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 2026-08-23. For this date, NameServerHistory found 75 DNS check records, 75 successful responses, 0 failed responses, and 191 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
75
Historical checks stored for this nameserver on selected date
Average Latency
191 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-23 23:50
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
75
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 2026-08-23 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 |
|---|---|---|---|---|---|
| 75 | 2026-08-23 23:50 | 639231254406598736 |
|
48 ms | 217.160.177.66 |
| 74 | 2026-08-23 23:33 | 639231244697865594 |
|
65 ms | 217.160.177.66 |
| 73 | 2026-08-23 23:17 | 639231234893504693 |
|
5 ms | 217.160.177.66 |
| 72 | 2026-08-23 23:01 | 639231225024549139 |
|
20 ms | 217.160.177.66 |
| 71 | 2026-08-23 22:44 | 639231214931957622 |
|
42 ms | 217.160.177.66 |
| 70 | 2026-08-23 22:27 | 639231204962010549 |
|
8 ms | 217.160.177.66 |
| 69 | 2026-08-23 22:11 | 639231195170138463 |
|
3 ms | 217.160.177.66 |
| 68 | 2026-08-23 21:54 | 639231185235020577 |
|
8 ms | 217.160.177.66 |
| 67 | 2026-08-23 21:38 | 639231175558690075 |
|
2008 ms | 217.160.177.66 |
| 66 | 2026-08-23 21:21 | 639231165610444012 |
|
50 ms | 217.160.177.66 |
| 65 | 2026-08-23 20:29 | 639231133806425363 |
|
16 ms | 217.160.177.66 |
| 64 | 2026-08-23 20:13 | 639231124203758023 |
|
2039 ms | 217.160.177.66 |
| 63 | 2026-08-23 19:56 | 639231114428262706 |
|
7 ms | 217.160.177.66 |
| 62 | 2026-08-23 19:40 | 639231104662480065 |
|
49 ms | 217.160.177.66 |
| 61 | 2026-08-23 19:24 | 639231094840372018 |
|
55 ms | 217.160.177.66 |
| 60 | 2026-08-23 19:07 | 639231085024583224 |
|
20 ms | 217.160.177.66 |
| 59 | 2026-08-23 18:51 | 639231075257417427 |
|
193 ms | 217.160.177.66 |
| 58 | 2026-08-23 18:35 | 639231065516009503 |
|
66 ms | 217.160.177.66 |
| 57 | 2026-08-23 18:19 | 639231055805348837 |
|
282 ms | 217.160.177.66 |
| 56 | 2026-08-23 18:02 | 639231045980373765 |
|
44 ms | 217.160.177.66 |
| 55 | 2026-08-23 17:46 | 639231035984577527 |
|
526 ms | 217.160.177.66 |
| 54 | 2026-08-23 17:29 | 639231025928115303 |
|
47 ms | 217.160.177.66 |
| 53 | 2026-08-23 16:36 | 639230994250157583 |
|
30 ms | 217.160.177.66 |
| 52 | 2026-08-23 16:20 | 639230984476411369 |
|
5 ms | 217.160.177.66 |
| 51 | 2026-08-23 16:04 | 639230974838373450 |
|
3 ms | 217.160.177.66 |
| 50 | 2026-08-23 15:48 | 639230965244277645 |
|
17 ms | 217.160.177.66 |
| 49 | 2026-08-23 15:31 | 639230955522101820 |
|
53 ms | 217.160.177.66 |
| 48 | 2026-08-23 15:15 | 639230945754521603 |
|
35 ms | 217.160.177.66 |
| 47 | 2026-08-23 14:59 | 639230935852040504 |
|
17 ms | 217.160.177.66 |
| 46 | 2026-08-23 14:43 | 639230926222061048 |
|
57 ms | 217.160.177.66 |
| 45 | 2026-08-23 14:26 | 639230916449726907 |
|
74 ms | 217.160.177.66 |
| 44 | 2026-08-23 14:10 | 639230906595053086 |
|
47 ms | 217.160.177.66 |
| 43 | 2026-08-23 13:53 | 639230896680429441 |
|
36 ms | 217.160.177.66 |
| 42 | 2026-08-23 13:37 | 639230886630210965 |
