Unnatural Link

Natural links are backlinks of websites that want to link to your website naturally because it finds your information relevant to theirs. Unnatural links are links pointing to your website for other means. For example, if the link to your website was purchased or linking to you from an advertisement, etc. Unnatural links hold lower value than natural links and you can even get penalized for them if it has malicious intent like if as manipulative or deceptive.