All web pages can be broadly classified into two categories the pages that change often (dynamic pages) and the pages that remain unchanged for a long period of time (static pages). SEO Analysts have found that the dynamic pages rank higher in the search engine results. It is better to dynamically change your web content at frequent intervals.

Normally, it is better to concentrate on optimizing one or two keywords on a single page. If you try to optimize more keywords on a single page, it will lead to keyword dilution as you will be stuffing your page with many keywords making it uninteresting to the reader as well as lowering the overall ranking of the page.