Canonical URL

By · July 19, 2026

Canonical URL explained, a BeeRanked diagram
Contents
  1. Why it matters
  2. How it works
  3. Sources
  4. Related terms

A canonical URL is the version of a page you tell search engines to treat as the master copy when the same or very similar content is reachable at more than one address. You declare it with a rel="canonical" link in the page's head (Google Search Central).

Why it matters

The same content often lives at several URLs: with and without a trailing slash, with tracking parameters, HTTP and HTTPS, a print version. Left alone, that splits ranking signals across the duplicates and wastes crawl budget. A canonical tag consolidates them into one authoritative URL.

How it works

  • Point every duplicate's canonical at the single preferred URL.

  • The preferred page should be self-referencing (its canonical points to itself).

  • Canonical is a strong hint, not a command. Google can still pick a different canonical if your other signals conflict.

Sources

hreflang · Crawl budget · Structured data

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