谷歌标签管理器指导开发者:
将此代码 [THE TRACKING CODE] 置于页面的
<head>
尽可能靠上的位置:
<!-- 谷歌标签管理器 --> <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window,document,'script','dataLayer','GTM-XXXXXXX');</script> <!-- 结束谷歌标签管理器 -->
我的问题是,该代码可以放置多高才能正常运作? 这意味着,在不出现问题/警告/错误的情况下,能在超过95%的浏览器上运行,并/或根据HTML最佳实践。
它是否可以直接放在打开的 <head>
标记之后? 只要它在 <head>
部分的任何地方就可以吗?
作为参考/示例,以下是HTML样板。 对于跟踪代码,最佳位置在哪里?
<!doctype html>
<html class="no-js" lang="">
<head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<title></title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="manifest" href="site.webmanifest">
<link rel="apple-touch-icon" href="icon.png">
<!-- Place favicon.ico in the root directory -->
<link rel="stylesheet" href="css/normalize.css">
<link rel="stylesheet" href="css/main.css">
</head>
<body>
<!--[if lte IE 9]>
<p class="browserupgrade">You are using an <strong>outdated</strong> browser. Please <a href="https://browsehappy.com/">upgrade your browser</a> to improve your experience and security.</p>
<![endif]-->
<!-- Add your site or application content here -->
<p>Hello world! This is HTML5 Boilerplate.</p>
<script src="js/vendor/modernizr-{{MODERNIZR_VERSION}}.min.js"></script>
<script src="https://code.jquery.com/jquery-{{JQUERY_VERSION}}.min.js" integrity="{{JQUERY_SRI_HASH}}" crossorigin="anonymous"></script>
<script></script>
<script src="js/plugins.js"></script>
<script src="js/main.js"></script>
<!-- Google Analytics: change UA-XXXXX-Y to be your site's ID. -->
<script>
window.ga=function(){ga.q.push(arguments)};ga.q=[];ga.l=+new Date;
ga('create','UA-XXXXX-Y','auto');ga('send','pageview')
</script>
<script src="https://www.google-analytics.com/analytics.js" async defer></script>
</body>
</html>