Guides
Each one is written to be finished, not skimmed. If a guide does not get you to the end, that is a problem with the guide.
DNS
How to add a CNAME record at your DNS host
What goes in the Type, Name and Value fields, why the same record looks different in every panel, and the two mistakes that quietly do nothing.
Your server
Origin exposed: how to confirm it and how to close it
The warning means one thing: your own server answered us directly. How to confirm that yourself, the three usual reasons, and what closing it takes.
Your server
How to lock your server to Cloudflare addresses only
Your server still answers anyone who knows its address. Here is how to accept Cloudflare and refuse the rest, without taking your own website offline.
Getting started
How to remove OneLineShield from your website
Leaving is the same one DNS record you changed to start, edited back. Here is the exact order, and the one thing to write down before you touch anything.
Updated August 12, 2026