History for cpu.ac.kr
Domain: ac.kr • Tracking since 2026-08-04 23:25 UTC
DNS response history for cpu.ac.kr
cpu.ac.kr 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 2026-08-20. For this date, NameServerHistory found 57 DNS check records, 57 successful responses, 0 failed responses, and 418 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 cpu.ac.kr.
Records on Selected Date
57
Historical checks stored for this nameserver on selected date
Average Latency
418 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-20 23:19
All timestamps shown in UTC
Latest Resolved IP on Selected Date
210.102.249.20
Most recently resolved hosting IP on selected date
Successful Responses
57
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 cpu.ac.kr
Showing DNS history for 2026-08-20 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 |
|---|---|---|---|---|---|
| 57 | 2026-08-20 23:19 | 639228639850033448 |
|
396 ms | 210.102.249.20 |
| 56 | 2026-08-20 23:03 | 639228630204271870 |
|
584 ms | 210.102.249.20 |
| 55 | 2026-08-20 22:47 | 639228620295091135 |
|
5 ms | 210.102.249.20 |
| 54 | 2026-08-20 22:30 | 639228610298336915 |
|
4 ms | 210.102.249.20 |
| 53 | 2026-08-20 21:38 | 639228578917047616 |
|
571 ms | 210.102.249.20 |
| 52 | 2026-08-20 21:22 | 639228569046445709 |
|
3 ms | 210.102.249.20 |
| 51 | 2026-08-20 21:05 | 639228558946830986 |
|
3 ms | 210.102.249.20 |
| 50 | 2026-08-20 20:48 | 639228548977359217 |
|
874 ms | 210.102.249.20 |
| 49 | 2026-08-20 19:56 | 639228517494157668 |
|
3 ms | 210.102.249.20 |
| 48 | 2026-08-20 19:39 | 639228507374116892 |
|
578 ms | 210.102.249.20 |
| 47 | 2026-08-20 19:22 | 639228497315154893 |
|
579 ms | 210.102.249.20 |
| 46 | 2026-08-20 19:05 | 639228487287648341 |
|
578 ms | 210.102.249.20 |
| 45 | 2026-08-20 18:13 | 639228455828123788 |
|
580 ms | 210.102.249.20 |
| 44 | 2026-08-20 17:56 | 639228445900082244 |
|
589 ms | 210.102.249.20 |
| 43 | 2026-08-20 17:40 | 639228435866352323 |
|
561 ms | 210.102.249.20 |
| 42 | 2026-08-20 17:23 | 639228425802273151 |
|
589 ms | 210.102.249.20 |
| 41 | 2026-08-20 16:30 | 639228393616324230 |
|
317 ms | 210.102.249.20 |
| 40 | 2026-08-20 16:13 | 639228383590408693 |
|
584 ms | 210.102.249.20 |
| 39 | 2026-08-20 15:56 | 639228373471467474 |
|
7 ms | 210.102.249.20 |
| 38 | 2026-08-20 15:39 | 639228363426647311 |
|
3 ms | 210.102.249.20 |
| 37 | 2026-08-20 14:46 | 639228331681701910 |
|
593 ms | 210.102.249.20 |
| 36 | 2026-08-20 14:29 | 639228321714746824 |
|
594 ms | 210.102.249.20 |
| 35 | 2026-08-20 14:13 | 639228311652090262 |
|
2 ms | 210.102.249.20 |
| 34 | 2026-08-20 13:56 | 639228301670088587 |
|
4 ms | 210.102.249.20 |
| 33 | 2026-08-20 13:03 | 639228269987976710 |
|
585 ms | 210.102.249.20 |
| 32 | 2026-08-20 12:47 | 639228260009452308 |
|
590 ms | 210.102.249.20 |
| 31 | 2026-08-20 12:30 | 639228249661740894 |
|
4 ms | 210.102.249.20 |
| 30 | 2026-08-20 12:12 | 639228239552680346 |
|
588 ms | 210.102.249.20 |
| 29 | 2026-08-20 11:19 | 639228207667580819 |
|
580 ms | 210.102.249.20 |
| 28 | 2026-08-20 11:03 | 639228197494011560 |
|
573 ms | 210.102.249.20 |
| 27 | 2026-08-20 10:46 | 639228187497039939 |
|
583 ms | 210.102.249.20 |
| 26 | 2026-08-20 10:29 | 639228177408432646 |
|
589 ms | 210.102.249.20 |
| 25 | 2026-08-20 09:37 | 639228146356166262 |
|
4 ms | 210.102.249.20 |
| 24 | 2026-08-20 09:21 | 639228136541505712 |
|
589 ms | 210.102.249.20 |
| 23 | 2026-08-20 09:04 | 639228126519136598 |
|
4 ms | 210.102.249.20 |
| 22 | 2026-08-20 08:47 | 639228116537148885 |
|
3 ms | 210.102.249.20 |
| 21 | 2026-08-20 07:55 | 639228085320764351 |
|
597 ms | 210.102.249.20 |
| 20 | 2026-08-20 07:39 | 639228075444604839 |
|
575 ms | 210.102.249.20 |
| 19 | 2026-08-20 07:22 | 639228065615498985 |
|
9 ms | 210.102.249.20 |
| 18 | 2026-08-20 07:06 | 639228055675321422 |
|
592 ms | 210.102.249.20 |
| 17 | 2026-08-20 06:13 | 639228024230839396 |
|
17 ms | 210.102.249.20 |
| 16 | 2026-08-20 05:57 | 639228014720406505 |
|
573 ms | 210.102.249.20 |
| 15 | 2026-08-20 05:41 | 639228004930827030 |
|
33 ms | 210.102.249.20 |
| 14 | 2026-08-20 05:25 | 639227995103340154 |
|
4 ms | 210.102.249.20 |
| 13 | 2026-08-20 04:33 | 639227963811374894 |
|
580 ms | 210.102.249.20 |
| 12 | 2026-08-20 04:17 | 639227954132571365 |
|
34 ms | 210.102.249.20 |
| 11 | 2026-08-20 04:00 | 639227944541208342 |
|
589 ms | 210.102.249.20 |
| 10 | 2026-08-20 03:44 | 639227934657213484 |
|
593 ms | 210.102.249.20 |
| 9 | 2026-08-20 02:52 | 639227903628145469 |
|
3 ms | 210.102.249.20 |
| 8 | 2026-08-20 02:36 | 639227893995483475 |
|
599 ms | 210.102.249.20 |
| 7 | 2026-08-20 02:20 | 639227884280244209 |
|
2275 ms | 210.102.249.20 |
| 6 | 2026-08-20 02:04 | 639227874371147132 |
|
592 ms | 210.102.249.20 |
| 5 | 2026-08-20 01:12 | 639227843224256432 |
|
2799 ms | 210.102.249.20 |
| 4 | 2026-08-20 00:56 | 639227833720403506 |
|
32 ms | 210.102.249.20 |
| 3 | 2026-08-20 00:40 | 639227824170728278 |
|
3 ms | 210.102.249.20 |
| 2 | 2026-08-20 00:24 | 639227814865867570 |
|
3 ms | 210.102.249.20 |
| 1 | 2026-08-20 00:08 | 639227805445376839 |
|
3 ms | 210.102.249.20 |