https://blog.wongcw.com/2019/10/08/facebook%e3%80%81twitter%e6%b6%89%e5%ab%8c%e9%81%95%e5%8f%8d%e6%ad%90%e7%9b%9fgdpr-%e6%88%96%e9%9d%a2%e8%87%a8%e6%95%b8%e5%8d%81%e5%84%84%e7%be%8e%e5%85%83%e7%bd%b0%e6%ac%be/