Pagination helps search engines understand there are multiple pages of content related to a topic. This allows search engines to better crawl and index all of the relevant content on a site. Each paginated page should have its own unique URL. Using URLs like example.com/page/2 instead of example.com/?page=2 allows each page to be crawled and indexed separately. Include rel="next" and rel="prev" links in the of paginated pages so search engines understand the relationship between pages.