What is the advantage of that over just using the official website in the first place? It seems like you'd need to do that even if you used Visalist, so you might as well skip the middleman and just go straight to the reliable information.
It's not always as easy, as each country, and sometimes each embassy has their own structure on their respective website. This service has a lot of merit, especially if used as directory to links of the original source of information. Try finding out whether a Bangladeshi citizen traveling to Saudi Arabia can travel without visa, with visa, with visa on arrival or not at all from a google search.
