DNS response history for ns1.cortex-it.ch

ns1.cortex-it.ch 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 2026-08-15. For this date, NameServerHistory found 76 DNS check records, 75 successful responses, 1 failed responses, and 275 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.cortex-it.ch.
Records on Selected Date

76

Historical checks stored for this nameserver on selected date

Average Latency

275 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-15 23:54

All timestamps shown in UTC

Latest Resolved IP on Selected Date

5.187.57.23

Most recently resolved hosting IP on selected date

Successful Responses

75

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.cortex-it.ch

Showing DNS history for 2026-08-15 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 2026-08-15 23:54 639224347685767174
37 ms 5.187.57.23
75 2026-08-15 23:38 639224338276675277
71 ms 5.187.57.23
74 2026-08-15 22:46 639224306594546649
48 ms 5.187.57.23
73 2026-08-15 22:30 639224297145423303
32 ms 5.187.57.23
72 2026-08-15 22:14 639224287678238833
13 ms 5.187.57.23
71 2026-08-15 21:59 639224278490872828
37 ms 5.187.57.23
70 2026-08-15 21:43 639224269149307826
63 ms 5.187.57.23
69 2026-08-15 21:28 639224259868597616
43 ms 5.187.57.23
68 2026-08-15 21:12 639224250518642175
35 ms 5.187.57.23
67 2026-08-15 20:57 639224241064772383
22 ms 5.187.57.23
66 2026-08-15 20:41 639224231691099605
27 ms 5.187.57.23
65 2026-08-15 20:26 639224222468168159
61 ms 5.187.57.23
64 2026-08-15 20:10 639224213173899635
44 ms 5.187.57.23
63 2026-08-15 19:55 639224203914451783
51 ms 5.187.57.23
62 2026-08-15 19:02 639224172202542163
37 ms 5.187.57.23
61 2026-08-15 18:47 639224163338654093
22 ms 5.187.57.23
60 2026-08-15 18:32 639224154287995374
2058 ms 5.187.57.23
59 2026-08-15 18:17 639224145118612503
35 ms 5.187.57.23
58 2026-08-15 18:02 639224135995990731
40 ms 5.187.57.23
57 2026-08-15 17:47 639224127185332624
75 ms 5.187.57.23
56 2026-08-15 17:32 639224118229289175
51 ms 5.187.57.23
55 2026-08-15 17:17 639224109273796359
23 ms 5.187.57.23
54 2026-08-15 17:02 639224100490805608
24 ms 5.187.57.23
53 2026-08-15 16:47 639224091353714490
46 ms 5.187.57.23
52 2026-08-15 16:32 639224082033126828
22 ms 5.187.57.23
51 2026-08-15 16:16 639224072736962403
20 ms 5.187.57.23
50 2026-08-15 15:24 639224041475563754
20 ms 5.187.57.23
49 2026-08-15 15:09 639224032345604453
19 ms 5.187.57.23
48 2026-08-15 14:53 639224023169497283
50 ms 5.187.57.23
47 2026-08-15 14:38 639224013981146405
41 ms 5.187.57.23
46 2026-08-15 14:23 639224004883412586
42 ms 5.187.57.23
45 2026-08-15 14:08 639223995612880615
27 ms 5.187.57.23
44 2026-08-15 13:52 639223986271830789
27 ms 5.187.57.23
43 2026-08-15 13:36 639223977005780949
2060 ms 5.187.57.23
42 2026-08-15 13:21 639223967653137793
26 ms 5.187.57.23
41 2026-08-15 13:05 639223958286010799
58 ms 5.187.57.23
40 2026-08-15 12:50 639223948936108345
2025 ms 5.187.57.23
39 2026-08-15 12:34 639223939673066880
29 ms 5.187.57.23
38 2026-08-15 11:42 639223908317760530
2030 ms 5.187.57.23
37 2026-08-15 11:26 639223898992594258
39 ms 5.187.57.23
36 2026-08-15 11:11 639223889761312823
4 ms 5.187.57.23
35 2026-08-15 10:55 639223880359273507
24 ms 5.187.57.23
34 2026-08-15 10:39 639223870920466808
47 ms 5.187.57.23
33 2026-08-15 10:24 639223861579762179
59 ms 5.187.57.23
32 2026-08-15 10:08 639223852238616009
2051 ms 5.187.57.23
31 2026-08-15 09:53 639223843019815620
28 ms 5.187.57.23
30 2026-08-15 09:37 639223833669915012
49 ms 5.187.57.23
29 2026-08-15 09:22 639223824494613222
31 ms 5.187.57.23
28 2026-08-15 09:06 639223815116325293
27 ms 5.187.57.23
27 2026-08-15 08:50 639223805493870221
2045 ms 5.187.57.23
26 2026-08-15 07:58 639223774218660438
21 ms 5.187.57.23
25 2026-08-15 07:42 639223764663090372
40 ms 5.187.57.23
24 2026-08-15 07:27 639223755338811400
38 ms 5.187.57.23
23 2026-08-15 07:11 639223746019193268
58 ms 5.187.57.23
22 2026-08-15 06:56 639223736658778104
51 ms 5.187.57.23
21 2026-08-15 06:40 639223727330194499
2039 ms 5.187.57.23
20 2026-08-15 06:24 639223717848514742
21 ms 5.187.57.23
19 2026-08-15 06:09 639223708284754056
31 ms 5.187.57.23
18 2026-08-15 05:53 639223699061259933
22 ms 5.187.57.23
17 2026-08-15 05:37 639223689592545140
25 ms 5.187.57.23
16 2026-08-15 05:21 639223680143410810
51 ms 5.187.57.23
15 2026-08-15 05:06 639223670514517104
32 ms 5.187.57.23
14 2026-08-15 04:12 639223638855054294
40 ms 5.187.57.23
13 2026-08-15 03:57 639223629623335972
17 ms 5.187.57.23
12 2026-08-15 03:41 639223620390189495
17 ms 5.187.57.23
11 2026-08-15 03:25 639223610916950440
34 ms 5.187.57.23
10 2026-08-15 03:10 639223601597759168
-
9 2026-08-15 02:54 639223592342172093
37 ms 5.187.57.23
8 2026-08-15 02:39 639223583324121497
4 ms 5.187.57.23
7 2026-08-15 02:24 639223574086714218
5 ms 5.187.57.23
6 2026-08-15 02:08 639223564698424889
17 ms 5.187.57.23
5 2026-08-15 01:53 639223555408664206
10 ms 5.187.57.23
4 2026-08-15 01:37 639223546000912416
2026 ms 5.187.57.23
3 2026-08-15 01:22 639223536550774847
18 ms 5.187.57.23
2 2026-08-15 00:29 639223505017205611
35 ms 5.187.57.23
1 2026-08-15 00:14 639223495784410207
2057 ms 5.187.57.23