Referral spam. Pretty common nowadays. Plenty of articles talking about it and showing how to filter it. https://moz.com/blog/how-to-stop-spam-bots-from-ruinin

Referral spam. Pretty common nowadays. Plenty of articles talking about it and showing how to filter it. https://moz.com/blog/how-to-stop-spam-bots-from-ruining-your-analytics-referral-data https://moz.com/blog/how-to-stop-spam-bots-from-ruining-your...