All pages should be accessible in 3 clicks
All pages should be accessible in 3 clicks - Ul MYTH
Usability tests have long challenged the so called three-click rule or two tap rule. Contrary to popular belief, people don't leave your site or app if they're unable to find the desired information in 3 clicks or taps. In fact, the number of necessary clicks affects neither user satisfaction, nor success rate. That's right; fewer clicks don't make users happier and aren't necessarily perceived as faster.
What really counts here is ease of navigation, the constant scent of information along the user's path. If you don't make the user think about the clicks, they won't mind having a few extra clicks.