If your website allows visitors to post content such as comments or reviews containing links, it is important to add the rel="ugc" attribute to those links. This HTML attribute signals to Google that the link is user-generated, meaning you do not vouch for the linked page. Using rel="ugc" helps prevent your site from passing SEO authority to potentially low-quality or spammy sites, which could harm your search rankings. Many content management systems and plugins, especially on WordPress, can automate adding this attribute to user-submitted links. Regularly audit your site’s outbound links to ensure user-generated links are correctly tagged, maintaining a clean and trustworthy backlink profile. [Semrush]