| Date | IP Address |
| 2014-07-02 | 54.212.248.193 (ClassC) |
| 2015-02-21 | 54.148.254.243 (ClassC) |
| 2015-02-21 | 54.69.21.248 (ClassC) |
| 2024-03-13 | 104.16.176.44 (ClassC) |
| 2024-03-25 | 104.17.14.48 (ClassC) |
| 2025-01-19 | 104.18.111.164 (ClassC) |
| 2025-01-28 | 104.16.32.228 (ClassC) |
| 2025-07-11 | 104.16.163.32 (ClassC) |
| 2025-07-16 | 104.16.147.32 (ClassC) |
| Date | Domain | IP |
| static.codepen.io | 2024-01-16 | 104.16.176.44 |
| apc.codepen.io | 2024-04-22 | 146.75.42.132 |
| assets-staging.codepen.io | 2024-11-21 | 104.18.111.164 |
| blog.codepen.io | 2024-10-20 | 104.16.32.228 |
| mail.codepen.io | 2014-10-14 | 54.237.217.91 |
| s.codepen.io | 2024-12-24 | 104.16.32.228 |
| assets.codepen.io | 2023-08-31 | 104.16.176.44 |
| production-assets.codepen.io | 2024-11-22 | 104.18.111.164 |
| cpwebassets.codepen.io | 2023-10-16 | 104.17.14.48 |
| shots.codepen.io | 2023-08-09 | 104.17.14.48 |
| assets-development.codepen.io | 2024-10-29 | 104.18.111.164 |
| podcast.codepen.io | 2024-12-24 | 104.16.32.228 |
| www.codepen.io | 2024-01-16 | 104.17.14.48 |