DNS response history for ns1.ctexdev.net

ns1.ctexdev.net 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, 72 successful responses, 1 failed responses, and 154 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 ns1.ctexdev.net.
Records on Selected Date

73

Historical checks stored for this nameserver on selected date

Average Latency

154 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-21 23:51

All timestamps shown in UTC

Latest Resolved IP on Selected Date

51.178.214.230

Most recently resolved hosting IP on selected date

Successful Responses

72

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 ns1.ctexdev.net

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 23:51 639229527598660841
44 ms 51.178.214.230
72 2026-08-21 23:35 639229517954323214
64 ms 51.178.214.230
71 2026-08-21 23:19 639229508269999021
4 ms 51.178.214.230
70 2026-08-21 23:03 639229498559060171
52 ms 51.178.214.230
69 2026-08-21 22:46 639229488519347586
8 ms 51.178.214.230
68 2026-08-21 21:53 639229456606578934
37 ms 51.178.214.230
67 2026-08-21 21:37 639229446985772499
52 ms 51.178.214.230
66 2026-08-21 21:21 639229437367313098
90 ms 51.178.214.230
65 2026-08-21 21:05 639229427923950391
50 ms 51.178.214.230
64 2026-08-21 20:49 639229418168588854
15 ms 51.178.214.230
63 2026-08-21 20:32 639229408345678334
94 ms 51.178.214.230
62 2026-08-21 20:16 639229398616354648
4 ms 51.178.214.230
61 2026-08-21 20:00 639229388634592323
6 ms 51.178.214.230
60 2026-08-21 19:43 639229378792837692
48 ms 51.178.214.230
59 2026-08-21 19:27 639229369154682311
15 ms 51.178.214.230
58 2026-08-21 19:10 639229359248017926
66 ms 51.178.214.230
57 2026-08-21 18:54 639229349124294642
3 ms 51.178.214.230
56 2026-08-21 18:01 639229317791715692
24 ms 51.178.214.230
55 2026-08-21 17:45 639229308115194575
37 ms 51.178.214.230
54 2026-08-21 17:29 639229298320320558
53 ms 51.178.214.230
53 2026-08-21 17:13 639229288674863221
79 ms 51.178.214.230
52 2026-08-21 16:57 639229278983677079
34 ms 51.178.214.230
51 2026-08-21 16:40 639229269405517175
89 ms 51.178.214.230
50 2026-08-21 16:24 639229259594798244
86 ms 51.178.214.230
49 2026-08-21 16:08 639229249736681188
63 ms 51.178.214.230
48 2026-08-21 15:51 639229239699417787
2019 ms 51.178.214.230
47 2026-08-21 15:35 639229229621964033
13 ms 51.178.214.230
46 2026-08-21 15:18 639229219567270965
40 ms 51.178.214.230
45 2026-08-21 15:01 639229209406666856
4 ms 51.178.214.230
44 2026-08-21 14:08 639229177815876178
6 ms 51.178.214.230
43 2026-08-21 13:52 639229168243572685
35 ms 51.178.214.230
42 2026-08-21 13:36 639229158599856475
41 ms 51.178.214.230
41 2026-08-21 13:20 639229148998940902
62 ms 51.178.214.230
40 2026-08-21 13:04 639229139276923594
44 ms 51.178.214.230
39 2026-08-21 12:48 639229129709912394
59 ms 51.178.214.230
38 2026-08-21 12:31 639229119801488500
2044 ms 51.178.214.230
37 2026-08-21 12:15 639229110135262458
60 ms 51.178.214.230
36 2026-08-21 11:59 639229100336051392
64 ms 51.178.214.230
35 2026-08-21 11:43 639229090641415626
17 ms 51.178.214.230
34 2026-08-21 11:26 639229080702683947
51 ms 51.178.214.230
33 2026-08-21 11:09 639229070601456699
5 ms 51.178.214.230
32 2026-08-21 10:17 639229038947447232
92 ms 51.178.214.230
31 2026-08-21 10:00 639229029268708773
35 ms 51.178.214.230
30 2026-08-21 09:44 639229019647910603
54 ms 51.178.214.230
29 2026-08-21 09:28 639229009983843738
91 ms 51.178.214.230
28 2026-08-21 09:12 639229000203331882
34 ms 51.178.214.230
27 2026-08-21 08:56 639228990302335999
78 ms 51.178.214.230
26 2026-08-21 08:39 639228980567740722
41 ms 51.178.214.230
25 2026-08-21 08:23 639228970762445174
14 ms 51.178.214.230
24 2026-08-21 08:07 639228961065054445
47 ms 51.178.214.230
23 2026-08-21 07:51 639228951224649885
45 ms 51.178.214.230
22 2026-08-21 07:34 639228941303864592
46 ms 51.178.214.230
21 2026-08-21 07:17 639228931191328583
10 ms 51.178.214.230
20 2026-08-21 06:24 639228899518173317
49 ms 51.178.214.230
19 2026-08-21 06:08 639228889785027669
44 ms 51.178.214.230
18 2026-08-21 05:52 639228880106330161
50 ms 51.178.214.230
17 2026-08-21 05:36 639228870316184091
34 ms 51.178.214.230
16 2026-08-21 05:20 639228860695366512
72 ms 51.178.214.230
15 2026-08-21 05:04 639228851027209500
2098 ms 51.178.214.230
14 2026-08-21 04:47 639228841479265462
94 ms 51.178.214.230
13 2026-08-21 04:31 639228831752962260
41 ms 51.178.214.230
12 2026-08-21 04:15 639228821953295483
29 ms 51.178.214.230
11 2026-08-21 03:59 639228812227429953
2032 ms 51.178.214.230
10 2026-08-21 03:42 639228802476107538
3 ms 51.178.214.230
9 2026-08-21 03:26 639228792525492032
34 ms 51.178.214.230
8 2026-08-21 02:34 639228761131421385
51 ms 51.178.214.230
7 2026-08-21 02:18 639228751571206692
27 ms 51.178.214.230
6 2026-08-21 02:01 639228741705571019
47 ms 51.178.214.230
5 2026-08-21 01:44 639228731642208228
53 ms 51.178.214.230
4 2026-08-21 00:52 639228700387002072
8 ms 51.178.214.230
3 2026-08-21 00:36 639228690742014433
5 ms 51.178.214.230
2 2026-08-21 00:20 639228680877937122
-
1 2026-08-21 00:03 639228670775860800
74 ms 51.178.214.230