Importance of Keyword Density in SEO

In SEO the size of text, titles, heading and other elements of web pages like keyword density assumes great importance. Keyword density is defined as the ratio or percentage of keywords comprising the total number of words in a text. For site owners it is important to understand the keyword density of the entire page and its various segments such as title, first sentence, heading and sub-headings, etc. If the text comprises of 24 words where the keyword is mentioned five times the keyword percentage in the entire text comes to 20.8%. The site owner should assess the amount of text required on the pages and accordingly evaluate the best keyword density of a particular web page.

 

The reason behind the overwhelming importance of keyword density is that too small keyword density prevents search engines from giving priority to the website. Similarly, over stuffing the site with keywords may permit the search engine to visit the site but such sites are not considered trustworthy by search engines as the web page has an unnatural appearance. At the same time, search engines dislike any site that uses too much or too little text on the website. However, it has to be noted that there are no set rules regarding the length of the text and the keyword density. Some believe that a keyword density of 5% to 7% is the optimum but studies have revealed that for successful optimization of a website keyword density is conditional.

 

Many web owners create web content with high keyword density and then distribute the phrases in their text with a lot of navigation, ads and images resulting in the actual density being substantially reduced.  There are numerous tools for analyzing keyword density. One of the most used tools is SEO Quake. This tool evaluates keyword density, being a plug-in for Firefox and Internet Explorer, provides more details than mere specifics on keyword density. It is quick and simple to download and, since it is a browser plug-in, it reveals 1 2 3 and 4 keyword phrases along with their density. Similarly, Keyword Density Analyzer is a powerful tool which, like the previous tool, provides more information than keyword density. It shows the location of keywords.

 

This permits web owners to initiate immediate changes in their text to improve the search engine ranking.  In the event of keywords being multi-phrased, the tool breaks the phrase and informs web client about the specific density of each word. Some other keyword density tools are :

  • Keyword Density Analyzer Tool – SEO Book : This tool is free and generally picks those words that are ignored by most search engines. The tool also uses a default list as well as enables web owners to know about the length of a word and the number of times it should appear in the text for the website to be crawled by search engines.
  • Keyword Density – SEO Chat : Specifies the length of the keyword phrase which is most effective for the content. Only restriction being it is capable of analyzing up to 3 word phrases.
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