TypeKit embed code.php

<?php 
/**
 * Delayed loading of typekit scripts vs Flicker-free loading
 * Source: https://www.farbeyondcode.com/Delayed-loading-of-typekit-scripts-vs-Flicker-free-loading-5-2304.html
 * Avg. Load Time: 66ms; 91ms; 113ms
 */
?>
<script type="text/javascript">
    /* <![CDATA[ */ 
    TypekitConfig = {
        kitId: 'xxxxxxx'
    };
    (function() {
        var tk = document.createElement('script');
        tk.src = '//use.typekit.com/' + TypekitConfig.kitId + '.js';
        tk.type = 'text/javascript';
        tk.async = 'true';
        tk.onload = tk.onreadystatechange = function() {
            var rs = this.readyState;
            if (rs && rs != 'complete' && rs != 'loaded') return;
            try { Typekit.load(TypekitConfig); } catch (e) {}
        };
        var s = document.getElementsByTagName('script')[0];
        s.parentNode.insertBefore(tk, s);
    })(); 
    /* ]]> */
</script>