Canonical Tags Explained: How to Avoid Duplicate Content Penalties
When the exact same page is accessible via multiple URLs (HTTP vs HTTPS, with trailing slash vs without, or with UTM tracking tags), canonical tags instruct Google which URL is the authoritative master.
1. The Syntax
<link rel="canonical" href="https://www.meradomain.com/blog/example-post" />
2. Self-Referencing Canonicals Are Mandatory
Every single page on your website should include a self-referencing canonical tag pointing to its own clean, canonical URL. This shields your site if scrapers copy your HTML or ad networks append tracking query parameters.
Kapil Wadhwa
AuthorLead Market Research & Brand Intelligence Strategist
Specializing in commercial market research, consumer brand perception, digital intelligence, and enterprise competitive positioning.
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