6.5 is huge compared to what I normally get, should I be worried, how can I even contact the adsense team to request them to review my stats today.
I use same account for 5 websites, there is a couple of directories, gaming site, so different topics. CTR usually between 1 and 3 % although yesterday showed an increase as well yesterday was 4.
Dont worry about 6.5%...seriously. Fluctuations happen. Google knows this. If you went from 3% to 33%, then you might be concerned. Your site just might be showing more relevant ads today, which would boost your CTR. I'd bet it's back down to normal by tomorrow. If not, enjoy your additional revenue and try to figure out what's causing it.
And if you're still getting that % and find out what caused the increase then share the tactic with us
ok guys, i have been watching and i'm pretty sure its invalid clicks, someones messing with my websites!