Spam Bugs in analytics

Question

I am getting 100 sessions on /error page on my all of three website. As it is coming from "not set" so unable to check the path of that traffic.

Is there any spam or how can I add any kind of filter when I don't have idea where the sessions are coming.

Please help.

error in analytics

Answer 1

1. Do you have the bot filtering enabled in your view? We find that it is not perfect but it's a good start.
2. Perhaps you can look at these request and see there is a set pattern; we have seen spam traffic coming from OS = Linux when typically our site visitors are mostly windows and mac. We know those are spams for sure; these requests are from weird, probably automatically generated screen size. Check city / province / OS etc of these sessions to see if there is a set pattern.
3. Do you have a view specific for reporting? If not, it will be a good practice to create a filtered view so that you can apply these filtering logics as needed. The idea is to keep an unfiltered view for diagnosis, and a filtered view for analysis and reporting. In the new view, you can create exclude filters to block the patterns. Make sure your filter is specific enough so that it won't block more than it should.
4. Check if your site has any soft or hard redirect for those pages; it could be why the error page does not capture any additional information. (It happens a lot for 404 redirects)