A good start: https://support.google.com/webmasters/answer/80553?hl=en https://support.google.com/webmasters/answer/80553?hl=en Then use robots.txt on any dyn

A good start: https://support.google.com/webmasters/answer/80553?hl=en https://support.google.com/webmasters/answer/80553?hl=en Then use robots.txt on any dynamic route like search. A solid site map could help too.