History for a.root-server.info
Domain: root-server.info • Tracking since 2026-08-04 23:25 UTC
DNS response history for a.root-server.info
a.root-server.info 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 2026-08-22. For this date, NameServerHistory found 74 DNS check records, 73 successful responses, 1 failed responses, and 267 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-server.info.
Records on Selected Date
74
Historical checks stored for this nameserver on selected date
Average Latency
267 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-22 23:52
All timestamps shown in UTC
Latest Resolved IP on Selected Date
217.160.177.66
Most recently resolved hosting IP on selected date
Successful Responses
73
Checks that returned a measurable response
Failed Responses
1
Checks with no response or no returned latency
Failure Rate
1%
Based on the selected date history
Selected Date Status
Responsive
At least one successful response exists on selected date
History for a.root-server.info
Showing DNS history for 2026-08-22 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 |
|---|---|---|---|---|---|
| 74 | 2026-08-22 23:52 | 639230391807229016 |
|
16 ms | 217.160.177.66 |
| 73 | 2026-08-22 23:36 | 639230382051619327 |
|
62 ms | 217.160.177.66 |
| 72 | 2026-08-22 23:19 | 639230372323353529 |
|
327 ms | 217.160.177.66 |
| 71 | 2026-08-22 23:03 | 639230362586451064 |
|
25 ms | 217.160.177.66 |
| 70 | 2026-08-22 22:47 | 639230352793666303 |
|
14 ms | 217.160.177.66 |
| 69 | 2026-08-22 22:30 | 639230342775737758 |
|
47 ms | 217.160.177.66 |
| 68 | 2026-08-22 22:13 | 639230332639939561 |
|
63 ms | 217.160.177.66 |
| 67 | 2026-08-22 21:21 | 639230301014190104 |
|
4 ms | 217.160.177.66 |
| 66 | 2026-08-22 21:04 | 639230291048161498 |
|
104 ms | 217.160.177.66 |
| 65 | 2026-08-22 20:47 | 639230280894353664 |
|
63 ms | 217.160.177.66 |
| 64 | 2026-08-22 20:30 | 639230270699419073 |
|
38 ms | 217.160.177.66 |
| 63 | 2026-08-22 20:13 | 639230260248163050 |
|
174 ms | 217.160.177.66 |
| 62 | 2026-08-22 19:56 | 639230250122494282 |
|
100 ms | 217.160.177.66 |
| 61 | 2026-08-22 19:39 | 639230239972935046 |
|
56 ms | 217.160.177.66 |
| 60 | 2026-08-22 19:22 | 639230229963262464 |
|
50 ms | 217.160.177.66 |
| 59 | 2026-08-22 19:05 | 639230220033804658 |
|
151 ms | 217.160.177.66 |
| 58 | 2026-08-22 18:49 | 639230209891107289 |
|
57 ms | 217.160.177.66 |
| 57 | 2026-08-22 18:32 | 639230199630298717 |
|
43 ms | 217.160.177.66 |
| 56 | 2026-08-22 18:14 | 639230189301984150 |
|
7 ms | 217.160.177.66 |
| 55 | 2026-08-22 17:21 | 639230157138468804 |
|
48 ms | 217.160.177.66 |
| 54 | 2026-08-22 17:04 | 639230146987869495 |
|
17 ms | 217.160.177.66 |
| 53 | 2026-08-22 16:47 | 639230136768638516 |
|
43 ms | 217.160.177.66 |
| 52 | 2026-08-22 16:30 | 639230126735907877 |
|
334 ms | 217.160.177.66 |
| 51 | 2026-08-22 16:13 | 639230116551187768 |
|
22 ms | 217.160.177.66 |
| 50 | 2026-08-22 15:56 | 639230106335615913 |
|
45 ms | 217.160.177.66 |
| 49 | 2026-08-22 15:39 | 639230096177758176 |
|
128 ms | 217.160.177.66 |
| 48 | 2026-08-22 15:22 | 639230086185999993 |
|
57 ms | 217.160.177.66 |
| 47 | 2026-08-22 15:06 | 639230076247854903 |
|
2318 ms | 217.160.177.66 |
| 46 | 2026-08-22 14:49 | 639230066076077530 |
|
42 ms | 217.160.177.66 |
