If your host provides IPv6 support, you can use Cloudflare to enable it on all domains. When there are both IPv4 and IPv6 connections available, Cloudflare prefers the latter.

You can enable/disable Cloudflare IPv6 compatibility on your domain by following these steps.

Step 1: You can head on to <https://dash.cloudflare.com/login>.

Log into your Cloudflare account.

Step 2: In the Home section, click on the domain that you want to disable IPv6 Compatibility on

Step 3: Go and click on the Network section

Step 4: Scroll Up/down to see a session called  IPv6 Compatibility

click the ON/OFF button to turn the feature on or off.