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 2026-08-19. For this date, NameServerHistory found 74 DNS check records, 73 successful responses, 1 failed responses, and 161 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
161 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-19 23:45
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 2026-08-19 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 | 2026-08-19 23:45 | 639227795899225951 |
|
41 ms | 217.160.177.66 |
| 73 | 2026-08-19 23:29 | 639227786351762008 |
|
18 ms | 217.160.177.66 |
| 72 | 2026-08-19 23:13 | 639227776640591733 |
|
46 ms | 217.160.177.66 |
| 71 | 2026-08-19 22:57 | 639227767128841282 |
|
9 ms | 217.160.177.66 |
| 70 | 2026-08-19 22:41 | 639227757477304711 |
|
12 ms | 217.160.177.66 |
| 69 | 2026-08-19 22:25 | 639227747572098014 |
|
102 ms | 217.160.177.66 |
| 68 | 2026-08-19 22:08 | 639227737588613113 |
|
10 ms | 217.160.177.66 |
| 67 | 2026-08-19 21:16 | 639227706134603955 |
|
20 ms | 217.160.177.66 |
| 66 | 2026-08-19 21:00 | 639227696589027396 |
|
46 ms | 217.160.177.66 |
| 65 | 2026-08-19 20:44 | 639227687097707639 |
|
74 ms | 217.160.177.66 |
| 64 | 2026-08-19 20:28 | 639227677474464487 |
|
45 ms | 217.160.177.66 |
| 63 | 2026-08-19 20:12 | 639227667767441118 |
|
46 ms | 217.160.177.66 |
| 62 | 2026-08-19 19:55 | 639227657984833832 |
|
60 ms | 217.160.177.66 |
| 61 | 2026-08-19 19:39 | 639227648079992640 |
|
47 ms | 217.160.177.66 |
| 60 | 2026-08-19 19:23 | 639227638125048441 |
|
16 ms | 217.160.177.66 |
| 59 | 2026-08-19 19:06 | 639227628211392142 |
|
776 ms | 217.160.177.66 |
| 58 | 2026-08-19 18:49 | 639227618261696275 |
|
21 ms | 217.160.177.66 |
| 57 | 2026-08-19 18:33 | 639227608366233645 |
|
59 ms | 217.160.177.66 |
| 56 | 2026-08-19 18:16 | 639227598301787588 |
|
38 ms | 217.160.177.66 |
| 55 | 2026-08-19 17:23 | 639227566241010716 |
|
33 ms | 217.160.177.66 |
| 54 | 2026-08-19 17:06 | 639227556454538959 |
|
274 ms | 217.160.177.66 |
| 53 | 2026-08-19 16:50 | 639227546640305542 |
|
9 ms | 217.160.177.66 |
| 52 | 2026-08-19 16:34 | 639227536965466472 |
|
19 ms | 217.160.177.66 |
| 51 | 2026-08-19 16:17 | 639227527048658280 |
|
180 ms | 217.160.177.66 |
| 50 | 2026-08-19 16:01 | 639227517386634438 |
|
57 ms | 217.160.177.66 |
| 49 | 2026-08-19 15:45 | 639227507459551637 |
|
228 ms | 217.160.177.66 |
| 48 | 2026-08-19 15:28 | 639227497515595277 |
|
36 ms | 217.160.177.66 |
| 47 | 2026-08-19 15:11 | 639227487441798036 |
|
43 ms | 217.160.177.66 |
| 46 | 2026-08-19 14:55 | 639227477445551863 |
|
57 ms | 217.160.177.66 |
| 45 | 2026-08-19 14:38 | 639227467297067891 |
|
17 ms | 217.160.177.66 |
| 44 | 2026-08-19 14:21 | 639227457057795635 |
|
327 ms | 217.160.177.66 |
| 43 | 2026-08-19 13:28 | 639227425244777397 |
|
86 ms | 217.160.177.66 |
| 42 | 2026-08-19 13:11 | 639227415422116485 |
|
8 ms | 217.160.177.66 |
| 41 | 2026-08-19 12:54 | 639227405307256053 |
|
39 ms | 217.160.177.66 |
