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 2026-08-16. For this date, NameServerHistory found 60 DNS check records, 60 successful responses, 0 failed responses, and 192 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
60
Historical checks stored for this nameserver on selected date
Average Latency
192 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-16 23:51
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
60
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-server.info
Showing DNS history for 2026-08-16 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 |
|---|---|---|---|---|---|
| 60 | 2026-08-16 23:51 | 639225207490611656 |
|
35 ms | 217.160.177.66 |
| 59 | 2026-08-16 23:35 | 639225198045815385 |
|
42 ms | 217.160.177.66 |
| 58 | 2026-08-16 22:43 | 639225166825544741 |
|
357 ms | 217.160.177.66 |
| 57 | 2026-08-16 22:28 | 639225157549461269 |
|
30 ms | 217.160.177.66 |
| 56 | 2026-08-16 22:12 | 639225147914556308 |
|
21 ms | 217.160.177.66 |
| 55 | 2026-08-16 21:56 | 639225138472322960 |
|
38 ms | 217.160.177.66 |
| 54 | 2026-08-16 21:04 | 639225107211236826 |
|
336 ms | 217.160.177.66 |
| 53 | 2026-08-16 20:48 | 639225097684457510 |
|
194 ms | 217.160.177.66 |
| 52 | 2026-08-16 20:32 | 639225087942913396 |
|
47 ms | 217.160.177.66 |
| 51 | 2026-08-16 20:16 | 639225078238684183 |
|
2007 ms | 217.160.177.66 |
| 50 | 2026-08-16 19:24 | 639225046944151094 |
|
57 ms | 217.160.177.66 |
| 49 | 2026-08-16 19:08 | 639225037234857231 |
|
35 ms | 217.160.177.66 |
| 48 | 2026-08-16 18:51 | 639225027423459920 |
|
100 ms | 217.160.177.66 |
| 47 | 2026-08-16 18:35 | 639225017891613027 |
|
11 ms | 217.160.177.66 |
| 46 | 2026-08-16 17:43 | 639224986298183527 |
|
7 ms | 217.160.177.66 |
| 45 | 2026-08-16 17:27 | 639224976567107023 |
|
56 ms | 217.160.177.66 |
| 44 | 2026-08-16 17:11 | 639224966709723386 |
|
77 ms | 217.160.177.66 |
| 43 | 2026-08-16 16:54 | 639224957175756942 |
|
40 ms | 217.160.177.66 |
| 42 | 2026-08-16 16:02 | 639224925782379869 |
|
74 ms | 217.160.177.66 |
| 41 | 2026-08-16 15:46 | 639224916429532459 |
|
47 ms | 217.160.177.66 |
| 40 | 2026-08-16 15:31 | 639224906878325623 |
|
171 ms | 217.160.177.66 |
| 39 | 2026-08-16 15:15 | 639224897258974385 |
|
59 ms | 217.160.177.66 |
| 38 | 2026-08-16 14:23 | 639224866169532828 |
|
30 ms | 217.160.177.66 |
| 37 | 2026-08-16 14:07 | 639224856561831915 |
|
69 ms | 217.160.177.66 |
| 36 | 2026-08-16 13:50 | 639224846830897794 |
|
31 ms | 217.160.177.66 |
| 35 | 2026-08-16 13:34 | 639224836975863283 |
|
41 ms | 217.160.177.66 |
| 34 | 2026-08-16 12:42 | 639224804985340946 |
|
34 ms | 217.160.177.66 |
| 33 | 2026-08-16 12:26 | 639224795567782333 |
|
40 ms | 217.160.177.66 |
| 32 | 2026-08-16 12:10 | 639224785914225250 |
|
45 ms | 217.160.177.66 |
| 31 | 2026-08-16 11:54 | 639224776383854998 |
|
21 ms | 217.160.177.66 |
| 30 | 2026-08-16 11:01 | 639224744252113993 |
|
56 ms | 217.160.177.66 |
| 29 | 2026-08-16 10:44 | 639224734238905542 |
|
5 ms | 217.160.177.66 |
| 28 | 2026-08-16 10:28 | 639224724335031221 |
|
45 ms | 217.160.177.66 |
| 27 | 2026-08-16 10:11 | 639224714475244430 |
|
8 ms | 217.160.177.66 |
| 26 | 2026-08-16 09:15 | 639224681063874153 |
|
50 ms | 217.160.177.66 |
| 25 | 2026-08-16 08:59 | 639224671038956665 |
|
17 ms | 217.160.177.66 |
| 24 | 2026-08-16 08:42 | 639224661079806122 |
|
56 ms | 217.160.177.66 |
| 23 | 2026-08-16 08:25 | 639224651169993038 |
|
45 ms | 217.160.177.66 |
| 22 | 2026-08-16 07:31 | 639224618882283050 |
|
24 ms | 217.160.177.66 |
| 21 | 2026-08-16 07:16 | 639224609519965372 |
|
2027 ms | 217.160.177.66 |
| 20 | 2026-08-16 07:00 | 639224599969658888 |
|
28 ms | 217.160.177.66 |
| 19 | 2026-08-16 06:44 | 639224590360343307 |
|
345 ms | 217.160.177.66 |
| 18 | 2026-08-16 05:52 | 639224558901831832 |
|
22 ms | 217.160.177.66 |
| 17 | 2026-08-16 05:36 | 639224549678210576 |
|
203 ms | 217.160.177.66 |
| 16 | 2026-08-16 05:21 | 639224540433420642 |
|
2 ms | 217.160.177.66 |
| 15 | 2026-08-16 05:05 | 639224531046032443 |
|
5 ms | 217.160.177.66 |
| 14 | 2026-08-16 04:13 | 639224499638024410 |
|
18 ms | 217.160.177.66 |
| 13 | 2026-08-16 03:57 | 639224490358783451 |
|
64 ms | 217.160.177.66 |
| 12 | 2026-08-16 03:42 | 639224481111410545 |
|
36 ms | 217.160.177.66 |
| 11 | 2026-08-16 03:26 | 639224471809153772 |
|
51 ms | 217.160.177.66 |
| 10 | 2026-08-16 02:33 | 639224440124457324 |
|
99 ms | 217.160.177.66 |
| 9 | 2026-08-16 02:18 | 639224430921105721 |
|
40 ms | 217.160.177.66 |
| 8 | 2026-08-16 02:03 | 639224421455433103 |
|
1533 ms | 217.160.177.66 |
| 7 | 2026-08-16 01:47 | 639224412089740331 |
|
26 ms | 217.160.177.66 |
| 6 | 2026-08-16 01:31 | 639224403168392868 |
|
189 ms | 217.160.177.66 |
| 5 | 2026-08-16 01:16 | 639224393856251387 |
|
37 ms | 217.160.177.66 |
| 4 | 2026-08-16 01:01 | 639224384677141438 |
|
32 ms | 217.160.177.66 |
| 3 | 2026-08-16 00:46 | 639224375597986398 |
|
2216 ms | 217.160.177.66 |
| 2 | 2026-08-16 00:30 | 639224366430296466 |
|
16 ms | 217.160.177.66 |
| 1 | 2026-08-16 00:15 | 639224357218176789 |
|
96 ms | 217.160.177.66 |