Review
A canonical tag, often written as `rel=canonical`, is an HTML element used to indicate the primary or canonical version of a webpage to search engines. When multiple URLs contain identical or very similar content, search engines may struggle to determine which version to rank. Implementing canonical tags helps prevent duplicate content issues by telling search engines like Google which URL is the preferred one. This consolidation of signals from duplicate pages ensures that SEO efforts are concentrated on a single, authoritative URL, improving search engine optimization. Properly using this tag is crucial for website health and search ranking.