DNS response history for ns2.open-it.cz

ns2.open-it.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 2026-08-25. For this date, NameServerHistory found 64 DNS check records, 62 successful responses, 2 failed responses, and 289 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 ns2.open-it.cz.
Records on Selected Date

64

Historical checks stored for this nameserver on selected date

Average Latency

289 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-25 21:50

All timestamps shown in UTC

Latest Resolved IP on Selected Date

164.215.121.182

Most recently resolved hosting IP on selected date

Successful Responses

62

Checks that returned a measurable response

Failed Responses

2

Checks with no response or no returned latency

Failure Rate

3%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for ns2.open-it.cz

Showing DNS history for 2026-08-25 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
64 2026-08-25 21:50 639232911234504639
356 ms 164.215.121.182
63 2026-08-25 21:33 639232900747078453
143 ms 164.215.121.182
62 2026-08-25 21:15 639232890389222534
27 ms 164.215.121.182
61 2026-08-25 20:58 639232880143390843
41 ms 164.215.121.182
60 2026-08-25 20:41 639232869755024069
47 ms 164.215.121.182
59 2026-08-25 20:24 639232859355940346
499 ms 164.215.121.182
58 2026-08-25 20:06 639232848992244953
387 ms 164.215.121.182
57 2026-08-25 19:49 639232838596478500
358 ms 164.215.121.182
56 2026-08-25 19:32 639232828175327683
38 ms 164.215.121.182
55 2026-08-25 19:14 639232817798330473
26 ms 164.215.121.182
54 2026-08-25 18:20 639232785462407552
98 ms 164.215.121.182
53 2026-08-25 18:03 639232775177487032
2009 ms 164.215.121.182
52 2026-08-25 17:46 639232764991087115
16 ms 164.215.121.182
51 2026-08-25 17:29 639232754842971478
575 ms 164.215.121.182
50 2026-08-25 17:12 639232744455159107
55 ms 164.215.121.182
49 2026-08-25 16:55 639232734145178231
488 ms 164.215.121.182
48 2026-08-25 16:38 639232723827874402
67 ms 164.215.121.182
47 2026-08-25 16:21 639232713533011892
332 ms 164.215.121.182
46 2026-08-25 16:03 639232703065318207
269 ms 164.215.121.182
45 2026-08-25 15:46 639232692629559470
141 ms 164.215.121.182
44 2026-08-25 15:28 639232682238836475
20 ms 164.215.121.182
43 2026-08-25 15:11 639232671787004306
62 ms 164.215.121.182
42 2026-08-25 14:16 639232638994329666
34 ms 164.215.121.182
41 2026-08-25 13:59 639232628614783237
56 ms 164.215.121.182
40 2026-08-25 13:42 639232618360728578
54 ms 164.215.121.182
39 2026-08-25 13:25 639232608016476376
54 ms 164.215.121.182
38 2026-08-25 13:07 639232597643611557
293 ms 164.215.121.182
37 2026-08-25 12:50 639232587225721862
55 ms 164.215.121.182
36 2026-08-25 12:33 639232576780683689
304 ms 164.215.121.182
35 2026-08-25 12:15 639232566381512620
110 ms 164.215.121.182
34 2026-08-25 11:58 639232556111768563
30 ms 164.215.121.182
33 2026-08-25 11:41 639232545839529039
56 ms 164.215.121.182
32 2026-08-25 11:24 639232535349285207
2034 ms 164.215.121.182
31 2026-08-25 11:06 639232524938080723
338 ms 164.215.121.182
30 2026-08-25 10:13 639232492740373468
2018 ms 164.215.121.182
29 2026-08-25 09:55 639232482235303141
339 ms 164.215.121.182
28 2026-08-25 09:38 639232471861770303
124 ms 164.215.121.182
27 2026-08-25 09:21 639232461630217327
-
26 2026-08-25 09:03 639232451282965990
50 ms 164.215.121.182
25 2026-08-25 08:46 639232440814614938
516 ms 164.215.121.182
24 2026-08-25 08:29 639232430410720425
236 ms 164.215.121.182
23 2026-08-25 08:11 639232420003096185
44 ms 164.215.121.182
22 2026-08-25 07:54 639232409467287444
19 ms 164.215.121.182
21 2026-08-25 07:37 639232399077195997
-
20 2026-08-25 07:19 639232388731528337
539 ms 164.215.121.182
19 2026-08-25 07:02 639232378288598612
42 ms 164.215.121.182
18 2026-08-25 06:08 639232346196373643
85 ms 164.215.121.182
17 2026-08-25 05:52 639232336112370741
226 ms 164.215.121.182
16 2026-08-25 05:35 639232326146508970
19 ms 164.215.121.182
15 2026-08-25 05:18 639232316189381720
353 ms 164.215.121.182
14 2026-08-25 05:02 639232306217998913
2092 ms 164.215.121.182
13 2026-08-25 04:45 639232296255744174
36 ms 164.215.121.182
12 2026-08-25 04:28 639232286095760789
127 ms 164.215.121.182
11 2026-08-25 04:11 639232276086186273
45 ms 164.215.121.182
10 2026-08-25 03:55 639232265900986425
136 ms 164.215.121.182
9 2026-08-25 03:38 639232255723518075
60 ms 164.215.121.182
8 2026-08-25 03:21 639232245484452890
350 ms 164.215.121.182
7 2026-08-25 03:03 639232235157175331
11 ms 164.215.121.182
6 2026-08-25 02:10 639232203197189095
54 ms 164.215.121.182
5 2026-08-25 01:53 639232192844564298
536 ms 164.215.121.182
4 2026-08-25 01:36 639232182496008942
34 ms 164.215.121.182
3 2026-08-25 01:18 639232172197053132
66 ms 164.215.121.182
2 2026-08-25 00:25 639232140250307418
37 ms 164.215.121.182
1 2026-08-25 00:08 639232129927860324
282 ms 164.215.121.182