$(document).ready(function () {
    (function () {
        var req = new XMLHttpRequest();
        req.open('GET', document.location, false);
        req.send(null);
        var headers = req.getAllResponseHeaders();
        var SSLTLSHeader = req.getResponseHeader('akamai_tls_version');
        var tlsVersion12 = "tls1.2";
        var tlsVersion13 = "tls1.3";
        //CHECK HEADER DOES NOT EXIST

        if (SSLTLSHeader === null || typeof SSLTLSHeader === 'undefined')
        {
            // no message
            //CHECK IF TLS 1.2 or greater
        } else if (SSLTLSHeader != null && typeof SSLTLSHeader !== 'undefined' && (SSLTLSHeader.toLowerCase().indexOf(tlsVersion12) >= 0 || SSLTLSHeader.toLowerCase().indexOf(tlsVersion13) >= 0))
        {
            // no message
        } else {
            $("#SSLTLS").show();

        }
    })();

});