Review
A canonical tag, often written as `rel=canonical`, is an HTML element that helps webmasters prevent duplicate content issues in search engine optimization (SEO). When multiple URLs serve identical or very similar content, search engines like Google may have difficulty deciding which version to index and rank. The canonical tag tells search engines which URL is the main, or canonical, version of a page. This signals that search engines should consolidate ranking signals, like backlinks, to the designated canonical URL, improving your website’s SEO performance and avoiding potential penalization for duplicate content. Correctly implementing canonical tags ensures that the preferred version of your content appears in search results.