|
137 ms | 217.160.177.66 |
| 41 | 2026-08-23 12:45 | 639230855430405719 |
|
34 ms | 217.160.177.66 |
| 40 | 2026-08-23 12:28 | 639230845707499136 |
|
25 ms | 217.160.177.66 |
| 39 | 2026-08-23 12:13 | 639230836186805419 |
|
4 ms | 217.160.177.66 |
| 38 | 2026-08-23 11:56 | 639230826493828316 |
|
3 ms | 217.160.177.66 |
| 37 | 2026-08-23 11:40 | 639230816817882996 |
|
2025 ms | 217.160.177.66 |
| 36 | 2026-08-23 11:24 | 639230806933854189 |
|
36 ms | 217.160.177.66 |
| 35 | 2026-08-23 11:07 | 639230797120243854 |
|
40 ms | 217.160.177.66 |
| 34 | 2026-08-23 10:51 | 639230787310272840 |
|
37 ms | 217.160.177.66 |
| 33 | 2026-08-23 10:35 | 639230777600173142 |
|
98 ms | 217.160.177.66 |
| 32 | 2026-08-23 10:18 | 639230767665024593 |
|
37 ms | 217.160.177.66 |
| 31 | 2026-08-23 10:02 | 639230757720962293 |
|
2327 ms | 217.160.177.66 |
| 30 | 2026-08-23 09:45 | 639230747722189784 |
|
10 ms | 217.160.177.66 |
| 29 | 2026-08-23 08:53 | 639230716313923480 |
|
9 ms | 217.160.177.66 |
| 28 | 2026-08-23 08:37 | 639230706813835990 |
|
9 ms | 217.160.177.66 |
| 27 | 2026-08-23 08:20 | 639230696871062203 |
|
18 ms | 217.160.177.66 |
| 26 | 2026-08-23 08:04 | 639230687142781616 |
|
4 ms | 217.160.177.66 |
| 25 | 2026-08-23 07:48 | 639230677432142227 |
|
18 ms | 217.160.177.66 |
| 24 | 2026-08-23 07:32 | 639230667686258061 |
|
32 ms | 217.160.177.66 |
| 23 | 2026-08-23 07:16 | 639230658039243685 |
|
35 ms | 217.160.177.66 |
| 22 | 2026-08-23 07:00 | 639230648468473803 |
|
212 ms | 217.160.177.66 |
| 21 | 2026-08-23 06:44 | 639230638829658294 |
|
8 ms | 217.160.177.66 |
| 20 | 2026-08-23 06:28 | 639230629247017617 |
|
18 ms | 217.160.177.66 |
| 19 | 2026-08-23 06:12 | 639230619625318239 |
|
51 ms | 217.160.177.66 |
| 18 | 2026-08-23 05:55 | 639230609697630264 |
|
50 ms | 217.160.177.66 |
| 17 | 2026-08-23 05:03 | 639230578570131864 |
|
34 ms | 217.160.177.66 |
| 16 | 2026-08-23 04:47 | 639230568958963168 |
|
245 ms | 217.160.177.66 |
| 15 | 2026-08-23 04:31 | 639230559287611211 |
|
2 ms | 217.160.177.66 |
| 14 | 2026-08-23 04:15 | 639230549524312030 |
|
38 ms | 217.160.177.66 |
| 13 | 2026-08-23 03:59 | 639230539739801669 |
|
2023 ms | 217.160.177.66 |
| 12 | 2026-08-23 03:42 | 639230530084069375 |
|
197 ms | 217.160.177.66 |
| 11 | 2026-08-23 03:26 | 639230520362691441 |
|
37 ms | 217.160.177.66 |
| 10 | 2026-08-23 03:10 | 639230510677194518 |
|
43 ms | 217.160.177.66 |
| 9 | 2026-08-23 02:54 | 639230501156002646 |
|
52 ms | 217.160.177.66 |
| 8 | 2026-08-23 02:38 | 639230491502198541 |
|
2 ms | 217.160.177.66 |
| 7 | 2026-08-23 02:22 | 639230481860318494 |
|
3 ms | 217.160.177.66 |
| 6 | 2026-08-23 02:05 | 639230471893008575 |
|
39 ms | 217.160.177.66 |
| 5 | 2026-08-23 01:12 | 639230440030877421 |
|
178 ms | 217.160.177.66 |
| 4 | 2026-08-23 00:56 | 639230430479725508 |
|
63 ms | 217.160.177.66 |
| 3 | 2026-08-23 00:40 | 639230420875160219 |
|
25 ms | 217.160.177.66 |
| 2 | 2026-08-23 00:24 | 639230411240692575 |
|
42 ms | 217.160.177.66 |
| 1 | 2026-08-23 00:08 | 639230401550806607 |
|
61 ms | 217.160.177.66 |