`  == Henley as a source ==  I've read your Reliable sources comment now, unfortunately it was archived so I will reply here. I don't know how they advertise themselves, and I am pretty sure many reliable sources have catchphrases. They are obviously working for-profit serving as the immigration managing firm for several countries including an EU member Malta. I am mentioning this because somehow that company may have some across as some random little website spamming around with their irrelevant and dubious ``research``. I've seen regular big newspapers citing them quite often. Now as for their methodology, they don't actually do it themselves, you can see the explanation in detail in their report  - basically they use open source data provided by IATA to compile this list. IATA builds their database by communicating with national governments. No source is perfect, but there is simply no alternative one. Many countries of the so called third world don't even publish their visa policies anywhere online, literally the only place to find out about their visa policies is through IATA. But IATA doesn't make these tables. Now we do have those tables here ourselves, but counting them up and summarizing may be seen as original research. Therefore it is good to have an external source for this, and I think that is why we can trust that report. Either way, whether we like or whether we don't like some source, is an entirely different question to falsifying data provided by this report.  `