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 2026-08-17. For this date, NameServerHistory found 71 DNS check records, 71 successful responses, 0 failed responses, and 121 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

71

Historical checks stored for this nameserver on selected date

Average Latency

121 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-17 23:44

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

71

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 2026-08-17 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
71 2026-08-17 23:44 639226062577647657
210 ms 23.239.27.53
70 2026-08-17 22:51 639226031060857136
102 ms 23.239.27.53
69 2026-08-17 22:35 639226021535117364
216 ms 23.239.27.53
68 2026-08-17 22:20 639226011884237078
104 ms 23.239.27.53
67 2026-08-17 22:04 639226002309299142
4 ms 23.239.27.53
66 2026-08-17 21:47 639225992791784448
101 ms 23.239.27.53
65 2026-08-17 21:32 639225983045271390
3 ms 23.239.27.53
64 2026-08-17 21:15 639225973246293513
110 ms 23.239.27.53
63 2026-08-17 20:59 639225963620186236
101 ms 23.239.27.53
62 2026-08-17 20:43 639225953899183916
231 ms 23.239.27.53
61 2026-08-17 20:27 639225944391528206
106 ms 23.239.27.53
60 2026-08-17 20:11 639225934593254169
215 ms 23.239.27.53
59 2026-08-17 19:54 639225924669984512
209 ms 23.239.27.53
58 2026-08-17 19:01 639225893048561320
104 ms 23.239.27.53
57 2026-08-17 18:45 639225883481298424
202 ms 23.239.27.53
56 2026-08-17 18:29 639225873845394034
107 ms 23.239.27.53
55 2026-08-17 18:13 639225864216078662
205 ms 23.239.27.53
54 2026-08-17 17:57 639225854541857773
113 ms 23.239.27.53
53 2026-08-17 17:41 639225844733604072
103 ms 23.239.27.53
52 2026-08-17 17:25 639225835085229232
103 ms 23.239.27.53
51 2026-08-17 17:09 639225825349373981
101 ms 23.239.27.53
50 2026-08-17 16:52 639225815690604161
107 ms 23.239.27.53
49 2026-08-17 16:36 639225805952472306
106 ms 23.239.27.53
48 2026-08-17 16:20 639225796264729638
103 ms 23.239.27.53
47 2026-08-17 16:04 639225786326499329
205 ms 23.239.27.53
46 2026-08-17 15:11 639225754798130711
101 ms 23.239.27.53
45 2026-08-17 14:55 639225745123193922
214 ms 23.239.27.53
44 2026-08-17 14:39 639225735540597271
102 ms 23.239.27.53
43 2026-08-17 14:23 639225725894857396
107 ms 23.239.27.53
42 2026-08-17 14:07 639225716249606913
207 ms 23.239.27.53
41 2026-08-17 13:51 639225706638238179
200 ms 23.239.27.53
40 2026-08-17 13:34 639225696949691423
201 ms 23.239.27.53
39 2026-08-17 13:18 639225687286186336
275 ms 23.239.27.53
38 2026-08-17 13:02 639225677679573133
207 ms 23.239.27.53
37 2026-08-17 12:46 639225667957861024
210 ms 23.239.27.53
36 2026-08-17 12:30 639225658298791618
103 ms 23.239.27.53
35 2026-08-17 12:14 639225648583652785
103 ms 23.239.27.53
34 2026-08-17 11:21 639225617000524308
202 ms 23.239.27.53
33 2026-08-17 11:05 639225607668541600
101 ms 23.239.27.53
32 2026-08-17 10:50 639225598117279238
102 ms 23.239.27.53
31 2026-08-17 10:34 639225588751002710
101 ms 23.239.27.53
30 2026-08-17 10:18 639225579295831051
101 ms 23.239.27.53
29 2026-08-17 10:02 639225569761469940
102 ms 23.239.27.53
28 2026-08-17 09:46 639225560161422333
205 ms 23.239.27.53
27 2026-08-17 09:31 639225550739955565
4 ms 23.239.27.53
26 2026-08-17 09:15 639225541125222426
4 ms 23.239.27.53
25 2026-08-17 08:59 639225531526675983
101 ms 23.239.27.53
24 2026-08-17 08:43 639225521915528222
4 ms 23.239.27.53
23 2026-08-17 08:26 639225512148151789
4 ms 23.239.27.53
22 2026-08-17 07:34 639225480786142412
3 ms 23.239.27.53
21 2026-08-17 07:18 639225471394348551
102 ms 23.239.27.53
20 2026-08-17 07:03 639225462031685068
201 ms 23.239.27.53
19 2026-08-17 06:47 639225452639458328
216 ms 23.239.27.53
18 2026-08-17 06:31 639225443300966543
3 ms 23.239.27.53
17 2026-08-17 06:16 639225433880499379
101 ms 23.239.27.53
16 2026-08-17 06:00 639225424395198277
4 ms 23.239.27.53
15 2026-08-17 05:44 639225414744137487
126 ms 23.239.27.53
14 2026-08-17 05:28 639225405186783164
102 ms 23.239.27.53
13 2026-08-17 05:12 639225395563669822
198 ms 23.239.27.53
12 2026-08-17 04:56 639225386076645158
3 ms 23.239.27.53
11 2026-08-17 04:40 639225376620669704
101 ms 23.239.27.53
10 2026-08-17 03:48 639225345580892706
5 ms 23.239.27.53
9 2026-08-17 03:33 639225336207383710
101 ms 23.239.27.53
8 2026-08-17 03:17 639225326726565001
100 ms 23.239.27.53
7 2026-08-17 03:01 639225317249271010
202 ms 23.239.27.53
6 2026-08-17 02:10 639225286280886044
101 ms 23.239.27.53
5 2026-08-17 01:54 639225276872567548
105 ms 23.239.27.53
4 2026-08-17 01:38 639225267353865348
101 ms 23.239.27.53
3 2026-08-17 01:22 639225258033914248
201 ms 23.239.27.53
2 2026-08-17 00:30 639225226652221583
100 ms 23.239.27.53
1 2026-08-17 00:15 639225217156387684
101 ms 23.239.27.53