Links to posts, notes, videos, music and other content you share online can unintentionally leak your personal account info. Most apps use identity tracking technology in shared links that embed your account details, so anyone can look up your account and view your activity via the links you share. You can use this site to check the account name, profile picture and homepage link hidden in shared links. It currently supports reverse account lookups via shared links from Xiaohongshu, Weibo, NetEase Cloud Music, QQ Music, WeSing, Ximalaya, Bilibili, Baidu, Coolapk, Zhihu, Xiaoyuzhou, Soda Music, Knowledge Planet and Jike.