History for ns1.harada.iii.u-tokyo.ac.jp
Domain: u-tokyo.ac.jp • Tracking since 2026-08-04 23:25 UTC
DNS response history for ns1.harada.iii.u-tokyo.ac.jp
ns1.harada.iii.u-tokyo.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 2026-09-01. For this date, NameServerHistory found 45 DNS check records, 45 successful responses, 0 failed responses, and 1016 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.harada.iii.u-tokyo.ac.jp.
Records on Selected Date
45
Historical checks stored for this nameserver on selected date
Average Latency
1016 ms
Calculated from available response records
Latest Check on Selected Date
2026-09-01 15:46
All timestamps shown in UTC
Latest Resolved IP on Selected Date
130.69.198.246
Most recently resolved hosting IP on selected date
Successful Responses
45
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.harada.iii.u-tokyo.ac.jp
Showing DNS history for 2026-09-01 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 |
|---|---|---|---|---|---|
| 45 | 2026-09-01 15:46 | 639238734176021898 |
|
1349 ms | 130.69.198.246 |
| 44 | 2026-09-01 15:28 | 639238723349432115 |
|
712 ms | 130.69.198.246 |
| 43 | 2026-09-01 14:34 | 639238690993873259 |
|
741 ms | 130.69.198.246 |
| 42 | 2026-09-01 14:16 | 639238680658140472 |
|
1358 ms | 130.69.198.246 |
| 41 | 2026-09-01 13:59 | 639238670295233158 |
|
1353 ms | 130.69.198.246 |
| 40 | 2026-09-01 13:42 | 639238659704397018 |
|
732 ms | 130.69.198.246 |
| 39 | 2026-09-01 13:24 | 639238649308394463 |
|
1115 ms | 130.69.198.246 |
| 38 | 2026-09-01 13:07 | 639238638904588883 |
|
1609 ms | 130.69.198.246 |
| 37 | 2026-09-01 12:49 | 639238628486902752 |
|
1160 ms | 130.69.198.246 |
| 36 | 2026-09-01 12:32 | 639238617906743100 |
|
1620 ms | 130.69.198.246 |
| 35 | 2026-09-01 12:14 | 639238607506044626 |
|
274 ms | 130.69.198.246 |
| 34 | 2026-09-01 11:57 | 639238597040761406 |
|
1363 ms | 130.69.198.246 |
| 33 | 2026-09-01 11:40 | 639238586261546969 |
|
1355 ms | 130.69.198.246 |
| 32 | 2026-09-01 11:22 | 639238575587642333 |
|
1389 ms | 130.69.198.246 |
| 31 | 2026-09-01 10:27 | 639238543127398267 |
|
1603 ms | 130.69.198.246 |
| 30 | 2026-09-01 10:10 | 639238532668234016 |
|
1349 ms | 130.69.198.246 |
| 29 | 2026-09-01 09:52 | 639238522029321761 |
|
1360 ms | 130.69.198.246 |
| 28 | 2026-09-01 09:35 | 639238511519050351 |
|
726 ms | 130.69.198.246 |
| 27 | 2026-09-01 09:17 | 639238500942239673 |
|
3 ms | 130.69.198.246 |
| 26 | 2026-09-01 09:00 | 639238490412377398 |
|
739 ms | 130.69.198.246 |
| 25 | 2026-09-01 08:42 | 639238479833203021 |
|
984 ms | 130.69.198.246 |
| 24 | 2026-09-01 08:24 | 639238469140507479 |
|
748 ms | 130.69.198.246 |
| 23 | 2026-09-01 08:06 | 639238458443560361 |
|
2506 ms | 130.69.198.246 |
| 22 | 2026-09-01 07:49 | 639238447694851502 |
|
279 ms | 130.69.198.246 |
| 21 | 2026-09-01 07:31 | 639238436624109087 |
|
281 ms | 130.69.198.246 |
| 20 | 2026-09-01 07:12 | 639238425565611335 |
|
525 ms | 130.69.198.246 |
| 19 | 2026-09-01 06:17 | 639238392250222581 |
|
1597 ms | 130.69.198.246 |
| 18 | 2026-09-01 05:58 | 639238381322537831 |
|
1362 ms | 130.69.198.246 |
| 17 | 2026-09-01 05:40 | 639238370248186084 |
|
797 ms | 130.69.198.246 |
| 16 | 2026-09-01 05:22 | 639238359264687845 |
|
1359 ms | 130.69.198.246 |
| 15 | 2026-09-01 05:03 | 639238348534621818 |
|
278 ms | 130.69.198.246 |
| 14 | 2026-09-01 04:45 | 639238337725739433 |
|
273 ms | 130.69.198.246 |
| 13 | 2026-09-01 04:27 | 639238326844749368 |
|
1353 ms | 130.69.198.246 |
| 12 | 2026-09-01 04:09 | 639238315792024737 |
|
989 ms | 130.69.198.246 |
| 11 | 2026-09-01 03:51 | 639238304931064768 |
|
754 ms | 130.69.198.246 |
| 10 | 2026-09-01 03:33 | 639238294131483803 |
|
776 ms | 130.69.198.246 |
| 9 | 2026-09-01 03:15 | 639238283314985519 |
|
1342 ms | 130.69.198.246 |
| 8 | 2026-09-01 02:57 | 639238272374093187 |
|
541 ms | 130.69.198.246 |
| 7 | 2026-09-01 02:03 | 639238240032549922 |
|
1372 ms | 130.69.198.246 |
| 6 | 2026-09-01 01:45 | 639238229204177368 |
|
761 ms | 130.69.198.246 |
| 5 | 2026-09-01 01:27 | 639238218326150282 |
|
1387 ms | 130.69.198.246 |
| 4 | 2026-09-01 01:09 | 639238207574700853 |
|
769 ms | 130.69.198.246 |
| 3 | 2026-09-01 00:51 | 639238196660283915 |
|
1377 ms | 130.69.198.246 |
| 2 | 2026-09-01 00:33 | 639238185782358546 |
|
1135 ms | 130.69.198.246 |
| 1 | 2026-09-01 00:14 | 639238175054391781 |
|
263 ms | 130.69.198.246 |