Siteprice.io is a Free website Traffic and Value Checker.

  based on;

• Estimated daily unique view(s)
• Appraisal daily pageview
• Estimated daily advertisement income 
• Alexa rank. 
• Domain Google Pagerank.
• Search Engines such as Google,Yahoo and Bing index status.
• Domain Age
• Social media visibility
• Backlink Count, ETC