User-Agent: *
Disallow: /secret/index.html
Allow: /index.html

User-Agent: Mediapartners-Google
Disallow: /secret/index.html
Allow: /index.html

User-Agent: Googlebot
Disallow: /secret/index.html
Allow: /index.html

User-Agent: Adsbot-Google
Disallow: /secret/index.html
Allow: /index.html

User-Agent: Googlebot-Image
Disallow: /secret/index.html
Allow: /index.html

User-Agent: Googlebot-Mobile
Disallow: /secret/index.html
Allow: /index.html