@simon I tried cURL and it fetched the 403 error page. The exact output here
Well, I am not using the configuration in any particular virtualhost. I have those lines written at the bottom of the httpd.conf file and I know that it is applied because if I comment the DenyAllButCloudflare and restart Apache, all access from any IP address will be restored and functional. If it helps, here is my httpd.conf for your review. I replaced couple things in the file with Xs for privacy purposes.