| Property | Value |
| NameServer | NS-1117.AWSDNS-11.ORG |
| Created | 2010-01-26 00:00:00 |
| Changed | 2014-05-11 00:00:00 |
| Expires | 2016-01-26 00:00:00 |
| Registrar | GODADDY.COM, LLC |
| Date | IP Address |
| 2024-02-07 | 54.230.253.54 (ClassC) |
| 2024-12-02 | 99.86.38.34 (ClassC) |
| 2025-01-15 | 99.86.38.37 (ClassC) |
| 2025-01-30 | 99.86.38.82 (ClassC) |
| 2025-05-04 | 204.246.191.34 (ClassC) |
| 2025-05-08 | 204.246.191.79 (ClassC) |
| 2025-06-03 | 99.86.38.85 (ClassC) |
| 2025-07-20 | 204.246.191.107 (ClassC) |
| 2025-07-31 | 204.246.191.25 (ClassC) |
| Date | Domain | IP |
| 2020.duolingo.com | 2021-02-25 | 54.230.126.11 |
| 2021.duolingo.com | 2025-01-12 | 54.165.40.136 |
| ios-api-2.duolingo.com | 2024-09-07 | 34.226.73.199 |
| schools-v2.duolingo.com | 2024-07-22 | 34.230.186.109 |
| englishtest-stage-7.duolingo.com | 2024-06-02 | 104.18.16.230 |
| httpsenglishtest-stage-7.duolingo.com | 2024-08-31 | 54.165.40.136 |
| ja.duolingo.com | 2025-05-24 | 44.212.105.57 |
| athena.duolingo.com | 2024-09-13 | 184.72.124.184 |
| ta.duolingo.com | 2025-05-05 | 52.201.64.68 |
| tts-data.duolingo.com | 2024-08-26 | 108.157.142.110 |
| duolingo-api-web.duolingo.com | 2025-05-23 | 3.89.237.148 |
| duolingo-forum-web.duolingo.com | 2019-10-18 | 13.224.29.90 |
| duolingo-incubator-web.duolingo.com | 2025-05-18 | 108.138.94.29 |
| brb.duolingo.com | 2024-04-04 | 108.138.94.75 |
| club.duolingo.com | 2025-07-26 | 52.203.148.76 |
| abc.duolingo.com | 2025-01-03 | 18.238.217.125 |
| static.duolingo.com | 2015-01-13 | 54.230.91.38 |
| public-static.duolingo.com | 2024-08-09 | 3.163.24.55 |
| incubator-testbed.duolingo.com | 2015-02-11 | 54.165.40.136 |
| id.duolingo.com | 2023-09-03 | 3.224.239.117 |
| math-prod.duolingo.com | 2024-05-06 | 18.213.194.253 |