History for ns1.kenkyu.co.jp
Domain: kenkyu.co.jp • Tracking since 2026-08-04 23:25 UTC
DNS response history for ns1.kenkyu.co.jp
ns1.kenkyu.co.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 2026-08-26. For this date, NameServerHistory found 54 DNS check records, 48 successful responses, 6 failed responses, and 2479 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.kenkyu.co.jp.
Records on Selected Date
54
Historical checks stored for this nameserver on selected date
Average Latency
2479 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-26 17:50
All timestamps shown in UTC
Latest Resolved IP on Selected Date
219.96.224.90
Most recently resolved hosting IP on selected date
Successful Responses
48
Checks that returned a measurable response
Failed Responses
6
Checks with no response or no returned latency
Failure Rate
11%
Based on the selected date history
Selected Date Status
Responsive
At least one successful response exists on selected date
History for ns1.kenkyu.co.jp
Showing DNS history for 2026-08-26 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 |
|---|---|---|---|---|---|
| 54 | 2026-08-26 17:50 | 639233624977342122 |
|
2267 ms | 219.96.224.90 |
| 53 | 2026-08-26 17:32 | 639233614446136153 |
|
2270 ms | 219.96.224.90 |
| 52 | 2026-08-26 17:14 | 639233603737877581 |
|
2275 ms | 219.96.224.90 |
| 51 | 2026-08-26 16:57 | 639233593269224651 |
|
2269 ms | 219.96.224.90 |
| 50 | 2026-08-26 16:39 | 639233582635086903 |
|
4260 ms | 219.96.224.90 |
| 49 | 2026-08-26 16:21 | 639233572000374575 |
|
1918 ms | 219.96.224.90 |
| 48 | 2026-08-26 16:03 | 639233561188633861 |
|
2336 ms | 219.96.224.90 |
| 47 | 2026-08-26 15:46 | 639233550544357027 |
|
2298 ms | 219.96.224.90 |
| 46 | 2026-08-26 14:51 | 639233517966053117 |
|
- | |
| 45 | 2026-08-26 14:34 | 639233507603253585 |
|
2339 ms | 219.96.224.90 |
| 44 | 2026-08-26 14:16 | 639233497229039167 |
|
2271 ms | 219.96.224.90 |
| 43 | 2026-08-26 13:59 | 639233486864546406 |
|
2549 ms | 219.96.224.90 |
| 42 | 2026-08-26 13:42 | 639233476455174682 |
|
- | |
| 41 | 2026-08-26 13:24 | 639233466171592605 |
|
2652 ms | 219.96.224.90 |
| 40 | 2026-08-26 13:07 | 639233455747096265 |
|
- | |
| 39 | 2026-08-26 12:50 | 639233445367152284 |
|
2334 ms | 219.96.224.90 |
| 38 | 2026-08-26 12:33 | 639233434974187439 |
|
- | |
| 37 | 2026-08-26 12:15 | 639233424567558554 |
|
2260 ms | 219.96.224.90 |
| 36 | 2026-08-26 11:58 | 639233414056832719 |
|
2334 ms | 219.96.224.90 |
| 35 | 2026-08-26 11:40 | 639233403515141099 |
|
2348 ms | 219.96.224.90 |
| 34 | 2026-08-26 10:46 | 639233370841350248 |
|
2329 ms | 219.96.224.90 |
| 33 | 2026-08-26 10:28 | 639233360361507238 |
|
2386 ms | 219.96.224.90 |
| 32 | 2026-08-26 10:11 | 639233350067824371 |
|
- | |
| 31 | 2026-08-26 09:54 | 639233339545274518 |
|
2533 ms | 219.96.224.90 |
| 30 | 2026-08-26 09:36 | 639233329214918079 |
|
2274 ms | 219.96.224.90 |
| 29 | 2026-08-26 09:19 | 639233318749762337 |
|
2332 ms | 219.96.224.90 |
| 28 | 2026-08-26 09:02 | 639233308387917838 |
|
2393 ms | 219.96.224.90 |
| 27 | 2026-08-26 08:44 | 639233297961740122 |
|
- | |
| 26 | 2026-08-26 08:27 | 639233287487159094 |
|
2273 ms | 219.96.224.90 |
| 25 | 2026-08-26 08:09 | 639233276995531707 |
|
2276 ms | 219.96.224.90 |
| 24 | 2026-08-26 07:52 | 639233266521568229 |
|
2272 ms | 219.96.224.90 |
| 23 | 2026-08-26 07:34 | 639233256081047431 |
|
2332 ms | 219.96.224.90 |
| 22 | 2026-08-26 06:40 | 639233223620132921 |
|
2530 ms | 219.96.224.90 |
| 21 | 2026-08-26 06:23 | 639233213287814244 |
|
2288 ms | 219.96.224.90 |
| 20 | 2026-08-26 06:06 | 639233202925983161 |
|
2613 ms | 219.96.224.90 |
| 19 | 2026-08-26 05:49 | 639233192644780696 |
|
2577 ms | 219.96.224.90 |
| 18 | 2026-08-26 05:31 | 639233182401183833 |
|
2269 ms | 219.96.224.90 |
| 17 | 2026-08-26 05:14 | 639233172074181051 |
|
2557 ms | 219.96.224.90 |
| 16 | 2026-08-26 04:57 | 639233161808421455 |
|
2280 ms | 219.96.224.90 |
| 15 | 2026-08-26 04:40 | 639233151357344052 |
|
2265 ms | 219.96.224.90 |
| 14 | 2026-08-26 04:23 | 639233141034116946 |
|
4248 ms | 219.96.224.90 |
| 13 | 2026-08-26 04:05 | 639233130828334142 |
|
2275 ms | 219.96.224.90 |
| 12 | 2026-08-26 03:48 | 639233120373450007 |
|
1912 ms | 219.96.224.90 |
| 11 | 2026-08-26 03:31 | 639233110066216193 |
|
3837 ms | 219.96.224.90 |
| 10 | 2026-08-26 02:38 | 639233078065410564 |
|
2268 ms | 219.96.224.90 |
| 9 | 2026-08-26 02:21 | 639233067787457832 |
|
4243 ms | 219.96.224.90 |
| 8 | 2026-08-26 02:03 | 639233057501801162 |
|
2268 ms | 219.96.224.90 |
| 7 | 2026-08-26 01:46 | 639233047089431703 |
|
2282 ms | 219.96.224.90 |
| 6 | 2026-08-26 01:29 | 639233036754790688 |
|
2275 ms | 219.96.224.90 |
| 5 | 2026-08-26 01:12 | 639233026412602472 |
|
2293 ms | 219.96.224.90 |
| 4 | 2026-08-26 00:54 | 639233016064066127 |
|
2275 ms | 219.96.224.90 |
| 3 | 2026-08-26 00:37 | 639233005922655772 |
|
2382 ms | 219.96.224.90 |
| 2 | 2026-08-26 00:20 | 639232995672256907 |
|
2263 ms | 219.96.224.90 |
| 1 | 2026-08-26 00:03 | 639232985300872416 |
|
2428 ms | 219.96.224.90 |