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 2026-08-15. For this date, NameServerHistory found 77 DNS check records, 77 successful responses, 0 failed responses, and 260 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

77

Historical checks stored for this nameserver on selected date

Average Latency

260 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-15 23:59

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

77

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 sys005.zserver.cz

Showing DNS history for 2026-08-15 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
77 2026-08-15 23:59 639224347685767174
2153 ms 37.187.249.168
76 2026-08-15 23:43 639224338276675277
44 ms 37.187.249.168
75 2026-08-15 22:51 639224306594546649
169 ms 37.187.249.168
74 2026-08-15 22:35 639224297145423303
71 ms 37.187.249.168
73 2026-08-15 22:19 639224287678238833
28 ms 37.187.249.168
72 2026-08-15 22:04 639224278490872828
201 ms 37.187.249.168
71 2026-08-15 21:49 639224269149307826
20 ms 37.187.249.168
70 2026-08-15 21:33 639224259868597616
150 ms 37.187.249.168
69 2026-08-15 21:17 639224250518642175
147 ms 37.187.249.168
68 2026-08-15 21:02 639224241064772383
55 ms 37.187.249.168
67 2026-08-15 20:46 639224231691099605
2015 ms 37.187.249.168
66 2026-08-15 20:31 639224222468168159
47 ms 37.187.249.168
65 2026-08-15 20:15 639224213173899635
202 ms 37.187.249.168
64 2026-08-15 20:00 639224203914451783
45 ms 37.187.249.168
63 2026-08-15 19:07 639224172202542163
26 ms 37.187.249.168
62 2026-08-15 18:52 639224163338654093
152 ms 37.187.249.168
61 2026-08-15 18:37 639224154287995374
2015 ms 37.187.249.168
60 2026-08-15 18:22 639224145118612503
31 ms 37.187.249.168
59 2026-08-15 18:06 639224135995990731
2069 ms 37.187.249.168
58 2026-08-15 17:52 639224127185332624
16 ms 37.187.249.168
57 2026-08-15 17:37 639224118229289175
32 ms 37.187.249.168
56 2026-08-15 17:22 639224109273796359
39 ms 37.187.249.168
55 2026-08-15 17:07 639224100490805608
19 ms 37.187.249.168
54 2026-08-15 16:52 639224091353714490
58 ms 37.187.249.168
53 2026-08-15 16:36 639224082033126828
23 ms 37.187.249.168
52 2026-08-15 16:21 639224072736962403
62 ms 37.187.249.168
51 2026-08-15 15:29 639224041475563754
203 ms 37.187.249.168
50 2026-08-15 15:14 639224032345604453
31 ms 37.187.249.168
49 2026-08-15 14:58 639224023169497283
23 ms 37.187.249.168
48 2026-08-15 14:43 639224013981146405
68 ms 37.187.249.168
47 2026-08-15 14:28 639224004883412586
34 ms 37.187.249.168
46 2026-08-15 14:13 639223995612880615
43 ms 37.187.249.168
45 2026-08-15 13:57 639223986271830789
35 ms 37.187.249.168
44 2026-08-15 13:41 639223977005780949
2016 ms 37.187.249.168
43 2026-08-15 13:26 639223967653137793
21 ms 37.187.249.168
42 2026-08-15 13:10 639223958286010799
45 ms 37.187.249.168
41 2026-08-15 12:55 639223948936108345
46 ms 37.187.249.168
40 2026-08-15 12:39 639223939673066880
16 ms 37.187.249.168
39 2026-08-15 11:47 639223908317760530
100 ms 37.187.249.168
38 2026-08-15 11:32 639223898992594258
57 ms 37.187.249.168
37 2026-08-15 11:16 639223889761312823
27 ms 37.187.249.168
36 2026-08-15 11:01 639223880359273507
56 ms 37.187.249.168
35 2026-08-15 10:45 639223870920466808
107 ms 37.187.249.168
34 2026-08-15 10:30 639223861579762179
52 ms 37.187.249.168
33 2026-08-15 10:14 639223852238616009
62 ms 37.187.249.168
32 2026-08-15 09:59 639223843019815620
109 ms 37.187.249.168
31 2026-08-15 09:43 639223833669915012
37 ms 37.187.249.168
30 2026-08-15 09:28 639223824494613222
49 ms 37.187.249.168
29 2026-08-15 09:12 639223815116325293
39 ms 37.187.249.168
28 2026-08-15 08:56 639223805493870221
32 ms 37.187.249.168
27 2026-08-15 08:04 639223774218660438
27 ms 37.187.249.168
26 2026-08-15 07:49 639223764663090372
14 ms 37.187.249.168
25 2026-08-15 07:33 639223755338811400
2029 ms 37.187.249.168
24 2026-08-15 07:17 639223746019193268
16 ms 37.187.249.168
23 2026-08-15 07:02 639223736658778104
22 ms 37.187.249.168
22 2026-08-15 06:46 639223727330194499
48 ms 37.187.249.168
21 2026-08-15 06:30 639223717848514742
15 ms 37.187.249.168
20 2026-08-15 06:15 639223708284754056
54 ms 37.187.249.168
19 2026-08-15 05:59 639223699061259933
38 ms 37.187.249.168
18 2026-08-15 05:43 639223689592545140
21 ms 37.187.249.168
17 2026-08-15 05:27 639223680143410810
23 ms 37.187.249.168
16 2026-08-15 05:12 639223670514517104
30 ms 37.187.249.168
15 2026-08-15 04:19 639223638855054294
54 ms 37.187.249.168
14 2026-08-15 04:03 639223629623335972
2013 ms 37.187.249.168
13 2026-08-15 03:48 639223620390189495
69 ms 37.187.249.168
12 2026-08-15 03:32 639223610916950440
15 ms 37.187.249.168
11 2026-08-15 03:16 639223601597759168
21 ms 37.187.249.168
10 2026-08-15 03:01 639223592342172093
51 ms 37.187.249.168
9 2026-08-15 02:46 639223583324121497
41 ms 37.187.249.168
8 2026-08-15 02:31 639223574086714218
44 ms 37.187.249.168
7 2026-08-15 02:15 639223564698424889
2018 ms 37.187.249.168
6 2026-08-15 01:59 639223555408664206
18 ms 37.187.249.168
5 2026-08-15 01:44 639223546000912416
27 ms 37.187.249.168
4 2026-08-15 01:28 639223536550774847
44 ms 37.187.249.168
3 2026-08-15 00:35 639223505017205611
20 ms 37.187.249.168
2 2026-08-15 00:20 639223495784410207
36 ms 37.187.249.168
1 2026-08-15 00:04 639223486524583054
48 ms 37.187.249.168