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 2026-08-18. For this date, NameServerHistory found 76 DNS check records, 76 successful responses, 0 failed responses, and 189 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

76

Historical checks stored for this nameserver on selected date

Average Latency

189 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-18 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

76

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 2026-08-18 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
76 2026-08-18 23:59 639226935204800669
111 ms 23.239.27.53
75 2026-08-18 23:42 639226925298919497
3 ms 23.239.27.53
74 2026-08-18 23:26 639226915487885053
204 ms 23.239.27.53
73 2026-08-18 23:09 639226905465760034
207 ms 23.239.27.53
72 2026-08-18 22:53 639226895378104692
33 ms 23.239.27.53
71 2026-08-18 21:59 639226863374232622
116 ms 23.239.27.53
70 2026-08-18 21:43 639226853698516058
103 ms 23.239.27.53
69 2026-08-18 21:26 639226843797360601
102 ms 23.239.27.53
68 2026-08-18 21:10 639226834046588155
4 ms 23.239.27.53
67 2026-08-18 20:54 639226824234488533
173 ms 23.239.27.53
66 2026-08-18 20:37 639226814549928621
218 ms 23.239.27.53
65 2026-08-18 20:21 639226804721432353
3 ms 23.239.27.53
64 2026-08-18 20:05 639226795048828184
106 ms 23.239.27.53
63 2026-08-18 19:49 639226785202482420
213 ms 23.239.27.53
62 2026-08-18 19:32 639226775309362607
207 ms 23.239.27.53
61 2026-08-18 19:16 639226765406586155
107 ms 23.239.27.53
60 2026-08-18 18:59 639226755437790519
114 ms 23.239.27.53
59 2026-08-18 18:06 639226723856194457
4 ms 23.239.27.53
58 2026-08-18 17:50 639226714050583422
105 ms 23.239.27.53
57 2026-08-18 17:34 639226704236499724
104 ms 23.239.27.53
56 2026-08-18 17:17 639226694184520163
206 ms 23.239.27.53
55 2026-08-18 17:00 639226684161203477
102 ms 23.239.27.53
54 2026-08-18 16:44 639226674305430109
103 ms 23.239.27.53
53 2026-08-18 16:27 639226664489607984
102 ms 23.239.27.53
52 2026-08-18 16:11 639226654533111667
205 ms 23.239.27.53
51 2026-08-18 15:54 639226644778594725
103 ms 23.239.27.53
50 2026-08-18 15:38 639226634901553621
104 ms 23.239.27.53
49 2026-08-18 15:22 639226624921864967
107 ms 23.239.27.53
48 2026-08-18 15:05 639226614939419403
102 ms 23.239.27.53
47 2026-08-18 14:12 639226583021074771
7 ms 23.239.27.53
46 2026-08-18 13:55 639226573279933585
326 ms 23.239.27.53
45 2026-08-18 13:39 639226563494036301
5 ms 23.239.27.53
44 2026-08-18 13:23 639226553708216256
213 ms 23.239.27.53
43 2026-08-18 13:06 639226544003734815
3 ms 23.239.27.53
42 2026-08-18 12:50 639226534105733155
203 ms 23.239.27.53
41 2026-08-18 12:34 639226524298118898
212 ms 23.239.27.53
40 2026-08-18 12:17 639226514525195335
105 ms 23.239.27.53
39 2026-08-18 12:01 639226504703635320
232 ms 23.239.27.53
38 2026-08-18 11:45 639226494737271720
103 ms 23.239.27.53
37 2026-08-18 11:28 639226485005027236
104 ms 23.239.27.53
36 2026-08-18 11:12 639226475133236105
4 ms 23.239.27.53
35 2026-08-18 10:18 639226442975077052
114 ms 23.239.27.53
34 2026-08-18 10:02 639226433317932039
121 ms 23.239.27.53
33 2026-08-18 09:46 639226423688431096
4 ms 23.239.27.53
32 2026-08-18 09:30 639226413998250045
212 ms 23.239.27.53
31 2026-08-18 09:13 639226404284554875
202 ms 23.239.27.53
30 2026-08-18 08:57 639226394637043309
204 ms 23.239.27.53
29 2026-08-18 08:41 639226385052447582
213 ms 23.239.27.53
28 2026-08-18 08:25 639226375506189603
208 ms 23.239.27.53
27 2026-08-18 08:09 639226365690646426
215 ms 23.239.27.53
26 2026-08-18 07:53 639226355771007701
207 ms 23.239.27.53
25 2026-08-18 07:36 639226345946269369
102 ms 23.239.27.53
24 2026-08-18 07:20 639226336241601848
205 ms 23.239.27.53
23 2026-08-18 06:28 639226304950675290
202 ms 23.239.27.53
22 2026-08-18 06:12 639226295324754616
103 ms 23.239.27.53
21 2026-08-18 05:56 639226285824640601
206 ms 23.239.27.53
20 2026-08-18 05:40 639226276321223917
2111 ms 23.239.27.53
19 2026-08-18 05:24 639226266800200046
205 ms 23.239.27.53
18 2026-08-18 05:08 639226256958066164
225 ms 23.239.27.53
17 2026-08-18 04:52 639226247432364597
212 ms 23.239.27.53
16 2026-08-18 04:36 639226237703388552
108 ms 23.239.27.53
15 2026-08-18 04:20 639226227937569589
101 ms 23.239.27.53
14 2026-08-18 04:04 639226218052465471
222 ms 23.239.27.53
13 2026-08-18 03:47 639226208429623997
203 ms 23.239.27.53
12 2026-08-18 03:31 639226198800675295
102 ms 23.239.27.53
11 2026-08-18 02:39 639226167722042574
166 ms 23.239.27.53
10 2026-08-18 02:23 639226158277924383
209 ms 23.239.27.53
9 2026-08-18 02:08 639226148757810592
105 ms 23.239.27.53
8 2026-08-18 01:52 639226139348611045
200 ms 23.239.27.53
7 2026-08-18 01:36 639226129823462907
113 ms 23.239.27.53
6 2026-08-18 01:20 639226120218260005
208 ms 23.239.27.53
5 2026-08-18 01:04 639226110875503904
3 ms 23.239.27.53
4 2026-08-18 00:49 639226101376311912
18 ms 23.239.27.53
3 2026-08-18 00:33 639226091924943492
112 ms 23.239.27.53
2 2026-08-18 00:17 639226082133158124
2120 ms 23.239.27.53
1 2026-08-18 00:00 639226072268080268
203 ms 23.239.27.53