[seszett]

> visas aren't quite as black and white as the website appears to make out

There are many of these sites and none of them ever has information that can actually be trusted.

The truth is that entry requirements are much too complicated to treat with a single uniform method, and the only reliable way to know what you have to do is to visit both your country's foreign ministry website and the website of the foreign country's consulate in your own country. Maybe the foreign country's foreign ministry website as well.

And even then, for some countries with somewhat shaky administration and rules you still won't be sure of what you need.