ThaiProofAI
Content Optimization

Keyword Density Checker

Analyze the frequency of words and phrases on any webpage. Ensure your content is perfectly optimized without triggering Google's keyword stuffing penalties.

Analyze a Page

Enter the full URL of the article or page you want to analyze for keyword frequency.

What is Keyword Density?

Keyword density refers to the percentage of times a keyword or phrase appears on a webpage compared to the total number of words on the page. In the context of Search Engine Optimization (SEO), it is a metric used to determine whether a page is relevant to a specific search query.

What is the Ideal Keyword Density?

While Google does not have an official "ideal" percentage, most SEO experts agree that a keyword density of 1% to 2% is a safe and effective target. This means that for every 100 words, your main keyword should appear roughly 1 to 2 times. If a keyword's density exceeds 4-5%, you risk being penalized for keyword stuffing.

The Dangers of Keyword Stuffing

Keyword stuffing is a black-hat SEO tactic where a page is loaded with keywords in an attempt to manipulate a site's ranking in Google search results. Google's algorithms (especially the Helpful Content Update) are highly sophisticated and will heavily penalize or de-index pages that appear unnatural. Always write for humans first, and algorithms second. If your content feels forced, consider auditing your overall page health with our SEO Audit Tool.

Optimizing LSI Keywords (Phrases)

Instead of repeating the exact same word, use Latent Semantic Indexing (LSI) keywords. These are conceptually related terms that search engines use to deeply understand content. Our tool highlights "Top Phrases (2 Words)" so you can see if you are naturally using variations of your primary keyword. You can also use our Meta Tag Checker to ensure your primary keywords are safely included in your title and description without stuffing.