No, for security reasons, CloudFlare does not proxy traffic to a wildcard sub-domain. You have to explicitly list the sub-domain as a CNAME in your DNS records to be able to activate CloudFlare.
Can I enable CloudFlare on a wildcard (*) sub-domain?
CloudFlare is a performance and security service that we provide to our customers. On average, a...What is the association between Lithium Hosting and CloudFlare?
CloudFlare is a third-party vendor that is offering CloudFlare to Lithium Hosting customers...How does CloudFlare's technology work?
CloudFlare works as a reverse proxy. What this means is that once your website is part of the...Where are CloudFlare's data centers located?
CloudFlare's network currently has 12 locations. San Jose (US), Los Angeles (US), Chicago (US),...What types of websites can use CloudFlare?
Almost all websites can use CloudFlare. CloudFlare works for both static and dynamic...