Seomoz Tools are all pay.Even they say some of them are free I always get: There are currently too many active reports running. Please try again in a few minutes. Thanks for your patience! So if you are lucky and get one run (your site never used or not used seomoz tool to much) you will get a old report and try refresh for new one get again the message above. So,it's time to remove links for free seo tools to their site.