Alexa Redirects

Unfortunately, the previous Alexa-dedicated page is closed. But I’m still looking for some help… “Use Alexa Redirects Offsite” - what does it mean?
And one more question: Is it possible to paste links (to you site) into your reviews on Alexa site? I read that is is quite possible, if you use redirecting links. But does it still work?
Thanks for your responses in advance.