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 2026-08-19. For this date, NameServerHistory found 74 DNS check records, 74 successful responses, 0 failed responses, and 391 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
74
Historical checks stored for this nameserver on selected date
Average Latency
391 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-19 23:53
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
74
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 2026-08-19 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 |
|---|---|---|---|---|---|
| 74 | 2026-08-19 23:53 | 639227795899225951 |
|
3 ms | 210.102.249.20 |
| 73 | 2026-08-19 23:37 | 639227786351762008 |
|
278 ms | 210.102.249.20 |
| 72 | 2026-08-19 23:21 | 639227776640591733 |
|
578 ms | 210.102.249.20 |
| 71 | 2026-08-19 23:05 | 639227767128841282 |
|
2 ms | 210.102.249.20 |
| 70 | 2026-08-19 22:49 | 639227757477304711 |
|
578 ms | 210.102.249.20 |
| 69 | 2026-08-19 22:33 | 639227747572098014 |
|
3 ms | 210.102.249.20 |
| 68 | 2026-08-19 22:16 | 639227737588613113 |
|
577 ms | 210.102.249.20 |
| 67 | 2026-08-19 21:23 | 639227706134603955 |
|
4 ms | 210.102.249.20 |
| 66 | 2026-08-19 21:07 | 639227696589027396 |
|
583 ms | 210.102.249.20 |
| 65 | 2026-08-19 20:51 | 639227687097707639 |
|
2 ms | 210.102.249.20 |
| 64 | 2026-08-19 20:35 | 639227677474464487 |
|
575 ms | 210.102.249.20 |
| 63 | 2026-08-19 20:19 | 639227667767441118 |
|
4 ms | 210.102.249.20 |
| 62 | 2026-08-19 20:03 | 639227657984833832 |
|
840 ms | 210.102.249.20 |
| 61 | 2026-08-19 19:47 | 639227648079992640 |
|
6 ms | 210.102.249.20 |
| 60 | 2026-08-19 19:30 | 639227638125048441 |
|
6 ms | 210.102.249.20 |
| 59 | 2026-08-19 19:14 | 639227628211392142 |
|
806 ms | 210.102.249.20 |
| 58 | 2026-08-19 18:57 | 639227618261696275 |
|
582 ms | 210.102.249.20 |
| 57 | 2026-08-19 18:40 | 639227608366233645 |
|
577 ms | 210.102.249.20 |
| 56 | 2026-08-19 18:24 | 639227598301787588 |
|
598 ms | 210.102.249.20 |
| 55 | 2026-08-19 17:30 | 639227566241010716 |
|
4 ms | 210.102.249.20 |
| 54 | 2026-08-19 17:14 | 639227556454538959 |
|
3 ms | 210.102.249.20 |
| 53 | 2026-08-19 16:57 | 639227546640305542 |
|
3 ms | 210.102.249.20 |
| 52 | 2026-08-19 16:41 | 639227536965466472 |
|
3 ms | 210.102.249.20 |
| 51 | 2026-08-19 16:25 | 639227527048658280 |
|
2012 ms | 210.102.249.20 |
| 50 | 2026-08-19 16:09 | 639227517386634438 |
|
590 ms | 210.102.249.20 |
| 49 | 2026-08-19 15:52 | 639227507459551637 |
|
572 ms | 210.102.249.20 |
| 48 | 2026-08-19 15:36 | 639227497515595277 |
|
579 ms | 210.102.249.20 |
| 47 | 2026-08-19 15:19 | 639227487441798036 |
|
580 ms | 210.102.249.20 |
| 46 | 2026-08-19 15:02 | 639227477445551863 |
|
593 ms | 210.102.249.20 |
| 45 | 2026-08-19 14:45 | 639227467297067891 |
|
602 ms | 210.102.249.20 |
| 44 | 2026-08-19 14:28 | 639227457057795635 |
|
601 ms | 210.102.249.20 |
| 43 | 2026-08-19 13:35 | 639227425244777397 |
|
577 ms | 210.102.249.20 |
| 42 | 2026-08-19 13:19 | 639227415422116485 |
|
591 ms | 210.102.249.20 |
