I was searching for a free SEO web tool recently and stumbled across this site. I put this domain name in the search form  and it quickly pointed out a few necessary tweaks that I over looked in putting together my blog. You can never be a 100% sure that your site is SEO certified. This tool crawls your site like the Google bot and displays your meta data. From there, it will make suggestion on things you should fix or tips on how to enhance your site’s SEO performance.

http://www.spidertest.com/index.php