I have a website builder hosted on Azure. My users can access their website by typing mywebsite.com?site=userA. I am looking for a way to allow my users point their custom domains to mywebsite. so UserA.com would go to mywebsite?site=userA and UserB.com would go to mywebsite?site=userB.
Is it possible to do so in CloudFlare. That I add mywebsite to CloudFlare and have UserA and UserB’s website A record point to CloudFlare assign IP address for mywebsite.com. Or is there another way to accomplish it in Cloudflare system.
Also, does Cloudflare provide a universal SSL certificate for user websites pointing to it in this manner