| 41 | 2026-08-19 13:02 | 639227405307256053 |
|
10 ms | 210.102.249.20 |
| 40 | 2026-08-19 12:45 | 639227395396602630 |
|
593 ms | 210.102.249.20 |
| 39 | 2026-08-19 12:29 | 639227385510363611 |
|
598 ms | 210.102.249.20 |
| 38 | 2026-08-19 12:12 | 639227375508324850 |
|
7 ms | 210.102.249.20 |
| 37 | 2026-08-19 11:55 | 639227365326611906 |
|
4 ms | 210.102.249.20 |
| 36 | 2026-08-19 11:39 | 639227355360014208 |
|
809 ms | 210.102.249.20 |
| 35 | 2026-08-19 11:22 | 639227345036782165 |
|
591 ms | 210.102.249.20 |
| 34 | 2026-08-19 11:05 | 639227334992964533 |
|
587 ms | 210.102.249.20 |
| 33 | 2026-08-19 10:48 | 639227324986605572 |
|
606 ms | 210.102.249.20 |
| 32 | 2026-08-19 10:31 | 639227314928414539 |
|
619 ms | 210.102.249.20 |
| 31 | 2026-08-19 09:38 | 639227283029182134 |
|
589 ms | 210.102.249.20 |
| 30 | 2026-08-19 09:22 | 639227273294779350 |
|
569 ms | 210.102.249.20 |
| 29 | 2026-08-19 09:05 | 639227263525231313 |
|
585 ms | 210.102.249.20 |
| 28 | 2026-08-19 08:49 | 639227253578313363 |
|
592 ms | 210.102.249.20 |
| 27 | 2026-08-19 08:33 | 639227243649973322 |
|
595 ms | 210.102.249.20 |
| 26 | 2026-08-19 08:16 | 639227233581059317 |
|
2 ms | 210.102.249.20 |
| 25 | 2026-08-19 07:59 | 639227223667352067 |
|
3 ms | 210.102.249.20 |
| 24 | 2026-08-19 07:43 | 639227213714837066 |
|
5 ms | 210.102.249.20 |
| 23 | 2026-08-19 07:26 | 639227203701208496 |
|
4 ms | 210.102.249.20 |
| 22 | 2026-08-19 07:09 | 639227193643202179 |
|
584 ms | 210.102.249.20 |
| 21 | 2026-08-19 06:53 | 639227183584431597 |
|
598 ms | 210.102.249.20 |
| 20 | 2026-08-19 06:36 | 639227173347403088 |
|
592 ms | 210.102.249.20 |
| 19 | 2026-08-19 05:42 | 639227141523007601 |
|
577 ms | 210.102.249.20 |
| 18 | 2026-08-19 05:26 | 639227131785931574 |
|
592 ms | 210.102.249.20 |
| 17 | 2026-08-19 05:10 | 639227122176475389 |
|
3 ms | 210.102.249.20 |
| 16 | 2026-08-19 04:54 | 639227112668934596 |
|
599 ms | 210.102.249.20 |
| 15 | 2026-08-19 04:38 | 639227102773292788 |
|
583 ms | 210.102.249.20 |
| 14 | 2026-08-19 04:21 | 639227093141136930 |
|
7 ms | 210.102.249.20 |
| 13 | 2026-08-19 04:05 | 639227083449420147 |
|
581 ms | 210.102.249.20 |
| 12 | 2026-08-19 03:49 | 639227073771748493 |
|
589 ms | 210.102.249.20 |
| 11 | 2026-08-19 03:33 | 639227063977347614 |
|
276 ms | 210.102.249.20 |
| 10 | 2026-08-19 03:17 | 639227054253519024 |
|
8 ms | 210.102.249.20 |
| 9 | 2026-08-19 03:00 | 639227044381963886 |
|
597 ms | 210.102.249.20 |
| 8 | 2026-08-19 02:44 | 639227034441085514 |
|
584 ms | 210.102.249.20 |
| 7 | 2026-08-19 01:51 | 639227003126489968 |
|
4 ms | 210.102.249.20 |
| 6 | 2026-08-19 01:35 | 639226993456311614 |
|
3 ms | 210.102.249.20 |
| 5 | 2026-08-19 01:19 | 639226983847312345 |
|
284 ms | 210.102.249.20 |
| 4 | 2026-08-19 01:03 | 639226974357874853 |
|
3 ms | 210.102.249.20 |
| 3 | 2026-08-19 00:47 | 639226964670484721 |
|
3 ms | 210.102.249.20 |
| 2 | 2026-08-19 00:31 | 639226954857899696 |
|
588 ms | 210.102.249.20 |
| 1 | 2026-08-19 00:15 | 639226945091603488 |
|
3 ms | 210.102.249.20 |