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 2026-08-10. For this date, NameServerHistory found 81 DNS check records, 79 successful responses, 2 failed responses, and 256 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

81

Historical checks stored for this nameserver on selected date

Average Latency

256 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-10 23:47

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

79

Checks that returned a measurable response

Failed Responses

2

Checks with no response or no returned latency

Failure Rate

2%

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 2026-08-10 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
81 2026-08-10 23:47 639220018272941900
3 ms 23.239.27.53
80 2026-08-10 23:31 639220009109892969
3 ms 23.239.27.53
79 2026-08-10 23:16 639220000040489788
2 ms 23.239.27.53
78 2026-08-10 23:01 639219991197135747
202 ms 23.239.27.53
77 2026-08-10 22:46 639219982104540014
102 ms 23.239.27.53
76 2026-08-10 22:31 639219973150300215
4 ms 23.239.27.53
75 2026-08-10 22:16 639219964188486697
112 ms 23.239.27.53
74 2026-08-10 22:01 639219954995921784
208 ms 23.239.27.53
73 2026-08-10 21:46 639219945559908104
202 ms 23.239.27.53
72 2026-08-10 20:53 639219914137782273
124 ms 23.239.27.53
71 2026-08-10 20:38 639219904858355064
2117 ms 23.239.27.53
70 2026-08-10 20:22 639219895655263396
204 ms 23.239.27.53
69 2026-08-10 20:07 639219886527091074
200 ms 23.239.27.53
68 2026-08-10 19:52 639219877343266628
202 ms 23.239.27.53
67 2026-08-10 19:36 639219868177358195
200 ms 23.239.27.53
66 2026-08-10 19:21 639219859159581515
224 ms 23.239.27.53
65 2026-08-10 19:06 639219850124020182
102 ms 23.239.27.53
64 2026-08-10 18:51 639219840940124840
209 ms 23.239.27.53
63 2026-08-10 18:36 639219831829876486
103 ms 23.239.27.53
62 2026-08-10 18:20 639219822587759143
16 ms 23.239.27.53
61 2026-08-10 18:05 639219813247114428
205 ms 23.239.27.53
60 2026-08-10 17:11 639219781959606396
117 ms 23.239.27.53
59 2026-08-10 16:55 639219772658305431
127 ms 23.239.27.53
58 2026-08-10 16:40 639219763454523027
127 ms 23.239.27.53
57 2026-08-10 16:25 639219754279127815
205 ms 23.239.27.53
56 2026-08-10 16:09 639219745087467767
230 ms 23.239.27.53
55 2026-08-10 15:54 639219735900678107
368 ms 23.239.27.53
54 2026-08-10 15:38 639219726531461979
103 ms 23.239.27.53
53 2026-08-10 15:23 639219717415222156
104 ms 23.239.27.53
52 2026-08-10 15:08 639219708266470863
2113 ms 23.239.27.53
51 2026-08-10 14:53 639219699049479559
138 ms 23.239.27.53
50 2026-08-10 14:37 639219689775815194
-
49 2026-08-10 14:22 639219680511810632
208 ms 23.239.27.53
48 2026-08-10 13:30 639219648997191257
9 ms 23.239.27.53
47 2026-08-10 13:15 639219639938909436
212 ms 23.239.27.53
46 2026-08-10 13:00 639219630718286441
173 ms 23.239.27.53
45 2026-08-10 12:44 639219621472350410
210 ms 23.239.27.53
44 2026-08-10 12:29 639219612500421992
202 ms 23.239.27.53
43 2026-08-10 12:14 639219603383833445
127 ms 23.239.27.53
42 2026-08-10 11:58 639219594143823358
4 ms 23.239.27.53
41 2026-08-10 11:43 639219585053166024
118 ms 23.239.27.53
40 2026-08-10 11:28 639219575885776644
120 ms 23.239.27.53
39 2026-08-10 11:13 639219566844532361
140 ms 23.239.27.53
38 2026-08-10 10:58 639219557705808294
225 ms 23.239.27.53
37 2026-08-10 10:42 639219548482688649
4 ms 23.239.27.53
36 2026-08-10 09:52 639219517492763539
4 ms 23.239.27.53
35 2026-08-10 09:37 639219508755773605
6 ms 23.239.27.53
34 2026-08-10 09:22 639219499852103863
225 ms 23.239.27.53
33 2026-08-10 09:07 639219490893714387
127 ms 23.239.27.53
32 2026-08-10 08:53 639219482299305521
4 ms 23.239.27.53
31 2026-08-10 08:38 639219473613114853
232 ms 23.239.27.53
30 2026-08-10 08:24 639219465061138643
105 ms 23.239.27.53
29 2026-08-10 08:10 639219456616129015
164 ms 23.239.27.53
28 2026-08-10 07:56 639219447974008557
14 ms 23.239.27.53
27 2026-08-10 07:41 639219439498255213
4 ms 23.239.27.53
26 2026-08-10 07:27 639219430664872256
5 ms 23.239.27.53
25 2026-08-10 07:12 639219421757560037
134 ms 23.239.27.53
24 2026-08-10 06:17 639219390773218684
-
23 2026-08-10 06:03 639219382205367722
5 ms 23.239.27.53
22 2026-08-10 05:48 639219373711937615
206 ms 23.239.27.53
21 2026-08-10 05:34 639219365088558404
7 ms 23.239.27.53
20 2026-08-10 05:20 639219356348833255
139 ms 23.239.27.53
19 2026-08-10 05:05 639219347860053478
209 ms 23.239.27.53
18 2026-08-10 04:51 639219339173195121
2127 ms 23.239.27.53
17 2026-08-10 04:37 639219330642664669
8 ms 23.239.27.53
16 2026-08-10 04:23 639219322058698995
2133 ms 23.239.27.53
15 2026-08-10 04:08 639219313564344199
7 ms 23.239.27.53
14 2026-08-10 03:54 639219304775113236
2122 ms 23.239.27.53
13 2026-08-10 03:39 639219295706181119
114 ms 23.239.27.53
12 2026-08-10 02:48 639219264663923254
329 ms 23.239.27.53
11 2026-08-10 02:33 639219256015178099
284 ms 23.239.27.53
10 2026-08-10 02:19 639219247509540188
257 ms 23.239.27.53
9 2026-08-10 02:05 639219238999539092
88 ms 23.239.27.53
8 2026-08-10 01:50 639219230498823902
15 ms 23.239.27.53
7 2026-08-10 01:36 639219221706460911
42 ms 23.239.27.53
6 2026-08-10 01:21 639219212930606887
252 ms 23.239.27.53
5 2026-08-10 01:07 639219204307908525
263 ms 23.239.27.53
4 2026-08-10 00:52 639219195720181470
148 ms 23.239.27.53
3 2026-08-10 00:38 639219186898174002
64 ms 23.239.27.53
2 2026-08-10 00:23 639219178004946976
232 ms 23.239.27.53
1 2026-08-10 00:08 639219168958805474
27 ms 23.239.27.53