How to Stop bad crawler from crawling

Question

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?

I think that one of the solutions would be to block crawlers IP, but I don't know which IP it is.

Could I block it if there are too many request?

Answer 1

考虑为您的网站启用reCAPTCHA，请参见例如https://www.google.com/recaptcha/intro/index.html