Giveaway task problem

Hey, can anyone help me solve this? (for a giveaway).
The giveaway asks me to "copy this link on any web site or forum / blog" (link: www.bananatic.it/giveaway) and when I click VERIFY it asks me for a URL. What do i put in? thanks in advance
UPDATE: SOLVED
you just need to post the URL given (literally) on a social media like Twitter (and it wasn't specified in this beautiful site) and you have to copy your tweet's URL or your fb's post.