Canonical vs redirect: when to consolidate and when to move

Canonical tags and redirects can both reduce duplication, but they solve different problems. A redirect moves users and crawlers from one URL to another. A canonical tag keeps the page accessible while suggesting which version should be treated as the preferred one.

The practical decision comes down to whether the alternate URL should still exist. If the old or alternate page should no longer be used, a redirect is often cleaner. If multiple URLs still need to resolve but point to essentially the same content intent, a canonical may be the better fit.

The biggest mistakes happen when teams mix the two without a clear goal. Redirecting one version, canonicalizing another, and linking internally to a third version creates avoidable ambiguity. The cleaner approach is to pick the preferred URL pattern first and make every signal reinforce it.

Use this guide when you want a little more context before publishing, need a quick refresher on best practices, or want to avoid the mistakes that commonly lead to crawl or indexing issues later.