Free service to redirect anonymously without referrer. Norefer is the reference for hidden refer link.
Not Applicable 
$ 8.95
HideReferrer is a tool that allows you to create empty referrer tags of any link you wish.
Not Applicable $ 8.95
ForaStat is a free tool which helps analyse websites and estimate valuation including such as Search Engine Reports, Traffic Reports, Social Engagement, Safety, Host Information, Domain WHOIS, Page Speed and much more.