Referrer-Policy Not Implemented
Invicti detected that no Referrer-Policy header implemented.
Referrer-Policy is a security header designed to prevent cross-domain Referer leakage.
Referer header is a request header that indicates the site which the traffic originated from. If there is no adequate prevention in place, the URL itself, and even sensitive information contained in the URL will be leaked to the cross-site.
The lack of Referrer-Policy header might affect privacy of the users and site's itself
In a response header:
Referrer-Policy: no-referrer | same-origin | origin | strict-origin | no-origin-when-downgrading
In a META tag
<meta name="Referrer-Policy" value="no-referrer | same-origin"/>
In an element attribute
<a href="http://crosssite.example.com" rel="noreferrer"></a>
or
<a href="http://crosssite.example.com" referrerpolicy="no-referrer | same-origin | origin | strict-origin | no-origin-when-downgrading"></a>
Please implement a Referrer-Policy by using the Referrer-Policy response header or by declaring it in the meta tags. It’s also possible to control referrer information over an HTML-element by using the rel attribute.
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