User-agent: Mediapartners-Google*
Disallow: 

User-agent: Googlebot-Image
Disallow: 

User-agent: Googlebot
Disallow: 

# alexa.com
User-agent: ia_archiver
Disallow:

# archive.org
User-agent: archive.org_bot
Disallow:

User-agent: *
Disallow: /robots.txt
Disallow: /sitemap.txt