Lanky Hosting prefers to use CloudFlare for increased security for your website.
When you decide to host your WordPress blog with Lanky Hosting we will arrange all the DNS Records with CloudFlare and will then provide you with the Name Servers.
The only action you will need to take is to contact the company that you have purchased the Domain through and ask them to update the Domain Name Servers to the values that will be provided to you when you sign up.
If you have purchased your domain name through Lanky Hosting you won't need to worry about a thing.