But use this service you have to add your domain to Cloudflare.
Interaction is simple at your dashboard’s top navigation bar there is a prominent button called ‘Add Site’, it transfers you to the next page where you can copy-paste your website’s URL.
If you are getting error like ‘Invalid Domain’ while adding your website to Cloudflare then use this trick to bypass this error.
IF you are copy-pasting URL with http suffix then you will get an error:
// You will get error http://yourdomain.com
Then you have to enter your domain without http or www, It should look like this:
// Success yourdomain.com
‘Invalid Domain’ error should be resolved by now.
Hope it helps.
Thanks & Regards