Literally there should NOT be a website like this, because even with slight misinformation, you can get in a lot of troubles: both financial and even more so safety wise if one of 10,000 info points on some tropical configuration of your citizenship, residency, passport type, stamps you have in your passport, plves you been, etc, will be not updated in time and you take it on its face value .

Furthermore, the owner does not and cannot give you any warranty whatsoever, even if this would be run on membership fees not advertising clicks. Im all for OP first website project and kudos for doing something beautiful and even more so getting it up on HN this high, but this site should not exist. Without this site there is more chances that someone who seeks this info will endup on legitimate site - hopefully government run or airline run, and not take this at face value and move on with packing their bags.