User-agent: naver 
Disallow: / 
User-agent: TurnitinBot
Disallow: /
User-Agent: Gigabot 
Disallow: /
User-agent: dotbot
Disallow: /

User-agent: *
Disallow: /gstats/
Disallow: /button/
Disallow: /osg/
Disallow: iatac.php
Disallow: iatao.php