If you have a question related to optimizing titles, headers, keyword density and on-page SEO using A1 Keyword Research (http://www.microsystools.com/products/keyword-research/), please ask in the A1 Keyword Research help (http://webhelpforums.com/index.php?board=19.0) area :)
(http://www.microsystools.com/products/keyword-research/screenshots/w740-keyword-research-density-analysis.png)
Note: You can check top keywords for all pages in your website one single website scan (!)
General search engine optimization
Website Page Content Search Engine Optimization (http://www.microsystools.com/products/keyword-research/help/website-seo-page-content/) (i.e. keyword density, keyword prominence etc. explained)
Using A1 Keyword Research tool
Keyword Density Analyzer and Keyword Analysis Tutorial (http://www.microsystools.com/products/keyword-research/help/keyword-density-analyzer-tutorial/) (page and site-wide keyword analysis)
What is the ideal density? I hear so much conflicting information about this, but overall I hear about 2% is correct
You won't find a 100% correct answer.
Many people even believe some SEO factors may also depend on the search competition in the niche. )
1) Write good content first
2) Tweak keywords afterwards. (At least make sure titles and headers are spot on.)