I have the same exact issue. The problem shows up on my GA, but the strange pages are completely missing from JetPack, so other than the one person who said he has them on JetPack, it looks to me like it’s GA specific.
@alin Marcu – I’ve followed your advice and applied the hostname filter. My question is, should I be only applying the “include only” filter? Or should I also be applying an exclude filter with the suspect IP address?
Also, from what I’m reading here, it sounds like the danger at this point is only inaccurate data, correct?
Thanks for the help!! I actually had been seeing the Semalt one for a while and had no clue what it was. But since it was just a referrer, it didn’t seem as bothersome. Only today did I first get the co.lumb one in my page views and it had nearly 40 visits. Finally that raised a red flag to even my inexperienced eyes.
