You know that uiz.io was a pretty great url shortener few months ago, I even used it and got so many payments which I reported here BUT BUT BUT, the admin made a lot of changes since then and right now it is useless to work on it. My visitors are blocked on first ad page asking (forcing them) to allow push ads to continue to destination page. This behavior is a cheating for me and not fair from the admin of uiz. Also other people are telling me their visitors suffer same ads, so it's not only me. In case the admin see this report and want to improve his service and get more publishers I strongly recommend him to remove those aggressive ads and take care for his publishers need, rather than tricking them that way.
I DON'T RECOMMEND YOU TO USE UIZ-io URL SHORTENER RIGHT NOW!