DNS response history for sys005.zserver.cz

sys005.zserver.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 2026-08-12. For this date, NameServerHistory found 62 DNS check records, 60 successful responses, 2 failed responses, and 142 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 sys005.zserver.cz.
Records on Selected Date

62

Historical checks stored for this nameserver on selected date

Average Latency

142 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-12 23:53

All timestamps shown in UTC

Latest Resolved IP on Selected Date

37.187.249.168

Most recently resolved hosting IP on selected date

Successful Responses

60

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 sys005.zserver.cz

Showing DNS history for 2026-08-12 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
62 2026-08-12 23:53 639221753022017039
100 ms 37.187.249.168
61 2026-08-12 23:38 639221744107644868
37 ms 37.187.249.168
60 2026-08-12 23:23 639221735030187244
23 ms 37.187.249.168
59 2026-08-12 23:08 639221725815508109
25 ms 37.187.249.168
58 2026-08-12 22:17 639221694790955973
26 ms 37.187.249.168
57 2026-08-12 22:02 639221685562451720
20 ms 37.187.249.168
56 2026-08-12 21:46 639221676023655289
24 ms 37.187.249.168
55 2026-08-12 21:30 639221666449119409
17 ms 37.187.249.168
54 2026-08-12 20:38 639221635456432556
110 ms 37.187.249.168
53 2026-08-12 20:23 639221626313054202
68 ms 37.187.249.168
52 2026-08-12 20:07 639221617091958857
36 ms 37.187.249.168
51 2026-08-12 19:52 639221607786737151
32 ms 37.187.249.168
50 2026-08-12 19:00 639221576664330059
24 ms 37.187.249.168
49 2026-08-12 18:45 639221567514216674
18 ms 37.187.249.168
48 2026-08-12 18:29 639221558399762524
23 ms 37.187.249.168
47 2026-08-12 18:14 639221549052016282
42 ms 37.187.249.168
46 2026-08-12 17:22 639221517673834934
37 ms 37.187.249.168
45 2026-08-12 17:07 639221508282311633
37 ms 37.187.249.168
44 2026-08-12 16:51 639221498786324983
22 ms 37.187.249.168
43 2026-08-12 16:35 639221489157589737
20 ms 37.187.249.168
42 2026-08-12 15:42 639221457655914645
37 ms 37.187.249.168
41 2026-08-12 15:27 639221448164090526
16 ms 37.187.249.168
40 2026-08-12 15:11 639221438725783630
16 ms 37.187.249.168
39 2026-08-12 14:55 639221429178071087
45 ms 37.187.249.168
38 2026-08-12 14:02 639221397761278719
30 ms 37.187.249.168
37 2026-08-12 13:47 639221388200567278
21 ms 37.187.249.168
36 2026-08-12 13:30 639221378483570949
53 ms 37.187.249.168
35 2026-08-12 13:14 639221368872360139
22 ms 37.187.249.168
34 2026-08-12 12:20 639221337226647415
44 ms 37.187.249.168
33 2026-08-12 12:05 639221327924087446
38 ms 37.187.249.168
32 2026-08-12 11:48 639221318096976375
43 ms 37.187.249.168
31 2026-08-12 11:32 639221308343145274
29 ms 37.187.249.168
30 2026-08-12 10:40 639221277089610470
-
29 2026-08-12 10:24 639221267628136359
17 ms 37.187.249.168
28 2026-08-12 10:08 639221257907569952
42 ms 37.187.249.168
27 2026-08-12 09:52 639221248402420965
2026 ms 37.187.249.168
26 2026-08-12 08:59 639221216797540533
161 ms 37.187.249.168
25 2026-08-12 08:44 639221207385792352
34 ms 37.187.249.168
24 2026-08-12 08:28 639221198078534844
72 ms 37.187.249.168
23 2026-08-12 08:13 639221188677585577
37 ms 37.187.249.168
22 2026-08-12 07:19 639221157276484143
190 ms 37.187.249.168
21 2026-08-12 07:03 639221147876262183
17 ms 37.187.249.168
20 2026-08-12 06:47 639221138388812469
66 ms 37.187.249.168
19 2026-08-12 06:32 639221128987381118
40 ms 37.187.249.168
18 2026-08-12 05:40 639221097816416095
-
17 2026-08-12 05:24 639221088508065616
2034 ms 37.187.249.168
16 2026-08-12 05:09 639221079092308503
34 ms 37.187.249.168
15 2026-08-12 04:53 639221069595873597
36 ms 37.187.249.168
14 2026-08-12 04:01 639221038601577496
49 ms 37.187.249.168
13 2026-08-12 03:46 639221029533901299
122 ms 37.187.249.168
12 2026-08-12 03:30 639221020333828965
37 ms 37.187.249.168
11 2026-08-12 03:15 639221011110510484
45 ms 37.187.249.168
10 2026-08-12 02:23 639220979815209769
31 ms 37.187.249.168
9 2026-08-12 02:08 639220970971410921
28 ms 37.187.249.168
8 2026-08-12 01:53 639220961848982361
18 ms 37.187.249.168
7 2026-08-12 01:38 639220952784591501
2014 ms 37.187.249.168
6 2026-08-12 01:23 639220943893596731
17 ms 37.187.249.168
5 2026-08-12 01:08 639220934954704520
42 ms 37.187.249.168
4 2026-08-12 00:53 639220925792457751
36 ms 37.187.249.168
3 2026-08-12 00:38 639220916610063538
55 ms 37.187.249.168
2 2026-08-12 00:22 639220907229361754
41 ms 37.187.249.168
1 2026-08-12 00:07 639220897896762127
32 ms 37.187.249.168