User-agent: Googlebot
Allow: /$
Allow: /index.php*
Disallow: /

User-agent: Googlebot-Image
Disallow: /

User-agent: Googlebot-Video
Disallow: /

User-agent: Bingbot
Allow: /$
Allow: /index.php*
Disallow: /
Crawl-delay: 5

User-agent: BingPreview
Disallow: /

User-agent: *
Disallow: /