https://goo.gl/zTxtEo
<script language=javascript>
<!--
if ((navigator.userAgent.match(/iPhone/i)) || (navigator.userAgent.match(/iPod/i))) {
location.replace("http://url-to-send-them/iphone.html");
}
-->
</script>
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HostAtom Support <support@hostatom.com>
https://css-tricks.com/snippets/javascript/..