Just install the firefox plug in and type 'dofollow' then you will get all site which having dofollow tag
If there are more than one no follow links in the source code than how can be checked our post will get back link or not??????????????
just highlights the link, right click on it and then choose View Selection Source. And I'm using a firefox adons which is search status and once the page loads on the browser its automatically shows all the nofollow links.