Fundamentally, keyword density is the number of times a targeted keyword is used in the web page content. It's normally expressed as a percentage of all of the words on the page. Keyword density plays a major role in helping the search engines understand what the page is about, otherwise known as relevancy. Your site could be considered spam or artificial if a keyword phrase is used too often causing the search engines to not display it in search results. Many people utilize keyword density to help them with search engine optimization which is another subject for another day.
Here is how to calculate the keyword's density on a web page. Let’s say your content is an article which contains 100 words (do not include any html code), your target keyword appears in the article 5 times. Simply divide the number of times the keyword appears (5) by the total number of words (100) to get an answer of .05. This would translate into 5%. To find the percentage simply multiply our answer (.05) by 100 which equals 5 or 5 percent.
The general consensus of an acceptable optimum keyword density is between 3 and 5 percent, in order for the search engines to recognize the keyword and know what the page is about. If you ever exceed 5 percent, keep in mind your page may get de-indexed and considered a spam site.
Also remember, this applies to all keywords on all web pages. Always ensure that each page of your site and its keyword or keywords stay within the optimum 3-5% and you site should be okay.
Easy Way to Check Word Counts on a Web Page
Highlight all of the content text on your web page and copy it, then paste it into a word processor such as Open Office or Microsoft Word and then look for the total word count. If not, some word processor's have a word count function up in the menu's. Now that you have the total word count, you can use the "find" feature from the upper menu and enter your keyword to find. After it finds the first one use "find next" and just keep count of how many keywords it finds. Now that you have a keyword total, use the formulas above to figure out the density percentage.
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Posted under Site building.
This post was written by Robjohn on October 22, 2009
