Keyword Density & Content Frequency Checker

Keyword density measures the proportional presence of a target word or phrase relative to the total document volume:

$$\text{Density (\%)} = \left( \frac{\text{Keyword Frequency} \times \text{Words in Keyword}}{\text{Total Word Count}} \right) \times 100$$

• Healthy Density Range: For primary target keywords, a density between 1.0% and 2.5% is considered optimal for Google and Bing algorithms.
• Keyword Stuffing Risks: Densities exceeding 3.5% to 4.0% trigger automated quality demotions under Google's Helpful Content System.

Modern search engines evaluate topic breadth using natural language understanding. Analyzing 2-word (bigram) and 3-word (trigram) phrases reveals secondary supporting concepts (e.g. 'content marketing strategy', 'search engine rankings'), ensuring comprehensive topical coverage without repetitive keyword usage.