| 40 | 2026-08-19 12:38 | 639227395396602630 |
|
203 ms | 217.160.177.66 |
| 39 | 2026-08-19 12:21 | 639227385510363611 |
|
31 ms | 217.160.177.66 |
| 38 | 2026-08-19 12:05 | 639227375508324850 |
|
31 ms | 217.160.177.66 |
| 37 | 2026-08-19 11:48 | 639227365326611906 |
|
83 ms | 217.160.177.66 |
| 36 | 2026-08-19 11:31 | 639227355360014208 |
|
58 ms | 217.160.177.66 |
| 35 | 2026-08-19 11:14 | 639227345036782165 |
|
189 ms | 217.160.177.66 |
| 34 | 2026-08-19 10:57 | 639227334992964533 |
|
40 ms | 217.160.177.66 |
| 33 | 2026-08-19 10:40 | 639227324986605572 |
|
2337 ms | 217.160.177.66 |
| 32 | 2026-08-19 10:24 | 639227314928414539 |
|
11 ms | 217.160.177.66 |
| 31 | 2026-08-19 09:30 | 639227283029182134 |
|
47 ms | 217.160.177.66 |
| 30 | 2026-08-19 09:14 | 639227273294779350 |
|
58 ms | 217.160.177.66 |
| 29 | 2026-08-19 08:58 | 639227263525231313 |
|
62 ms | 217.160.177.66 |
| 28 | 2026-08-19 08:41 | 639227253578313363 |
|
14 ms | 217.160.177.66 |
| 27 | 2026-08-19 08:25 | 639227243649973322 |
|
45 ms | 217.160.177.66 |
| 26 | 2026-08-19 08:08 | 639227233581059317 |
|
42 ms | 217.160.177.66 |
| 25 | 2026-08-19 07:51 | 639227223667352067 |
|
16 ms | 217.160.177.66 |
| 24 | 2026-08-19 07:35 | 639227213714837066 |
|
63 ms | 217.160.177.66 |
| 23 | 2026-08-19 07:18 | 639227203701208496 |
|
43 ms | 217.160.177.66 |
| 22 | 2026-08-19 07:01 | 639227193643202179 |
|
32 ms | 217.160.177.66 |
| 21 | 2026-08-19 06:45 | 639227183584431597 |
|
- | |
| 20 | 2026-08-19 06:28 | 639227173347403088 |
|
11 ms | 217.160.177.66 |
| 19 | 2026-08-19 05:35 | 639227141523007601 |
|
20 ms | 217.160.177.66 |
| 18 | 2026-08-19 05:19 | 639227131785931574 |
|
53 ms | 217.160.177.66 |
| 17 | 2026-08-19 05:03 | 639227122176475389 |
|
11 ms | 217.160.177.66 |
| 16 | 2026-08-19 04:46 | 639227112668934596 |
|
12 ms | 217.160.177.66 |
| 15 | 2026-08-19 04:30 | 639227102773292788 |
|
3 ms | 217.160.177.66 |
| 14 | 2026-08-19 04:14 | 639227093141136930 |
|
2102 ms | 217.160.177.66 |
| 13 | 2026-08-19 03:58 | 639227083449420147 |
|
60 ms | 217.160.177.66 |
| 12 | 2026-08-19 03:42 | 639227073771748493 |
|
44 ms | 217.160.177.66 |
| 11 | 2026-08-19 03:25 | 639227063977347614 |
|
15 ms | 217.160.177.66 |
| 10 | 2026-08-19 03:09 | 639227054253519024 |
|
16 ms | 217.160.177.66 |
| 9 | 2026-08-19 02:53 | 639227044381963886 |
|
23 ms | 217.160.177.66 |
| 8 | 2026-08-19 02:36 | 639227034441085514 |
|
9 ms | 217.160.177.66 |
| 7 | 2026-08-19 01:44 | 639227003126489968 |
|
317 ms | 217.160.177.66 |
| 6 | 2026-08-19 01:28 | 639226993456311614 |
|
45 ms | 217.160.177.66 |
| 5 | 2026-08-19 01:12 | 639226983847312345 |
|
2205 ms | 217.160.177.66 |
| 4 | 2026-08-19 00:56 | 639226974357874853 |
|
30 ms | 217.160.177.66 |
| 3 | 2026-08-19 00:40 | 639226964670484721 |
|
56 ms | 217.160.177.66 |
| 2 | 2026-08-19 00:24 | 639226954857899696 |
|
386 ms | 217.160.177.66 |
| 1 | 2026-08-19 00:07 | 639226945091603488 |
|
40 ms | 217.160.177.66 |