User-agent: msnbot
Crawl-Delay: 20
Disallow: /articles
Disallow: /contents
Disallow: /css
Disallow: /js
Disallow: /search

User-agent: *
Crawl-delay: 20
Disallow: /articles
Disallow: /contents
Disallow: /css
Disallow: /js
Disallow: /search