Hosting, unpacked.

A practical guide to detecting which CDN sits in front of a website. We look at the DNS, HTTP header and TLS signals that reliably fingerprint Cloudflare, CloudFront, Fastly and Akamai. You will also learn why some providers are deliberately hard to identify, and how to read the output without jumping to false conclusions.

A hosting checker reads what a domain shows to the public internet, and a CDN like Cloudflare deliberately changes that picture. This guide explains why the visible IP is often the edge, not the real host, and which signals raise or lower confidence. It also covers where the honest answer is simply origin hosting unknown, and why bypassing a site's security to find the origin is the wrong move.