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 2026-08-26. For this date, NameServerHistory found 71 DNS check records, 71 successful responses, 0 failed responses, and 590 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

71

Historical checks stored for this nameserver on selected date

Average Latency

590 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 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

71

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 2026-08-26 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
71 2026-08-26 23:59 639233846871926285
595 ms 210.102.249.20
70 2026-08-26 23:05 639233814527872887
585 ms 210.102.249.20
69 2026-08-26 22:47 639233804315489381
587 ms 210.102.249.20
68 2026-08-26 22:30 639233793971346256
584 ms 210.102.249.20
67 2026-08-26 22:13 639233783644630463
588 ms 210.102.249.20
66 2026-08-26 21:56 639233773302621314
587 ms 210.102.249.20
65 2026-08-26 21:39 639233762896723748
573 ms 210.102.249.20
64 2026-08-26 21:21 639233752543876329
579 ms 210.102.249.20
63 2026-08-26 21:04 639233742155931788
600 ms 210.102.249.20
62 2026-08-26 20:47 639233731712555311
601 ms 210.102.249.20
61 2026-08-26 20:29 639233721164051126
588 ms 210.102.249.20
60 2026-08-26 20:12 639233710560486320
588 ms 210.102.249.20
59 2026-08-26 19:54 639233699834667450
582 ms 210.102.249.20
58 2026-08-26 18:59 639233667209186136
596 ms 210.102.249.20
57 2026-08-26 18:42 639233656814316266
572 ms 210.102.249.20
56 2026-08-26 18:24 639233646245051806
591 ms 210.102.249.20
55 2026-08-26 18:07 639233635663779051
598 ms 210.102.249.20
54 2026-08-26 17:49 639233624977342122
580 ms 210.102.249.20
53 2026-08-26 17:31 639233614446136153
581 ms 210.102.249.20
52 2026-08-26 17:13 639233603737877581
599 ms 210.102.249.20
51 2026-08-26 16:56 639233593269224651
575 ms 210.102.249.20
50 2026-08-26 16:38 639233582635086903
595 ms 210.102.249.20
49 2026-08-26 16:21 639233572000374575
575 ms 210.102.249.20
48 2026-08-26 16:03 639233561188633861
589 ms 210.102.249.20
47 2026-08-26 15:45 639233550544357027
585 ms 210.102.249.20
46 2026-08-26 14:50 639233517966053117
586 ms 210.102.249.20
45 2026-08-26 14:33 639233507603253585
594 ms 210.102.249.20
44 2026-08-26 14:16 639233497229039167
605 ms 210.102.249.20
43 2026-08-26 13:58 639233486864546406
560 ms 210.102.249.20
42 2026-08-26 13:41 639233476455174682
573 ms 210.102.249.20
41 2026-08-26 13:24 639233466171592605
596 ms 210.102.249.20
40 2026-08-26 13:07 639233455747096265
888 ms 210.102.249.20
39 2026-08-26 12:49 639233445367152284
587 ms 210.102.249.20
38 2026-08-26 12:32 639233434974187439
588 ms 210.102.249.20
37 2026-08-26 12:15 639233424567558554
597 ms 210.102.249.20
36 2026-08-26 11:57 639233414056832719
589 ms 210.102.249.20
35 2026-08-26 11:40 639233403515141099
587 ms 210.102.249.20
34 2026-08-26 10:45 639233370841350248
586 ms 210.102.249.20
33 2026-08-26 10:28 639233360361507238
817 ms 210.102.249.20
32 2026-08-26 10:10 639233350067824371
588 ms 210.102.249.20
31 2026-08-26 09:53 639233339545274518
613 ms 210.102.249.20
30 2026-08-26 09:36 639233329214918079
590 ms 210.102.249.20
29 2026-08-26 09:18 639233318749762337
590 ms 210.102.249.20
28 2026-08-26 09:01 639233308387917838
586 ms 210.102.249.20
27 2026-08-26 08:44 639233297961740122
692 ms 210.102.249.20
26 2026-08-26 08:26 639233287487159094
580 ms 210.102.249.20
25 2026-08-26 08:09 639233276995531707
584 ms 210.102.249.20
24 2026-08-26 07:51 639233266521568229
586 ms 210.102.249.20
23 2026-08-26 07:34 639233256081047431
571 ms 210.102.249.20
22 2026-08-26 06:40 639233223620132921
574 ms 210.102.249.20
21 2026-08-26 06:23 639233213287814244
584 ms 210.102.249.20
20 2026-08-26 06:05 639233202925983161
594 ms 210.102.249.20
19 2026-08-26 05:48 639233192644780696
578 ms 210.102.249.20
18 2026-08-26 05:31 639233182401183833
588 ms 210.102.249.20
17 2026-08-26 05:14 639233172074181051
582 ms 210.102.249.20
16 2026-08-26 04:57 639233161808421455
579 ms 210.102.249.20
15 2026-08-26 04:39 639233151357344052
584 ms 210.102.249.20
14 2026-08-26 04:22 639233141034116946
582 ms 210.102.249.20
13 2026-08-26 04:05 639233130828334142
602 ms 210.102.249.20
12 2026-08-26 03:48 639233120373450007
575 ms 210.102.249.20
11 2026-08-26 03:30 639233110066216193
584 ms 210.102.249.20
10 2026-08-26 02:37 639233078065410564
579 ms 210.102.249.20
9 2026-08-26 02:20 639233067787457832
600 ms 210.102.249.20
8 2026-08-26 02:03 639233057501801162
2 ms 210.102.249.20
7 2026-08-26 01:46 639233047089431703
586 ms 210.102.249.20
6 2026-08-26 01:28 639233036754790688
569 ms 210.102.249.20
5 2026-08-26 01:11 639233026412602472
585 ms 210.102.249.20
4 2026-08-26 00:54 639233016064066127
579 ms 210.102.249.20
3 2026-08-26 00:37 639233005922655772
588 ms 210.102.249.20
2 2026-08-26 00:20 639232995672256907
837 ms 210.102.249.20
1 2026-08-26 00:03 639232985300872416
582 ms 210.102.249.20