History for ns1.dns21.jp
Domain: dns21.jp • Tracking since 2026-08-04 23:25 UTC
DNS response history for ns1.dns21.jp
ns1.dns21.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 68 DNS check records, 68 successful responses, 0 failed responses, and 398 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.dns21.jp.
Records on Selected Date
68
Historical checks stored for this nameserver on selected date
Average Latency
398 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-25 23:44
All timestamps shown in UTC
Latest Resolved IP on Selected Date
203.152.205.99
Most recently resolved hosting IP on selected date
Successful Responses
68
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 ns1.dns21.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 |
|---|---|---|---|---|---|
| 68 | 2026-08-25 23:44 | 639232974980190573 |
|
270 ms | 203.152.205.99 |
| 67 | 2026-08-25 23:27 | 639232964577050707 |
|
9 ms | 203.152.205.99 |
| 66 | 2026-08-25 22:33 | 639232932163142799 |
|
768 ms | 203.152.205.99 |
| 65 | 2026-08-25 22:16 | 639232921673215474 |
|
551 ms | 203.152.205.99 |
| 64 | 2026-08-25 21:58 | 639232911234504639 |
|
475 ms | 203.152.205.99 |
| 63 | 2026-08-25 21:41 | 639232900747078453 |
|
270 ms | 203.152.205.99 |
| 62 | 2026-08-25 21:24 | 639232890389222534 |
|
544 ms | 203.152.205.99 |
| 61 | 2026-08-25 21:06 | 639232880143390843 |
|
273 ms | 203.152.205.99 |
| 60 | 2026-08-25 20:49 | 639232869755024069 |
|
504 ms | 203.152.205.99 |
| 59 | 2026-08-25 20:32 | 639232859355940346 |
|
2281 ms | 203.152.205.99 |
| 58 | 2026-08-25 20:15 | 639232848992244953 |
|
483 ms | 203.152.205.99 |
| 57 | 2026-08-25 19:57 | 639232838596478500 |
|
481 ms | 203.152.205.99 |
| 56 | 2026-08-25 19:40 | 639232828175327683 |
|
276 ms | 203.152.205.99 |
| 55 | 2026-08-25 19:23 | 639232817798330473 |
|
272 ms | 203.152.205.99 |
| 54 | 2026-08-25 18:29 | 639232785462407552 |
|
270 ms | 203.152.205.99 |
| 53 | 2026-08-25 18:12 | 639232775177487032 |
|
272 ms | 203.152.205.99 |
| 52 | 2026-08-25 17:54 | 639232764991087115 |
|
494 ms | 203.152.205.99 |
| 51 | 2026-08-25 17:37 | 639232754842971478 |
|
551 ms | 203.152.205.99 |
| 50 | 2026-08-25 17:20 | 639232744455159107 |
|
500 ms | 203.152.205.99 |
| 49 | 2026-08-25 17:03 | 639232734145178231 |
|
273 ms | 203.152.205.99 |
| 48 | 2026-08-25 16:46 | 639232723827874402 |
|
270 ms | 203.152.205.99 |
| 47 | 2026-08-25 16:29 | 639232713533011892 |
|
278 ms | 203.152.205.99 |
| 46 | 2026-08-25 16:12 | 639232703065318207 |
|
499 ms | 203.152.205.99 |
| 45 | 2026-08-25 15:54 | 639232692629559470 |
|
269 ms | 203.152.205.99 |
| 44 | 2026-08-25 15:37 | 639232682238836475 |
|
486 ms | 203.152.205.99 |
| 43 | 2026-08-25 15:19 | 639232671787004306 |
|
275 ms | 203.152.205.99 |
| 42 | 2026-08-25 14:25 | 639232638994329666 |
|
276 ms | 203.152.205.99 |
| 41 | 2026-08-25 14:07 | 639232628614783237 |
|
550 ms | 203.152.205.99 |
| 40 | 2026-08-25 13:50 | 639232618360728578 |
