Have you checked your Adwords campaigns by device recently? If not you should definitely take a look because there is a huge amount of tablet traffic and no way to block it for desktop campaigns. You can set bid adjustments at -100% to block mobile traffic but Google have disabled this feature for tablets. This means you are stuck with a lot of tablet traffic, in fact a very disproportionate...
James Bachini is co-founder and CEO of JSEcoin Ltd, a blockchain startup working to utilize browser based mining to reduce the excessive power consumption of traditional cryptocurrencies.