Use any of the following method to stop Sending HTTP Referer Headers from Your Website to a website you are redirecting. In most cases, this isn’t harmful, but there are situations where the URL should be hidden.
Using REL Attribute
<a href="http://example.com" rel="noreferrer">Example.com</a>
Using META Attribute
<meta name="referrer" content="no-referrer">
Using another EXIT url
<a href="/exit.php?url=http%3A%2F%2Fexample.com">Example.com</a>
