Page Rules in CloudFlare to forward pages from non-www to www domain

If you are looking to forward non-www pages on your domain to www. Here is what you need to do.

1. Login to CloudFlare and go to 'Page Rules' section of your domain.
2. If the URL matches , in this field enter your domain information http://example.com/* This denotes all the pages under your domain example.com
3. Pick Setting as 'Forwarding URL'
4. In destination URL enter your URL Information with www , http://www.example.com/$1
5. Click Save & Deploy

Note: For this setting to work, Traffic of your non-www domain must pass through cloudflare. You can check this in your DNS settings. You should have a CNAME record for example.com with active cloud. Shown as below.