DNS response history for ns401.rootservercloud.com

ns401.rootservercloud.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 2026-08-21. For this date, NameServerHistory found 73 DNS check records, 73 successful responses, 0 failed responses, and 139 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 ns401.rootservercloud.com.
Records on Selected Date

73

Historical checks stored for this nameserver on selected date

Average Latency

139 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-21 23:59

All timestamps shown in UTC

Latest Resolved IP on Selected Date

23.239.27.53

Most recently resolved hosting IP on selected date

Successful Responses

73

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 ns401.rootservercloud.com

Showing DNS history for 2026-08-21 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
73 2026-08-21 23:59 639229527598660841
132 ms 23.239.27.53
72 2026-08-21 23:43 639229517954323214
3 ms 23.239.27.53
71 2026-08-21 23:27 639229508269999021
126 ms 23.239.27.53
70 2026-08-21 23:11 639229498559060171
3 ms 23.239.27.53
69 2026-08-21 22:54 639229488519347586
3 ms 23.239.27.53
68 2026-08-21 22:01 639229456606578934
201 ms 23.239.27.53
67 2026-08-21 21:45 639229446985772499
204 ms 23.239.27.53
66 2026-08-21 21:29 639229437367313098
103 ms 23.239.27.53
65 2026-08-21 21:13 639229427923950391
205 ms 23.239.27.53
64 2026-08-21 20:57 639229418168588854
165 ms 23.239.27.53
63 2026-08-21 20:41 639229408345678334
218 ms 23.239.27.53
62 2026-08-21 20:24 639229398616354648
4 ms 23.239.27.53
61 2026-08-21 20:08 639229388634592323
14 ms 23.239.27.53
60 2026-08-21 19:52 639229378792837692
4 ms 23.239.27.53
59 2026-08-21 19:35 639229369154682311
202 ms 23.239.27.53
58 2026-08-21 19:19 639229359248017926
112 ms 23.239.27.53
57 2026-08-21 19:02 639229349124294642
4 ms 23.239.27.53
56 2026-08-21 18:10 639229317791715692
233 ms 23.239.27.53
55 2026-08-21 17:54 639229308115194575
228 ms 23.239.27.53
54 2026-08-21 17:37 639229298320320558
118 ms 23.239.27.53
53 2026-08-21 17:21 639229288674863221
115 ms 23.239.27.53
52 2026-08-21 17:05 639229278983677079
229 ms 23.239.27.53
51 2026-08-21 16:49 639229269405517175
4 ms 23.239.27.53
50 2026-08-21 16:33 639229259594798244
3 ms 23.239.27.53
49 2026-08-21 16:16 639229249736681188
4 ms 23.239.27.53
48 2026-08-21 16:00 639229239699417787
204 ms 23.239.27.53
47 2026-08-21 15:43 639229229621964033
6 ms 23.239.27.53
46 2026-08-21 15:26 639229219567270965
205 ms 23.239.27.53
45 2026-08-21 15:09 639229209406666856
107 ms 23.239.27.53
44 2026-08-21 14:17 639229177815876178
4 ms 23.239.27.53
43 2026-08-21 14:00 639229168243572685
5 ms 23.239.27.53
42 2026-08-21 13:44 639229158599856475
5 ms 23.239.27.53
41 2026-08-21 13:28 639229148998940902
6 ms 23.239.27.53
40 2026-08-21 13:12 639229139276923594
13 ms 23.239.27.53
39 2026-08-21 12:56 639229129709912394
204 ms 23.239.27.53
38 2026-08-21 12:40 639229119801488500
204 ms 23.239.27.53
37 2026-08-21 12:24 639229110135262458
3 ms 23.239.27.53
36 2026-08-21 12:07 639229100336051392
5 ms 23.239.27.53
35 2026-08-21 11:51 639229090641415626
103 ms 23.239.27.53
34 2026-08-21 11:35 639229080702683947
6 ms 23.239.27.53
33 2026-08-21 11:18 639229070601456699
5 ms 23.239.27.53
32 2026-08-21 10:25 639229038947447232
5 ms 23.239.27.53
31 2026-08-21 10:09 639229029268708773
4 ms 23.239.27.53
30 2026-08-21 09:53 639229019647910603
4 ms 23.239.27.53
29 2026-08-21 09:37 639229009983843738
205 ms 23.239.27.53
28 2026-08-21 09:20 639229000203331882
4 ms 23.239.27.53
27 2026-08-21 09:04 639228990302335999
2 ms 23.239.27.53
26 2026-08-21 08:48 639228980567740722
104 ms 23.239.27.53
25 2026-08-21 08:31 639228970762445174
205 ms 23.239.27.53
24 2026-08-21 08:15 639228961065054445
104 ms 23.239.27.53
23 2026-08-21 07:59 639228951224649885
3 ms 23.239.27.53
22 2026-08-21 07:42 639228941303864592
6 ms 23.239.27.53
21 2026-08-21 07:26 639228931191328583
3 ms 23.239.27.53
20 2026-08-21 06:33 639228899518173317
34 ms 23.239.27.53
19 2026-08-21 06:17 639228889785027669
204 ms 23.239.27.53
18 2026-08-21 06:00 639228880106330161
217 ms 23.239.27.53
17 2026-08-21 05:44 639228870316184091
209 ms 23.239.27.53
16 2026-08-21 05:28 639228860695366512
102 ms 23.239.27.53
15 2026-08-21 05:12 639228851027209500
106 ms 23.239.27.53
14 2026-08-21 04:56 639228841479265462
2119 ms 23.239.27.53
13 2026-08-21 04:40 639228831752962260
3 ms 23.239.27.53
12 2026-08-21 04:23 639228821953295483
10 ms 23.239.27.53
11 2026-08-21 04:07 639228812227429953
4 ms 23.239.27.53
10 2026-08-21 03:51 639228802476107538
109 ms 23.239.27.53
9 2026-08-21 03:34 639228792525492032
3 ms 23.239.27.53
8 2026-08-21 02:42 639228761131421385
4 ms 23.239.27.53
7 2026-08-21 02:26 639228751571206692
3 ms 23.239.27.53
6 2026-08-21 02:10 639228741705571019
201 ms 23.239.27.53
5 2026-08-21 01:53 639228731642208228
202 ms 23.239.27.53
4 2026-08-21 01:00 639228700387002072
3 ms 23.239.27.53
3 2026-08-21 00:45 639228690742014433
2125 ms 23.239.27.53
2 2026-08-21 00:28 639228680877937122
101 ms 23.239.27.53
1 2026-08-21 00:12 639228670775860800
3 ms 23.239.27.53