Mixing SEO backlinks refers to using a diverse range of link-building strategies to improve a website's search engine ranking. Instead of relying on a single type of backlink, such as guest posts or directory links, mixing different sources, like social media, blog comments, forum posts, and press releases, creates a more natural backlink profile. Search engines prefer organic backlink patterns, which help avoid penalties for over-optimization. A varied backlink strategy enhances a site's authority, increases traffic, and builds a stronger online presence, ultimately contributing to better rankings in search engine results.