54.167.70.22上的网站：
绑定过的域名如下：
2024-07-11-----2024-07-27 invite.duolingo.com
2024-07-10-----2024-07-25 www.duolingo.com
2024-07-20-----2024-07-20 api-il.duolingo.com
2024-07-20-----2024-07-20 pt.duolingo.com
2024-07-20-----2024-07-20 cs.duolingo.com
2024-07-20-----2024-07-20 it.duolingo.com
2024-07-11-----2024-07-11 schools.duolingo.com