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What Is Keyword Density: Ratio, Tools, How To Optimize

15 phút
Written by
16 Apr 2023

What is Keyword Density in SEO? What is the best keyword density ratio? To better understand how to optimize Keyword Density in SEO, let us find out in the following article!

what is keyword density

1. What Is Keyword Density In SEO?

Keyword density in SEO is the number of occurrences of a keyword on a web page or in a piece of content as a percentage of total words.

If you are using a specific keyword as the focus of your article, then you are likely writing content that matches that term. In short, a general rule of thumb is that you should have a focus keyword that serves as the primary search term for your content.

To calculate how much keyword density is, divide the number of keywords on the page by the total number of words on the article and then multiply by 100.

Example: The target keyword in the article that appears ten times in a 1000-word blog post would have a keyword density of 1%. If the keyword appears 20 times, the keyword density is 2%.

You can use SEOQuake Extension to check keyword density
You can use SEOQuake Extension to check keyword density

2. Why Is Keyword Density Critical In SEO?

Keyword density plays an essential part in a website’s SEO strategy. When Google or a search engine crawls into the content, it usually will not read all the words on the page, but it will look for potential keywords that stand out. Those are words that are repeated many times in the article.

Most users search for any product or service, usually for a specific keyword, and Google will provide relevant results. So keyword density is one of the critical Onpage SEO factors we need to do well to help improve user experience.

3. What Keyword Density Ratio Is Good For SEO?

There is no such thing as a specific number of ideal keyword densities suitable for every website. Many people still mistakenly believe that repeating the appearance of the primary keyword many times will help the article to rank higher on the Google search results table.

The above thinking is entirely wrong because repeating the primary keyword too many times is considered spam or keyword stuffing and will be penalized by Google. According to the research of many experts, the minimum keyword density in SEO is 1%, and the maximum is 3%. This is considered the ideal range.

However, keyword density in SEO also depends on the article’s length and must combine target and LSI keywords. Especially when optimizing in SEO, it is necessary to give priority to users to avoid stuffing too many keywords.

4. Five Best Ways To Optimize Keyword Density In SEO

You can check keyword density for your website through tools like keyword density Checker Tool, keyword density Checker Tool–Small SEO tools or SEOQuake extension. Here are five ways to help optimize the best keyword density in SEO that you can refer to:

Use long-tail Keywords with significant search volume

Using keywords with many searches will support website SEO and improve ranking on Google’s search results page. According to statistics, Google will value content related to search more than keyword density.

Furthermore, at the same time, using long-tail keywords will reduce competition compared to other websites, help increase traffic and increase conversion rates many times better.

Insert long-tail Keywords into the article

Use Long-tail keyword in the SEO article
Use long-tail keyword in the SEO article

Long-tail keywords have low search volume but accurately represent the user’s intent when typing keywords. When you insert long-tail Keywords interspersed into the article’s primary content, it will help Google better understand the primary keyword’s meaning to give users relevant results.

Avoid keyword stuffing

Avoid stuffing too many keywords in the article
Avoid stuffing too many keywords in the article

Stuffing too many keywords into an article will make the reader uncomfortable and affect the user experience. The content of articles on the website provides information and shares knowledge about a product/service for readers to understand, not optimized for search engines.

Repeating duplicate keywords will reduce users’ Time On Site, increasing the Bounce Rate. The main keyword spam is a black hat SEO, negatively affecting the website.

Example of a paragraph that is being stuffed with too many keywords:

“Top 5 best SEO tools to support SEO and website, this is the best SEO tool in USA suitable for SEOer searching and optimizing keywords. Check out the best SEO tools today.”

→ This paragraph is crammed with too many keywords, “best SEO tool,” which affects the readers who will leave immediately and rate this article as boring, spammy, and worthless.

Keyword Relevancy

Insert long-tail keywords that balance keyword density
Insert long-tail keywords that balance keyword density

Google values ​​the relevance of words and phrases related to a topic. Related keywords are a semantic complement to the main keyword, helping search engines better understand, classify and rank web pages.

For example, if the main keyword is “sunscreen,” there will be some related keywords around the main keyword, such as “apply sunscreen properly,” “should use physical or chemical sunscreen,” “guidelines for using sunscreen,” “which sunscreen should I use when going to the beach.”

Provide valuable content

Instead of worrying about keyword density, you should prioritize providing valuable content to readers. According to search engine algorithms, providing helpful information to users will be much more critical than our optimization.

For example, suppose your article is written on a medical topic. In that case, the article’s content must provide accurate information, not be misleading medical knowledge, have specific evidence from a reputable doctor and evidence on TV, newspapers.


Through the above article, we have shared detailed information about keyword density in SEO and the best way to optimize. If you still need clarification about keyword density and how to calculate density, feel free to contact EverRanks agency immediately for the fastest advice and support.


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