I did not like Duolinguo, it was too playful for me.
I prefer https://clozemaster.com/
connect to clozemaster.com (3.33.152.147) port 443 (tcp) timed out
Edit: found a screenshot https://www.programosy.pl/download/screens/19186/android-clo... which looks like a straightforward/nice learning experience indeed
This is the first time I saw a website simply firewalling a country (or ASN?); typically you get a proper error message.
Works from a Dutch mobile IP address so the site is indeed up (bless mobile data tunneling traffic through their home countries)
I did not like Duolinguo, it was too playful for me.
I prefer https://clozemaster.com/