History for a.root--servers.com
Domain: root--servers.com • Tracking since 2026-08-04 23:25 UTC
DNS response history for a.root--servers.com
a.root--servers.com 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 81 DNS check records, 81 successful responses, 0 failed responses, and 347 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.com.
Records on Selected Date
81
Historical checks stored for this nameserver on selected date
Average Latency
347 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-10 23:49
All timestamps shown in UTC
Latest Resolved IP on Selected Date
198.144.183.102
Most recently resolved hosting IP on selected date
Successful Responses
81
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.com
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 |
|---|---|---|---|---|---|
| 81 | 2026-08-10 23:49 | 639220018272941900 |
|
253 ms | 198.144.183.102 |
| 80 | 2026-08-10 23:33 | 639220009109892969 |
|
3 ms | 198.144.183.102 |
| 79 | 2026-08-10 23:18 | 639220000040489788 |
|
1628 ms | 198.144.183.102 |
| 78 | 2026-08-10 23:03 | 639219991197135747 |
|
234 ms | 198.144.183.102 |
| 77 | 2026-08-10 22:48 | 639219982104540014 |
|
234 ms | 198.144.183.102 |
| 76 | 2026-08-10 22:33 | 639219973150300215 |
|
113 ms | 198.144.183.102 |
| 75 | 2026-08-10 22:18 | 639219964188486697 |
|
116 ms | 198.144.183.102 |
| 74 | 2026-08-10 22:03 | 639219954995921784 |
|
139 ms | 198.144.183.102 |
| 73 | 2026-08-10 21:48 | 639219945559908104 |
|
124 ms | 198.144.183.102 |
| 72 | 2026-08-10 20:55 | 639219914137782273 |
|
114 ms | 198.144.183.102 |
| 71 | 2026-08-10 20:40 | 639219904858355064 |
|
114 ms | 198.144.183.102 |
| 70 | 2026-08-10 20:24 | 639219895655263396 |
|
821 ms | 198.144.183.102 |
| 69 | 2026-08-10 20:09 | 639219886527091074 |
|
4 ms | 198.144.183.102 |
| 68 | 2026-08-10 19:54 | 639219877343266628 |
|
115 ms | 198.144.183.102 |
| 67 | 2026-08-10 19:39 | 639219868177358195 |
|
116 ms | 198.144.183.102 |
| 66 | 2026-08-10 19:23 | 639219859159581515 |
|
242 ms | 198.144.183.102 |
| 65 | 2026-08-10 19:08 | 639219850124020182 |
|
287 ms | 198.144.183.102 |
| 64 | 2026-08-10 18:53 | 639219840940124840 |
|
117 ms | 198.144.183.102 |
| 63 | 2026-08-10 18:38 | 639219831829876486 |
|
1631 ms | 198.144.183.102 |
| 62 | 2026-08-10 18:22 | 639219822587759143 |
|
7 ms | 198.144.183.102 |
| 61 | 2026-08-10 18:07 | 639219813247114428 |
|
133 ms | 198.144.183.102 |
| 60 | 2026-08-10 17:15 | 639219781959606396 |
|
364 ms | 198.144.183.102 |
| 59 | 2026-08-10 17:00 | 639219772658305431 |
|
248 ms | 198.144.183.102 |
| 58 | 2026-08-10 16:44 | 639219763454523027 |
|
119 ms | 198.144.183.102 |
| 57 | 2026-08-10 16:29 | 639219754279127815 |
|
173 ms | 198.144.183.102 |
| 56 | 2026-08-10 16:14 | 639219745087467767 |
|
697 ms | 198.144.183.102 |
| 55 | 2026-08-10 15:58 | 639219735900678107 |
|
5 ms | 198.144.183.102 |
| 54 | 2026-08-10 15:43 | 639219726531461979 |
|
278 ms | 198.144.183.102 |
| 53 | 2026-08-10 15:27 | 639219717415222156 |
|
248 ms | 198.144.183.102 |
| 52 | 2026-08-10 15:12 | 639219708266470863 |
|
113 ms | 198.144.183.102 |
| 51 | 2026-08-10 14:57 | 639219699049479559 |
|
130 ms | 198.144.183.102 |
| 50 | 2026-08-10 14:41 | 639219689775815194 |
|
406 ms | 198.144.183.102 |
| 49 | 2026-08-10 14:26 | 639219680511810632 |
|
247 ms | 198.144.183.102 |
| 48 | 2026-08-10 13:34 | 639219648997191257 |
|
247 ms | 198.144.183.102 |
| 47 | 2026-08-10 13:19 | 639219639938909436 |
|
236 ms | 198.144.183.102 |
