What this tool checks
The checker requests your URL without auto-following redirects, records the status code, reads the Location header, and repeats — up to ten hops, the same limit Googlebot uses. You get the full chain as a list of URL + status pairs, plus verdicts: more than two redirects is flagged as a long chain, revisiting a URL is flagged as a loop, a plain-HTTP hop after an HTTPS one is flagged as a security downgrade, and 302/307 hops earn a note about temporary-vs-permanent semantics. An HTTP→HTTPS upgrade at the front of the chain is marked as expected and healthy.
Why redirect chains matter
Redirects accumulate silently. A site migrates to HTTPS (hop one), later moves to a new domain (hop two), then restructures its URLs (hop three) — and suddenly every old backlink drags visitors through three round-trips before content can even start loading. On mobile networks each hop typically costs 100-500 ms, which lands directly on your Largest Contentful Paint. Crawlers suffer too: deep chains consume crawl budget, and links that pass through several hops consolidate signals more slowly than links that resolve in one. The worst case, a loop, takes the page fully offline — browsers give up with ERR_TOO_MANY_REDIRECTS and crawlers drop the URL.
How to fix what the trace shows
Long chain: collapse it — make the first URL redirect directly to the final destination and update the intermediate rules to do the same. Then update your own internal links, sitemap and canonical tags to reference the final URL so most visitors never redirect at all. Loop: find the two rules bouncing between each other (server config vs CDN edge rules is the classic pairing) and make one of them the single source of truth. 302 on a permanent move: change it to a 301 (or 308 if the request method must be preserved) so search engines consolidate signals. HTTPS downgrade: hunt down the legacy rule that still targets http:// — commonly an old vanity-domain redirect — and point it at the HTTPS destination. After any fix, re-trace here to confirm the chain is one hop or none.