User-agent: ia_archiver
Disallow: /

User-agent: baiduspider
Disallow: /

User-agent: baiduimagespider
Disallow: /

User-agent: NaverBot
Disallow: /

User-agent: Megalodon
Disallow: /

User-agent: Hatena Antenna
Disallow: /

User-agent: Hatena-Mobile-Gateway
Disallow: /

User-agent: *
Disallow: /*.jpg$
Disallow: /*.jpeg$
Disallow: /*.gif$
Disallow: /*.png$
Disallow: /*.css$
Disallow: /*.dat$
Disallow: /*.txt$
Disallow: /*.cgi$
Disallow: /*.pl$
Disallow: /*.csv$
Disallow: /*.log$
Disallow: /*.htm$