When I just use Cloudflare DNS, do not use Cloudflare CDN, I see many features such as Firewall does not effective. Why?


#1

When I just use Cloudflare DNS, do not use Cloudflare CDN, I see many features such as Firewall and JavaScript captcha does not effective. Why?


#2

I presume you mean setting the DNS records to :grey: rather than :orange:, this disables the firewall, JS Challenge, Captcha etc. as it is set to DNS only. To use the Cloudflare services, it will need to be set to :orange:.


#3

That is, if I just use DNS without Cloudflare CDN, do other features can not be used?


#4

If you disable Cloudflare services (:grey:) then no, they cannot be used.


#5

I have some questions. When I disabled the universal SSL, then I open it, does it use the original certificate or the reissued certificate? Then if I delete the domain from cloudflare and add it, will it use the original certificate or the reissued certificate? And, what is the “edge” in the cloudflare website?