Ahrefs is known as the world's largest index of live backlinks. Their highly sophisticated website analysis toolset including Site Explorer and Backlink Checker, SEO Reports, Mentions Tracker, Batch Analysis and Domain Comparison provides SEOs and integrated marketing professionals with one of the most extensive and quickly updated databases of live backlinks available. Ahrefs history dates back to 2011 after one year of thorough preparation and data mining. Ahrefs has built their own crawler that indexes billions of pages daily.Their proprietary technology allows their index to update data every 15 minutes and to capture over 1.6 trillion unique external backlinks. Ahrefs's results also display social metrics including Shares, Likes, Tweets, and Google +1s next to each link. With their easy-to-use tool, easy-to-read data visualization, and digestible data exports in the most friendly formats ,the company's goal is to continue to be the cutting-edge website analysis toolset for both businesses and individuals to obtain the best link building, content marketing and online reputation management strategies by providing the most competitive intelligence data that is available on the Internet in the most timely fashion.