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 2026-08-10. For this date, NameServerHistory found 82 DNS check records, 82 successful responses, 0 failed responses, and 251 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
82
Historical checks stored for this nameserver on selected date
Average Latency
251 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-10 23:57
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
82
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 2026-08-10 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 |
|---|---|---|---|---|---|
| 82 | 2026-08-10 23:57 | 639220027366289509 |
|
7 ms | 198.41.0.4 |
| 81 | 2026-08-10 23:42 | 639220018272941900 |
|
7 ms | 198.41.0.4 |
| 80 | 2026-08-10 23:26 | 639220009109892969 |
|
37 ms | 198.41.0.4 |
| 79 | 2026-08-10 23:11 | 639220000040489788 |
|
26 ms | 198.41.0.4 |
| 78 | 2026-08-10 22:56 | 639219991197135747 |
|
6 ms | 198.41.0.4 |
| 77 | 2026-08-10 22:41 | 639219982104540014 |
|
6 ms | 198.41.0.4 |
| 76 | 2026-08-10 22:26 | 639219973150300215 |
|
8 ms | 198.41.0.4 |
| 75 | 2026-08-10 22:11 | 639219964188486697 |
|
8 ms | 198.41.0.4 |
| 74 | 2026-08-10 21:56 | 639219954995921784 |
|
22 ms | 198.41.0.4 |
| 73 | 2026-08-10 21:40 | 639219945559908104 |
|
55 ms | 198.41.0.4 |
| 72 | 2026-08-10 20:48 | 639219914137782273 |
|
9 ms | 198.41.0.4 |
| 71 | 2026-08-10 20:32 | 639219904858355064 |
|
2037 ms | 198.41.0.4 |
| 70 | 2026-08-10 20:17 | 639219895655263396 |
|
3 ms | 198.41.0.4 |
| 69 | 2026-08-10 20:02 | 639219886527091074 |
|
8 ms | 198.41.0.4 |
| 68 | 2026-08-10 19:46 | 639219877343266628 |
|
4 ms | 198.41.0.4 |
| 67 | 2026-08-10 19:31 | 639219868177358195 |
|
36 ms | 198.41.0.4 |
| 66 | 2026-08-10 19:16 | 639219859159581515 |
|
37 ms | 198.41.0.4 |
| 65 | 2026-08-10 19:01 | 639219850124020182 |
|
45 ms | 198.41.0.4 |
| 64 | 2026-08-10 18:46 | 639219840940124840 |
|
2018 ms | 198.41.0.4 |
| 63 | 2026-08-10 18:30 | 639219831829876486 |
|
29 ms | 198.41.0.4 |
| 62 | 2026-08-10 18:15 | 639219822587759143 |
|
25 ms | 198.41.0.4 |
| 61 | 2026-08-10 17:59 | 639219813247114428 |
|
87 ms | 198.41.0.4 |
| 60 | 2026-08-10 17:07 | 639219781959606396 |
|
12 ms | 198.41.0.4 |
| 59 | 2026-08-10 16:52 | 639219772658305431 |
|
25 ms | 198.41.0.4 |
| 58 | 2026-08-10 16:36 | 639219763454523027 |
|
3 ms | 198.41.0.4 |
| 57 | 2026-08-10 16:21 | 639219754279127815 |
|
2041 ms | 198.41.0.4 |
| 56 | 2026-08-10 16:06 | 639219745087467767 |
|
41 ms | 198.41.0.4 |
| 55 | 2026-08-10 15:50 | 639219735900678107 |
|
4 ms | 198.41.0.4 |
| 54 | 2026-08-10 15:35 | 639219726531461979 |
|
2053 ms | 198.41.0.4 |
| 53 | 2026-08-10 15:20 | 639219717415222156 |
|
30 ms | 198.41.0.4 |
| 52 | 2026-08-10 15:04 | 639219708266470863 |
|
3 ms | 198.41.0.4 |
| 51 | 2026-08-10 14:49 | 639219699049479559 |
|
12 ms | 198.41.0.4 |
| 50 | 2026-08-10 14:34 | 639219689775815194 |
|
7 ms | 198.41.0.4 |
| 49 | 2026-08-10 14:18 | 639219680511810632 |
|
32 ms | 198.41.0.4 |
| 48 | 2026-08-10 13:24 | 639219648997191257 |
|
35 ms | 198.41.0.4 |
| 47 | 2026-08-10 13:09 | 639219639938909436 |
|
85 ms | 198.41.0.4 |
| 46 | 2026-08-10 12:54 | 639219630718286441 |
|
