| Domain | Date |
| 0.ntp.axsguard.com | 2025-03-05 |
| 2.ntp.axsguard.com | 2025-01-12 |
| 0.amazon.pool.ntp.org | 2021-04-21 |
| 1.europe.pool.ntp.org | 2021-02-26 |
| 3.datadog.pool.ntp.org | 2020-12-01 |
| pool.ntp.org | 2020-11-19 |
| t1.hshh.org | 2020-11-19 |
| 2.europe.pool.ntp.org | 2020-11-07 |
| europe.pool.ntp.org | 2020-09-02 |
| 3.debian.pool.ntp.org | 2020-08-31 |
| 0.debian.pool.ntp.org | 2020-08-25 |
| 0.pool.ntp.org | 2020-07-27 |
| 1.pool.ntp.org | 2020-07-27 |
| 3.pool.ntp.org | 2020-07-26 |
| 2.pool.ntp.org | 2020-07-25 |