How do I redirect to preserve tracking tags?

Some sites do automatic redirection for a variety of reasons:

• A/B Testing
• URL changes
• Ended Campaigns or Landing Pages updated

If your page redirects using JavaScript, you can still track on that page by using a bit of JavaScript for redirection:

<script type="text/javascript">
/* Edit this URL as needed */
var redirect_url = 'http://www.example.com/page/to/redirect.html?to=here';

/* No need to edit below here */
var query_string = window.location.search, referrer = window.document.referrer;
if (query_string) {
	redirect_url += (redirect_url.indexOf('?') >= 0 ? '&' : '?') + query_string.substr(1);
}
if (referrer) {
	redirect_url += (redirect_url.indexOf('?') >= 0 ? '&' : '?') + "crxref=" + escape(referrer);
}
window.location = redirect_url;
</script>

The redirect code actually preserves all query string parameters, and also adds the page referrer to the URL so it can be recorded by ConversionRuler.