Google Analytics has had a bots issue for some time, and there are various bots that end up causing some site owners to second guess their data. Bot traffic can inflate your traffic numbers, making many of your metrics meaningless if you don’t get them filtered out.
Some of these bots are easy to clean up. Almost two years ago, Google introduced a filter that can be applied to the views in an account to remove known bot traffic. If you haven’t checked that box, you should do it now — you can find it in your view settings, called “Bot Filtering”.
Read more “Google Analytics Bot Traffic – Identifying and Removing”