Over-optimization refers to doing extra and unwanted things to bring your website to the top of searches. Technically, it can range from stuffing keywords, over-stuffing (more than 3% of the similar keyword), catering to unnecessary or unrealistic details, using exact-match anchor text, to cannibalization. These cases define the over-optimization of content or webpages in SEO. If you want to Avoid SEO Over-Optimization, check out the complete blog.