| Domain | Date |
| 2.boot2docker.pool.ntp.org | 2021-03-19 |
| 0.arch.pool.ntp.org | 2020-11-22 |
| 3.centos.pool.ntp.org | 2020-09-30 |
| 1.coreos.pool.ntp.org | 2020-09-24 |
| 2.sophos.pool.ntp.org | 2020-08-17 |
| 3.us.pool.ntp.org | 2019-08-12 |
| time.musixmatch.com | 2019-07-19 |
| 3.pool.ntp.org | 2019-06-26 |
| 3.amazon.pool.ntp.org | 2019-05-26 |
| 0.amazon.pool.ntp.org | 2019-04-19 |
| 1.nettime.pool.ntp.org | 2019-04-17 |
| t1.hshh.org | 2019-01-18 |
| 1.pool.ntp.org | 2018-12-27 |
| 2.pool.ntp.org | 2018-08-28 |
| 0.ubuntu.pool.ntp.org | 2018-06-17 |
| 0.north-america.pool.ntp.org | 2018-06-06 |
| 0.us.pool.ntp.org | 2018-04-01 |