| 45 | 2026-08-22 14:32 | 639230055738197328 |
|
60 ms | 217.160.177.66 |
| 44 | 2026-08-22 14:15 | 639230045411225521 |
|
23 ms | 217.160.177.66 |
| 43 | 2026-08-22 13:21 | 639230013046000470 |
|
2266 ms | 217.160.177.66 |
| 42 | 2026-08-22 13:04 | 639230003090037878 |
|
183 ms | 217.160.177.66 |
| 41 | 2026-08-22 12:47 | 639229993008259475 |
|
2029 ms | 217.160.177.66 |
| 40 | 2026-08-22 12:30 | 639229982909449470 |
|
87 ms | 217.160.177.66 |
| 39 | 2026-08-22 12:14 | 639229973035502212 |
|
7 ms | 217.160.177.66 |
| 38 | 2026-08-22 11:57 | 639229963064296145 |
|
46 ms | 217.160.177.66 |
| 37 | 2026-08-22 11:41 | 639229952996162143 |
|
48 ms | 217.160.177.66 |
| 36 | 2026-08-22 11:24 | 639229943051949195 |
|
24 ms | 217.160.177.66 |
| 35 | 2026-08-22 11:07 | 639229932919214934 |
|
9 ms | 217.160.177.66 |
| 34 | 2026-08-22 10:50 | 639229922745889838 |
|
29 ms | 217.160.177.66 |
| 33 | 2026-08-22 10:33 | 639229912587214796 |
|
249 ms | 217.160.177.66 |
| 32 | 2026-08-22 10:16 | 639229902240004454 |
|
4236 ms | 217.160.177.66 |
| 31 | 2026-08-22 09:24 | 639229870800501662 |
|
167 ms | 217.160.177.66 |
| 30 | 2026-08-22 09:07 | 639229861058384956 |
|
87 ms | 217.160.177.66 |
| 29 | 2026-08-22 08:51 | 639229851158592604 |
|
199 ms | 217.160.177.66 |
| 28 | 2026-08-22 08:35 | 639229841475569629 |
|
6 ms | 217.160.177.66 |
| 27 | 2026-08-22 08:19 | 639229831887658471 |
|
16 ms | 217.160.177.66 |
| 26 | 2026-08-22 08:02 | 639229822043670346 |
|
35 ms | 217.160.177.66 |
| 25 | 2026-08-22 07:46 | 639229812327913936 |
|
173 ms | 217.160.177.66 |
| 24 | 2026-08-22 07:30 | 639229802629488686 |
|
51 ms | 217.160.177.66 |
| 23 | 2026-08-22 07:14 | 639229793051447309 |
|
8 ms | 217.160.177.66 |
| 22 | 2026-08-22 06:58 | 639229783303531961 |
|
10 ms | 217.160.177.66 |
| 21 | 2026-08-22 06:41 | 639229773458051942 |
|
31 ms | 217.160.177.66 |
| 20 | 2026-08-22 06:25 | 639229763373848056 |
|
30 ms | 217.160.177.66 |
| 19 | 2026-08-22 05:33 | 639229732140622809 |
|
7 ms | 217.160.177.66 |
| 18 | 2026-08-22 05:17 | 639229722699695967 |
|
192 ms | 217.160.177.66 |
| 17 | 2026-08-22 05:01 | 639229713097498075 |
|
27 ms | 217.160.177.66 |
| 16 | 2026-08-22 04:45 | 639229703543969637 |
|
2011 ms | 217.160.177.66 |
| 15 | 2026-08-22 04:29 | 639229693970392873 |
|
173 ms | 217.160.177.66 |
| 14 | 2026-08-22 04:13 | 639229684277329469 |
|
34 ms | 217.160.177.66 |
| 13 | 2026-08-22 03:57 | 639229674501596661 |
|
- | |
| 12 | 2026-08-22 03:41 | 639229665064441147 |
|
3 ms | 217.160.177.66 |
| 11 | 2026-08-22 03:25 | 639229655507536872 |
|
7 ms | 217.160.177.66 |
| 10 | 2026-08-22 03:09 | 639229645849603111 |
|
46 ms | 217.160.177.66 |
| 9 | 2026-08-22 02:52 | 639229636090497453 |
|
6 ms | 217.160.177.66 |
| 8 | 2026-08-22 02:36 | 639229625978544281 |
|
2047 ms | 217.160.177.66 |
| 7 | 2026-08-22 01:43 | 639229594644662176 |
|
9 ms | 217.160.177.66 |
| 6 | 2026-08-22 01:28 | 639229585214633065 |
|
179 ms | 217.160.177.66 |
| 5 | 2026-08-22 01:11 | 639229575581042175 |
|
35 ms | 217.160.177.66 |
| 4 | 2026-08-22 00:55 | 639229565912268962 |
|
47 ms | 217.160.177.66 |
| 3 | 2026-08-22 00:39 | 639229556237813203 |
|
52 ms | 217.160.177.66 |
| 2 | 2026-08-22 00:23 | 639229546625802518 |
|
40 ms | 217.160.177.66 |
| 1 | 2026-08-22 00:07 | 639229537172016621 |
|
13 ms | 217.160.177.66 |