Nielsen is described as 'Whether you're eyeing markets in the next town or across continents, we understand the importance of knowing what consumers watch and buy. That's our passion and the very heart of our business' and is an app in the Web Browsers category. There are more than 10 alternatives to Nielsen for a variety of platforms, including Online / Web-based, iPhone, iPad, Linux and Mac. The best alternative is Alexa. It's not free, so if you're looking for a free alternative, you could try Site Rank Data or Quantcast. Other great apps like Nielsen are Website Informer (Free), ComScore Media Metrix (Free), SEO camel (Free) and Ego (Paid).
Free web traffic metrics, top sites lists, site demographics, hot urls, and more... Alexa is useful resource for people to discover information about websites. You can use Alexa to discover how popular a site is, to find new sites, to learn who owns a site and a lot more.
Current and historical website rank data and analysis. Explore top web sites by keyword, domain extension or ranking changes. Do competition or industry research to find potential Internet partners or adversaries.
Quantcast is a web site that is based on viewing the statistics of other Web sites. Quantcast Corporations prime focus is to analyze the Internets Web sites in order to obtain accurate usage statistics by surfers from the USA. Like Alexa, Quantcast rates web pages by ranks.
Check website worth and get various data using StatChest. Find out your website's alexa rank, Dmoz listing, server status, domain expiry and registration date and way more other data for free. You can know why your competitor has better ranking than your own website.