If you need a quick SEO analysis of your site, then Website Grader is a superb tool. Over on Digital Point forums, some people offer this kind of service for a donation where the URL that is analyzed simply gets fed into this site.

Simply enter your URL, and wait for the results which will be very helpful in getting your site on the right track at least.

You can also enter the URL of a competing site to see how you match up. You will get a full report on On-page SEO, Off-page SEO, how you rank on the blogosphere and a load of other stuff.

Try it! Just go to http://www.websitegrader.com and see how your site ranks.