How To Banish Bad Bots From Your Site Analytics

You can do that by using them to identify bad bots, which, more and more, are executing JavaScript, inflating analytics numbers, expending your resources and scraping and duplicating content.The Incapsula 2014 bot traffic report looked at 20,000 websites (of all sizes) over a 90-day period and found that bots account for 56% of all website traffic; 29% were malicious in nature.
Additional insight showed the more you build your brand, the larger a target you become.
Percentage distribution of good and bad bot traffic

Source: How To Banish Bad Bots From Your Site Analytics