Conversions

Lots of traffic is great but if people leave your site unhappy or confused or disappointed or not having done something you like your visitors to do then that's bad.

Conversions are a really good measure of site success. If your an eCommerce site Conversions are sales. However they can be other things as well. This includes, signing up to a newsletter, getting a phone call or email about work or just having people read your content. Whatever you want to call it, conversions are the reason you set up the website in the first place (I want a website to promote my shop, or to promote my theories, or make money etc). So make sure you measure them and they are the focus of your site. Success pages when a person signs up to a newsletter or buys a product are a great way to know your conversion rate or percentage. Pick a page (or 2) that you would ideally like all people to see and measure it. If its a theory or idea you're promoting make sure people have spent a long enough time on the page to read it.

Traffic is a means to an end dont just focus on traffic(via SEO'etc)