Link Protect - Version 2.0 Link Protect can manage downloads of your pages and images. If the call is not from within your site or an authorised site, a customisable default image is displayed. The links in your protected folder are undetectable and safe from searches and hack visits. You can specify domains from which you will accept links such as your other sites or those of authorised associates. Any type of file can be protected with Link Protect - gif, jpg, zip, html, exe.