User-agent: *
Disallow: /survey/

User-agent: Googlebot
# disallow all files ending with these extensions
Disallow: /survey/

User-agent: Baiduspider
# disallow all files ending with these extensions
Disallow: /survey/

# disallow all files with ? in url
Disallow: /*?*

# disable duggmirror
User-agent: duggmirror
Disallow: /