| Domain | Date |
| 0.pfsense.pool.ntp.org | 2021-12-14 |
| 3.debian.pool.ntp.org | 2021-01-08 |
| 1.pool.ntp.org | 2020-02-07 |
| 0.amazon.pool.ntp.org | 2019-08-28 |
| 3.europe.pool.ntp.org | 2019-08-28 |
| 1.europe.pool.ntp.org | 2019-03-29 |
| time.musixmatch.com | 2019-03-23 |
| 2.android.pool.ntp.org | 2019-03-13 |
| europe.pool.ntp.org | 2019-03-10 |
| 0.pool.ntp.org | 2019-03-01 |
| 0.europe.pool.ntp.org | 2019-02-25 |
| 2.europe.pool.ntp.org | 2018-08-20 |
| pool.ntp.org | 2018-03-28 |
| 2.pool.ntp.org | 2018-03-23 |
| 3.pool.ntp.org | 2017-12-19 |
| 0.debian.pool.ntp.org | 2017-12-13 |