User-agent: *
Crawl-delay: 2
Request-rate: 5/1

User-agent: googlebot
User-agent: adsbot-google
User-agent: mediapartners-goole
Crawl-delay: 1
Request-rate: 10/1

User-agent: googlebot-image 
Disallow: *
Allow: /forums/
Allow: /wiki/
Allow: /*.gif
Allow: /*.png
Allow: /*.jpeg
Allow: /*.jpg
Allow: /*.ico
Allow: /*.jpg
Allow: /*.svg
Crawl-delay: 5
Request-rate: 1/5

User-agent: googlebot-mobile
Disallow: *
Allow: /index.wml
Crawl-delay: 1
Request-rate: 5/2