Keyword Density

Although some SEOs will talk about aiming for an exact proportion (e.g. the number of times your keyword appears divided by the total number of words on the page), it's a little too much work for something that will take care of itself as long as you know how to write well! Use your keyword frequently on your site, but not so much that it makes the page look weird or a sentence sound awkward. If you just use the keyword once at the top of the page and then reference the keyword as "it", for the rest of the article, you'll definitely be using it too little. If you want some numbers, you should use your keyword at least three times on the page. This does not include keyword variations.