History for ns.cyber.t.u-tokyo.ac.jp
Domain: u-tokyo.ac.jp • Tracking since 2026-08-04 23:25 UTC
DNS response history for ns.cyber.t.u-tokyo.ac.jp
ns.cyber.t.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 2026-08-24. For this date, NameServerHistory found 13 DNS check records, 13 successful responses, 0 failed responses, and 460 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.cyber.t.u-tokyo.ac.jp.
Records on Selected Date
13
Historical checks stored for this nameserver on selected date
Average Latency
460 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-24 05:18
All timestamps shown in UTC
Latest Resolved IP on Selected Date
157.82.13.216
Most recently resolved hosting IP on selected date
Successful Responses
13
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.cyber.t.u-tokyo.ac.jp
Showing DNS history for 2026-08-24 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 |
|---|---|---|---|---|---|
| 13 | 2026-08-24 05:18 | 639231447084631185 |
|
280 ms | 157.82.13.216 |
| 12 | 2026-08-24 05:02 | 639231437208519473 |
|
292 ms | 157.82.13.216 |
| 11 | 2026-08-24 04:45 | 639231427209627490 |
|
2008 ms | 157.82.13.216 |
| 10 | 2026-08-24 03:53 | 639231395791246644 |
|
294 ms | 157.82.13.216 |
| 9 | 2026-08-24 03:37 | 639231386075551458 |
|
450 ms | 157.82.13.216 |
| 8 | 2026-08-24 03:20 | 639231376208713791 |
|
268 ms | 157.82.13.216 |
| 7 | 2026-08-24 03:04 | 639231366170589276 |
|
281 ms | 157.82.13.216 |
| 6 | 2026-08-24 02:11 | 639231334732159368 |
|
251 ms | 157.82.13.216 |
| 5 | 2026-08-24 01:55 | 639231325035670078 |
|
282 ms | 157.82.13.216 |
| 4 | 2026-08-24 01:39 | 639231315132253837 |
|
229 ms | 157.82.13.216 |
| 3 | 2026-08-24 01:22 | 639231305014280808 |
|
292 ms | 157.82.13.216 |
| 2 | 2026-08-24 00:29 | 639231273779380675 |
|
780 ms | 157.82.13.216 |
| 1 | 2026-08-24 00:13 | 639231264180839154 |
|
277 ms | 157.82.13.216 |