| Domain | Date |
| 0.nettime.pool.ntp.org | 2019-01-27 |
| 3.pool.ntp.org | 2019-01-27 |
| 1.nettime.pool.ntp.org | 2019-01-24 |
| 0.us.pool.ntp.org | 2019-01-13 |
| t1.hshh.org | 2018-12-21 |
| 0.north-america.pool.ntp.org | 2018-12-13 |
| 1.pool.ntp.org | 2018-12-02 |
| time.musixmatch.com | 2018-12-01 |
| 3.amazon.pool.ntp.org | 2018-11-19 |
| 2.pool.ntp.org | 2018-11-12 |
| 1.debian.pool.ntp.org | 2018-10-21 |
| 1.coreos.pool.ntp.org | 2018-10-16 |
| 0.ubuntu.pool.ntp.org | 2018-10-10 |
| 3.us.pool.ntp.org | 2018-10-05 |
| 0.pfsense.pool.ntp.org | 2018-09-24 |
| 0.lede.pool.ntp.org | 2018-09-17 |
| 0.fedora.pool.ntp.org | 2018-09-11 |
| 0.centos.pool.ntp.org | 2018-09-10 |
| 0.freebsd.pool.ntp.org | 2018-08-24 |