Keyword Density

Keyword Density Analysis — SEO Tool for Text Optimization

Keyword density is the percentage of how often a specific word or phrase appears in text relative to the total word count. One of the most important technical SEO factors. Our TextHelper AI analyzer instantly shows top words, bigrams (word pairs) and trigrams (word triples) with percentages — so you know if your text is optimized for target queries.

How to interpret density

• 0.5-1% — low density, keyword not emphasized enough
• 1-3% — optimal range for main keyword query
• 3-4% — borderline, beyond this is keyword stuffing
• 4%+ — keyword stuffing, Google may demote the page

Bigrams and trigrams — finding natural search queries

Bigrams are pairs of adjacent words ("online calculator", "password generator"). Trigrams are triples ("how to write"). Real search queries often consist of 2-3 words, so bigram/trigram analysis helps find natural phrases for optimization.

How to use the analyzer

1. Paste your text in the field
2. Get a list of most frequent words with percentages
3. Check the "Bigrams" section — target phrases are often visible there
4. If main keyword has less than 1% — add it a few more times naturally
5. If above 4% — rephrase using synonyms

Stop words

The analyzer automatically excludes stop words (function words like "and", "in", "on", "with", "to", "that", "as", etc.). This makes the analysis more accurate and shows only meaningful SEO-relevant words.

Frequently Asked Questions

Are my texts analyzed on the server?
No. Everything works locally in your browser — text is not sent to our servers.

What's the maximum text size?
Up to 25,000 characters — enough for long articles and parts of theses.

Can I analyze competitors' texts for competitive research?
Yes. Just paste the competitor's text and see what keywords they optimize for.

Is case sensitivity considered?
No. The analyzer converts everything to lowercase so "Word" and "word" count as one.