That will stop the crawlers but you could still show up in the search results, because of other web pages. From GP:
> If other pages point to your page with descriptive text, Google could still index the URL without visiting the page
> If other pages point to your page with descriptive text, Google could still index the URL without visiting the page
Google crawlers IPs https://www.lifewire.com/what-is-the-ip-address-of-google-81...