- automatically scrapping websites
- paying someone to do the work manually
- who knows, there might be a database that someone else maintains, free or paid, and the website just displays the information
Finally, the visitors will go to the official site to verify the visa requirements. When the covid is around, the visa requirements are changed by the gov frequently
- automatically scrapping websites - paying someone to do the work manually - who knows, there might be a database that someone else maintains, free or paid, and the website just displays the information
Or a mix of all that.