How it works
- Paste the URL of the page you want to analyze (for example
https://example.com/page). - The tool fetches the live page and extracts only the readable body text.
- It tokenizes the words and counts single words, two-word and three-word phrases.
- You get ranked frequency tables with counts and density percentages for each.
What it shows
- Single-word frequency — the most-used individual terms on the page.
- Two-word phrases — common bigrams that reveal the page's focus.
- Three-word phrases — longer trigrams that surface specific topics.
- Count per term — exactly how many times each word or phrase occurs.
- Density percentage — each term's share of the total word count.
- Total word count — the overall length of the readable content.
- Stuffing signals — terms that appear unnaturally often.
Common use cases
- Catching keyword stuffing — find terms repeated so often they risk a penalty.
- Checking topical focus — confirm the page emphasizes the right subject.
- Comparing with competitors — see which phrases ranking pages lean on.
- Editing thin content — spot where a target term barely appears.
Example
Run a blog post and you might see running shoes appearing 14 times at 2.1% density, while your intended phrase trail running shows up just twice — a clear sign to strengthen the secondary topic without over-using the primary one.
Frequently asked questions
Is the Keyword Density Checker free?
Yes — completely free, no signup and no limits. Analyze as many pages as you like with real, live data.
What is a good keyword density?
There's no magic number, but most natural pages keep a primary term well under 2–3%. Anything dramatically higher reads as stuffing. Aim for natural language and let the term appear where it fits — depth and relevance matter more than a target percentage.
How does this connect to on-page optimization?
Pair it with the On-Page SEO Checker (Keyword) to grade a page against one keyword, and the Heading Structure Analyzer to confirm structure. Learn how it all fits together in our on-page SEO guide.