DNS response history for ns-us.sofist.cz

ns-us.sofist.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 2026-08-21. For this date, NameServerHistory found 73 DNS check records, 72 successful responses, 1 failed responses, and 381 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-us.sofist.cz.
Records on Selected Date

73

Historical checks stored for this nameserver on selected date

Average Latency

381 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-21 23:52

All timestamps shown in UTC

Latest Resolved IP on Selected Date

212.28.184.4

Most recently resolved hosting IP on selected date

Successful Responses

72

Checks that returned a measurable response

Failed Responses

1

Checks with no response or no returned latency

Failure Rate

1%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for ns-us.sofist.cz

Showing DNS history for 2026-08-21 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 2026-08-21 23:52 639229527598660841
38 ms 212.28.184.4
72 2026-08-21 23:36 639229517954323214
66 ms 212.28.184.4
71 2026-08-21 23:20 639229508269999021
164 ms 212.28.184.4
70 2026-08-21 23:04 639229498559060171
167 ms 212.28.184.4
69 2026-08-21 22:47 639229488519347586
4191 ms 212.28.184.4
68 2026-08-21 21:54 639229456606578934
178 ms 212.28.184.4
67 2026-08-21 21:38 639229446985772499
169 ms 212.28.184.4
66 2026-08-21 21:22 639229437367313098
160 ms 212.28.184.4
65 2026-08-21 21:06 639229427923950391
285 ms 212.28.184.4
64 2026-08-21 20:50 639229418168588854
2049 ms 212.28.184.4
63 2026-08-21 20:34 639229408345678334
157 ms 212.28.184.4
62 2026-08-21 20:17 639229398616354648
42 ms 212.28.184.4
61 2026-08-21 20:01 639229388634592323
166 ms 212.28.184.4
60 2026-08-21 19:45 639229378792837692
143 ms 212.28.184.4
59 2026-08-21 19:28 639229369154682311
36 ms 212.28.184.4
58 2026-08-21 19:12 639229359248017926
141 ms 212.28.184.4
57 2026-08-21 18:55 639229349124294642
56 ms 212.28.184.4
56 2026-08-21 18:03 639229317791715692
56 ms 212.28.184.4
55 2026-08-21 17:47 639229308115194575
47 ms 212.28.184.4
54 2026-08-21 17:30 639229298320320558
38 ms 212.28.184.4
53 2026-08-21 17:14 639229288674863221
-
52 2026-08-21 16:58 639229278983677079
168 ms 212.28.184.4
51 2026-08-21 16:42 639229269405517175
47 ms 212.28.184.4
50 2026-08-21 16:26 639229259594798244
58 ms 212.28.184.4
49 2026-08-21 16:09 639229249736681188
2148 ms 212.28.184.4
48 2026-08-21 15:53 639229239699417787
86 ms 212.28.184.4
47 2026-08-21 15:36 639229229621964033
147 ms 212.28.184.4
46 2026-08-21 15:19 639229219567270965
92 ms 212.28.184.4
45 2026-08-21 15:02 639229209406666856
48 ms 212.28.184.4
44 2026-08-21 14:09 639229177815876178
66 ms 212.28.184.4
43 2026-08-21 13:53 639229168243572685
2381 ms 212.28.184.4
42 2026-08-21 13:37 639229158599856475
42 ms 212.28.184.4
41 2026-08-21 13:21 639229148998940902
38 ms 212.28.184.4
40 2026-08-21 13:05 639229139276923594
55 ms 212.28.184.4
39 2026-08-21 12:49 639229129709912394
132 ms 212.28.184.4
38 2026-08-21 12:33 639229119801488500
35 ms 212.28.184.4
37 2026-08-21 12:17 639229110135262458
2131 ms 212.28.184.4
36 2026-08-21 12:00 639229100336051392
324 ms 212.28.184.4
35 2026-08-21 11:44 639229090641415626
38 ms 212.28.184.4
34 2026-08-21 11:28 639229080702683947
258 ms 212.28.184.4
33 2026-08-21 11:11 639229070601456699
152 ms 212.28.184.4
32 2026-08-21 10:18 639229038947447232
41 ms 212.28.184.4
31 2026-08-21 10:02 639229029268708773
2048 ms 212.28.184.4
30 2026-08-21 09:46 639229019647910603
47 ms 212.28.184.4
29 2026-08-21 09:30 639229009983843738
42 ms 212.28.184.4
28 2026-08-21 09:13 639229000203331882
160 ms 212.28.184.4
27 2026-08-21 08:57 639228990302335999
145 ms 212.28.184.4
26 2026-08-21 08:41 639228980567740722
128 ms 212.28.184.4
25 2026-08-21 08:24 639228970762445174
138 ms 212.28.184.4
24 2026-08-21 08:08 639228961065054445
2142 ms 212.28.184.4
23 2026-08-21 07:52 639228951224649885
154 ms 212.28.184.4
22 2026-08-21 07:35 639228941303864592
2023 ms 212.28.184.4
21 2026-08-21 07:18 639228931191328583
68 ms 212.28.184.4
20 2026-08-21 06:26 639228899518173317
46 ms 212.28.184.4
19 2026-08-21 06:09 639228889785027669
46 ms 212.28.184.4
18 2026-08-21 05:53 639228880106330161
52 ms 212.28.184.4
17 2026-08-21 05:37 639228870316184091
43 ms 212.28.184.4
16 2026-08-21 05:21 639228860695366512
211 ms 212.28.184.4
15 2026-08-21 05:05 639228851027209500
34 ms 212.28.184.4
14 2026-08-21 04:49 639228841479265462
37 ms 212.28.184.4
13 2026-08-21 04:33 639228831752962260
48 ms 212.28.184.4
12 2026-08-21 04:16 639228821953295483
89 ms 212.28.184.4
11 2026-08-21 04:00 639228812227429953
191 ms 212.28.184.4
10 2026-08-21 03:44 639228802476107538
38 ms 212.28.184.4
9 2026-08-21 03:27 639228792525492032
48 ms 212.28.184.4
8 2026-08-21 02:35 639228761131421385
2033 ms 212.28.184.4
7 2026-08-21 02:19 639228751571206692
46 ms 212.28.184.4
6 2026-08-21 02:03 639228741705571019
35 ms 212.28.184.4
5 2026-08-21 01:46 639228731642208228
153 ms 212.28.184.4
4 2026-08-21 00:54 639228700387002072
229 ms 212.28.184.4
3 2026-08-21 00:38 639228690742014433
41 ms 212.28.184.4
2 2026-08-21 00:21 639228680877937122
56 ms 212.28.184.4
1 2026-08-21 00:04 639228670775860800
49 ms 212.28.184.4