Sometimes, may you have experienced, links get broken. or page is deleted, a sub directory forgotten, a site moved to a different domain. Most likely many of your blog posts contain links. It is almost inevitable that over time some of them will lead to a “404 Not Found” error page. To overcome at this problem, here is a WordPress plugin, which will check all broken links of your blog and notify you, to take appropriate action.

You can get Broken Link Checker form  here