Canonical Tag

What is Canonical Tag?

A canonical tag (`rel="canonical"`) consolidates duplicate or near-duplicate URLs by pointing to the primary URL you want indexed and ranked.

Example: Product URLs with tracking parameters (`?color=blue&utm_source=email`) should canonicalize to the clean product URL to avoid splitting signals across duplicates.

Why Canonical Tag matters

Canonical tags matter because duplicate URLs split signals and waste crawl budget. Consolidating duplicates helps search engines attribute rankings and links to the URL you want in results.

How Canonical Tag works in digital marketing

Self-canonicalize important pages, align canonicals with internal links and sitemaps, and fix chains where A→B→C should point A and B directly to C.