这是我的代码:
<body>
<div id="fb-root"></div>
<!-- start JavaScript SDK code -->
<script>
(function(d, s, id) {
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) return;
js = d.createElement(s); js.id = id;
js.src = "//connect.facebook.net/en_GB/sdk.js#xfbml=1&version=v2.5";
fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));
</script>
<!-- end JavaScript SDK code -->
<div class="fb-like"
data-href="https://www.facebook.com/EminenceSystem"
data-layout="button_count" data-action="like"
data-show-faces="true" data-share="true">
</div>
</body>
我在主体标记和FaceBook之后将JS-SDK代码放在页脚部分的按钮代码中。结果显示我想要但网站加载时间慢,我如何提高页面速度以便快速加载?