CALCULATION
How this keyword density checker calculates percentages
Every table uses the same occurrence-based formula: exact term count divided by the total number of words, multiplied by 100. A phrase that appears 4 times in a 1,000-word page therefore has an occurrence density of 0.4% and a normalized rate of 4 per 1,000 words.
(exact occurrences ÷ total words) × 100(exact occurrences ÷ total words) × 1,000Some tools multiply a phrase count by the number of words inside that phrase. This checker does not. It reports how often the exact unigram, bigram, or trigram occurs, so values remain directly comparable across texts and the formula stays visible.
PHRASE ANALYSIS
Review one-word keywords, bigrams, and trigrams separately
Unigrams show individual vocabulary. Bigrams preserve two-word sequences such as “keyword density,” while trigrams expose more specific patterns such as “free SEO tool.” The analyzer builds phrases from consecutive words before applying the table filter, so removing stop-word noise never creates a phrase that did not exist in the source.
Tracked keywords
Check exact phrases you care about even when they are not among the most frequent rows.
Minimum frequency
Hide one-off terms while retaining the complete exported result.
Draft vs page
Save result A, analyze result B with identical settings, and review the largest percentage-point changes.
URL or pasted text
Fetch a public page or analyze a draft locally before it is published.
LIMITATIONS
Keyword density is diagnostic data, not an optimization target
A percentage can show what a page repeats, but it cannot judge search intent, factual usefulness, originality, readability, or semantic coverage. Google’s guidance emphasizes useful, naturally written content and identifies unnatural repetition intended to manipulate rankings as keyword stuffing.
Use density to investigate a page, compare versions, and find accidental repetition. Do not keep adding a phrase until it reaches a preset number.
For the full reasoning, examples, and editorial workflow, read Keyword density: formula and limitations. You can also review Google’s keyword-stuffing policy and SEO Starter Guide.