Guides

Plain-language guides to the Cloudflare settings people actually search for: the orange cloud, proxy status, SSL/TLS encryption modes, and caching.

中文指南

What Does the Orange Cloud Mean in Cloudflare?

Proxied vs DNS only, in plain terms: what the orange and grey cloud each change, which record types and ports qualify, and how to read the errors the toggle causes.

8 min read

Cloudflare Orange-to-Orange (O2O), Explained

Two Cloudflare zones, one request: how O2O routing works with Cloudflare for SaaS, which zone each setting applies in, and what breaks.

7 min read

Which Cloudflare SSL/TLS Encryption Mode Should You Use?

Off, Flexible, Full, Full (strict): what each does to the second hop, which error each one produces, and why Cloudflare may now pick for you.

8 min read

Why Is Cloudflare Not Caching My Site?

DYNAMIC, BYPASS and a MISS that never becomes a HIT are three different failures with three different fixes — read the header first.

8 min read

Why Isn’t My Cloudflare DNS Change Working Yet?

Nothing propagates — caches expire. Which of the four layers is holding your old answer, and why lowering the TTL cannot fix a cached NXDOMAIN.

8 min read

Why Isn’t My Cloudflare Cache Purge Working?

Instant Purge really is instant, so a stale file means the purge matched nothing — or the copy you are looking at was never Cloudflare’s to delete.

7 min read

What Is CNAME Flattening in Cloudflare?

Why a root domain cannot hold a real CNAME, what Cloudflare returns instead, and the three setups flattening quietly breaks.

8 min read

Why Am I Seeing Cloudflare Error 1000: DNS Points to Prohibited IP?

The proxy refuses to forward a request to itself. Which records, reverse proxies, and request headers trigger it — and how 1000 differs from 1002, 1003, and 1014.

8 min read