Content matters, not only from an end user perspective, but also from a search engine perspective. The words used on a webpage, including what type (keywords or stop words), how they are used (alone or within phrases) and where they are used (link text or non-link body text), can all influence the value of the page in search. Keyword Density is the percentage of occurrence of your keywords to the text in the rest of your webpage.
It is important for your main keywords to have the correct keyword density to rank well in Search Engines. This Keyword Density Checker Tool help the webmasters analyse the keyword density of their webpages as it display of the most important keywords from your site. This is a very simple tool to use. Enter the Webpage URL, Press ‘Check’ button, and the keyword density check will be done automatically.