Blog
Guides tell you how. These tell you why, so the how makes sense when something changes later.
Explainer
Why you do not need to change your nameservers
The usual way onto Cloudflare moves every DNS record you own, mail included. Here is what that instruction really asks for, and the narrower way in.
Explainer
What an exposed origin is, and why it matters
Putting your website behind Cloudflare does not stop anyone reaching your server directly. Here is why that happens, and how to tell if it applies to you.