DNS response history for ns1.viet.cz

ns1.viet.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 2026-08-27. For this date, NameServerHistory found 26 DNS check records, 25 successful responses, 1 failed responses, and 859 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 ns1.viet.cz.
Records on Selected Date

26

Historical checks stored for this nameserver on selected date

Average Latency

859 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-27 08:28

All timestamps shown in UTC

Latest Resolved IP on Selected Date

89.221.217.95

Most recently resolved hosting IP on selected date

Successful Responses

25

Checks that returned a measurable response

Failed Responses

1

Checks with no response or no returned latency

Failure Rate

4%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for ns1.viet.cz

Showing DNS history for 2026-08-27 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
26 2026-08-27 08:28 639234160341037652
51 ms 89.221.217.95
25 2026-08-27 08:11 639234149799404224
2076 ms 89.221.217.95
24 2026-08-27 07:54 639234139553286469
4038 ms 89.221.217.95
23 2026-08-27 07:00 639234107183588293
48 ms 89.221.217.95
22 2026-08-27 06:43 639234096905435724
50 ms 89.221.217.95
21 2026-08-27 06:25 639234086579410775
2030 ms 89.221.217.95
20 2026-08-27 06:08 639234076291157956
49 ms 89.221.217.95
19 2026-08-27 05:51 639234065981939454
50 ms 89.221.217.95
18 2026-08-27 05:34 639234055548642997
4026 ms 89.221.217.95
17 2026-08-27 05:17 639234045267979603
44 ms 89.221.217.95
16 2026-08-27 04:59 639234034999717463
38 ms 89.221.217.95
15 2026-08-27 04:42 639234024739225358
54 ms 89.221.217.95
14 2026-08-27 04:25 639234014311170162
50 ms 89.221.217.95
13 2026-08-27 04:07 639234003806017640
-
12 2026-08-27 03:50 639233993356203030
4044 ms 89.221.217.95
11 2026-08-27 02:57 639233961301716608
49 ms 89.221.217.95
10 2026-08-27 02:39 639233950834200647
2240 ms 89.221.217.95
9 2026-08-27 02:22 639233940431849026
151 ms 89.221.217.95
8 2026-08-27 02:05 639233930110596398
61 ms 89.221.217.95
7 2026-08-27 01:47 639233919705434540
55 ms 89.221.217.95
6 2026-08-27 01:30 639233909452807845
39 ms 89.221.217.95
5 2026-08-27 01:13 639233899096420820
2031 ms 89.221.217.95
4 2026-08-27 00:56 639233888707824939
53 ms 89.221.217.95
3 2026-08-27 00:39 639233878461203802
52 ms 89.221.217.95
2 2026-08-27 00:21 639233868060868209
44 ms 89.221.217.95
1 2026-08-27 00:03 639233857450922991
52 ms 89.221.217.95