Does Nameserver change ot Cloudfare affect existing website?

Hello there, I’m planning to add my website to Cluodfare, however, my question is, when changing the nameservers on my domain to Cloudflare, it will be pointed to Cloudflare. so how the website file which is in public_html will work? how they gonna my site live after pointing the nameservers?

Welcome to the Cloudflare Community. :logodrop:

Your site will still be on your current hosting after you move your DNS. This page will give you a better understanding of how Cloudflare works.