Keyphrase density is the number of times your focus keyphrase occurs in your copy, compared to the total text of that page. So if you have a text that is 100 words and 5 of those are your focus keyphrase, your keyphrase density is 5%. The keyphrase density check in Yoast SEO assesses whether you’ve used the word(s) from your focus keyphrase often enough in your copy. An example of the keyphrase density assessment feedback in Yoast SEOIn the free version of Yoast SEO for WordPress, you’ll get a green traffic light if your keyphrase density lies between 0.5 and 3%. If you don’t get feedback on your keyphrase density, there are a couple of things you should check:Did you enter your focus keyphrase in the focus keyphrase field?