Definition
A redirect chain is a sequence of two or more redirects between the URL a user or crawler requests and the final destination - for example URL A redirects to B, which redirects to C, which redirects to the live page D. Each hop adds a round trip that slows the page for users, consumes extra crawl budget, and risks losing query parameters or dropping the request entirely if a hop fails or a client stops following after a limit.
Chains accumulate over time as a site changes: an early redirect from an old URL to a new one, then another redesign adds a second redirect from that URL, then an HTTPS migration adds a third, then a trailing-slash normalisation adds a fourth. Each change was reasonable in isolation, but the layers were never flattened.
In context
For SEO, redirect chains dilute and delay the transfer of ranking signal, slow indexing of the final URL, and waste crawl budget on the intermediate hops. Search engines follow a limited number of hops before giving up, so a long enough chain can leave the destination effectively undiscovered from that entry point.
Users on slow connections feel each hop as added latency, which hurts Core Web Vitals and conversion.
The fix is to flatten chains so every source URL redirects in a single hop directly to the current live destination, and to update internal links and the sitemap to point at the final URL rather than at any redirecting URL. On a large affiliate site this is done by crawling the whole site, listing every redirecting URL and its full hop path, and rewriting the redirect rules so A → D directly, B → D directly, C → D directly.
It is unglamorous maintenance, but on a site that has been through several migrations it removes real latency and recovers crawl efficiency and signal that the chains were leaking.
Worked example
An affiliate's crawl finds that 900 old URLs reach their live pages through 3–4 hop chains accumulated over two redesigns and an HTTPS move. Flattening every chain to a single 301 and updating internal links cuts average redirect latency by 400ms and, over the following month, improves indexing of the destination pages.
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Frequently asked questions
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