Off-page SEO is a set of actions that are performed outside of your website to improve its status in Google, Bing, and other search engines. Creating links on other websites, checking, managing, and removing invalid links and spam is a set of actions performed by third-party SEO.
Links from one website to another are very important for search engines. Over the years, search engines have become more sensitive to external links.
Therefore, it is important that links meet certain criteria, such as relevance, validity, and reliability. In fact, each link counts as a vote, and its value is determined by the three criteria mentioned above.