What’s the difference between a page with a PageRank score of 1 and a page with a PageRank score of 100?

PageRank, while no longer a publicly visible metric, fundamentally measures a page's importance and authority based on the quantity and quality of links pointing to it. A higher PageRank score (like 100) indicates that a page receives more link equity, including from internal links, making it more authoritative within the site's structure. This authority helps the page rank better. Optimized copy and images (first option) contribute to SEO but aren't directly measured by PageRank. Eligibility for more keywords (second option) is a result of good SEO, not a direct PageRank measurement. While external links are crucial for PageRank, the question specifically asks about the difference in relation to internal linking, which is a key component of a page's overall authority. A page with a higher PageRank will generally rank better, not worse (fifth option). PageRank is directly influenced by internal links, making the last option incorrect.