Internal links also aid the flow of PageRank around your site. That’s a big deal. Generally speaking, the more internal links a page has, the higher its PageRank. However, it’s not all about quantity; the quality of the link also plays a vital role.
At the time of writing, no other tool shows you internal link data like this WITHOUT running a manual crawl. This is totally unique to Ahrefs, and a big time saver.
No time to run a crawl? No problem, because Site Explorer now has internal link data!