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 2026-08-26. For this date, NameServerHistory found 71 DNS check records, 71 successful responses, 0 failed responses, and 442 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
71
Historical checks stored for this nameserver on selected date
Average Latency
442 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-26 23:57
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
71
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 2026-08-26 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 |
|---|---|---|---|---|---|
| 71 | 2026-08-26 23:57 | 639233846871926285 |
|
257 ms | 198.144.183.102 |
| 70 | 2026-08-26 23:03 | 639233814527872887 |
|
119 ms | 198.144.183.102 |
| 69 | 2026-08-26 22:45 | 639233804315489381 |
|
120 ms | 198.144.183.102 |
| 68 | 2026-08-26 22:28 | 639233793971346256 |
|
275 ms | 198.144.183.102 |
| 67 | 2026-08-26 22:11 | 639233783644630463 |
|
743 ms | 198.144.183.102 |
| 66 | 2026-08-26 21:54 | 639233773302621314 |
|
135 ms | 198.144.183.102 |
| 65 | 2026-08-26 21:37 | 639233762896723748 |
|
106 ms | 198.144.183.102 |
| 64 | 2026-08-26 21:19 | 639233752543876329 |
|
113 ms | 198.144.183.102 |
| 63 | 2026-08-26 21:02 | 639233742155931788 |
|
128 ms | 198.144.183.102 |
| 62 | 2026-08-26 20:45 | 639233731712555311 |
|
114 ms | 198.144.183.102 |
| 61 | 2026-08-26 20:27 | 639233721164051126 |
|
1448 ms | 198.144.183.102 |
| 60 | 2026-08-26 20:09 | 639233710560486320 |
|
268 ms | 198.144.183.102 |
| 59 | 2026-08-26 19:52 | 639233699834667450 |
|
713 ms | 198.144.183.102 |
| 58 | 2026-08-26 18:57 | 639233667209186136 |
|
121 ms | 198.144.183.102 |
| 57 | 2026-08-26 18:40 | 639233656814316266 |
|
147 ms | 198.144.183.102 |
| 56 | 2026-08-26 18:22 | 639233646245051806 |
|
146 ms | 198.144.183.102 |
| 55 | 2026-08-26 18:05 | 639233635663779051 |
|
146 ms | 198.144.183.102 |
| 54 | 2026-08-26 17:47 | 639233624977342122 |
|
3716 ms | 198.144.183.102 |
| 53 | 2026-08-26 17:29 | 639233614446136153 |
|
242 ms | 198.144.183.102 |
| 52 | 2026-08-26 17:11 | 639233603737877581 |
|
822 ms | 198.144.183.102 |
| 51 | 2026-08-26 16:54 | 639233593269224651 |
|
271 ms | 198.144.183.102 |
| 50 | 2026-08-26 16:36 | 639233582635086903 |
|
128 ms | 198.144.183.102 |
| 49 | 2026-08-26 16:19 | 639233572000374575 |
|
148 ms | 198.144.183.102 |
| 48 | 2026-08-26 16:01 | 639233561188633861 |
|
277 ms | 198.144.183.102 |
| 47 | 2026-08-26 15:43 | 639233550544357027 |
|
116 ms | 198.144.183.102 |
| 46 | 2026-08-26 14:48 | 639233517966053117 |
|
116 ms | 198.144.183.102 |
| 45 | 2026-08-26 14:31 | 639233507603253585 |
|
121 ms | 198.144.183.102 |
| 44 | 2026-08-26 14:14 | 639233497229039167 |
|
244 ms | 198.144.183.102 |
| 43 | 2026-08-26 13:56 | 639233486864546406 |
|
110 ms | 198.144.183.102 |
| 42 | 2026-08-26 13:39 | 639233476455174682 |
|
253 ms | 198.144.183.102 |
| 41 | 2026-08-26 13:22 | 639233466171592605 |
|
2109 ms | 198.144.183.102 |
| 40 | 2026-08-26 13:05 | 639233455747096265 |
