Personal Hunt - Your personal Product Hunt leaderboard
Dead Link Checker - Check for broken links on any website
Product Runt - A dynamic list of the bottom 100 projects on Product Hunt
BrokenLinkCheck - Free Broken Link Checker / Online Dead Link Checking Tool - find bad hyperlinks
Product Hunter - The latest from Product Hunt in every new Chrome tab
LinkChecker - LinkChecker is a free, GPL licensed website validator.