Let's if my site is about best widget and i keep my onsite keyword density is below 1.5% for any word. When i build backlinks, i may use anchors like "best blue widget", "best red widget", "top widget" and so on. So nearly every anchor includes the word "widget". does this result stuffing to get a penality and affect the ranking of "best widget"? i'm confused because when i use ahrefs to check my backlinks, my "Anchor Phrases" is below 10%, but my "Anchor Terms" is about 70% for a word. i'm not sure i should focus on the density of "Anchor Phrases" or "Anchor Terms" or both. Any advice? Thanks very much!