User-agent: Googlebot
Disallow: /MessageBoard/
Disallow: /messageboard/
Disallow: /Messageboard/
Disallow: /*?action=SEARCH
Disallow: /SiteTrack.aspx
Disallow: /sitetrack.aspx
Disallow: /SearchResults.aspx
Disallow: /searchresults.aspx
Disallow: /Search.aspx
Disallow: /search.aspx
Disallow: /checkout.aspx

User-agent: Bingbot
Disallow: /MessageBoard/
Disallow: /messageboard/
Disallow: /Messageboard/
Disallow: /*?action=SEARCH
Disallow: /SiteTrack.aspx
Disallow: /sitetrack.aspx
Disallow: /SearchResults.aspx
Disallow: /searchresults.aspx
Disallow: /Search.aspx
Disallow: /search.aspx
Disallow: /checkout.aspx

User-agent: Twitterbot
Allow: /

User-agent: facebookexternalhit
Allow: /

User-agent: *
Disallow: /