14 ms | 198.41.0.4 |
| 45 | 2026-08-10 12:38 | 639219621472350410 |
|
2010 ms | 198.41.0.4 |
| 44 | 2026-08-10 12:23 | 639219612500421992 |
|
4043 ms | 198.41.0.4 |
| 43 | 2026-08-10 12:08 | 639219603383833445 |
|
2009 ms | 198.41.0.4 |
| 42 | 2026-08-10 11:53 | 639219594143823358 |
|
33 ms | 198.41.0.4 |
| 41 | 2026-08-10 11:38 | 639219585053166024 |
|
55 ms | 198.41.0.4 |
| 40 | 2026-08-10 11:22 | 639219575885776644 |
|
10 ms | 198.41.0.4 |
| 39 | 2026-08-10 11:07 | 639219566844532361 |
|
33 ms | 198.41.0.4 |
| 38 | 2026-08-10 10:52 | 639219557705808294 |
|
73 ms | 198.41.0.4 |
| 37 | 2026-08-10 10:37 | 639219548482688649 |
|
12 ms | 198.41.0.4 |
| 36 | 2026-08-10 09:46 | 639219517492763539 |
|
36 ms | 198.41.0.4 |
| 35 | 2026-08-10 09:31 | 639219508755773605 |
|
105 ms | 198.41.0.4 |
| 34 | 2026-08-10 09:17 | 639219499852103863 |
|
10 ms | 198.41.0.4 |
| 33 | 2026-08-10 09:01 | 639219490893714387 |
|
50 ms | 198.41.0.4 |
| 32 | 2026-08-10 08:47 | 639219482299305521 |
|
65 ms | 198.41.0.4 |
| 31 | 2026-08-10 08:33 | 639219473613114853 |
|
25 ms | 198.41.0.4 |
| 30 | 2026-08-10 08:18 | 639219465061138643 |
|
130 ms | 198.41.0.4 |
| 29 | 2026-08-10 08:04 | 639219456616129015 |
|
93 ms | 198.41.0.4 |
| 28 | 2026-08-10 07:50 | 639219447974008557 |
|
35 ms | 198.41.0.4 |
| 27 | 2026-08-10 07:36 | 639219439498255213 |
|
73 ms | 198.41.0.4 |
| 26 | 2026-08-10 07:21 | 639219430664872256 |
|
174 ms | 198.41.0.4 |
| 25 | 2026-08-10 07:06 | 639219421757560037 |
|
60 ms | 198.41.0.4 |
| 24 | 2026-08-10 06:16 | 639219390773218684 |
|
11 ms | 198.41.0.4 |
| 23 | 2026-08-10 06:01 | 639219382205367722 |
|
32 ms | 198.41.0.4 |
| 22 | 2026-08-10 05:47 | 639219373711937615 |
|
34 ms | 198.41.0.4 |
| 21 | 2026-08-10 05:33 | 639219365088558404 |
|
25 ms | 198.41.0.4 |
| 20 | 2026-08-10 05:18 | 639219356348833255 |
|
8 ms | 198.41.0.4 |
| 19 | 2026-08-10 05:04 | 639219347860053478 |
|
41 ms | 198.41.0.4 |
| 18 | 2026-08-10 04:50 | 639219339173195121 |
|
23 ms | 198.41.0.4 |
| 17 | 2026-08-10 04:35 | 639219330642664669 |
|
32 ms | 198.41.0.4 |
| 16 | 2026-08-10 04:21 | 639219322058698995 |
|
39 ms | 198.41.0.4 |
| 15 | 2026-08-10 04:07 | 639219313564344199 |
|
3 ms | 198.41.0.4 |
| 14 | 2026-08-10 03:52 | 639219304775113236 |
|
9 ms | 198.41.0.4 |
| 13 | 2026-08-10 03:37 | 639219295706181119 |
|
27 ms | 198.41.0.4 |
| 12 | 2026-08-10 02:46 | 639219264663923254 |
|
46 ms | 198.41.0.4 |
| 11 | 2026-08-10 02:32 | 639219256015178099 |
|
38 ms | 198.41.0.4 |
| 10 | 2026-08-10 02:17 | 639219247509540188 |
|
19 ms | 198.41.0.4 |
| 9 | 2026-08-10 02:03 | 639219238999539092 |
|
2019 ms | 198.41.0.4 |
| 8 | 2026-08-10 01:49 | 639219230498823902 |
|
18 ms | 198.41.0.4 |
| 7 | 2026-08-10 01:34 | 639219221706460911 |
|
8 ms | 198.41.0.4 |
| 6 | 2026-08-10 01:20 | 639219212930606887 |
|
8 ms | 198.41.0.4 |
| 5 | 2026-08-10 01:05 | 639219204307908525 |
|
4 ms | 198.41.0.4 |
| 4 | 2026-08-10 00:51 | 639219195720181470 |
|
39 ms | 198.41.0.4 |
| 3 | 2026-08-10 00:36 | 639219186898174002 |
|
8 ms | 198.41.0.4 |
| 2 | 2026-08-10 00:22 | 639219178004946976 |
|
12 ms | 198.41.0.4 |
| 1 | 2026-08-10 00:06 | 639219168958805474 |
|
13 ms | 198.41.0.4 |