Background: I messaged a friend via WeChat last Wednesday and haven't received a response up until now. Prior to that, she and her friend had been traveling in Thailand, and according to her Weibo updates, they may have arrived in Europe. Yesterday, I even left a private message on her Xiaohongshu account, but she still hasn't responded. At this point, I am both worried that something unexpected may have happened and hesitant to blow the situation out of proportion, as it's possible that she simply lost contact in her social network. For instance, I've considered trying to contact her parents or reporting it to the authorities. As a result, I thought of a compromise solution: checking her social media accounts to see if they are still active to determine whether she's still alive.