title: Cloudflare: how to set-up (DNS and name servers)
body: <p>First I thought that this topic was better suited for Server Fault, but after reading the <a href="https://serverfault.com/tour">FAQ</a> I think otherwise.</p>
  
  <p>So, I set up Cloudflare for my domain (I only want to use it as a free CDN), but the documentation of Cloudflare is hardly sufficient for a beginner as myself. The lack of clarity is even worse in my case, because my domain and my webspace are hosted at different companies.</p>
  
  <p>When you put your domain in the Cloudflare website, it checks the website and tells you to change the <em>name servers</em> to two servers of theirs. Problem 1:</p>
  
  <ul>
  <li>Should I change the name servers of my domain host, or the name servers of my webspace host? (The latter didn't seem possible, so I suppose the answer will be the former.)</li>
  </ul>
  
  <p>After that, Cloudflare gives a list of different domains/subdomains of your website and the DNS server and/or IP linked to it. But:</p>
  
  <ul>
  <li>When I go into the control panel of my domain host, most of these subdomains are also there - but with other IP addresses. Shouldn't they be the same? Should I change my host's IP addresses to the ones Cloudflare presents?</li>
  <li>Should I add all the subdomains that I can find on my subdomain's host to Cloudflare?</li>
  <li>Is it possible that I do not have to change any settings on my <em>webspace</em> hosting?</li>
  </ul>
  
  <p>Please do not close this for "what have you tried". I have tried a lot of things, with subsequent crashes. Different employers of my host tell me different things, and Cloudflare hasn't answered my ticket yet. I thought, since there is a tag "Cloudflare", that some of you would have any experience with it.</p>
  
  <p><em>Note to admin: maybe the tag "nameserver" and the tag "nameservers" should be merged.</em></p>