I've just found the following message in my Adsense dashboard:
We have analysed some of the pages on your sites that serve the most ads, and have detected Page Speed problems that create a highly negative user experience for some users. Frequently viewed pages on your sites are not making full use of client-side caching. Learn how to fix this problem:
I've visited the help page provided and it might as well be Russian as far as I am concerned! I have no idea what to do next, and whether it is something that I can do myself or whether I need to outsource (and if so, where to find someone who can help me). My site runs on a dedicated server at Hostgator and I can find my way round WHM and Cpanel to an extent.
Can anyone point me in the right direction? Any help would be much appreciated. Traffic has dropped 45% year on year since Thursday (having crept back to near-normal after April Panda hit) and I'm wondering whether this is why.