User-agent: Googlebot-Image
Disallow: /

# Allow Googlebot anywhere
User-agent: Googlebot
Disallow:
User-agent: twiceler
Disallow: /
User-agent: YodaoBot
Disallow: /

User-Agent: *
Crawl-Delay: 20

User-agent: *
Disallow: /*.jpg$

User-agent: *
Disallow: /*.png$