DNS response history for ns-tk021.ocn.ad.jp

ns-tk021.ocn.ad.jp 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 55 DNS check records, 55 successful responses, 0 failed responses, and 285 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 ns-tk021.ocn.ad.jp.
Records on Selected Date

55

Historical checks stored for this nameserver on selected date

Average Latency

285 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-25 19:20

All timestamps shown in UTC

Latest Resolved IP on Selected Date

203.139.160.103

Most recently resolved hosting IP on selected date

Successful Responses

55

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 ns-tk021.ocn.ad.jp

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
55 2026-08-25 19:20 639232817798330473
264 ms 203.139.160.103
54 2026-08-25 18:25 639232785462407552
269 ms 203.139.160.103
53 2026-08-25 18:09 639232775177487032
265 ms 203.139.160.103
52 2026-08-25 17:51 639232764991087115
20 ms 203.139.160.103
51 2026-08-25 17:34 639232754842971478
263 ms 203.139.160.103
50 2026-08-25 17:17 639232744455159107
258 ms 203.139.160.103
49 2026-08-25 17:00 639232734145178231
263 ms 203.139.160.103
48 2026-08-25 16:43 639232723827874402
255 ms 203.139.160.103
47 2026-08-25 16:26 639232713533011892
243 ms 203.139.160.103
46 2026-08-25 16:09 639232703065318207
263 ms 203.139.160.103
45 2026-08-25 15:51 639232692629559470
15 ms 203.139.160.103
44 2026-08-25 15:34 639232682238836475
264 ms 203.139.160.103
43 2026-08-25 15:16 639232671787004306
261 ms 203.139.160.103
42 2026-08-25 14:22 639232638994329666
321 ms 203.139.160.103
41 2026-08-25 14:04 639232628614783237
473 ms 203.139.160.103
40 2026-08-25 13:47 639232618360728578
537 ms 203.139.160.103
39 2026-08-25 13:30 639232608016476376
269 ms 203.139.160.103
38 2026-08-25 13:13 639232597643611557
446 ms 203.139.160.103
37 2026-08-25 12:55 639232587225721862
340 ms 203.139.160.103
36 2026-08-25 12:38 639232576780683689
8 ms 203.139.160.103
35 2026-08-25 12:21 639232566381512620
257 ms 203.139.160.103
34 2026-08-25 12:03 639232556111768563
268 ms 203.139.160.103
33 2026-08-25 11:46 639232545839529039
259 ms 203.139.160.103
32 2026-08-25 11:29 639232535349285207
317 ms 203.139.160.103
31 2026-08-25 11:11 639232524938080723
271 ms 203.139.160.103
30 2026-08-25 10:18 639232492740373468
264 ms 203.139.160.103
29 2026-08-25 10:01 639232482235303141
256 ms 203.139.160.103
28 2026-08-25 09:43 639232471861770303
36 ms 203.139.160.103
27 2026-08-25 09:26 639232461630217327
266 ms 203.139.160.103
26 2026-08-25 09:09 639232451282965990
32 ms 203.139.160.103
25 2026-08-25 08:51 639232440814614938
5 ms 203.139.160.103
24 2026-08-25 08:34 639232430410720425
253 ms 203.139.160.103
23 2026-08-25 08:17 639232420003096185
269 ms 203.139.160.103
22 2026-08-25 07:59 639232409467287444
13 ms 203.139.160.103
21 2026-08-25 07:42 639232399077195997
258 ms 203.139.160.103
20 2026-08-25 07:24 639232388731528337
356 ms 203.139.160.103
19 2026-08-25 07:07 639232378288598612
256 ms 203.139.160.103
18 2026-08-25 06:13 639232346196373643
360 ms 203.139.160.103
17 2026-08-25 05:56 639232336112370741
533 ms 203.139.160.103
16 2026-08-25 05:40 639232326146508970
257 ms 203.139.160.103
15 2026-08-25 05:23 639232316189381720
31 ms 203.139.160.103
14 2026-08-25 05:07 639232306217998913
5 ms 203.139.160.103
13 2026-08-25 04:50 639232296255744174
273 ms 203.139.160.103
12 2026-08-25 04:33 639232286095760789
256 ms 203.139.160.103
11 2026-08-25 04:16 639232276086186273
264 ms 203.139.160.103
10 2026-08-25 04:00 639232265900986425
2120 ms 203.139.160.103
9 2026-08-25 03:43 639232255723518075
253 ms 203.139.160.103
8 2026-08-25 03:26 639232245484452890
256 ms 203.139.160.103
7 2026-08-25 03:08 639232235157175331
266 ms 203.139.160.103
6 2026-08-25 02:15 639232203197189095
345 ms 203.139.160.103
5 2026-08-25 01:58 639232192844564298
262 ms 203.139.160.103
4 2026-08-25 01:41 639232182496008942
254 ms 203.139.160.103
3 2026-08-25 01:23 639232172197053132
254 ms 203.139.160.103
2 2026-08-25 00:30 639232140250307418
480 ms 203.139.160.103
1 2026-08-25 00:13 639232129927860324
256 ms 203.139.160.103