https://purengom.com/2022/12/18/sns-%ec%8b%9c%eb%8c%80%ec%97%90-%eb%b8%94%eb%a1%9c%ea%b7%b8%eb%a5%bc-%ec%9c%a0%ec%a7%80%ed%95%9c%eb%8b%a4%eb%8a%94-%ea%b2%83/