People often ask us about landing pages and the way to make them show the parameters. It's kinda easy to set up.
Firstly you should make sure you have a self-hosted landing page. This feature is available for self-hosted LPs for now, but we are about to make it available both for self-hosted LPs and for AdsBridge LPs.
The second thing you should define - what parameters you want to pass with the campaign URL. And then choose the needed placeholders from the list. When user clicks on your campaign URL, all placeholders will be replaced with the appropriate values. Here's the list of available URL tokens: 
Choose them from the list and add to your landing page URL.
And, finally, Landing Page. The reason why you just read this - you want your LP to display variables. To make your Landing page perform like this you can use the following script:
<html>
<head>
<script>
function getURLParameter(name) {
return decodeURIComponent(
(RegExp(name + '=' + '(.+?)(&|$)').exec(location.search)||[,null])[1] || ''
);
}
</script>
</head>
<body>
Hello <script>document.write(getURLParameter('model'))</script> Caution! Your OS version is not up-to-date enough to visit that site. Press the button to update!
</body>
</html>
This script will take information from the URL with the help of that placeholders and place it's value to you LP. So the setting is done.