https://blog.clarence.tw/2023/10/06/%e6%b7%b1%e5%85%a5%e4%ba%86%e8%a7%a3-google-analytics-4-%e4%b8%ad%e7%9a%84%e4%ba%8b%e4%bb%b6%e8%bf%bd%e8%b9%a4%ef%bc%9a%e6%af%8f%e4%bd%8d%e4%bd%bf%e7%94%a8%e8%80%85%e4%ba%92%e5%8b%95%e5%b7%a5%e4%bd%9c/