Web 2.0 backlinks are links that originate from user-generated content platforms that embody the principles of Web 2.0. These platforms include social networking sites, blogs, wikis, and other collaborative content-sharing websites. The value of Web 2.0 backlinks lies in their ability to boost a website's SEO by increasing its domain authority and visibility through high-quality, relevant content. By leveraging these backlinks, websites can enhance their search engine rankings and attract more organic traffic.