SEO-Tool 8211 Keyword Density Checker is a WordPress plugin designed to enhance content optimization by providing detailed statistics on keyword densities within posts and pages. This tool automatically calculates the density of single keywords and 2- or 3-word keyphrases as users write their content, updating the statistics at defined intervals. Notably, it does not insert any meta information into blog pages, making it a lightweight option for users focused solely on keyword analysis.

The plugin features language-specific stopword filtering, allowing users to exclude common words from density calculations, thereby providing more accurate results. It includes meta keyword suggestions based on the content, and users can customize the update intervals or deactivate phrase statistics as needed. With support for multiple languages and built-in security measures, this plugin is a robust solution for content creators aiming to optimize their SEO strategy effectively.