RankShifters
Free tool, no signup, no credit card

Keyword Density Checker

Free keyword density checker. Analyze any text or URL to see keyword frequency and density percentages and avoid keyword stuffing. Instant results, no signup.

Check how often your keywords appear in your content and at what density. Paste text or a URL and this free tool counts one-, two-, and three-word phrases, shows density percentages, and helps you optimize naturally without keyword stuffing.

Counts single words, two-word and three-word phrases in the visible copy, and grades your focus keyword usage.

How to use the Keyword Density Checker

  1. Paste your text or enter a URL.
  2. Run the check.
  3. Review the top keywords with counts and density percentages.
  4. Adjust content so key terms appear naturally.

What is keyword density and why it matters

Keyword density is the percentage of times a keyword appears relative to total word count. Natural usage reads well to readers and search engines alike, while a very low count can leave the topic under-explained. Checking density helps you strike a natural balance and cover related terms search engines expect.

What “good” density looks like

There is no target number, and any tool that gives you one is selling certainty it does not have. As a sanity range, a focus keyword appearing in roughly 0.5%–2.5% of words reads naturally in most copy. Below that, the page may not clearly signal its subject. Above about 3.5%, it usually reads badly, and badly written copy underperforms regardless of what any formula says.

Placement beats frequency

Where the term appears matters far more than how often. Aim for the title tag, the H1, the first hundred words, at least one subheading, the URL slug where sensible, and image alt text where it is genuinely descriptive. Hitting those once each is worth more than twenty repetitions in body copy.

Use the phrase lists for entity coverage

The two and three-word lists show which concepts the page actually covers. Compare them against the pages currently ranking for your term: if the top results all discuss subtopics that never appear in your list, that is your content gap, and it is usually a bigger problem than density.

Signs of over-optimisation

  • The same exact-match phrase repeated in several consecutive headings.
  • Awkward grammar caused by forcing a keyword into a sentence.
  • City or product name variants stacked in a list at the bottom of the page.
  • Density above 4% on a page under 500 words.

Each one is a quality signal worth tightening, and quality is what the algorithm is trying to approximate.

Write for the query, then check

The productive order is: understand the intent, write the best answer, then run this tool to confirm the page reads as being about the subject and is not stuffed. Using it the other way round, writing to hit a density figure, produces pages that rank worse and convert worse.

Related checks

Confirm the on-page fundamentals with the meta tag analyzer, and if the page is thin, plan a rewrite rather than adding keywords.

Key features

  • 1-, 2-, and 3-word phrase analysis
  • Density percentages
  • Tag-cloud view
  • URL or text input
  • Free, private

Frequently asked questions

What’s a good keyword density?

There’s no exact target; aim for natural usage, often around 1-2% for a primary term.

How much repetition is too much?

Write for the reader first: once a term is repeated more often than it reads naturally, rephrase with synonyms and related terms.

Does the tool store my content?

No, analysis runs privately and text is not saved.

Related free tools

Word Counter · Readability Checker · Keyword Grouping Tool. See all of our free SEO tools.

Want the links and rankings handled for you?

Our team runs the outreach, earns the placements and reports every live link. Explore our link building services or tell us your target pages for a plan.

Found problems you would rather not fix yourself?

Send us the scan output. We will tell you which issues actually affect rankings, and quote the work if you want it handled.