by Constantin Oesterling on WordPress.org
Optimize your content's SEO by highlighting important terms and analyzing their density in your WordPress posts and pages.

RDO sidebar in the Gutenberg editor
Relevant Density Optimizer (RDO) is a powerful SEO tool that helps you optimize the density of important keywords, entities, and phrases in your content. By analyzing and highlighting term usage directly in the Gutenberg editor, RDO provides real-time insights to improve your on-page SEO.
Relevant term density is an important aspect of on-page SEO. Too few mentions of key terms may result in poor rankings and indicate “fluff” which reduces overall text relevance.
Relevant Density Optimizer (RDO) does not collect any personal data from users or visitors. The plugin operates entirely within your WordPress installation and does not communicate with external services.
The terms you add and analyze with RDO are stored in your WordPress database as post meta data and are not shared with any third parties.