DNS response history for ns1.s21-dev.com

ns1.s21-dev.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 2026-08-23. For this date, NameServerHistory found 75 DNS check records, 75 successful responses, 0 failed responses, and 306 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.s21-dev.com.
Records on Selected Date

75

Historical checks stored for this nameserver on selected date

Average Latency

306 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-23 23:57

All timestamps shown in UTC

Latest Resolved IP on Selected Date

166.78.37.69

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 ns1.s21-dev.com

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 23:57 639231254406598736
3 ms 166.78.37.69
74 2026-08-23 23:40 639231244697865594
4 ms 166.78.37.69
73 2026-08-23 23:24 639231234893504693
541 ms 166.78.37.69
72 2026-08-23 23:08 639231225024549139
2 ms 166.78.37.69
71 2026-08-23 22:51 639231214931957622
263 ms 166.78.37.69
70 2026-08-23 22:34 639231204962010549
3 ms 166.78.37.69
69 2026-08-23 22:18 639231195170138463
4 ms 166.78.37.69
68 2026-08-23 22:02 639231185235020577
3 ms 166.78.37.69
67 2026-08-23 21:45 639231175558690075
2 ms 166.78.37.69
66 2026-08-23 21:29 639231165610444012
4 ms 166.78.37.69
65 2026-08-23 20:36 639231133806425363
551 ms 166.78.37.69
64 2026-08-23 20:20 639231124203758023
8 ms 166.78.37.69
63 2026-08-23 20:03 639231114428262706
236 ms 166.78.37.69
62 2026-08-23 19:47 639231104662480065
573 ms 166.78.37.69
61 2026-08-23 19:31 639231094840372018
5 ms 166.78.37.69
60 2026-08-23 19:15 639231085024583224
539 ms 166.78.37.69
59 2026-08-23 18:58 639231075257417427
131 ms 166.78.37.69
58 2026-08-23 18:42 639231065516009503
3 ms 166.78.37.69
57 2026-08-23 18:26 639231055805348837
257 ms 166.78.37.69
56 2026-08-23 18:09 639231045980373765
3 ms 166.78.37.69
55 2026-08-23 17:53 639231035984577527
139 ms 166.78.37.69
54 2026-08-23 17:36 639231025928115303
3 ms 166.78.37.69
53 2026-08-23 16:43 639230994250157583
249 ms 166.78.37.69
52 2026-08-23 16:27 639230984476411369
7 ms 166.78.37.69
51 2026-08-23 16:11 639230974838373450
3 ms 166.78.37.69
50 2026-08-23 15:55 639230965244277645
4 ms 166.78.37.69
49 2026-08-23 15:38 639230955522101820
3 ms 166.78.37.69
48 2026-08-23 15:22 639230945754521603
586 ms 166.78.37.69
47 2026-08-23 15:06 639230935852040504
3 ms 166.78.37.69
46 2026-08-23 14:49 639230926222061048
556 ms 166.78.37.69
45 2026-08-23 14:33 639230916449726907
555 ms 166.78.37.69
44 2026-08-23 14:17 639230906595053086
545 ms 166.78.37.69
43 2026-08-23 14:00 639230896680429441
4 ms 166.78.37.69
42 2026-08-23 13:44 639230886630210965
261 ms 166.78.37.69
41 2026-08-23 12:52 639230855430405719
552 ms 166.78.37.69
40 2026-08-23 12:36 639230845707499136
18 ms 166.78.37.69
39 2026-08-23 12:19 639230836186805419
573 ms 166.78.37.69
38 2026-08-23 12:03 639230826493828316
541 ms 166.78.37.69
37 2026-08-23 11:47 639230816817882996
7 ms 166.78.37.69
36 2026-08-23 11:31 639230806933854189
544 ms 166.78.37.69
35 2026-08-23 11:14 639230797120243854
344 ms 166.78.37.69
34 2026-08-23 10:58 639230787310272840
541 ms 166.78.37.69
33 2026-08-23 10:42 639230777600173142
557 ms 166.78.37.69
32 2026-08-23 10:26 639230767665024593
545 ms 166.78.37.69
31 2026-08-23 10:09 639230757720962293
561 ms 166.78.37.69
30 2026-08-23 09:52 639230747722189784
4 ms 166.78.37.69
29 2026-08-23 09:00 639230716313923480
4 ms 166.78.37.69
28 2026-08-23 08:44 639230706813835990
545 ms 166.78.37.69
27 2026-08-23 08:28 639230696871062203
548 ms 166.78.37.69
26 2026-08-23 08:11 639230687142781616
4249 ms 166.78.37.69
25 2026-08-23 07:55 639230677432142227
3 ms 166.78.37.69
24 2026-08-23 07:39 639230667686258061
2 ms 166.78.37.69
23 2026-08-23 07:23 639230658039243685
3 ms 166.78.37.69
22 2026-08-23 07:07 639230648468473803
557 ms 166.78.37.69
21 2026-08-23 06:50 639230638829658294
247 ms 166.78.37.69
20 2026-08-23 06:34 639230629247017617
3 ms 166.78.37.69
19 2026-08-23 06:18 639230619625318239
3 ms 166.78.37.69
18 2026-08-23 06:02 639230609697630264
2 ms 166.78.37.69
17 2026-08-23 05:10 639230578570131864
250 ms 166.78.37.69
16 2026-08-23 04:54 639230568958963168
262 ms 166.78.37.69
15 2026-08-23 04:38 639230559287611211
3 ms 166.78.37.69
14 2026-08-23 04:22 639230549524312030
4 ms 166.78.37.69
13 2026-08-23 04:06 639230539739801669
2 ms 166.78.37.69
12 2026-08-23 03:49 639230530084069375
550 ms 166.78.37.69
11 2026-08-23 03:33 639230520362691441
705 ms 166.78.37.69
10 2026-08-23 03:17 639230510677194518
702 ms 166.78.37.69
9 2026-08-23 03:01 639230501156002646
3 ms 166.78.37.69
8 2026-08-23 02:45 639230491502198541
549 ms 166.78.37.69
7 2026-08-23 02:29 639230481860318494
3 ms 166.78.37.69
6 2026-08-23 02:13 639230471893008575
2 ms 166.78.37.69
5 2026-08-23 01:19 639230440030877421
550 ms 166.78.37.69
4 2026-08-23 01:03 639230430479725508
2 ms 166.78.37.69
3 2026-08-23 00:47 639230420875160219
3 ms 166.78.37.69
2 2026-08-23 00:31 639230411240692575
2254 ms 166.78.37.69
1 2026-08-23 00:15 639230401550806607
131 ms 166.78.37.69