I get tons of questions about search engine optimization but this is one of the most popular. First of all - exactly what is keyword weighting - or keyword density as it is also called? Here's the simple Non-Techy explanation for calculating the keyword density of your pages. Every page has a total number of words. So, for example, let's say your web page has a word total of 250, not counting all the HTML code ( roughly 1/3 to 1/2 of your web page will be the code - so just deduct that number of words from the total ). Use a Word processing program to find out your total word count. Paste the HTML source code of the page into a blank document, then choose File> Properties >Statistics >Word Count ( your programs help file will give specific instructions for viewing page statistics ). Let's move on. If you are optimizing that page for a single keyword, you need to figure out how many times that particular word is repeated within that 250 word total. Manually scan the page and count every repetition of your keyword. Your Word program should also have an Edit and replace function. Paste in the code and then type in the keywords in both the edit box and the replace box. The program will replace each occurrence of the word with itself...and produce a total count for the number of repeats. Let's assume for this exercise that you have used that keyword 10 times on your page. To calculate the keyword density - take that figure and divide it by the total number of words on your page. So in this case 10 divided by 250 = .04 Keyword density is always referred to as a percentage of the total word count for the page. So now you need to multiply .04 by 100 to get the percentage figure. Your calculation would look like this; .04 x 100 = 4% The page has a keyword density of 4%. Example: If you use a keyword once out of a total of 100 words, your keyword density is 1%. For effective optimizing that will boost your pages into the Top 20 spots on the major search engines you are aiming for a keyword density of between 2% - 5%. If You use your Keyword 5 Times per 100 words,You will have the Best Keyword Density.Your Keyword Density will be 5%. Don't use your Keyword Anymore than 5 Times per 100 Words.If You do,the Search Engines will Penalize You for it. What you have just been shown is about as simple as it gets for working out the keyword density of a web page. To recap then the formula looks like this; 10 divided by 250 = .04 x 100 = 4% -or- keyword count divided by total word count x 100 = keyword density in % To save time, don't stress too much over exactly matching the density of your page to the Top listed pages on the search engines. Algorithms fluctuate constantly at the major search engines so it is much simpler to optimize a few pages for different weighting or densities. A few pages at 2%, 3%, 4%, and 5% keyword density will mean at least one of your pages should rank well on a major search engine. Note - Keyword density can vary when analyzing a page for various search engines. Different search engines may use different stop words or stemming techniques, resulting in a word being counted by one engine and not counted by another. Aside from the problem of determining what constitutes a word, there is also the problem of determining which tags various search engines will support. The most basic scenario might have a search engine using only <body> text. More elaborate scenarios might have a search engine using <body> text, ALT tags, META tags, comment tags, and a handful of other tags. For example, if a keyword is used 5 times in page with 100 indexable text words, the page has a keyword density of 5%. Generally, keyword density should be high enough that a keyword is recognized as a main topic of a page and not an incidental, unimportant word. At the same time, keyword density should not be too high, as some search engines may penalize a page for keyword stuffing. Can a percentage of, say, 5%, help you boost your search engine ranking? It is highly debatable. Of course your keywords and key expressions should appear on the web page being SEO?d, but just the density of your keywords cannot improve your rankings ? many factors play a part in getting you a good ranking, and keywords are just a part of those factors. With more and more search engines putting greater stress on the contextual relevance, the use of keywords is going to be less important. This involves optimizing pages for what people want, not what they are looking for. For instance, right now if your search for ?web designing? you may get lots of results of online web designing tutorials. But there are many search engine users who search for web designing even if they are actually looking for a web designing company. Contextual relevance gives more importance to the actual message, not just the keywords. Having said that, a certain number of keywords in your web page copy still rule the roost. It?s not necessary that every single sentence on your web page should have your keywords. Just take care that your keywords key expressions appear twice or thrice on your web page, and also, your keywords should appear as anchor text your keywords should appear within all the important tags such <h1>, <strong>, and <li> Generally you put the main points as headlines or bulleted lists. So if your keywords appear within these tags, the search engine ranking algorithm thinks that your page has some relevant information regarding this particular keyword or key expression. ------------------------------------------------------------------------------ Keyword Density - Questions & Answers Keyword Density Basics Search engine optimization involves many individual tasks that all combine to form one strong strategy for optimizing your web site. If you?re going to do your own search engine optimization or hire a professional firm, you?ll need to learn about keywords and why they are so important for optimizing your web site. Learning about what keywords are, how many times to use them, and where to position them on each page of content will help you to realize better SEO results. What are keywords? Keywords are the words and phrases that people use to search for information via the many search engines that are available. If you want to look for information on troubleshooting your computer, you might type in ?computer repair? or ?troubleshooting Windows 98.? These phrases help the search engines find the most relevant results for your search. How do I find keywords to use on my web site? Keyword research is one of the most important aspects of search engine optimization. Before you begin your formal research, talk to family members and friends to find out the terms they would use to search for the products and services you sell. Compile a preliminary list of keywords and then start your research by using a keyword research program. Many of these programs offer features that will show you how many people search for particular terms, how competitive each keyword is, and alternate keywords based on your original input. Single words are almost impossible to use for optimization, so find specific phrases that describe your products and services. What do I do with the keywords once a list has been developed? Once you have come up with a list of keywords you want to use in your site optimization, you?ll need to actually implement them on to your site. Keywords can be included in page titles, page descriptions, alt-image tags, and web content. The most important thing to remember is that you should not cram your keywords into every single page on your web site. You should carefully place keywords and adhere to the principles of keyword density. What is keyword density? Keyword density refers to how many times your keywords appear in your text as compared to the total number of words on each page. Keyword density is expressed as a percentage. If you use a keyword once out of a total of 100 words, your keyword density is 1%. Where should I use keywords within my text for the best results? Using keywords in the headings on each page of your site is a good start. These bigger headings and specific keywords let people know what your web site is about. Using keywords in the beginning of a page and at the beginning of each paragraph is also a good way to improve your search engine rankings. You may not have thought of using words for links before, but this is a good way to improve your site?s ranking. Instead of having links to other pages in your site that show the page address, use keyword text to give the links an edge that will help improve your page rankings?