Exactly on April 1st my Adsense CPC rates dropped by 50%.
I have a 5 website and combined server about a 100k ad impressions per day. No changes have been made to any of the websites recently and the traffic quality has not changed.
CTR rates also remain the same.
Is anyone on here experiencing the same thing? or has experienced the something similar in the past?
I did a bit of googling and found quite a few people in previous years report similar issues on April 1st but I couldn't find a specific cause or a verdict if this drop was permanent or their rates bounced back. If anyone could shed some light of this I would be very grateful.