DNS response history for ns1.do21.ch

ns1.do21.ch 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 2026-08-25. For this date, NameServerHistory found 60 DNS check records, 59 successful responses, 1 failed responses, and 200 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.do21.ch.
Records on Selected Date

60

Historical checks stored for this nameserver on selected date

Average Latency

200 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-25 20:38

All timestamps shown in UTC

Latest Resolved IP on Selected Date

140.238.174.53

Most recently resolved hosting IP on selected date

Successful Responses

59

Checks that returned a measurable response

Failed Responses

1

Checks with no response or no returned latency

Failure Rate

2%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for ns1.do21.ch

Showing DNS history for 2026-08-25 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
60 2026-08-25 20:38 639232869755024069
72 ms 140.238.174.53
59 2026-08-25 20:21 639232859355940346
44 ms 140.238.174.53
58 2026-08-25 20:04 639232848992244953
11 ms 140.238.174.53
57 2026-08-25 19:46 639232838596478500
18 ms 140.238.174.53
56 2026-08-25 19:29 639232828175327683
19 ms 140.238.174.53
55 2026-08-25 19:12 639232817798330473
44 ms 140.238.174.53
54 2026-08-25 18:18 639232785462407552
2048 ms 140.238.174.53
53 2026-08-25 18:01 639232775177487032
15 ms 140.238.174.53
52 2026-08-25 17:44 639232764991087115
22 ms 140.238.174.53
51 2026-08-25 17:27 639232754842971478
9 ms 140.238.174.53
50 2026-08-25 17:10 639232744455159107
47 ms 140.238.174.53
49 2026-08-25 16:52 639232734145178231
2039 ms 140.238.174.53
48 2026-08-25 16:35 639232723827874402
13 ms 140.238.174.53
47 2026-08-25 16:18 639232713533011892
26 ms 140.238.174.53
46 2026-08-25 16:01 639232703065318207
45 ms 140.238.174.53
45 2026-08-25 15:43 639232692629559470
17 ms 140.238.174.53
44 2026-08-25 15:26 639232682238836475
24 ms 140.238.174.53
43 2026-08-25 15:08 639232671787004306
46 ms 140.238.174.53
42 2026-08-25 14:14 639232638994329666
7 ms 140.238.174.53
41 2026-08-25 13:56 639232628614783237
36 ms 140.238.174.53
40 2026-08-25 13:39 639232618360728578
30 ms 140.238.174.53
39 2026-08-25 13:22 639232608016476376
15 ms 140.238.174.53
38 2026-08-25 13:05 639232597643611557
10 ms 140.238.174.53
37 2026-08-25 12:47 639232587225721862
53 ms 140.238.174.53
36 2026-08-25 12:30 639232576780683689
13 ms 140.238.174.53
35 2026-08-25 12:13 639232566381512620
40 ms 140.238.174.53
34 2026-08-25 11:56 639232556111768563
23 ms 140.238.174.53
33 2026-08-25 11:38 639232545839529039
21 ms 140.238.174.53
32 2026-08-25 11:21 639232535349285207
10 ms 140.238.174.53
31 2026-08-25 11:04 639232524938080723
67 ms 140.238.174.53
30 2026-08-25 10:10 639232492740373468
49 ms 140.238.174.53
29 2026-08-25 09:53 639232482235303141
10 ms 140.238.174.53
28 2026-08-25 09:35 639232471861770303
24 ms 140.238.174.53
27 2026-08-25 09:18 639232461630217327
40 ms 140.238.174.53
26 2026-08-25 09:01 639232451282965990
29 ms 140.238.174.53
25 2026-08-25 08:43 639232440814614938
27 ms 140.238.174.53
24 2026-08-25 08:26 639232430410720425
2068 ms 140.238.174.53
23 2026-08-25 08:09 639232420003096185
8 ms 140.238.174.53
22 2026-08-25 07:51 639232409467287444
52 ms 140.238.174.53
21 2026-08-25 07:34 639232399077195997
22 ms 140.238.174.53
20 2026-08-25 07:17 639232388731528337
6 ms 140.238.174.53
19 2026-08-25 06:59 639232378288598612
2035 ms 140.238.174.53
18 2026-08-25 06:06 639232346196373643
25 ms 140.238.174.53
17 2026-08-25 05:49 639232336112370741
10 ms 140.238.174.53
16 2026-08-25 05:32 639232326146508970
45 ms 140.238.174.53
15 2026-08-25 05:16 639232316189381720
42 ms 140.238.174.53
14 2026-08-25 04:59 639232306217998913
4 ms 140.238.174.53
13 2026-08-25 04:43 639232296255744174
29 ms 140.238.174.53
12 2026-08-25 04:26 639232286095760789
31 ms 140.238.174.53
11 2026-08-25 04:09 639232276086186273
-
10 2026-08-25 03:52 639232265900986425
31 ms 140.238.174.53
9 2026-08-25 03:35 639232255723518075
30 ms 140.238.174.53
8 2026-08-25 03:18 639232245484452890
9 ms 140.238.174.53
7 2026-08-25 03:01 639232235157175331
36 ms 140.238.174.53
6 2026-08-25 02:07 639232203197189095
22 ms 140.238.174.53
5 2026-08-25 01:50 639232192844564298
32 ms 140.238.174.53
4 2026-08-25 01:33 639232182496008942
72 ms 140.238.174.53
3 2026-08-25 01:16 639232172197053132
2047 ms 140.238.174.53
2 2026-08-25 00:22 639232140250307418
24 ms 140.238.174.53
1 2026-08-25 00:05 639232129927860324
28 ms 140.238.174.53