| Domain | Date |
| 0.debian.pool.ntp.org | 2022-09-26 |
| 2.pool.ntp.org | 2020-12-22 |
| europe.pool.ntp.org | 2020-10-29 |
| 1.europe.pool.ntp.org | 2020-10-12 |
| 0.pool.ntp.org | 2020-10-09 |
| 2.ch.pool.ntp.org | 2019-08-03 |
| ch.pool.ntp.org | 2019-07-28 |
| swisstime.ethz.ch | 2019-05-22 |
| 2.android.pool.ntp.org | 2019-02-27 |