User-agent: MSIECrawler
Disallow: /

User-agent: WebCopier
Disallow: /

User-agent: NimbleCrawler 
Disallow: /

User-agent: Slurp
Crawl-delay: 120 
Disallow: /assets/
Disallow: /graphics/

User-agent: Googlebot
Disallow: /assets/
Disallow: /graphics/

User-agent: *
Disallow: /assets/
Disallow: /graphics/