3.208.101.13上的网站：
绑定过的域名如下：
2024-02-13-----2024-02-13 id.duolingo.com
2024-02-06-----2024-02-12 api.duolingo.com
2024-02-07-----2024-02-07 forum.duolingo.com
2024-02-01-----2024-02-01 www.duolingo.com
2024-02-13-----2024-02-13 id.duolingo.com
2024-02-06-----2024-02-12 api.duolingo.com
2024-02-07-----2024-02-07 forum.duolingo.com
2024-02-01-----2024-02-01 www.duolingo.com