| 46 | 2026-08-10 13:03 | 639219630718286441 |
|
115 ms | 198.144.183.102 |
| 45 | 2026-08-10 12:48 | 639219621472350410 |
|
234 ms | 198.144.183.102 |
| 44 | 2026-08-10 12:33 | 639219612500421992 |
|
236 ms | 198.144.183.102 |
| 43 | 2026-08-10 12:18 | 639219603383833445 |
|
231 ms | 198.144.183.102 |
| 42 | 2026-08-10 12:02 | 639219594143823358 |
|
246 ms | 198.144.183.102 |
| 41 | 2026-08-10 11:47 | 639219585053166024 |
|
819 ms | 198.144.183.102 |
| 40 | 2026-08-10 11:32 | 639219575885776644 |
|
110 ms | 198.144.183.102 |
| 39 | 2026-08-10 11:17 | 639219566844532361 |
|
116 ms | 198.144.183.102 |
| 38 | 2026-08-10 11:01 | 639219557705808294 |
|
108 ms | 198.144.183.102 |
| 37 | 2026-08-10 10:46 | 639219548482688649 |
|
247 ms | 198.144.183.102 |
| 36 | 2026-08-10 09:55 | 639219517492763539 |
|
242 ms | 198.144.183.102 |
| 35 | 2026-08-10 09:40 | 639219508755773605 |
|
240 ms | 198.144.183.102 |
| 34 | 2026-08-10 09:25 | 639219499852103863 |
|
8 ms | 198.144.183.102 |
| 33 | 2026-08-10 09:10 | 639219490893714387 |
|
6 ms | 198.144.183.102 |
| 32 | 2026-08-10 08:56 | 639219482299305521 |
|
4 ms | 198.144.183.102 |
| 31 | 2026-08-10 08:41 | 639219473613114853 |
|
3 ms | 198.144.183.102 |
| 30 | 2026-08-10 08:27 | 639219465061138643 |
|
239 ms | 198.144.183.102 |
| 29 | 2026-08-10 08:13 | 639219456616129015 |
|
36 ms | 198.144.183.102 |
| 28 | 2026-08-10 07:58 | 639219447974008557 |
|
133 ms | 198.144.183.102 |
| 27 | 2026-08-10 07:44 | 639219439498255213 |
|
109 ms | 198.144.183.102 |
| 26 | 2026-08-10 07:30 | 639219430664872256 |
|
233 ms | 198.144.183.102 |
| 25 | 2026-08-10 07:15 | 639219421757560037 |
|
254 ms | 198.144.183.102 |
| 24 | 2026-08-10 06:23 | 639219390773218684 |
|
112 ms | 198.144.183.102 |
| 23 | 2026-08-10 06:08 | 639219382205367722 |
|
4 ms | 198.144.183.102 |
| 22 | 2026-08-10 05:54 | 639219373711937615 |
|
220 ms | 198.144.183.102 |
| 21 | 2026-08-10 05:40 | 639219365088558404 |
|
123 ms | 198.144.183.102 |
| 20 | 2026-08-10 05:25 | 639219356348833255 |
|
111 ms | 198.144.183.102 |
| 19 | 2026-08-10 05:11 | 639219347860053478 |
|
244 ms | 198.144.183.102 |
| 18 | 2026-08-10 04:57 | 639219339173195121 |
|
21 ms | 198.144.183.102 |
| 17 | 2026-08-10 04:42 | 639219330642664669 |
|
240 ms | 198.144.183.102 |
| 16 | 2026-08-10 04:28 | 639219322058698995 |
|
1637 ms | 198.144.183.102 |
| 15 | 2026-08-10 04:14 | 639219313564344199 |
|
3820 ms | 198.144.183.102 |
| 14 | 2026-08-10 03:59 | 639219304775113236 |
|
3728 ms | 198.144.183.102 |
| 13 | 2026-08-10 03:44 | 639219295706181119 |
|
1691 ms | 198.144.183.102 |
| 12 | 2026-08-10 02:53 | 639219264663923254 |
|
32 ms | 198.144.183.102 |
| 11 | 2026-08-10 02:38 | 639219256015178099 |
|
241 ms | 198.144.183.102 |
| 10 | 2026-08-10 02:24 | 639219247509540188 |
|
132 ms | 198.144.183.102 |
| 9 | 2026-08-10 02:10 | 639219238999539092 |
|
269 ms | 198.144.183.102 |
| 8 | 2026-08-10 01:55 | 639219230498823902 |
|
283 ms | 198.144.183.102 |
| 7 | 2026-08-10 01:41 | 639219221706460911 |
|
120 ms | 198.144.183.102 |
| 6 | 2026-08-10 01:26 | 639219212930606887 |
|
293 ms | 198.144.183.102 |
| 5 | 2026-08-10 01:12 | 639219204307908525 |
|
114 ms | 198.144.183.102 |
| 4 | 2026-08-10 00:58 | 639219195720181470 |
|
4 ms | 198.144.183.102 |
| 3 | 2026-08-10 00:43 | 639219186898174002 |
|
110 ms | 198.144.183.102 |
| 2 | 2026-08-10 00:28 | 639219178004946976 |
|
251 ms | 198.144.183.102 |
| 1 | 2026-08-10 00:13 | 639219168958805474 |
|
268 ms | 198.144.183.102 |