|
112 ms | 198.144.183.102 |
| 39 | 2026-08-26 12:47 | 639233445367152284 |
|
123 ms | 198.144.183.102 |
| 38 | 2026-08-26 12:30 | 639233434974187439 |
|
243 ms | 198.144.183.102 |
| 37 | 2026-08-26 12:13 | 639233424567558554 |
|
4 ms | 198.144.183.102 |
| 36 | 2026-08-26 11:55 | 639233414056832719 |
|
119 ms | 198.144.183.102 |
| 35 | 2026-08-26 11:38 | 639233403515141099 |
|
116 ms | 198.144.183.102 |
| 34 | 2026-08-26 10:43 | 639233370841350248 |
|
260 ms | 198.144.183.102 |
| 33 | 2026-08-26 10:26 | 639233360361507238 |
|
110 ms | 198.144.183.102 |
| 32 | 2026-08-26 10:08 | 639233350067824371 |
|
258 ms | 198.144.183.102 |
| 31 | 2026-08-26 09:51 | 639233339545274518 |
|
4152 ms | 198.144.183.102 |
| 30 | 2026-08-26 09:34 | 639233329214918079 |
|
840 ms | 198.144.183.102 |
| 29 | 2026-08-26 09:16 | 639233318749762337 |
|
114 ms | 198.144.183.102 |
| 28 | 2026-08-26 08:59 | 639233308387917838 |
|
260 ms | 198.144.183.102 |
| 27 | 2026-08-26 08:42 | 639233297961740122 |
|
249 ms | 198.144.183.102 |
| 26 | 2026-08-26 08:24 | 639233287487159094 |
|
114 ms | 198.144.183.102 |
| 25 | 2026-08-26 08:07 | 639233276995531707 |
|
113 ms | 198.144.183.102 |
| 24 | 2026-08-26 07:49 | 639233266521568229 |
|
125 ms | 198.144.183.102 |
| 23 | 2026-08-26 07:32 | 639233256081047431 |
|
260 ms | 198.144.183.102 |
| 22 | 2026-08-26 06:38 | 639233223620132921 |
|
111 ms | 198.144.183.102 |
| 21 | 2026-08-26 06:20 | 639233213287814244 |
|
112 ms | 198.144.183.102 |
| 20 | 2026-08-26 06:03 | 639233202925983161 |
|
253 ms | 198.144.183.102 |
| 19 | 2026-08-26 05:46 | 639233192644780696 |
|
110 ms | 198.144.183.102 |
| 18 | 2026-08-26 05:29 | 639233182401183833 |
|
115 ms | 198.144.183.102 |
| 17 | 2026-08-26 05:12 | 639233172074181051 |
|
125 ms | 198.144.183.102 |
| 16 | 2026-08-26 04:55 | 639233161808421455 |
|
263 ms | 198.144.183.102 |
| 15 | 2026-08-26 04:37 | 639233151357344052 |
|
256 ms | 198.144.183.102 |
| 14 | 2026-08-26 04:20 | 639233141034116946 |
|
245 ms | 198.144.183.102 |
| 13 | 2026-08-26 04:03 | 639233130828334142 |
|
131 ms | 198.144.183.102 |
| 12 | 2026-08-26 03:46 | 639233120373450007 |
|
115 ms | 198.144.183.102 |
| 11 | 2026-08-26 03:28 | 639233110066216193 |
|
237 ms | 198.144.183.102 |
| 10 | 2026-08-26 02:35 | 639233078065410564 |
|
259 ms | 198.144.183.102 |
| 9 | 2026-08-26 02:18 | 639233067787457832 |
|
260 ms | 198.144.183.102 |
| 8 | 2026-08-26 02:01 | 639233057501801162 |
|
255 ms | 198.144.183.102 |
| 7 | 2026-08-26 01:44 | 639233047089431703 |
|
128 ms | 198.144.183.102 |
| 6 | 2026-08-26 01:26 | 639233036754790688 |
|
4138 ms | 198.144.183.102 |
| 5 | 2026-08-26 01:09 | 639233026412602472 |
|
213 ms | 198.144.183.102 |
| 4 | 2026-08-26 00:52 | 639233016064066127 |
|
246 ms | 198.144.183.102 |
| 3 | 2026-08-26 00:35 | 639233005922655772 |
|
2119 ms | 198.144.183.102 |
| 2 | 2026-08-26 00:18 | 639232995672256907 |
|
254 ms | 198.144.183.102 |
| 1 | 2026-08-26 00:01 | 639232985300872416 |
|
118 ms | 198.144.183.102 |