User-agent: facebookexternalhit
Disallow: /enroll/
Disallow: /order/
Allow: /certificates/

User-agent: Twitterbot
Disallow: /enroll/
Disallow: /order/
Allow: /certificates/

User-agent: LinkedInBot
Disallow: /enroll/
Disallow: /order/
Allow: /certificates/

User-agent: *
Disallow: /enroll/
Disallow: /order/
Disallow: /certificates/