DNS response history for ns4.cortexns.io

ns4.cortexns.io 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 2026-08-23. For this date, NameServerHistory found 75 DNS check records, 75 successful responses, 0 failed responses, and 145 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 ns4.cortexns.io.
Records on Selected Date

75

Historical checks stored for this nameserver on selected date

Average Latency

145 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-23 23:53

All timestamps shown in UTC

Latest Resolved IP on Selected Date

147.93.154.51

Most recently resolved hosting IP on selected date

Successful Responses

75

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 ns4.cortexns.io

Showing DNS history for 2026-08-23 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
75 2026-08-23 23:53 639231254406598736
201 ms 147.93.154.51
74 2026-08-23 23:36 639231244697865594
23 ms 147.93.154.51
73 2026-08-23 23:20 639231234893504693
19 ms 147.93.154.51
72 2026-08-23 23:03 639231225024549139
40 ms 147.93.154.51
71 2026-08-23 22:47 639231214931957622
16 ms 147.93.154.51
70 2026-08-23 22:30 639231204962010549
45 ms 147.93.154.51
69 2026-08-23 22:14 639231195170138463
53 ms 147.93.154.51
68 2026-08-23 21:57 639231185235020577
22 ms 147.93.154.51
67 2026-08-23 21:41 639231175558690075
163 ms 147.93.154.51
66 2026-08-23 21:24 639231165610444012
55 ms 147.93.154.51
65 2026-08-23 20:32 639231133806425363
45 ms 147.93.154.51
64 2026-08-23 20:15 639231124203758023
4 ms 147.93.154.51
63 2026-08-23 19:59 639231114428262706
145 ms 147.93.154.51
62 2026-08-23 19:43 639231104662480065
7 ms 147.93.154.51
61 2026-08-23 19:27 639231094840372018
21 ms 147.93.154.51
60 2026-08-23 19:10 639231085024583224
152 ms 147.93.154.51
59 2026-08-23 18:54 639231075257417427
74 ms 147.93.154.51
58 2026-08-23 18:38 639231065516009503
5 ms 147.93.154.51
57 2026-08-23 18:21 639231055805348837
7 ms 147.93.154.51
56 2026-08-23 18:05 639231045980373765
39 ms 147.93.154.51
55 2026-08-23 17:49 639231035984577527
96 ms 147.93.154.51
54 2026-08-23 17:32 639231025928115303
9 ms 147.93.154.51
53 2026-08-23 16:39 639230994250157583
4 ms 147.93.154.51
52 2026-08-23 16:23 639230984476411369
20 ms 147.93.154.51
51 2026-08-23 16:06 639230974838373450
4 ms 147.93.154.51
50 2026-08-23 15:51 639230965244277645
19 ms 147.93.154.51
49 2026-08-23 15:34 639230955522101820
25 ms 147.93.154.51
48 2026-08-23 15:18 639230945754521603
19 ms 147.93.154.51
47 2026-08-23 15:02 639230935852040504
46 ms 147.93.154.51
46 2026-08-23 14:45 639230926222061048
31 ms 147.93.154.51
45 2026-08-23 14:29 639230916449726907
24 ms 147.93.154.51
44 2026-08-23 14:13 639230906595053086
276 ms 147.93.154.51
43 2026-08-23 13:56 639230896680429441
91 ms 147.93.154.51
42 2026-08-23 13:40 639230886630210965
48 ms 147.93.154.51
41 2026-08-23 12:48 639230855430405719
46 ms 147.93.154.51
40 2026-08-23 12:31 639230845707499136
24 ms 147.93.154.51
39 2026-08-23 12:15 639230836186805419
343 ms 147.93.154.51
38 2026-08-23 11:59 639230826493828316
14 ms 147.93.154.51
37 2026-08-23 11:43 639230816817882996
26 ms 147.93.154.51
36 2026-08-23 11:27 639230806933854189
544 ms 147.93.154.51
35 2026-08-23 11:10 639230797120243854
62 ms 147.93.154.51
34 2026-08-23 10:54 639230787310272840
20 ms 147.93.154.51
33 2026-08-23 10:38 639230777600173142
188 ms 147.93.154.51
32 2026-08-23 10:21 639230767665024593
18 ms 147.93.154.51
31 2026-08-23 10:05 639230757720962293
19 ms 147.93.154.51
30 2026-08-23 09:48 639230747722189784
41 ms 147.93.154.51
29 2026-08-23 08:56 639230716313923480
4 ms 147.93.154.51
28 2026-08-23 08:40 639230706813835990
4 ms 147.93.154.51
27 2026-08-23 08:24 639230696871062203
139 ms 147.93.154.51
26 2026-08-23 08:07 639230687142781616
4 ms 147.93.154.51
25 2026-08-23 07:51 639230677432142227
18 ms 147.93.154.51
24 2026-08-23 07:35 639230667686258061
2004 ms 147.93.154.51
23 2026-08-23 07:19 639230658039243685
40 ms 147.93.154.51
22 2026-08-23 07:02 639230648468473803
168 ms 147.93.154.51
21 2026-08-23 06:46 639230638829658294
17 ms 147.93.154.51
20 2026-08-23 06:30 639230629247017617
100 ms 147.93.154.51
19 2026-08-23 06:14 639230619625318239
40 ms 147.93.154.51
18 2026-08-23 05:58 639230609697630264
19 ms 147.93.154.51
17 2026-08-23 05:06 639230578570131864
239 ms 147.93.154.51
16 2026-08-23 04:50 639230568958963168
30 ms 147.93.154.51
15 2026-08-23 04:34 639230559287611211
25 ms 147.93.154.51
14 2026-08-23 04:18 639230549524312030
28 ms 147.93.154.51
13 2026-08-23 04:02 639230539739801669
41 ms 147.93.154.51
12 2026-08-23 03:45 639230530084069375
247 ms 147.93.154.51
11 2026-08-23 03:29 639230520362691441
5 ms 147.93.154.51
10 2026-08-23 03:13 639230510677194518
37 ms 147.93.154.51
9 2026-08-23 02:57 639230501156002646
20 ms 147.93.154.51
8 2026-08-23 02:41 639230491502198541
104 ms 147.93.154.51
7 2026-08-23 02:25 639230481860318494
48 ms 147.93.154.51
6 2026-08-23 02:08 639230471893008575
20 ms 147.93.154.51
5 2026-08-23 01:15 639230440030877421
27 ms 147.93.154.51
4 2026-08-23 00:59 639230430479725508
168 ms 147.93.154.51
3 2026-08-23 00:43 639230420875160219
26 ms 147.93.154.51
2 2026-08-23 00:27 639230411240692575
4045 ms 147.93.154.51
1 2026-08-23 00:11 639230401550806607
22 ms 147.93.154.51