Quarkbase is an online website comparison and monitoring service where you can compare your favorite websites. You do not need to  register at quarkbase to get the required data for any website. You can find out how good a site is, get comprehensive website details, discover competitors and analyze them.

At quarkbase, you can find out how much traffic a website is getting and whether it is decreasing, increasing or static. It also tells you about the articles and pages that were popular on the social bookmarking or sharing sites such as Digg & Delicious. It gives you the google page rank, internet rank, countries in which the site is popular, unique visitors per month, key people on the website, similar sites & recent blog posts etc.

In short, Quarkbase gives you all the necessary information you need to analyse any kind of website and also to compare various websites. If you want to compare your website with other similar sites, then you should give quarkbase a visit.