As a visitor, when you click on an adf.ly shortened url, it brings you to an ad page, with a time (in seconds) that counts down to zero.
On a computer, that will not be a problem since the time will surely count down and then display a "Skip ad" button which takes you to the original url when clicked. But it becomes a problem on mobile devices with static browsers as the time will not count down—it'll just remain static. And even when you keep reloading the page, there's only a 10% chance of getting the "skip ad" button.
1.When you visit the adf.ly link