i am new and i am pretty sure i am wrong but i think it means to put ads to increase ctr or revenue/ correct me if i am wrong thanks
That could be a good answer, but I was thinking about the actual content. i mean, what exactly should one do to be sure he/she made a good "AdSense optimization"?
I would say writing content that is relevant to the types of ads you want to target and keeping it natural, placement of ads in a compliant manner but strategically placed to get the most ctr. Blending of the ads if it makes sense to on your particular site.
Before writing a post do some research on that keyword and use similar one in you post so adsense bots find it easy to display niche related adds .
Name of the domain is something with you should start. If your domain name is car-insurance.something you will see that adsense is in start optimised for car insurance. Next thing is h1 and h2 and offcourse keywords on page. If you have content for car insurance but adsense adds shows adds with mp3 links - this is not good optimised. I hope your question was on this.