Your hostname is: 38.107.179.237  
  Your IP address is: 38.107.179.237  
  Your browser is: CCBot/1.0 (+http://www.commoncrawl.org/bot.html)  
  Your local port: 51639  


These are just a few of the things that others can find about you when you visit their website. Forewarned is forearmed. Check out the technique of device fingerprinting, and look at these papers.