Paste a single address and the checker requests it from our Cloudflare edge with redirect following set to manual, so it can record every step instead of jumping straight to the end. For each hop it captures the HTTP status (301, 302, 303, 307 or 308), the Location header that points to the next address, and any change in protocol or host along the way. It keeps walking the chain until a non-redirect response arrives or it reaches its hop limit.
Because the trace is built from the responses received at request time, it mirrors what a browser or crawler would experience on that same request rather than a cached or historical version. A redirect rule added or removed minutes ago shows up immediately, which makes the tool handy right after you ship a change to your server config, CDN rules, or CMS.