DNS response history for b.zrns.cz

b.zrns.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 2026-08-26. For this date, NameServerHistory found 59 DNS check records, 59 successful responses, 0 failed responses, and 347 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 b.zrns.cz.
Records on Selected Date

59

Historical checks stored for this nameserver on selected date

Average Latency

347 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 20:05

All timestamps shown in UTC

Latest Resolved IP on Selected Date

37.44.16.227

Most recently resolved hosting IP on selected date

Successful Responses

59

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 b.zrns.cz

Showing DNS history for 2026-08-26 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
59 2026-08-26 20:05 639233710560486320
65 ms 37.44.16.227
58 2026-08-26 19:47 639233699834667450
5 ms 37.44.16.227
57 2026-08-26 18:53 639233667209186136
34 ms 37.44.16.227
56 2026-08-26 18:35 639233656814316266
30 ms 37.44.16.227
55 2026-08-26 18:18 639233646245051806
27 ms 37.44.16.227
54 2026-08-26 18:00 639233635663779051
6 ms 37.44.16.227
53 2026-08-26 17:43 639233624977342122
25 ms 37.44.16.227
52 2026-08-26 17:25 639233614446136153
19 ms 37.44.16.227
51 2026-08-26 17:07 639233603737877581
19 ms 37.44.16.227
50 2026-08-26 16:49 639233593269224651
4 ms 37.44.16.227
49 2026-08-26 16:32 639233582635086903
37 ms 37.44.16.227
48 2026-08-26 16:14 639233572000374575
38 ms 37.44.16.227
47 2026-08-26 15:56 639233561188633861
66 ms 37.44.16.227
46 2026-08-26 15:38 639233550544357027
58 ms 37.44.16.227
45 2026-08-26 14:44 639233517966053117
21 ms 37.44.16.227
44 2026-08-26 14:27 639233507603253585
21 ms 37.44.16.227
43 2026-08-26 14:09 639233497229039167
27 ms 37.44.16.227
42 2026-08-26 13:52 639233486864546406
18 ms 37.44.16.227
41 2026-08-26 13:35 639233476455174682
37 ms 37.44.16.227
40 2026-08-26 13:18 639233466171592605
19 ms 37.44.16.227
39 2026-08-26 13:00 639233455747096265
37 ms 37.44.16.227
38 2026-08-26 12:43 639233445367152284
34 ms 37.44.16.227
37 2026-08-26 12:26 639233434974187439
18 ms 37.44.16.227
36 2026-08-26 12:08 639233424567558554
50 ms 37.44.16.227
35 2026-08-26 11:51 639233414056832719
2037 ms 37.44.16.227
34 2026-08-26 11:33 639233403515141099
19 ms 37.44.16.227
33 2026-08-26 10:38 639233370841350248
25 ms 37.44.16.227
32 2026-08-26 10:21 639233360361507238
33 ms 37.44.16.227
31 2026-08-26 10:04 639233350067824371
2062 ms 37.44.16.227
30 2026-08-26 09:47 639233339545274518
21 ms 37.44.16.227
29 2026-08-26 09:29 639233329214918079
24 ms 37.44.16.227
28 2026-08-26 09:12 639233318749762337
11 ms 37.44.16.227
27 2026-08-26 08:55 639233308387917838
55 ms 37.44.16.227
26 2026-08-26 08:37 639233297961740122
2021 ms 37.44.16.227
25 2026-08-26 08:20 639233287487159094
45 ms 37.44.16.227
24 2026-08-26 08:02 639233276995531707
2031 ms 37.44.16.227
23 2026-08-26 07:45 639233266521568229
34 ms 37.44.16.227
22 2026-08-26 07:27 639233256081047431
46 ms 37.44.16.227
21 2026-08-26 06:33 639233223620132921
20 ms 37.44.16.227
20 2026-08-26 06:16 639233213287814244
4034 ms 37.44.16.227
19 2026-08-26 05:59 639233202925983161
44 ms 37.44.16.227
18 2026-08-26 05:42 639233192644780696
75 ms 37.44.16.227
17 2026-08-26 05:25 639233182401183833
2406 ms 37.44.16.227
16 2026-08-26 05:08 639233172074181051
26 ms 37.44.16.227
15 2026-08-26 04:50 639233161808421455
137 ms 37.44.16.227
14 2026-08-26 04:33 639233151357344052
41 ms 37.44.16.227
13 2026-08-26 04:16 639233141034116946
47 ms 37.44.16.227
12 2026-08-26 03:59 639233130828334142
27 ms 37.44.16.227
11 2026-08-26 03:41 639233120373450007
26 ms 37.44.16.227
10 2026-08-26 03:24 639233110066216193
22 ms 37.44.16.227
9 2026-08-26 02:31 639233078065410564
24 ms 37.44.16.227
8 2026-08-26 02:14 639233067787457832
29 ms 37.44.16.227
7 2026-08-26 01:57 639233057501801162
2022 ms 37.44.16.227
6 2026-08-26 01:39 639233047089431703
48 ms 37.44.16.227
5 2026-08-26 01:22 639233036754790688
27 ms 37.44.16.227
4 2026-08-26 01:05 639233026412602472
2025 ms 37.44.16.227
3 2026-08-26 00:47 639233016064066127
148 ms 37.44.16.227
2 2026-08-26 00:30 639233005922655772
19 ms 37.44.16.227
1 2026-08-26 00:13 639232995672256907
40 ms 37.44.16.227