What is the best free tool to use to analyze a site. Check the sites if it has been bookmarked or not.
if you are talking about getting backlinks then you can get them at yahoo search engine using following: link:www.websitename.com
What king of site analyzer? hmm.. if you are referring for links, back link watch is a great tool for analyzing links plus the anchor text used.
Link Diagnosis is great for looking at your backlinks. Pagerank Central is good if you want a broader picture of your website.