What is canonical Tag ?

Hello friends,

I would like to know that What is canonical Tag ? tell me

A canonical tag specifies the source URL (or original content page) of a given page to a search engine such as Google. Canonical tags are used to declare a single page as its own source or for duplicate pages to reference their source / originating page. Search Engines use the canonical tag to combat duplicate content issues and assign search engine ranking value for that content to the page designated as the “source” URL.

The rel=canonical component, frequently called the "standard connection", is a HTML component that helps website admins anticipate copy content issues. It does this by indicating the "accepted URL", the "favored" form of a website page. Utilizing it well enhances a site's SEO.