Keyword Density for Modern SEO
While search engines have become much smarter at understanding "entities" and "context," keyword density remains a useful metric for ensuring your content stays focused on its primary topic.
Best Practices
1. **Primary Keywords**: Should appear in the first 100 words and H1 tag.
2. **LSI Keywords**: Use synonyms and related terms to provide context.
3. **Readability First**: Never compromise the quality of your writing for a metric.