Some customers proxy their DNS traffic through Cloudflare's DNS system, like so:
If you'd like to do this, ensure you set SSL/TLS encryption mode to Full (strict). Otherwise, you'll see an "ERR_TOO_MANY_REDIRECTS" error in your browser when you pull up your website.
To set the correct SSL/TLS encryption mode from within Cloudflare, click SSL/TLS > Overview in the sidebar, like so:
Your setting is probably set to Flexible (as seen below). Choose Full (strict), then the blue confirm box on the window that appears.
Once you click "confirm" wait about 30 seconds, and your website will load correctly with DNS traffic proxied through Cloudflare.