I have been experiencing something very suspicious wish Google Webmaster Tool reporting. I will do my best to explain.
For the past several months starting in January this year the traffic reporting in GWT for my website started on a steady drop. Traffic and backlinks dropping together a little more with each passing day. Strange thing is though nothing has changed and the worpress stats had no drop. As far as the wordpress stats have gone, my site has had NO change in traffic since January, up or down. Just minor normal fluctuation. But GWT stats steady drop. This behavior continued month by month until present state of absolutely zero traffic and just (1) backlink. The suspicious part is the ONLY backlink GWT tools is showing is a shady website from Russia with a .ru domain. I can't remember if I can put URL's here or not so won't put the url here at present. Needless to say, it's a bad site.
As far as I can tell, all of my pages are still indexed in Google index. Tested this with manual searching and have stats from wordpress indicating all the search results from google. And in GWT it indicates all pages indexed. Although I have noticed over the past several months that GWT would fluctuate a great deal in regards to how many pages I had indexed. Some days would show 0 indexed and then a week late all indexed, then a week later 50% then back to 100% indexed. It's crazy! One week would indicate 0 mobile pages indexed, next week 100% at present it indicates 100% page indexed as well as mobile pages. But show 0 traffic. But Wordpress stats still indicating traffic to site is just fine.
Today I went ahead and disavowed that one bad link. But this problem has me extremely puzzled and exasperated!
Any enlightenment as to what might be going on would be greatly appreciated.