Internal linking class 8 is not a recognized term in professional SEO. No major search engine documentation, industry framework, or agency standard defines internal links by numbered classes. If you encountered this phrase, it likely comes from one of three contexts. First, some educational systems use "class 8" to denote grade-level curriculum. If you saw this in a school assignment about computer science or digital literacy, it probably refers to basic website navigation concepts taught to 13-14 year olds, not advanced SEO strategy. Second, a few proprietary SEO tools create custom classification schemes for link types. Some platforms label links by equity flow potential, calling top-tier links "class 1" and low-value footer links "class 8" or similar. These are vendor-specific and not portable across tools or agencies. Third, you might be conflating internal linking with anchor text diversity tactics. SEO practitioners do categorize anchors into types like exact match, partial match, branded, naked URL, and generic, but we don't number them as classes. What actually matters for internal linking: link from high-authority pages to pages you want to rank, use descriptive anchor text that includes target keywords naturally, keep important pages within three clicks of the homepage, and avoid over-optimization that looks manipulative. At Ottawa SEO, we map internal link architecture by page tier (homepage, category, product/post) and ensure each tier passes equity downward strategically. If class 8 appeared in a tool you're using, check that tool's documentation for their specific definition. If it was in a school context, disregard it for professional SEO work. Focus instead on link placement, anchor relevance, and crawl depth. Those factors influence rankings; arbitrary class numbers do not.