: Baiduspider
Disallow: /?*

User-agent: YandexBot
Disallow: /?*

User-agent: ichiro
Disallow:  /?*

User-agent: sogou spider
Disallow:  /?*

User-agent: Sosospider
Disallow: /?*

User-agent: YoudaoBot
Disallow: /?*

User-agent: YetiBot
Disallow: /?*

User-agent: bingbot
Crawl-delay: 2
Disallow: /?*

User-Agent: Yahoo! Slurp 
Crawl-delay: 2
Disallow: /?*

User-agent: rdfbot
Disallow: /?*

User-agent: Seznambot 
Request-rate: 1/2s
Disallow: /?*

User-agent: ia_archiver
Disallow: 

User-agent: Mediapartners-Google
Disallow: