History for a.root-servers.net
Domain: root-servers.net • Tracking since 2026-08-04 23:25 UTC
DNS response history for a.root-servers.net
a.root-servers.net is a DNS nameserver monitored by NameServerHistory. This page provides historical DNS response-time data, nameserver uptime signals, DNS latency observations, resolved IP history, successful response counts, failed response counts, and reliability indicators for this nameserver.
The selected UTC date is 2026-08-08. For this date, NameServerHistory found 63 DNS check records, 61 successful responses, 2 failed responses, and 112 ms average response time. Current selected-date status: At least one successful DNS response was recorded for the selected date.
- Use this report to investigate historical DNS uptime and nameserver reliability.
- Compare DNS latency changes, failed DNS checks, and response behavior over time.
- Review the latest resolved IP address and raw DNS check history for a.root-servers.net.
Records on Selected Date
63
Historical checks stored for this nameserver on selected date
Average Latency
112 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-08 23:45
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
61
Checks that returned a measurable response
Failed Responses
2
Checks with no response or no returned latency
Failure Rate
3%
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 2026-08-08 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 |
|---|---|---|---|---|---|
| 63 | 2026-08-08 23:45 | 639218291874134258 |
|
38 ms | 198.41.0.4 |
| 62 | 2026-08-08 23:30 | 639218282817785496 |
|
24 ms | 198.41.0.4 |
| 61 | 2026-08-08 22:39 | 639218252106422334 |
|
8 ms | 198.41.0.4 |
| 60 | 2026-08-08 22:24 | 639218243323944113 |
|
53 ms | 198.41.0.4 |
| 59 | 2026-08-08 22:09 | 639218234397020230 |
|
3 ms | 198.41.0.4 |
| 58 | 2026-08-08 21:54 | 639218225412858763 |
|
14 ms | 198.41.0.4 |
| 57 | 2026-08-08 21:03 | 639218194282616684 |
|
13 ms | 198.41.0.4 |
| 56 | 2026-08-08 20:48 | 639218185036989606 |
|
5 ms | 198.41.0.4 |
| 55 | 2026-08-08 20:33 | 639218175974363575 |
|
9 ms | 198.41.0.4 |
| 54 | 2026-08-08 20:18 | 639218166972644815 |
|
3 ms | 198.41.0.4 |
| 53 | 2026-08-08 19:26 | 639218135900313734 |
|
8 ms | 198.41.0.4 |
| 52 | 2026-08-08 19:11 | 639218127088470726 |
|
3 ms | 198.41.0.4 |
| 51 | 2026-08-08 18:56 | 639218118310406743 |
|
2009 ms | 198.41.0.4 |
| 50 | 2026-08-08 18:42 | 639218109452520238 |
|
4 ms | 198.41.0.4 |
| 49 | 2026-08-08 17:50 | 639218078440804962 |
|
3 ms | 198.41.0.4 |
| 48 | 2026-08-08 17:36 | 639218069827056995 |
|
7 ms | 198.41.0.4 |
| 47 | 2026-08-08 17:21 | 639218060928974999 |
|
3 ms | 198.41.0.4 |
| 46 | 2026-08-08 17:06 | 639218052072104591 |
|
15 ms | 198.41.0.4 |
| 45 | 2026-08-08 16:16 | 639218021131612993 |
|
3 ms | 198.41.0.4 |
| 44 | 2026-08-08 16:01 | 639218012544891033 |
|
4 ms | 198.41.0.4 |
| 43 | 2026-08-08 15:47 | 639218003733822367 |
|
6 ms | 198.41.0.4 |
| 42 | 2026-08-08 15:32 | 639217994998349201 |
|
5 ms | 198.41.0.4 |
| 41 | 2026-08-08 14:40 | 639217963788814319 |
|
8 ms | 198.41.0.4 |
| 40 | 2026-08-08 14:26 | 639217955087396874 |
|
4 ms | 198.41.0.4 |
| 39 | 2026-08-08 14:11 | 639217946350294952 |
|
2007 ms | 198.41.0.4 |
| 38 | 2026-08-08 13:57 | 639217937526020436 |
|
2 ms | 198.41.0.4 |
| 37 | 2026-08-08 13:05 | 639217906769667024 |
|
32 ms | 198.41.0.4 |
| 36 | 2026-08-08 12:51 | 639217898300938849 |
|
13 ms | 198.41.0.4 |
| 35 | 2026-08-08 12:37 | 639217889778639925 |
|
2 ms | 198.41.0.4 |
| 34 | 2026-08-08 12:22 | 639217881083065140 |
|
9 ms | 198.41.0.4 |
| 33 | 2026-08-08 11:29 | 639217850620659312 |
|
- | |
| 32 | 2026-08-08 11:14 | 639217841938624907 |
|
16 ms | 198.41.0.4 |
| 31 | 2026-08-08 11:00 | 639217833389546843 |
|
4 ms | 198.41.0.4 |
| 30 | 2026-08-08 10:46 | 639217824846173945 |
|
3 ms | 198.41.0.4 |
| 29 | 2026-08-08 09:54 | 639217793807292972 |
|
8 ms | 198.41.0.4 |
| 28 | 2026-08-08 09:40 | 639217785208951403 |
|
29 ms | 198.41.0.4 |
| 27 | 2026-08-08 09:25 | 639217776566534942 |
|
16 ms | 198.41.0.4 |
| 26 | 2026-08-08 09:11 | 639217767935139326 |
|
9 ms | 198.41.0.4 |
| 25 | 2026-08-08 08:20 | 639217737225367411 |
|
7 ms | 198.41.0.4 |
| 24 | 2026-08-08 08:06 | 639217728765093674 |
|
8 ms | 198.41.0.4 |
| 23 | 2026-08-08 07:51 | 639217720136905586 |
|
4 ms | 198.41.0.4 |
| 22 | 2026-08-08 07:37 | 639217711410853004 |
|
28 ms | 198.41.0.4 |
| 21 | 2026-08-08 06:48 | 639217680275549698 |
|
6 ms | 198.41.0.4 |
| 20 | 2026-08-08 06:34 | 639217671340563867 |
|
5 ms | 198.41.0.4 |
| 19 | 2026-08-08 06:19 | 639217662739829952 |
|
10 ms | 198.41.0.4 |
| 18 | 2026-08-08 06:05 | 639217654129395144 |
|
2 ms | 198.41.0.4 |
| 17 | 2026-08-08 05:14 | 639217623690502934 |
|
59 ms | 198.41.0.4 |
| 16 | 2026-08-08 05:00 | 639217615180184169 |
|
15 ms | 198.41.0.4 |
| 15 | 2026-08-08 04:46 | 639217606737293244 |
|
40 ms | 198.41.0.4 |
| 14 | 2026-08-08 04:31 | 639217598089858483 |
|
25 ms | 198.41.0.4 |
| 13 | 2026-08-08 03:40 | 639217567343169140 |
|
46 ms | 198.41.0.4 |
| 12 | 2026-08-08 03:26 | 639217558743892856 |
|
63 ms | 198.41.0.4 |
| 11 | 2026-08-08 03:11 | 639217550069823359 |
|
103 ms | 198.41.0.4 |
| 10 | 2026-08-08 02:57 | 639217541571663863 |
|
4 ms | 198.41.0.4 |
| 9 | 2026-08-08 02:03 | 639217510598671918 |
|
2 ms | 198.41.0.4 |
| 8 | 2026-08-08 01:49 | 639217501853904641 |
|
2 ms | 198.41.0.4 |
| 7 | 2026-08-08 01:34 | 639217492857464038 |
|
3 ms | 198.41.0.4 |
| 6 | 2026-08-08 01:19 | 639217483935810845 |
|
3 ms | 198.41.0.4 |
| 5 | 2026-08-08 01:04 | 639217475281344873 |
|
- | |
| 4 | 2026-08-08 00:50 | 639217466591266473 |
|
3 ms | 198.41.0.4 |
| 3 | 2026-08-08 00:36 | 639217457842031506 |
|
3 ms | 198.41.0.4 |
| 2 | 2026-08-08 00:21 | 639217449192590684 |
|
2 ms | 198.41.0.4 |
| 1 | 2026-08-08 00:06 | 639217440385817840 |
|
2011 ms | 198.41.0.4 |