QUESTION ONE: I have noticed that Matomo language codes sometimes appear as two-characters and sometimes as two character pairs separated by a hyphen. When only two characters appear, how does one determine the country. For example, does en mean the UK, US, Australia, Canada, Nigeria, New Zealand?
QUESTION ONE: What code is used to determine the country on the world map used by Matomo?
When two characters appear it means matomo was not able to detect country. To improve the location detection, use geoIP 2 PHP(Recomended) or geoIP 2 Apache.
For using gepIP plugin go to matomo server-> administrator -> System -> Geolocation