Canonical Tags are an HTML code fragment that specifies the primary form of the HTML code for identical, nearly identical, and related websites. In other words, you could include canonical tags to specify which edition is the key one and could therefore be indexed whether the information is the similar or equivalent under various URLs usable.
Importance of canonical tags for SEO
Google isn't interested in copying material. It leaves the decision more complicated for them:-
What edition of the index page (it's just indexing one!)
What edition of a website should the related queries be ranked.
If they can aggregate "link equity" on a single page or break it into many copies. For a digital marketing expert, it is easy to find out similar content.
Excessively repeated content could impact the "crawl plan," so Google could finish with waste time searching on many copies of the exact page rather than finding other essential information.
All such problems are resolved through canonical tags. These let Google know which edition of the page it will index and position as well as which "link equity" to incorporate. If a canonical URL is not mentioned, Google takes it into its own hands. Some of the best digital marketing agencies can help solve these problems
Why does it matter?
Duplicate content is a complex subject, but search engines may generate a variety of SEO issues if they crawl through several URLs with equal (or rather similar) content. Next, you might lose any of their exclusive content if search crawlers had to cross over too much similar details. Second, broad doublings can diminish your potential to rating. Finally, even though your content does not rate, the search engines can use the incorrect URL as the original URL for you.
The dilemma is compounded even further by new content management systems and complex, code-driven websites. Many Web paths (and URLs) can be added to the similar content simultaneously by many pages and by adding the quest, browsing URL, currency, variable etc. You can have millions but not know that you have double URLs on your blog.
What are the adequate methods?