jQuery verifique si URL contiene cadena
//If URL contains "mystring"
if (window.location.href.indexOf("mystring") > -1) {
}
Ugly Unicorn
//If URL contains "mystring"
if (window.location.href.indexOf("mystring") > -1) {
}<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
if (window.location.href.indexOf("franky") > -1) {
alert("your url contains the name franky");
}
});
</script>