Free Keyword Density Checker Online

Keyword density is the percentage of times a target keyword appears in content relative to total word count. It signals to search engines what topic a page covers. Modern SEO focuses on natural usage rather than hitting specific percentages — Google's algorithms understand topical relevance without counting exact keyword repetitions.

Most SEO professionals suggest keeping primary keyword density between 1% and 2% for natural-sounding content. Below 0.5% the keyword may not appear prominently enough. Above 3% risks appearing as keyword stuffing, which Google penalises with ranking demotions. Use our density bar to stay in the green zone.

An n-gram is a contiguous sequence of n words. A 1-gram (unigram) is a single word. A 2-gram (bigram) is a two-word phrase like 'keyword density'. A 3-gram (trigram) is three words like 'free seo tools'. Analysing bigrams and trigrams reveals repeated phrases that individual word analysis would miss.

The Flesch Reading Ease score (0–100) measures how easy a piece of text is to read. Scores above 60 are considered standard or easy. Scores below 30 are very difficult. For general web content, aim for 60–70. Blog posts and marketing copy perform best between 65–80. Academic or technical content can be lower.

Keyword stuffing is unnaturally repeating a target keyword to manipulate rankings. Signs include a density above 3%, forced keyword insertion that disrupts reading flow, and keywords in every sentence. Google penalises this. Write naturally and use semantic variations and related terms instead of repeating the exact keyword.