User-agent: Googlebot
Allow: /
Disallow: /_internal/
Disallow: /_external/

User-agent: Bingbot
Allow: /
Disallow: /_internal/
Disallow: /_external/

User-agent: Twitterbot
Allow: /

User-agent: facebookexternalhit
Allow: /

User-agent: *
Allow: /
Disallow: /_internal/
Disallow: /_external/
Disallow: /user-agreement
Disallow: /legal/