What Is Pagination in SEO?

Website pagination in SEO is a process or strategy when website/blog pages having similar content are organized into a sequential series. 
Pagination uses options like numbered buttons or links. That will help users move through a content archive. 
Best example of Website Pagination is blog archive pages. And other example is an ecommerce category pages.
Pagination uses numbered buttons. Users can click these buttons to browse all the articles. And in case of ecommerce site, they use numbered links and arrows.
Benefits of Pagination
Pagination helps in improving user experience, because it helps users to move through more amount of content efficiently. Also if pages are numbered, that helps users where they are in conent and how much content they have to navigate.

Through Pagination your pages may load faster if you only display a partial amount of content. By improving your page speed with pagination, you can increase your chance of ranking higher in the search results and allow users to keep cling on your website.
Internal Links
Pagination offers internal linking opportunities that help search engines like Google understand your site’s structure that will improve your website ranking.
Webite owners should set up pagination correctly to avoid risk of duplicate content. Which can reduce your SEO efforts.