📊 Free SEO Tool

Keyword Density Checker

Paste your content and instantly see which keywords dominate, spot over-optimization, and get actionable density recommendations.

Content Input
Enter text to begin analysis
Keyword Cloud Top 60 keywords by frequency
Paste text above to generate keyword cloud
Document Stats
Total words
0 characters
Unique keywords
after filtering
Sentences
avg length
Read time
min @ 200 wpm
<0.5%
Too low
0.5–2%
Optimal
2–4%
High
>4%
Stuffing
Frequency Table
Enter text to see keyword frequencies

Auto-optimize keyword density in WordPress

RankAl SEO shows live keyword density in your Gutenberg editor and highlights over/under-optimized content as you write.

How to use keyword density

What is keyword density?

Keyword density is the percentage of times a keyword or phrase appears in your text relative to the total word count. A density of 1–2% is generally considered optimal for SEO without triggering over-optimization penalties.

Optimal range explained

Under 0.5% — the topic may not be prominent enough for search engines to recognize relevance. Over 4% — risks being flagged as keyword stuffing. The sweet spot is 1–2.5%, used naturally in context.

Phrases vs single words

Use the 2-word and 3-word phrase modes to spot multi-word keyword patterns. These are often more valuable for SEO than single keywords since they reflect how users actually search.