Editing your CloudFlare A Record points your base domain (e.g. yoursite.com) to your LaunchRock page.
Note: To increase reliability you should create four A records and point each one to a different LaunchRock IP address:
Congratulations! Your A record is now configured to point to LaunchRock.
Creating an A Record is optional for Hosted Landing Pages but creating a CNAME is not. Create a Cloudflare CNAME Record
Once you've modified your A records, it may take up to 72 hours for changes to update live.