Backlinks are especially valuable for SEO since they reflect a "vote of confidence" from one website to another.
In a word, backlinks to your website tell search engines that other people are interested in your material. Search engines may consider it important to contribute information to a webpage or website if several sites link to it, allowing them to surf the SERP. As a result, obtaining these backlinks can have a favorable impact on the site's ranking or exposure.
The full form of SEO is search engine optimization it helps in generate traffic to your website and rank your website on the top position in search result.So here are some of the benefits of addition of backlink in SEO are as follows:
1.Generate traffic to your website.
2.Create relationship between you and the brand.
3.Building your brand.
These are some additional benefits of backlink in SEO.