DNS response history for ns1.internet1.cz

ns1.internet1.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 65 DNS check records, 64 successful responses, 1 failed responses, and 67 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.internet1.cz.
Records on Selected Date

65

Historical checks stored for this nameserver on selected date

Average Latency

67 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-25 22:08

All timestamps shown in UTC

Latest Resolved IP on Selected Date

109.248.251.51

Most recently resolved hosting IP on selected date

Successful Responses

64

Checks that returned a measurable response

Failed Responses

1

Checks with no response or no returned latency

Failure Rate

2%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for ns1.internet1.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
65 2026-08-25 22:08 639232921673215474
72 ms 109.248.251.51
64 2026-08-25 21:50 639232911234504639
55 ms 109.248.251.51
63 2026-08-25 21:33 639232900747078453
59 ms 109.248.251.51
62 2026-08-25 21:16 639232890389222534
41 ms 109.248.251.51
61 2026-08-25 20:59 639232880143390843
69 ms 109.248.251.51
60 2026-08-25 20:41 639232869755024069
82 ms 109.248.251.51
59 2026-08-25 20:24 639232859355940346
170 ms 109.248.251.51
58 2026-08-25 20:07 639232848992244953
24 ms 109.248.251.51
57 2026-08-25 19:49 639232838596478500
107 ms 109.248.251.51
56 2026-08-25 19:32 639232828175327683
56 ms 109.248.251.51
55 2026-08-25 19:15 639232817798330473
98 ms 109.248.251.51
54 2026-08-25 18:21 639232785462407552
41 ms 109.248.251.51
53 2026-08-25 18:04 639232775177487032
-
52 2026-08-25 17:47 639232764991087115
76 ms 109.248.251.51
51 2026-08-25 17:30 639232754842971478
129 ms 109.248.251.51
50 2026-08-25 17:12 639232744455159107
20 ms 109.248.251.51
49 2026-08-25 16:55 639232734145178231
53 ms 109.248.251.51
48 2026-08-25 16:38 639232723827874402
6 ms 109.248.251.51
47 2026-08-25 16:21 639232713533011892
318 ms 109.248.251.51
46 2026-08-25 16:04 639232703065318207
13 ms 109.248.251.51
45 2026-08-25 15:46 639232692629559470
110 ms 109.248.251.51
44 2026-08-25 15:29 639232682238836475
16 ms 109.248.251.51
43 2026-08-25 15:11 639232671787004306
38 ms 109.248.251.51
42 2026-08-25 14:17 639232638994329666
50 ms 109.248.251.51
41 2026-08-25 13:59 639232628614783237
54 ms 109.248.251.51
40 2026-08-25 13:42 639232618360728578
59 ms 109.248.251.51
39 2026-08-25 13:25 639232608016476376
131 ms 109.248.251.51
38 2026-08-25 13:08 639232597643611557
51 ms 109.248.251.51
37 2026-08-25 12:50 639232587225721862
58 ms 109.248.251.51
36 2026-08-25 12:33 639232576780683689
61 ms 109.248.251.51
35 2026-08-25 12:16 639232566381512620
76 ms 109.248.251.51
34 2026-08-25 11:58 639232556111768563
88 ms 109.248.251.51
33 2026-08-25 11:41 639232545839529039
52 ms 109.248.251.51
32 2026-08-25 11:24 639232535349285207
92 ms 109.248.251.51
31 2026-08-25 11:07 639232524938080723
24 ms 109.248.251.51
30 2026-08-25 10:13 639232492740373468
53 ms 109.248.251.51
29 2026-08-25 09:56 639232482235303141
65 ms 109.248.251.51
28 2026-08-25 09:38 639232471861770303
66 ms 109.248.251.51
27 2026-08-25 09:21 639232461630217327
39 ms 109.248.251.51
26 2026-08-25 09:04 639232451282965990
115 ms 109.248.251.51
25 2026-08-25 08:46 639232440814614938
11 ms 109.248.251.51
24 2026-08-25 08:29 639232430410720425
77 ms 109.248.251.51
23 2026-08-25 08:12 639232420003096185
49 ms 109.248.251.51
22 2026-08-25 07:54 639232409467287444
47 ms 109.248.251.51
21 2026-08-25 07:37 639232399077195997
66 ms 109.248.251.51
20 2026-08-25 07:20 639232388731528337
128 ms 109.248.251.51
19 2026-08-25 07:02 639232378288598612
54 ms 109.248.251.51
18 2026-08-25 06:09 639232346196373643
49 ms 109.248.251.51
17 2026-08-25 05:52 639232336112370741
73 ms 109.248.251.51
16 2026-08-25 05:35 639232326146508970
45 ms 109.248.251.51
15 2026-08-25 05:19 639232316189381720
19 ms 109.248.251.51
14 2026-08-25 05:02 639232306217998913
7 ms 109.248.251.51
13 2026-08-25 04:45 639232296255744174
27 ms 109.248.251.51
12 2026-08-25 04:29 639232286095760789
27 ms 109.248.251.51
11 2026-08-25 04:12 639232276086186273
40 ms 109.248.251.51
10 2026-08-25 03:55 639232265900986425
66 ms 109.248.251.51
9 2026-08-25 03:38 639232255723518075
25 ms 109.248.251.51
8 2026-08-25 03:21 639232245484452890
71 ms 109.248.251.51
7 2026-08-25 03:04 639232235157175331
195 ms 109.248.251.51
6 2026-08-25 02:10 639232203197189095
143 ms 109.248.251.51
5 2026-08-25 01:53 639232192844564298
41 ms 109.248.251.51
4 2026-08-25 01:36 639232182496008942
46 ms 109.248.251.51
3 2026-08-25 01:19 639232172197053132
65 ms 109.248.251.51
2 2026-08-25 00:25 639232140250307418
28 ms 109.248.251.51
1 2026-08-25 00:08 639232129927860324
104 ms 109.248.251.51