|
509 ms | 203.152.205.99 |
| 39 | 2026-08-25 13:33 | 639232608016476376 |
|
755 ms | 203.152.205.99 |
| 38 | 2026-08-25 13:16 | 639232597643611557 |
|
275 ms | 203.152.205.99 |
| 37 | 2026-08-25 12:58 | 639232587225721862 |
|
271 ms | 203.152.205.99 |
| 36 | 2026-08-25 12:41 | 639232576780683689 |
|
510 ms | 203.152.205.99 |
| 35 | 2026-08-25 12:24 | 639232566381512620 |
|
272 ms | 203.152.205.99 |
| 34 | 2026-08-25 12:06 | 639232556111768563 |
|
4 ms | 203.152.205.99 |
| 33 | 2026-08-25 11:49 | 639232545839529039 |
|
270 ms | 203.152.205.99 |
| 32 | 2026-08-25 11:32 | 639232535349285207 |
|
276 ms | 203.152.205.99 |
| 31 | 2026-08-25 11:15 | 639232524938080723 |
|
6 ms | 203.152.205.99 |
| 30 | 2026-08-25 10:21 | 639232492740373468 |
|
3 ms | 203.152.205.99 |
| 29 | 2026-08-25 10:04 | 639232482235303141 |
|
273 ms | 203.152.205.99 |
| 28 | 2026-08-25 09:46 | 639232471861770303 |
|
610 ms | 203.152.205.99 |
| 27 | 2026-08-25 09:29 | 639232461630217327 |
|
493 ms | 203.152.205.99 |
| 26 | 2026-08-25 09:12 | 639232451282965990 |
|
547 ms | 203.152.205.99 |
| 25 | 2026-08-25 08:54 | 639232440814614938 |
|
519 ms | 203.152.205.99 |
| 24 | 2026-08-25 08:37 | 639232430410720425 |
|
271 ms | 203.152.205.99 |
| 23 | 2026-08-25 08:20 | 639232420003096185 |
|
387 ms | 203.152.205.99 |
| 22 | 2026-08-25 08:02 | 639232409467287444 |
|
496 ms | 203.152.205.99 |
| 21 | 2026-08-25 07:45 | 639232399077195997 |
|
280 ms | 203.152.205.99 |
| 20 | 2026-08-25 07:27 | 639232388731528337 |
|
532 ms | 203.152.205.99 |
| 19 | 2026-08-25 07:10 | 639232378288598612 |
|
499 ms | 203.152.205.99 |
| 18 | 2026-08-25 06:16 | 639232346196373643 |
|
516 ms | 203.152.205.99 |
| 17 | 2026-08-25 06:00 | 639232336112370741 |
|
16 ms | 203.152.205.99 |
| 16 | 2026-08-25 05:43 | 639232326146508970 |
|
3 ms | 203.152.205.99 |
| 15 | 2026-08-25 05:26 | 639232316189381720 |
|
3 ms | 203.152.205.99 |
| 14 | 2026-08-25 05:10 | 639232306217998913 |
|
274 ms | 203.152.205.99 |
| 13 | 2026-08-25 04:53 | 639232296255744174 |
|
471 ms | 203.152.205.99 |
| 12 | 2026-08-25 04:36 | 639232286095760789 |
|
276 ms | 203.152.205.99 |
| 11 | 2026-08-25 04:19 | 639232276086186273 |
|
274 ms | 203.152.205.99 |
| 10 | 2026-08-25 04:03 | 639232265900986425 |
|
269 ms | 203.152.205.99 |
| 9 | 2026-08-25 03:46 | 639232255723518075 |
|
275 ms | 203.152.205.99 |
| 8 | 2026-08-25 03:29 | 639232245484452890 |
|
272 ms | 203.152.205.99 |
| 7 | 2026-08-25 03:12 | 639232235157175331 |
|
388 ms | 203.152.205.99 |
| 6 | 2026-08-25 02:18 | 639232203197189095 |
|
496 ms | 203.152.205.99 |
| 5 | 2026-08-25 02:01 | 639232192844564298 |
|
495 ms | 203.152.205.99 |
| 4 | 2026-08-25 01:44 | 639232182496008942 |
|
499 ms | 203.152.205.99 |
| 3 | 2026-08-25 01:27 | 639232172197053132 |
|
984 ms | 203.152.205.99 |
| 2 | 2026-08-25 00:33 | 639232140250307418 |
|
504 ms | 203.152.205.99 |
| 1 | 2026-08-25 00:16 | 639232129927860324 |
|
271 ms | 203.152.205.99 |