Cloudflare

Pull the weeds out of your Cloudflare setup.

Putting a self-managed WordPress server behind Cloudflare: origin lockdown, DNS, caching, the WAF, Tunnels and the errors you hit along the way. Every guide shows the date we tested it.

Setup guide Tested 23 Oct 2026

Show real visitor IPs in nginx behind Cloudflare, and what the FastCGI cache should bypass

Add a set_real_ip_from line for each of Cloudflare's IP ranges (22 on 23 October 2026) plus real_ip_header CF-Connecting-IP, and nginx and WordPress s...

Published 23 Oct 2026

Setup guide Tested 23 Oct 2026

Make a DigitalOcean droplet accept web traffic only from Cloudflare, and fix Error 522

Use ufw to allow ports 80 and 443 only from Cloudflare's published IP ranges (22 of them on 23 October 2026), keep SSH open for yourself, and deny eve...

Published 23 Oct 2026