the question here is How to know if a domain have fake PR? not How to know PR of domain? there is difference right?!! the same as above. when you type in google info:domain.com if domain is redirected to another domain then IT'S FAKE/FORGED DOMAIN
My preferred page rank checker is this http://www.highqualitybacklinks.com/backlink-checker/ Providing you with additional useful information.
One way is checking the info: as mentioned above to check for redirects, another way I do is to take a look at the backlinks its got. Both methods are covered in our tool as per my signature below.
just check backlink tool http://www.xenyo.com/seotools/backlinks.php - it's say: Unable to retrieve backlinks at this time, please try again later. Total Backlinks: 0 why is that?