Reported traffic dropped since Feb 8-9 in Google Analytics, but not Adsense and Quancast
I've noticed a sharp drop in reported traffic since February 8-9 on Google Analytics changing from about 28,000 pageviews to around 19,000 pageviews during week days, as shown in the screenshot below.
However, when I check the traffic in Adsense or Quancast, there has been no such drops in pageviews:
The discrepancy is such that I had 30,000 pageviews on February 9 according to Adsense, but only 17,000 with Google analytics, which should be the opposite due to ad blockers. Adsense and GA operate in different timezones for my website, but even if we take Feb 8 data it does not make sense.
I have not changed my website during Feb 8 - 9, am I the only one to have this issue?