I came across a link to this website - Website Grader on the Etsy forums the other day and thought it was worth checking out. You simply put in your shop (or blog) name eg http://www.etsy.com/shop/AMIDesigns and within a couple of minutes it will give you your website grade.
My Etsy shop has a grade of 85, which means (apparantly) - A website grade of 85/100 for www.etsy.com/shop/AMIdesigns means that of the millions of websites that have previously been evaluated, our algorithm has calculated that this site scores higher than 85% of them in terms of its marketing effectiveness.
It will give you lots of other information as well, such as when google last did a crawl of your website, your MOZrank and metadata. Not so sure what things like MOZrank are, so any info is appreciated!!