History for ns4.tohoku.ac.jp
Domain: tohoku.ac.jp • Tracking since 2026-08-04 23:25 UTC
DNS response history for ns4.tohoku.ac.jp
ns4.tohoku.ac.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 64 DNS check records, 64 successful responses, 0 failed responses, and 328 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 ns4.tohoku.ac.jp.
Records on Selected Date
64
Historical checks stored for this nameserver on selected date
Average Latency
328 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-25 21:56
All timestamps shown in UTC
Latest Resolved IP on Selected Date
180.12.186.50
Most recently resolved hosting IP on selected date
Successful Responses
64
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 ns4.tohoku.ac.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 |
|---|---|---|---|---|---|
| 64 | 2026-08-25 21:56 | 639232911234504639 |
|
275 ms | 180.12.186.50 |
| 63 | 2026-08-25 21:39 | 639232900747078453 |
|
269 ms | 180.12.186.50 |
| 62 | 2026-08-25 21:21 | 639232890389222534 |
|
304 ms | 180.12.186.50 |
| 61 | 2026-08-25 21:04 | 639232880143390843 |
|
558 ms | 180.12.186.50 |
| 60 | 2026-08-25 20:47 | 639232869755024069 |
|
308 ms | 180.12.186.50 |
| 59 | 2026-08-25 20:30 | 639232859355940346 |
|
260 ms | 180.12.186.50 |
| 58 | 2026-08-25 20:12 | 639232848992244953 |
|
7 ms | 180.12.186.50 |
| 57 | 2026-08-25 19:55 | 639232838596478500 |
|
565 ms | 180.12.186.50 |
| 56 | 2026-08-25 19:38 | 639232828175327683 |
|
297 ms | 180.12.186.50 |
| 55 | 2026-08-25 19:21 | 639232817798330473 |
|
280 ms | 180.12.186.50 |
| 54 | 2026-08-25 18:26 | 639232785462407552 |
|
278 ms | 180.12.186.50 |
| 53 | 2026-08-25 18:10 | 639232775177487032 |
|
288 ms | 180.12.186.50 |
| 52 | 2026-08-25 17:52 | 639232764991087115 |
|
289 ms | 180.12.186.50 |
| 51 | 2026-08-25 17:35 | 639232754842971478 |
|
284 ms | 180.12.186.50 |
| 50 | 2026-08-25 17:18 | 639232744455159107 |
|
277 ms | 180.12.186.50 |
| 49 | 2026-08-25 17:01 | 639232734145178231 |
|
288 ms | 180.12.186.50 |
| 48 | 2026-08-25 16:44 | 639232723827874402 |
|
299 ms | 180.12.186.50 |
| 47 | 2026-08-25 16:27 | 639232713533011892 |
|
4 ms | 180.12.186.50 |
| 46 | 2026-08-25 16:10 | 639232703065318207 |
|
4 ms | 180.12.186.50 |
| 45 | 2026-08-25 15:52 | 639232692629559470 |
|
290 ms | 180.12.186.50 |
| 44 | 2026-08-25 15:35 | 639232682238836475 |
|
288 ms | 180.12.186.50 |
| 43 | 2026-08-25 15:17 | 639232671787004306 |
|
278 ms | 180.12.186.50 |
| 42 | 2026-08-25 14:23 | 639232638994329666 |
|
32 ms | 180.12.186.50 |
| 41 | 2026-08-25 14:05 | 639232628614783237 |
|
272 ms | 180.12.186.50 |
| 40 | 2026-08-25 13:48 | 639232618360728578 |
|
289 ms | 180.12.186.50 |
| 39 | 2026-08-25 13:31 | 639232608016476376 |
|
15 ms | 180.12.186.50 |
| 38 | 2026-08-25 13:14 | 639232597643611557 |
