title: How to Stop bad crawler from crawling
body: <p>So, I have an eshop (php), and noticed that some competitors are always changing their prices to be lower that mine. I think that they are crawling my website for prices. Is there any way to stop that? </p>
  
  <p>I think that one of the solutions would be to block crawlers IP, but I don't know which IP it is.</p>
  
  <p>Could I block it if there are too many request?</p>