I recently took on a new client who has a PR 6, despite just one backlink, from his own site (a PR 5 duplicate domain that I eliminated when I took over his SEO). How does a site get a PR6 with just one backlink from a PR 5 site? The URL is www.swirled-ice.com
My concern is, I don't want to get in bed with this client, if the PR 6 was obtained in an unethical scheme. I can see nothing (other than the PR 5 duplicate domain which I eliminated) that appears to violate the rules, just a simple site with a Page Rank that does not correspond to backlinks.
Does anyone have any idea how this could happen?