The document discusses the critical roles of dofollow and nofollow backlinks in SEO, emphasizing how they differ in terms of SEO value and impact on website visibility. Dofollow backlinks enhance credibility and traffic due to their ability to pass SEO authority, while nofollow links help maintain site integrity and comply with search engine guidelines. A balanced approach that incorporates both types of backlinks, focused on quality and relevance, is essential for an effective SEO strategy.