Keywords are a critical part of your SEO strategy. Along with relevant content and optimized website layout, ranking for the right keywords helps your site stand out from the crowd and get closer to the top of search engine results pages (SERPs). So it’s no surprise that a substantial amount of SEO tips focus on keywords – doing your research can help you select and rank the best-performing keywords in your market, which in turn increases market share. user and increases total sales. But how many keywords are enough? How many is too many? How do you know? And what happens if Google and other search engines determine that your site is “full” of keywords? In our beginner’s guide to keyword density, we’ll cover the basics, dive into why it’s important, and offer functional formulas and simple tools that can help you make sure your keyword strategies work as intended.
What is keyword density?
Keyword density, also called keyword frequency, describes the number of times a specific keyword appears on a web page compared to the total word count. It is often reported as a percentage or proportion; the higher the value, the more the selected keyword will appear on your page.
Why Keyword Density Matters
Keywords drive searches. When users search for products or services, they typically use a keyword that reflects their general intention and expect search engines to deliver relevant results. While tools like Google now take into account factors such as geographic area and page authority, defined in part by the number of visitors to your web page and in part by “dofollow” links from reputable sites that link to With your page, keywords are still a critical factor. factor in the success of the website. The warning? You can’t just “include” as many keywords as possible in your content and expect reliable results. During the wild west days of the first search engines, brands and SEO companies wrote low-value content and populated it with keywords and keyword tags, along with links to pages with similar content on the same site. Unsurprisingly, visitors were frustrated and search engine providers realized they needed a better approach. Now keyword stuffing has the opposite effect: search engines will penalize the ranking of pages from sites that still pick keyword stuff.
In numbers: the keyword density formula
How is keyword density calculated? The formula is simple: divide the number of times a keyword is used on your page by the total number of words on the page. Here’s a simple example: your page has 1000 words and your keyword is used 10 times. This gives: 10/1000 = .001 Multiply this by 100 to get a percentage, which in this case is 1%. There is also another formula that is sometimes used to evaluate the use of keywords: TF-IDF, which stands for “document frequency with reverse frequency of terms.” The idea here is to evaluate the frequency of a keyword on specific pages (TF) versus the number of times this word appears on multiple pages of your site (IDF). The result helps determine how relevant your keyword is to specific pages. While TF is straightforward, it’s easy to get distracted by the IDF. Here, the goal is to understand the rarity of your keyword in various documents. The IDF is measured in values between 0 and 1: the closer to 0, the more word appears on your pages. The closer to 1, the more it appears on a single page and not others. This is the “reverse” nature of the calculation: lower values mean more keyword usage. Consider this formula in practice. Applied to very common words like “the” or “but”, the TD-IDF score will approach zero. Applied to a specific keyword, the value should be much closer to 1; otherwise, you may need to rethink your keyword strategy.
Understanding Optimal Keyword Density
While there are no hard and fast rules for keyword density beyond the always-relevant advice of “no keywords,” many SEOs recommend using roughly one keyword for every 200 words of text. Your content may perform similarly with a little more or a little less, but general wisdom holds that Google and other search engines respond well to a keyword density of around 0.5%. It’s also worth remembering the value of keyword variants – words and phrases that are similar, but not identical, to your main keyword. Let’s say your website sells outdoor lighting solutions. While your most valuable keyword to the SERPs is “outdoor lighting,” including as many uses of this keyword on as many pages as possible will reduce rather than improve overall SEO. Instead, consider keyword variants; terms that are close to your main keyword but not an exact copy. In the case of “outdoor lighting”, variants such as “garden lighting”, “patio lighting”, “terrace lighting” or “landscape lighting” can help your page rank higher without conflicting with keyword stuffing rules. Not sure which variants make the most sense for your website? Use the “searches related to” section at the bottom of Google’s SERP for your main keyword. Here’s why: Google has spent a lot of time and effort understanding intent, so the “searches related to” section will show you terms similar to your main keyword.
Keyword density tools
While you can do the keyword density calculations yourself by calculating the total count of words and keywords on each page of your website, this can be time consuming and resource intensive quickly as your website expands and increases. page volume. Keyword density tools help streamline this process. Possible options include:
This free tool is browser-based – just enter your site URL or page text, then fill in the “I’m not a robot” captcha to perform a keyword density check. While this tool does not offer in-depth analysis of other options on the list, it is a great way to get an overview of your current keyword density.
Similar to the previous tool, SEOBook Keyword Density Analyzer is free, but requires an account to use. Along with basic keyword density reports, this tool also allows you to Google your target keyword, extract data from five of the top-ranked pages using the same keyword, and then analyze them to see how your keyword stacks up.
If you prefer a WordPress plugin for keyword density assessment, consider the WordPress SEO Post Optimizer. This tool costs $ 19, but it checks a number of SEO conditions, including keyword density, to help ensure your content can rank high in the SERPs.
Four. WPMUDEV SmartCrawl
Another WordPress plugin, WPMUDEV SmartCrawl is free for seven days and then costs $ 5 per month. Along with keyword density assessment, the tool includes automated SEO checks and reports, title and metadata evaluations along with detailed site crawls, scans and reports.
(Keywords) for the Kingdom
Do you want to improve your SERP position and increase the impact of the site? Start with strong keywords. The warning? Keyword balance is key to search success. By finding, and regularly assessing, the keyword density of specific pages and your site at scale, it is possible to increase relevant SEO impact and avoid the ranking traps of overly dense keyword distribution.