Canonical Signals Need a Single Story
Diagnose canonical conflicts by tracing duplicate URL causes instead of patching symptoms.
Canonicalization is a signal alignment problem. Do not patch before tracing A duplicate cluster usually has a cause: parameters, printer pages, inconsistent trailing slashes, protocol variants, faceted filters, CMS aliases, or product variants. Adding a canonical tag without tracing the cause can leave the crawl path and sitemap still promoting the wrong URL. The preferred URL needs reinforcement Google can use several canonical signals. The strongest practical setup is boring: clean internal links, canonical URLs in sitemaps, permanent redirects for replaced URLs, and rel canonical on pages that genuinely duplicate or closely overlap. 5 Whys makes the fix durable Ask…
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