When it comes to social networking sites, the ones familiar to people domestically are undoubtedly Renren and Kaixin001, while internationally, the most famous one is undoubtedly Facebook, which can be considered the pioneer of global social networking sites. Its success is not without the use of SEO techniques, so how do they utilize SEO so effectively? The skills involved are well worth our study and reference. Today, Hefei Website Optimization will take everyone to explore the SEO optimization methods of renowned social networking sites.