Clever stuff that showing you heatmaps and where people are clicking / interacting
Quite pricey though, lowest I can see you can get it for is 39 euros a month for 100 sessions a day which wouldn't really work with most bloggers so then you look at the next one up which is 99 euros a month
Theres another one called Zigpoll which has a free plan. Again, I havent used it, just passing on a bit of info. Nor do I have any clue how the person on the POD forum uses it for her site https://www.zigpoll.com/pricing
There's a free version which will let you generate heat maps etc.
I use this tool for work all the time it's incredible - work out where people are clicking with heat maps, you can also take live video recordings. Really useful for finding problems with your design or if people are struggling to find the areas of your site you want them to go.