DNS response history for sld1.ns.nic.cz

sld1.ns.nic.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 68 DNS check records, 68 successful responses, 0 failed responses, and 241 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 sld1.ns.nic.cz.
Records on Selected Date

68

Historical checks stored for this nameserver on selected date

Average Latency

241 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-25 23:31

All timestamps shown in UTC

Latest Resolved IP on Selected Date

217.31.207.98

Most recently resolved hosting IP on selected date

Successful Responses

68

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 sld1.ns.nic.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
68 2026-08-25 23:31 639232974980190573
35 ms 217.31.207.98
67 2026-08-25 23:14 639232964577050707
28 ms 217.31.207.98
66 2026-08-25 22:20 639232932163142799
11 ms 217.31.207.98
65 2026-08-25 22:02 639232921673215474
14 ms 217.31.207.98
64 2026-08-25 21:45 639232911234504639
2039 ms 217.31.207.98
63 2026-08-25 21:27 639232900747078453
55 ms 217.31.207.98
62 2026-08-25 21:10 639232890389222534
12 ms 217.31.207.98
61 2026-08-25 20:53 639232880143390843
57 ms 217.31.207.98
60 2026-08-25 20:36 639232869755024069
19 ms 217.31.207.98
59 2026-08-25 20:18 639232859355940346
10 ms 217.31.207.98
58 2026-08-25 20:01 639232848992244953
28 ms 217.31.207.98
57 2026-08-25 19:44 639232838596478500
11 ms 217.31.207.98
56 2026-08-25 19:27 639232828175327683
48 ms 217.31.207.98
55 2026-08-25 19:09 639232817798330473
35 ms 217.31.207.98
54 2026-08-25 18:15 639232785462407552
49 ms 217.31.207.98
53 2026-08-25 17:58 639232775177487032
160 ms 217.31.207.98
52 2026-08-25 17:41 639232764991087115
13 ms 217.31.207.98
51 2026-08-25 17:24 639232754842971478
39 ms 217.31.207.98
50 2026-08-25 17:07 639232744455159107
2043 ms 217.31.207.98
49 2026-08-25 16:50 639232734145178231
18 ms 217.31.207.98
48 2026-08-25 16:33 639232723827874402
29 ms 217.31.207.98
47 2026-08-25 16:15 639232713533011892
17 ms 217.31.207.98
46 2026-08-25 15:58 639232703065318207
26 ms 217.31.207.98
45 2026-08-25 15:41 639232692629559470
22 ms 217.31.207.98
44 2026-08-25 15:23 639232682238836475
119 ms 217.31.207.98
43 2026-08-25 15:06 639232671787004306
4021 ms 217.31.207.98
42 2026-08-25 14:11 639232638994329666
15 ms 217.31.207.98
41 2026-08-25 13:54 639232628614783237
27 ms 217.31.207.98
40 2026-08-25 13:37 639232618360728578
20 ms 217.31.207.98
39 2026-08-25 13:20 639232608016476376
26 ms 217.31.207.98
38 2026-08-25 13:02 639232597643611557
11 ms 217.31.207.98
37 2026-08-25 12:45 639232587225721862
48 ms 217.31.207.98
36 2026-08-25 12:28 639232576780683689
2021 ms 217.31.207.98
35 2026-08-25 12:10 639232566381512620
14 ms 217.31.207.98
34 2026-08-25 11:53 639232556111768563
18 ms 217.31.207.98
33 2026-08-25 11:36 639232545839529039
19 ms 217.31.207.98
32 2026-08-25 11:18 639232535349285207
18 ms 217.31.207.98
31 2026-08-25 11:01 639232524938080723
99 ms 217.31.207.98
30 2026-08-25 10:07 639232492740373468
183 ms 217.31.207.98
29 2026-08-25 09:50 639232482235303141
17 ms 217.31.207.98
28 2026-08-25 09:33 639232471861770303
19 ms 217.31.207.98
27 2026-08-25 09:16 639232461630217327
15 ms 217.31.207.98
26 2026-08-25 08:58 639232451282965990
25 ms 217.31.207.98
25 2026-08-25 08:41 639232440814614938
10 ms 217.31.207.98
24 2026-08-25 08:24 639232430410720425
59 ms 217.31.207.98
23 2026-08-25 08:06 639232420003096185
17 ms 217.31.207.98
22 2026-08-25 07:49 639232409467287444
17 ms 217.31.207.98
21 2026-08-25 07:31 639232399077195997
46 ms 217.31.207.98
20 2026-08-25 07:14 639232388731528337
29 ms 217.31.207.98
19 2026-08-25 06:57 639232378288598612
76 ms 217.31.207.98
18 2026-08-25 06:03 639232346196373643
46 ms 217.31.207.98
17 2026-08-25 05:46 639232336112370741
14 ms 217.31.207.98
16 2026-08-25 05:30 639232326146508970
9 ms 217.31.207.98
15 2026-08-25 05:13 639232316189381720
32 ms 217.31.207.98
14 2026-08-25 04:57 639232306217998913
25 ms 217.31.207.98
13 2026-08-25 04:40 639232296255744174
42 ms 217.31.207.98
12 2026-08-25 04:23 639232286095760789
21 ms 217.31.207.98
11 2026-08-25 04:06 639232276086186273
10 ms 217.31.207.98
10 2026-08-25 03:49 639232265900986425
18 ms 217.31.207.98
9 2026-08-25 03:32 639232255723518075
36 ms 217.31.207.98
8 2026-08-25 03:15 639232245484452890
18 ms 217.31.207.98
7 2026-08-25 02:58 639232235157175331
4031 ms 217.31.207.98
6 2026-08-25 02:05 639232203197189095
34 ms 217.31.207.98
5 2026-08-25 01:48 639232192844564298
9 ms 217.31.207.98
4 2026-08-25 01:30 639232182496008942
157 ms 217.31.207.98
3 2026-08-25 01:13 639232172197053132
21 ms 217.31.207.98
2 2026-08-25 00:20 639232140250307418
16 ms 217.31.207.98
1 2026-08-25 00:03 639232129927860324
34 ms 217.31.207.98