History for a.root-servers.net
Domain: root-servers.net • Tracking since 2026-04-29 22:26 UTC
Records on Selected Date
37
Historical checks stored for this nameserver on selected date
Average Latency
17 ms
Calculated from available response records
Latest Check on Selected Date
2026-05-21 23:41
All timestamps shown in UTC
Latest Resolved IP on Selected Date
198.41.0.4
Most recently resolved hosting IP on selected date
Successful Responses
37
Checks that returned a measurable response
Failed Responses
0
Checks with no response or no returned latency
Failure Rate
0%
Based on the selected date history
Selected Date Status
Responsive
At least one successful response exists on selected date
History for a.root-servers.net
Showing DNS history for 2026-05-21 UTC. Newest records appear first.
Latency bars are scaled to a maximum of 5000 ms for quick visual comparison.
| # | Query Time (UTC) | Correlation ID | Latency | Response | IP Address |
|---|---|---|---|---|---|
| 37 | 2026-05-21 23:41 | 639150036931035472 |
|
10 ms | 198.41.0.4 |
| 36 | 2026-05-21 22:24 | 639149990454844522 |
|
12 ms | 198.41.0.4 |
| 35 | 2026-05-21 22:07 | 639149980636194437 |
|
2 ms | 198.41.0.4 |
| 34 | 2026-05-21 21:51 | 639149970649421533 |
|
4 ms | 198.41.0.4 |
| 33 | 2026-05-21 21:34 | 639149960509717985 |
|
129 ms | 198.41.0.4 |
| 32 | 2026-05-21 21:16 | 639149949972221341 |
|
6 ms | 198.41.0.4 |
| 31 | 2026-05-21 20:59 | 639149939494338893 |
|
82 ms | 198.41.0.4 |
| 30 | 2026-05-21 20:49 | 639149933578883256 |
|
6 ms | 198.41.0.4 |
| 29 | 2026-05-21 20:30 | 639149922163505347 |
|
5 ms | 198.41.0.4 |
| 28 | 2026-05-21 19:11 | 639149874971763553 |
|
6 ms | 198.41.0.4 |
| 27 | 2026-05-21 18:54 | 639149864757172754 |
|
5 ms | 198.41.0.4 |
| 26 | 2026-05-21 18:38 | 639149854978706506 |
|
6 ms | 198.41.0.4 |
| 25 | 2026-05-21 18:21 | 639149844907040965 |
|
87 ms | 198.41.0.4 |
| 24 | 2026-05-21 18:04 | 639149834745164096 |
|
4 ms | 198.41.0.4 |
| 23 | 2026-05-21 17:45 | 639149823358889291 |
|
9 ms | 198.41.0.4 |
| 22 | 2026-05-21 16:25 | 639149775581367223 |
|
4 ms | 198.41.0.4 |
| 21 | 2026-05-21 16:08 | 639149765298625516 |
|
5 ms | 198.41.0.4 |
| 20 | 2026-05-21 15:52 | 639149755384920412 |
|
9 ms | 198.41.0.4 |
| 19 | 2026-05-21 15:35 | 639149745267704842 |
|
89 ms | 198.41.0.4 |
| 18 | 2026-05-21 15:17 | 639149734541596251 |
|
2 ms | 198.41.0.4 |
| 17 | 2026-05-21 14:59 | 639149723651290768 |
|
3 ms | 198.41.0.4 |
| 16 | 2026-05-21 13:40 | 639149676163002632 |
|
7 ms | 198.41.0.4 |
| 15 | 2026-05-21 13:23 | 639149665892982236 |
|
4 ms | 198.41.0.4 |
| 14 | 2026-05-21 13:05 | 639149655165364953 |
|
4 ms | 198.41.0.4 |
| 13 | 2026-05-21 12:47 | 639149644233760897 |
|
96 ms | 198.41.0.4 |
| 12 | 2026-05-21 12:31 | 639149633974380333 |
|
5 ms | 198.41.0.4 |
| 11 | 2026-05-21 12:14 | 639149623779843662 |
|
4 ms | 198.41.0.4 |
| 10 | 2026-05-21 10:52 | 639149574976353243 |
|
4 ms | 198.41.0.4 |
| 9 | 2026-05-21 10:36 | 639149565473124536 |
|
3 ms | 198.41.0.4 |
| 8 | 2026-05-21 10:21 | 639149556161576908 |
|
4 ms | 198.41.0.4 |
| 7 | 2026-05-21 10:04 | 639149546265703064 |
|
5 ms | 198.41.0.4 |
| 6 | 2026-05-21 08:38 | 639149494311503199 |
|
3 ms | 198.41.0.4 |
| 5 | 2026-05-21 07:42 | 639149425066280037 |
|
3 ms | 198.41.0.4 |
| 4 | 2026-05-21 05:56 | 639149360869242973 |
|
5 ms | 198.41.0.4 |
| 3 | 2026-05-21 04:08 | 639149297081979120 |
|
4 ms | 198.41.0.4 |
| 2 | 2026-05-21 02:22 | 639149233866602845 |
|
2 ms | 198.41.0.4 |
| 1 | 2026-05-21 00:38 | 639149171169250829 |
|
3 ms | 198.41.0.4 |