Onsite Optimization Question

Is it a good idea to do on site optimization before I build links/launched my site or should I do it later when the site is alreayd at least one month old?

Kinda afraid Google has algo to filter new sites that is highly optimized.

Thanks

Depends what type of onsite optimization you plan on doing. Generally meta/title tags/headings are ok and recommended. Cloaking is a big no-no unless you really know what you are doing.

Google will have a go at sites with high keyword density (suggested value is 3% - 5%).