One of the most important factors when it comes to SEO is relevance. The search engines don’t only want to see that you’re using specific keywords but it also wants to see how relevant your content is when it comes to specific search queries.
In order to do this, search engines don’t only look at the text on your website itself. They also look at:
How your website is structured
What keywords are used within your URL
How your page is formatted
What keywords are in the headline that are also found within the content of that given page