Yes and no. Idk if they validate you own the domain, i think they just care that your nameservers point to theirs. I recently setup a couple sites in cloudflare

Yes and no. Idk if they validate you own the domain, i think they just care that your nameservers point to theirs. I recently setup a couple sites in cloudflare and they just asked to set 2 different nameservers on the domain registrar (not namecheap, but spaceship.com). See here: https://developers.cloudflare.com/dns/zone-setups/full-setup/setup/ https://developers.cloudflare.com/dns/zone-setups/full-setup... I had also created my "worker pages" app/project in cloudflare before updating my nameservers in spaceship. But i do have namecheap domains as well and used firebase hosting (google) and they DID ask to have certain TXT records to be added to namecheap and validated before provisioning my ssl cert. I'm assuming every provider is different. But yea i would just undo the CF nameserver until you're ready to go live