What is the significance of rel="canonical" tag in Magento SEO?

@vinnie 

The rel="canonical" tag in Magento SEO is significant in avoiding duplicate content issues. It is a way to tell search engines that a particular page is a copy or a duplicate of another page on the website, and therefore should not be considered as original content.

For example, if a product is available in multiple categories, each category page may have the same product description and images. This can create duplicate content issues, which can negatively impact SEO efforts. By using the rel="canonical" tag, Magento can inform search engines which page is the original and should be considered for indexing and ranking.

Overall, using the rel="canonical" tag can help improve the website's SEO and avoid any penalties or negative impacts from duplicate content.