DNS response history for ns.as4u.cz

ns.as4u.cz 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 73 DNS check records, 73 successful responses, 0 failed responses, and 322 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 ns.as4u.cz.
Records on Selected Date

73

Historical checks stored for this nameserver on selected date

Average Latency

322 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-23 23:17

All timestamps shown in UTC

Latest Resolved IP on Selected Date

88.86.100.250

Most recently resolved hosting IP on selected date

Successful Responses

73

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 ns.as4u.cz

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
73 2026-08-23 23:17 639231234893504693
28 ms 88.86.100.250
72 2026-08-23 23:01 639231225024549139
5 ms 88.86.100.250
71 2026-08-23 22:44 639231214931957622
82 ms 88.86.100.250
70 2026-08-23 22:27 639231204962010549
33 ms 88.86.100.250
69 2026-08-23 22:11 639231195170138463
23 ms 88.86.100.250
68 2026-08-23 21:54 639231185235020577
7 ms 88.86.100.250
67 2026-08-23 21:38 639231175558690075
42 ms 88.86.100.250
66 2026-08-23 21:22 639231165610444012
2013 ms 88.86.100.250
65 2026-08-23 20:29 639231133806425363
33 ms 88.86.100.250
64 2026-08-23 20:13 639231124203758023
21 ms 88.86.100.250
63 2026-08-23 19:56 639231114428262706
211 ms 88.86.100.250
62 2026-08-23 19:40 639231104662480065
2046 ms 88.86.100.250
61 2026-08-23 19:24 639231094840372018
19 ms 88.86.100.250
60 2026-08-23 19:07 639231085024583224
22 ms 88.86.100.250
59 2026-08-23 18:51 639231075257417427
29 ms 88.86.100.250
58 2026-08-23 18:35 639231065516009503
76 ms 88.86.100.250
57 2026-08-23 18:19 639231055805348837
3 ms 88.86.100.250
56 2026-08-23 18:02 639231045980373765
104 ms 88.86.100.250
55 2026-08-23 17:46 639231035984577527
61 ms 88.86.100.250
54 2026-08-23 17:29 639231025928115303
55 ms 88.86.100.250
53 2026-08-23 16:36 639230994250157583
48 ms 88.86.100.250
52 2026-08-23 16:20 639230984476411369
20 ms 88.86.100.250
51 2026-08-23 16:04 639230974838373450
21 ms 88.86.100.250
50 2026-08-23 15:48 639230965244277645
55 ms 88.86.100.250
49 2026-08-23 15:31 639230955522101820
15 ms 88.86.100.250
48 2026-08-23 15:15 639230945754521603
2031 ms 88.86.100.250
47 2026-08-23 14:59 639230935852040504
218 ms 88.86.100.250
46 2026-08-23 14:43 639230926222061048
47 ms 88.86.100.250
45 2026-08-23 14:26 639230916449726907
56 ms 88.86.100.250
44 2026-08-23 14:10 639230906595053086
8 ms 88.86.100.250
43 2026-08-23 13:53 639230896680429441
14 ms 88.86.100.250
42 2026-08-23 13:37 639230886630210965
53 ms 88.86.100.250
41 2026-08-23 12:45 639230855430405719
138 ms 88.86.100.250
40 2026-08-23 12:29 639230845707499136
25 ms 88.86.100.250
39 2026-08-23 12:13 639230836186805419
3 ms 88.86.100.250
38 2026-08-23 11:56 639230826493828316
2 ms 88.86.100.250
37 2026-08-23 11:40 639230816817882996
27 ms 88.86.100.250
36 2026-08-23 11:24 639230806933854189
28 ms 88.86.100.250
35 2026-08-23 11:07 639230797120243854
4 ms 88.86.100.250
34 2026-08-23 10:51 639230787310272840
30 ms 88.86.100.250
33 2026-08-23 10:35 639230777600173142
2059 ms 88.86.100.250
32 2026-08-23 10:18 639230767665024593
65 ms 88.86.100.250
31 2026-08-23 10:02 639230757720962293
42 ms 88.86.100.250
30 2026-08-23 09:45 639230747722189784
29 ms 88.86.100.250
29 2026-08-23 08:53 639230716313923480
2011 ms 88.86.100.250
28 2026-08-23 08:37 639230706813835990
27 ms 88.86.100.250
27 2026-08-23 08:21 639230696871062203
149 ms 88.86.100.250
26 2026-08-23 08:04 639230687142781616
70 ms 88.86.100.250
25 2026-08-23 07:48 639230677432142227
59 ms 88.86.100.250
24 2026-08-23 07:32 639230667686258061
19 ms 88.86.100.250
23 2026-08-23 07:16 639230658039243685
36 ms 88.86.100.250
22 2026-08-23 07:00 639230648468473803
43 ms 88.86.100.250
21 2026-08-23 06:44 639230638829658294
7 ms 88.86.100.250
20 2026-08-23 06:28 639230629247017617
23 ms 88.86.100.250
19 2026-08-23 06:12 639230619625318239
30 ms 88.86.100.250
18 2026-08-23 05:55 639230609697630264
2026 ms 88.86.100.250
17 2026-08-23 05:03 639230578570131864
43 ms 88.86.100.250
16 2026-08-23 04:47 639230568958963168
17 ms 88.86.100.250
15 2026-08-23 04:31 639230559287611211
5 ms 88.86.100.250
14 2026-08-23 04:15 639230549524312030
47 ms 88.86.100.250
13 2026-08-23 03:59 639230539739801669
32 ms 88.86.100.250
12 2026-08-23 03:42 639230530084069375
48 ms 88.86.100.250
11 2026-08-23 03:26 639230520362691441
2386 ms 88.86.100.250
10 2026-08-23 03:10 639230510677194518
35 ms 88.86.100.250
9 2026-08-23 02:54 639230501156002646
2051 ms 88.86.100.250
8 2026-08-23 02:38 639230491502198541
46 ms 88.86.100.250
7 2026-08-23 02:22 639230481860318494
8 ms 88.86.100.250
6 2026-08-23 02:05 639230471893008575
46 ms 88.86.100.250
5 2026-08-23 01:12 639230440030877421
2040 ms 88.86.100.250
4 2026-08-23 00:56 639230430479725508
2013 ms 88.86.100.250
3 2026-08-23 00:40 639230420875160219
159 ms 88.86.100.250
2 2026-08-23 00:24 639230411240692575
29 ms 88.86.100.250
1 2026-08-23 00:08 639230401550806607
23 ms 88.86.100.250