Rather Than splitting the PageRank equally between all links je a page, some links are valued more than others. There’s speculation from patents that Google switched from a random surfer model (where a fatiguer may go to any link) to a reasonable surfer model (where some links are more likely https://thebookmarklist.com/story19289259/non-connu-d%C3%A9tails-propos-de-seo