🔍 Keyword Density & Frequency Checker

A keyword density checker for 1-, 2- and 3-word phrases that shows what a page is actually about. No search engine publishes a density target.

Free No Signup Required Browser-Based

Top Keyword Density Analysis

Analyzed 103 words (68 unique 1-word phrases)
Keyword / PhraseOccurrencesDensity PercentageSEO Health
search13x12.62%⚠️ Potential Stuffing (>5%)
traffic5x4.85%🟢 Optimal Focus (1%–4%)
engines5x4.85%🟢 Optimal Focus (1%–4%)
the4x3.88%🟢 Optimal Focus (1%–4%)
seo3x2.91%🟢 Optimal Focus (1%–4%)
of3x2.91%🟢 Optimal Focus (1%–4%)
and3x2.91%🟢 Optimal Focus (1%–4%)
or3x2.91%🟢 Optimal Focus (1%–4%)
engine2x1.94%🟢 Optimal Focus (1%–4%)
website2x1.94%🟢 Optimal Focus (1%–4%)
from2x1.94%🟢 Optimal Focus (1%–4%)
unpaid2x1.94%🟢 Optimal Focus (1%–4%)
optimization1x0.97%Low Density
is1x0.97%Low Density
process1x0.97%Low Density

What Keyword Density & Frequency Checker Does

Keyword density is the share of a page’s words that are a given term, and the most useful thing to know about it is that no search engine publishes a target for it. There is no threshold to hit. Google has said for many years that repeating a phrase to reach a percentage does not help rankings, and the practice it does act on — stuffing — is defined by the reading experience rather than by a number.

So what is the tool for? Two things it genuinely does well. It shows what a page is actually about, which is often not what its author intended: run a draft through it and the terms at the top are the ones the page emphasizes, and a mismatch with the intended topic is a real finding. And it catches accidental repetition, the phrase used eleven times in nine hundred words because a first draft never got a second pass.

Counting phrases matters more than counting single words. "Insurance" appearing forty times says little; "car insurance quote" appearing forty times in a thousand words says a great deal. That is why two- and three-word phrases are here alongside single terms.

Treat the output as a description of your draft, not a score to optimize. A page written naturally for a reader will usually show its main topic at the top of the list without anyone aiming for a figure.

How to Use Keyword Density & Frequency Checker

  1. Paste your article or webpage content into the text area
  2. Select 1-word, 2-word, or 3-word phrase analysis
  3. Review occurrence counts, density percentages, and SEO health indicators in the table

Formula Used by Keyword Density & Frequency Checker

Keyword density

density = (occurrences of the phrase ÷ total words) × 100

total words
all words in the text, including the phrase itself
phrase
for multi-word phrases, each overlapping position is one occurrence

Worked example

"car insurance" appears 12 times in a 900-word article.

  1. 12 ÷ 900 = 0.0133
  2. × 100 = 1.33%

Result: 1.33%. There is no rule saying that is right or wrong — the question is whether the article reads naturally, which no percentage can answer.

What the numbers can and cannot tell you

QuestionCan this answer it?
What is this page actually emphasizing?Yes — this is what it is good for
Have I repeated something without noticing?Yes
Does my draft match the topic I intended?Yes, by comparison
What density will rank?No. No such number exists
Is this page over-optimized?Only indirectly — read it aloud instead
Will adding the phrase twice more help?No

How to Read Your Result

The top phrases are the page’s real subject

If you wrote about mortgage rates and the list is led by "the", "your" and "home loan", the page is less specific than you think. That mismatch is worth acting on — not by inserting the target phrase, but by writing the sections that would naturally contain it.

Two- and three-word phrases carry the meaning

Single-word counts are dominated by function words and by whatever noun happens to recur. Phrase counts show the actual claims a page makes, and are far better at revealing accidental repetition of a whole construction.

There is no number to hit

Advice specifying 1%, or 2%, or "1 to 3%", is folklore. It comes from an era of much cruder ranking and persists because it is easy to repeat. Writing to a density target reliably produces worse prose, which is the one outcome that does affect how a page performs.

Limitations & Accuracy Notes

  • Counts are literal. Plurals, tenses and synonyms are separate entries, so "run", "runs" and "running" do not combine — which is usually what you want when auditing repetition.
  • It analyzes the text you paste, not a live page, so navigation, headings and alt text are excluded unless you include them.
  • Common function words are counted like any other, which is why the single-word list is rarely the interesting one.
  • It measures nothing about ranking. No search engine publishes a density target and none is implied here.
  • English word-splitting rules are assumed; languages without spaces between words will not tokenize correctly.

Frequently Asked Questions

What is the optimal keyword density for SEO content?
Most modern SEO guidelines recommend an organic keyword density of 1% to 2.5% for primary terms, ensuring natural readability without triggering keyword stuffing filters.
What are n-gram keyword phrases?
Unigrams are single words (e.g. "calculator"), bigrams are 2-word phrases (e.g. "online calculator"), and trigrams are 3-word phrases (e.g. "free online calculator").
What is a good keyword density?
There is no target, and any specific percentage you see quoted is folklore. Google does not use a density threshold, and writing toward one produces worse text that does not rank better. The metric is descriptive, not prescriptive.
Then what is this actually useful for?
Two narrow things: noticing that a draft never mentions a topic you meant to cover, and noticing that a phrase has been repeated so often it reads badly. Both are editorial observations rather than SEO adjustments.
Does repeating a keyword help ranking?
No, and past a point it hurts. Search engines match on meaning rather than exact repetition, and unnaturally repeated phrasing is a documented spam signal. Covering a subject thoroughly matters; saying the same phrase more times does not.
Should I count stop words?
Filtering out "the", "and", "of" and similar makes the output more informative, since otherwise they dominate every list. They carry no topical signal either way.
What about related terms rather than exact matches?
Those matter far more than exact repetition. A page about mortgages that naturally uses "interest rate", "amortization", "principal" and "lender" demonstrates topical coverage in a way that repeating "mortgage calculator" twenty times does not.
Is my content uploaded?
No. The analysis runs in your browser.

References & Further Reading

By OnlineToolHubs Team • September 2026