Add Only Subdomain to Cloudflare

Hi,

I need to know how to route only my subdomain through Cloudflare, not the main domain only subdomain.
How do I do that?

I have attached my DNS screenshot below for reference. which settings do I change so that only my subdomain will use Cloudflare not the main domain and also I want to know my emails will not stop working when I use Cloudflare.

Thanks

Anything set to :orange: goes through Cloudflare. Click on the :orange: to edit it for :grey: if you don’t want it to go through Cloudflare. As for email, here’s a tutorial: