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 2026-08-21. For this date, NameServerHistory found 73 DNS check records, 73 successful responses, 0 failed responses, and 239 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
73
Historical checks stored for this nameserver on selected date
Average Latency
239 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-21 23:59
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
73
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 2026-08-21 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 |
|---|---|---|---|---|---|
| 73 | 2026-08-21 23:59 | 639229527598660841 |
|
3 ms | 210.102.249.20 |
| 72 | 2026-08-21 23:43 | 639229517954323214 |
|
3 ms | 210.102.249.20 |
| 71 | 2026-08-21 23:27 | 639229508269999021 |
|
3 ms | 210.102.249.20 |
| 70 | 2026-08-21 23:11 | 639229498559060171 |
|
596 ms | 210.102.249.20 |
| 69 | 2026-08-21 22:54 | 639229488519347586 |
|
4 ms | 210.102.249.20 |
| 68 | 2026-08-21 22:01 | 639229456606578934 |
|
2 ms | 210.102.249.20 |
| 67 | 2026-08-21 21:45 | 639229446985772499 |
|
3 ms | 210.102.249.20 |
| 66 | 2026-08-21 21:29 | 639229437367313098 |
|
2 ms | 210.102.249.20 |
| 65 | 2026-08-21 21:13 | 639229427923950391 |
|
574 ms | 210.102.249.20 |
| 64 | 2026-08-21 20:57 | 639229418168588854 |
|
585 ms | 210.102.249.20 |
| 63 | 2026-08-21 20:40 | 639229408345678334 |
|
598 ms | 210.102.249.20 |
| 62 | 2026-08-21 20:24 | 639229398616354648 |
|
11 ms | 210.102.249.20 |
| 61 | 2026-08-21 20:08 | 639229388634592323 |
|
908 ms | 210.102.249.20 |
| 60 | 2026-08-21 19:51 | 639229378792837692 |
|
308 ms | 210.102.249.20 |
| 59 | 2026-08-21 19:35 | 639229369154682311 |
|
605 ms | 210.102.249.20 |
| 58 | 2026-08-21 19:19 | 639229359248017926 |
|
590 ms | 210.102.249.20 |
| 57 | 2026-08-21 19:02 | 639229349124294642 |
|
3 ms | 210.102.249.20 |
| 56 | 2026-08-21 18:09 | 639229317791715692 |
|
603 ms | 210.102.249.20 |
| 55 | 2026-08-21 17:53 | 639229308115194575 |
|
554 ms | 210.102.249.20 |
| 54 | 2026-08-21 17:37 | 639229298320320558 |
|
4 ms | 210.102.249.20 |
| 53 | 2026-08-21 17:21 | 639229288674863221 |
|
2 ms | 210.102.249.20 |
| 52 | 2026-08-21 17:05 | 639229278983677079 |
|
3 ms | 210.102.249.20 |
| 51 | 2026-08-21 16:49 | 639229269405517175 |
|
586 ms | 210.102.249.20 |
| 50 | 2026-08-21 16:32 | 639229259594798244 |
|
581 ms | 210.102.249.20 |
| 49 | 2026-08-21 16:16 | 639229249736681188 |
|
580 ms | 210.102.249.20 |
| 48 | 2026-08-21 16:00 | 639229239699417787 |
|
297 ms | 210.102.249.20 |
| 47 | 2026-08-21 15:43 | 639229229621964033 |
|
4 ms | 210.102.249.20 |
| 46 | 2026-08-21 15:26 | 639229219567270965 |
|
5 ms | 210.102.249.20 |
| 45 | 2026-08-21 15:09 | 639229209406666856 |
|
3 ms | 210.102.249.20 |
| 44 | 2026-08-21 14:16 | 639229177815876178 |
|
7 ms | 210.102.249.20 |
| 43 | 2026-08-21 14:00 | 639229168243572685 |
|
5 ms | 210.102.249.20 |
| 42 | 2026-08-21 13:44 | 639229158599856475 |
|
4 ms | 210.102.249.20 |
| 41 | 2026-08-21 13:28 | 639229148998940902 |
|
4 ms | 210.102.249.20 |
| 40 | 2026-08-21 13:12 | 639229139276923594 |
|
3 ms | 210.102.249.20 |
| 39 | 2026-08-21 12:56 | 639229129709912394 |
|
584 ms | 210.102.249.20 |
| 38 | 2026-08-21 12:40 | 639229119801488500 |
|
586 ms | 210.102.249.20 |
| 37 | 2026-08-21 12:23 | 639229110135262458 |
|
586 ms | 210.102.249.20 |
| 36 | 2026-08-21 12:07 | 639229100336051392 |
|
855 ms | 210.102.249.20 |
| 35 | 2026-08-21 11:51 | 639229090641415626 |
|
588 ms | 210.102.249.20 |
| 34 | 2026-08-21 11:34 | 639229080702683947 |
|
4 ms | 210.102.249.20 |
| 33 | 2026-08-21 11:18 | 639229070601456699 |
|
3 ms | 210.102.249.20 |
| 32 | 2026-08-21 10:24 | 639229038947447232 |
|
295 ms | 210.102.249.20 |
| 31 | 2026-08-21 10:09 | 639229029268708773 |
|
4 ms | 210.102.249.20 |
| 30 | 2026-08-21 09:52 | 639229019647910603 |
|
2 ms | 210.102.249.20 |
| 29 | 2026-08-21 09:36 | 639229009983843738 |
|
3 ms | 210.102.249.20 |
| 28 | 2026-08-21 09:20 | 639229000203331882 |
|
587 ms | 210.102.249.20 |
| 27 | 2026-08-21 09:04 | 639228990302335999 |
|
4 ms | 210.102.249.20 |
| 26 | 2026-08-21 08:47 | 639228980567740722 |
|
585 ms | 210.102.249.20 |
| 25 | 2026-08-21 08:31 | 639228970762445174 |
|
4 ms | 210.102.249.20 |
| 24 | 2026-08-21 08:15 | 639228961065054445 |
|
580 ms | 210.102.249.20 |
| 23 | 2026-08-21 07:59 | 639228951224649885 |
|
3 ms | 210.102.249.20 |
| 22 | 2026-08-21 07:42 | 639228941303864592 |
|
602 ms | 210.102.249.20 |
| 21 | 2026-08-21 07:25 | 639228931191328583 |
|
4 ms | 210.102.249.20 |
| 20 | 2026-08-21 06:32 | 639228899518173317 |
|
3 ms | 210.102.249.20 |
| 19 | 2026-08-21 06:16 | 639228889785027669 |
|
3 ms | 210.102.249.20 |
| 18 | 2026-08-21 06:00 | 639228880106330161 |
|
2 ms | 210.102.249.20 |
| 17 | 2026-08-21 05:44 | 639228870316184091 |
|
581 ms | 210.102.249.20 |
| 16 | 2026-08-21 05:27 | 639228860695366512 |
|
580 ms | 210.102.249.20 |
| 15 | 2026-08-21 05:11 | 639228851027209500 |
|
2 ms | 210.102.249.20 |
| 14 | 2026-08-21 04:55 | 639228841479265462 |
|
3 ms | 210.102.249.20 |
| 13 | 2026-08-21 04:39 | 639228831752962260 |
|
579 ms | 210.102.249.20 |
| 12 | 2026-08-21 04:23 | 639228821953295483 |
|
3 ms | 210.102.249.20 |
| 11 | 2026-08-21 04:07 | 639228812227429953 |
|
570 ms | 210.102.249.20 |
| 10 | 2026-08-21 03:50 | 639228802476107538 |
|
583 ms | 210.102.249.20 |
| 9 | 2026-08-21 03:34 | 639228792525492032 |
|
30 ms | 210.102.249.20 |
| 8 | 2026-08-21 02:42 | 639228761131421385 |
|
8 ms | 210.102.249.20 |
| 7 | 2026-08-21 02:25 | 639228751571206692 |
|
582 ms | 210.102.249.20 |
| 6 | 2026-08-21 02:09 | 639228741705571019 |
|
7 ms | 210.102.249.20 |
| 5 | 2026-08-21 01:53 | 639228731642208228 |
|
3 ms | 210.102.249.20 |
| 4 | 2026-08-21 01:00 | 639228700387002072 |
|
10 ms | 210.102.249.20 |
| 3 | 2026-08-21 00:44 | 639228690742014433 |
|
7 ms | 210.102.249.20 |
| 2 | 2026-08-21 00:28 | 639228680877937122 |
|
3 ms | 210.102.249.20 |
| 1 | 2026-08-21 00:11 | 639228670775860800 |
|
2 ms | 210.102.249.20 |