When writing website content, SEO compliance is about more than placing the right keywords on the page often enough. A healthy keyword volume can help—and it certainly will not hurt—but there are other ways to improve your chances of ranking higher. In many cases, something as simple as where you place your keywords can help move a page from the second page of results to the first. Keep in mind that no one understands search algorithms like the people who create search engines, so it is always worth paying attention to guidance that comes from them.
One important factor is how you use keywords in your “title” section. If you are running a blog like this one, including your keyword in every title is not essential. In fact, for natural readability, it is probably better not to do it every time. Too much repetition can be distracting for readers, because after a while all they notice is the keyword. That said, using keywords in titles on a regular basis can pay off, since Google gives more weight to words in the title than to words in the body text.
Keyword placement in links can also help, and this is closely related. Most blogging platforms automatically turn post titles into links. Beyond that, instead of leaving a link in its “naked” form—for example, www.thisisalink.com/link—you should aim to create a titled hyperlink with anchor text that includes your keyword. This is also weighted more heavily than a keyword mentioned on its own.