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<html><head><title>How can I make a URL look unique?</title></head><body>
<strong>How can I make a URL look unique?</strong><br />
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For technical reasons, certain URLs within ClickMagick—for example a Rotator Backup URL—must be unique and not be used anywhere else.<br />
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If you need to use an existing URL somewhere else that requires a unique URL, you can make any URL unique-looking by simply adding a random “query string” to the end of the URL.<br />
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For example say this is the URL you want to use, but it’s already being used somewhere else:<br />
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<code>http://www.mysite.com/welcome.html</code><br />
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You can make the above URL look unique—without changing its functionality—by simply adding a meaningless query string to it, such as <code>?foo=1</code>:<br />
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<code>http://www.mysite.com/welcome.html<strong>?foo=1</strong></code><br />
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If the URL already has a query string, you can simply add another <code>&name=value</code> pair to the end of it to create a unique link. For example, suppose you already have this link which has the existing query string <code>?newvisitor=yes</code>:<br />
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<code>http://www.mysite.com/welcome.html?newvisitor=yes</code><br />
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In this case you’d just add an <em>additional</em> query string parameter to the end like this:<br />
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<code>http://www.mysite.com/welcome.html?newvisitor=yes<strong>&foo=1</strong></code><br />
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Adding an extra query string parameter doesn’t change the functionality of the link in any way, but it does make the link appear to be different.<br />
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<div class="faq-tip"><b>Tip: </b>For a quick overview on query strings and how to add or modify them, check out this FAQ:<br />
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<td style="box-sizing: border-box; width: 20px;"><a href="/user/faqs.cgi?answer=177"><img height="20" src="//cdn.clickmagick.com/images/user/faqpage.gif" style="box-sizing: border-box; border: 0px; vertical-align: middle;" width="17" /></a></td>
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<td style="box-sizing: border-box;"><b><a href="/user/faqs.cgi?answer=177">What is a Query String?</a></b></td>
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