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    UTM Parameters

    UTM parameters track marketing attribution but can create multiple URLs for the same page. Use canonicals pointing to the clean URL.

    Definition

    UTM parameters (utm_source/utm_medium/utm_campaign, etc.) are used for analytics attribution. The SEO risk is multiple URLs representing the same content. Best practice is to keep self-canonicals, internal links, and sitemaps pointing to the clean URL without UTM parameters.

    Why it matters

    • Prevents UTM variants from being selected as the indexed canonical
    • Reduces duplication and crawl waste
    • Consolidates signals to the primary URL

    How to implement

    • Use self-referential canonicals pointing to the clean URL
    • Avoid UTM on internal links (use it for external campaigns)
    • Consider noindex for tracking variants if necessary

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