Keyword Density Checker

Free Keyword Density Checker — Analyze Your Content

Keyword density analysis is a core on-page SEO task. Using a keyword too rarely means missing ranking signals; using it too often triggers Google's spam filters for keyword stuffing. This free Keyword Density Checker pastes in any text or URL and instantly shows you the frequency and density percentage for every word and phrase in your content.

Paste your content or enter a URL to analyze. The tool identifies the most frequent single words, two-word phrases, and three-word phrases, shows how many times each appears, and calculates the percentage of total words it represents. Use this data to tune your content for natural, balanced keyword coverage.

Modern SEO focuses on topical relevance over raw keyword frequency. A good keyword density analysis reveals not just over-used words but also missing related terms that would strengthen topical coverage.

How to Use Keyword Density Data

Find the focus keyword density. Check how often your primary keyword appears. A density below 0.5% may be too sparse. Above 3% risks looking unnatural.

Identify over-optimized words. Stop words aside, any content word appearing at very high frequency is a keyword stuffing risk. Vary your phrasing using synonyms and related terms.

Discover missing related terms. If your content is about "email marketing" but the analysis shows almost no related phrases like "open rate", "subject line", or "subscriber list", your topical coverage is thin.

Analyze competitor content. Run a competitor's top-ranking page through the checker to see how they balance keyword usage and which related terms they include.

Keyword Stuffing: What to Avoid

Google's Panda algorithm and subsequent updates specifically target low-quality, keyword-stuffed content. Signs of keyword stuffing include: the same phrase repeated in every paragraph, a keyword density far above 5%, unnatural sentence constructions that exist only to include a keyword, and keyword-heavy blocks with no informational value.

Write for humans first. Use your target keyword naturally in the title, first paragraph, one or two H2 headings, and organically throughout the body. Google's NLP systems understand synonyms and related concepts — you do not need to repeat the exact phrase constantly.

Related Tools

• Keyword Position Checker – See where your keywords rank on Google.
• Meta Tag Generator – Generate SEO meta tags with your focus keyword.
• Code to Text Ratio Checker – Check overall content density.

Frequently Asked Questions