What is Keyword Density?
Keyword density is a factor in Search Engine Optimization (SEO). Search Engine Optimization is nothing more than a group of tactics and strategies that people utilize after they make a website to increase their site and their content's ranking in the search engines. While search engines are not the only way to get good traffic, ranking well on the first page of Google for your niche is a great way to get tons of free traffic over the course of the life of your free websites. Competition for these coveted slots in the first page of search results is fierce, so it's important that you utilize every SEO tactic that you can.
When you work to rank well in the search engines, you are aiming to rank for what are called "keywords." A keyword is nothing more than the word or phrase that you input into the search engines when you are looking for information online. The search engines look for keywords when they examine your free website to determine what it's about. If you have a site about dog training, then there are a long range of keywords that you might want to rank for- pretty much anything that has to do with dog training will do. There are a number of good tools online that help you think up keywords to try and rank for, but Google's keyword tool is probably the best.
One of the main points of selecting keywords is to find keywords that have a good amount of searches every month, but which do not already have a lot of competition for them. Every keyword tool will be able to provide you with a listing of potential keywords to use and how many searches for those words on a monthly basis. Looking up competition involves doing a search for your desired keywords and checking the page rank for each of the listings that come up.
Primary and Secondary Keywords
When looking for keywords, it's important that you look for both primary and secondary keywords for your free website. Primary keywords are going to be the main keywords that you should target in your website's copy. It's best to choose only one or two primary keywords that you are going to be repeating often in your text. You then want to choose a larger set of secondary keywords that you will pepper throughout your writing. Your primary keywords should be the highest competition, most important words to rank for. Your secondary keywords should be less competitive words that still relate to your primary keywords. It can be a good idea to figure these out before you even open your website creator.
There are a couple reasons why you want to target both primary and secondary keywords. Primary keywords are going to bring in the most traffic for you, because the most people are searching for them on a monthly basis. You need a lot of instances of your primary keyword if you are going to rank for these words. Secondary keywords have fewer searches and less competition, which means that they are much easier to rank for and require fewer instances to succeed with.
Also, many people feel like that a combination of multiple keywords that relate to your niche work best for search engine rankings. After all, it seems unnatural that you could write an article that utilizes the keyword phrase "dog training" without also using other keywords related to the niche.
Many people go overboard when it comes to keyword density. Not only is it likely that over-using keywords in a single article in a totally unnatural manner is penalized by the search engines, but it also results in your free website being filled with unintelligible content. At the end of the day you should write for people first, and the search engines second. For an online article of standard length (400-700 words) you should incorporate a primary keyword between 3 and 4 times evenly placed throughout your writing, and as many secondary keywords as possible while still maintaining readability.