|
302 ms | 180.12.186.50 |
| 37 | 2026-08-25 12:56 | 639232587225721862 |
|
59 ms | 180.12.186.50 |
| 36 | 2026-08-25 12:39 | 639232576780683689 |
|
573 ms | 180.12.186.50 |
| 35 | 2026-08-25 12:22 | 639232566381512620 |
|
286 ms | 180.12.186.50 |
| 34 | 2026-08-25 12:04 | 639232556111768563 |
|
311 ms | 180.12.186.50 |
| 33 | 2026-08-25 11:47 | 639232545839529039 |
|
295 ms | 180.12.186.50 |
| 32 | 2026-08-25 11:30 | 639232535349285207 |
|
289 ms | 180.12.186.50 |
| 31 | 2026-08-25 11:12 | 639232524938080723 |
|
279 ms | 180.12.186.50 |
| 30 | 2026-08-25 10:19 | 639232492740373468 |
|
560 ms | 180.12.186.50 |
| 29 | 2026-08-25 10:02 | 639232482235303141 |
|
14 ms | 180.12.186.50 |
| 28 | 2026-08-25 09:44 | 639232471861770303 |
|
7 ms | 180.12.186.50 |
| 27 | 2026-08-25 09:27 | 639232461630217327 |
|
4 ms | 180.12.186.50 |
| 26 | 2026-08-25 09:10 | 639232451282965990 |
|
280 ms | 180.12.186.50 |
| 25 | 2026-08-25 08:52 | 639232440814614938 |
|
273 ms | 180.12.186.50 |
| 24 | 2026-08-25 08:35 | 639232430410720425 |
|
278 ms | 180.12.186.50 |
| 23 | 2026-08-25 08:18 | 639232420003096185 |
|
317 ms | 180.12.186.50 |
| 22 | 2026-08-25 08:00 | 639232409467287444 |
|
3 ms | 180.12.186.50 |
| 21 | 2026-08-25 07:43 | 639232399077195997 |
|
288 ms | 180.12.186.50 |
| 20 | 2026-08-25 07:25 | 639232388731528337 |
|
288 ms | 180.12.186.50 |
| 19 | 2026-08-25 07:08 | 639232378288598612 |
|
279 ms | 180.12.186.50 |
| 18 | 2026-08-25 06:14 | 639232346196373643 |
|
312 ms | 180.12.186.50 |
| 17 | 2026-08-25 05:57 | 639232336112370741 |
|
292 ms | 180.12.186.50 |
| 16 | 2026-08-25 05:41 | 639232326146508970 |
|
290 ms | 180.12.186.50 |
| 15 | 2026-08-25 05:24 | 639232316189381720 |
|
276 ms | 180.12.186.50 |
| 14 | 2026-08-25 05:08 | 639232306217998913 |
|
2033 ms | 180.12.186.50 |
| 13 | 2026-08-25 04:51 | 639232296255744174 |
|
566 ms | 180.12.186.50 |
| 12 | 2026-08-25 04:34 | 639232286095760789 |
|
537 ms | 180.12.186.50 |
| 11 | 2026-08-25 04:17 | 639232276086186273 |
|
282 ms | 180.12.186.50 |
| 10 | 2026-08-25 04:01 | 639232265900986425 |
|
559 ms | 180.12.186.50 |
| 9 | 2026-08-25 03:44 | 639232255723518075 |
|
31 ms | 180.12.186.50 |
| 8 | 2026-08-25 03:27 | 639232245484452890 |
|
279 ms | 180.12.186.50 |
| 7 | 2026-08-25 03:09 | 639232235157175331 |
|
281 ms | 180.12.186.50 |
| 6 | 2026-08-25 02:16 | 639232203197189095 |
|
9 ms | 180.12.186.50 |
| 5 | 2026-08-25 01:59 | 639232192844564298 |
|
285 ms | 180.12.186.50 |
| 4 | 2026-08-25 01:42 | 639232182496008942 |
|
2283 ms | 180.12.186.50 |
| 3 | 2026-08-25 01:24 | 639232172197053132 |
|
285 ms | 180.12.186.50 |
| 2 | 2026-08-25 00:31 | 639232140250307418 |
|
260 ms | 180.12.186.50 |
| 1 | 2026-08-25 00:14 | 639232129927860324 |
|
533 ms | 180.12.186.50 |