DNS response history for ns2.coreserver.jp

ns2.coreserver.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 2026-08-11. For this date, NameServerHistory found 76 DNS check records, 75 successful responses, 1 failed responses, and 141 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 ns2.coreserver.jp.
Records on Selected Date

76

Historical checks stored for this nameserver on selected date

Average Latency

141 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-11 23:47

All timestamps shown in UTC

Latest Resolved IP on Selected Date

202.172.28.252

Most recently resolved hosting IP on selected date

Successful Responses

75

Checks that returned a measurable response

Failed Responses

1

Checks with no response or no returned latency

Failure Rate

1%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for ns2.coreserver.jp

Showing DNS history for 2026-08-11 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
76 2026-08-11 23:47 639220888396333845
84 ms 202.172.28.252
75 2026-08-11 23:31 639220878864937382
74 ms 202.172.28.252
74 2026-08-11 22:39 639220847369072314
81 ms 202.172.28.252
73 2026-08-11 22:23 639220838037764925
79 ms 202.172.28.252
72 2026-08-11 22:07 639220828735120634
23 ms 202.172.28.252
71 2026-08-11 21:52 639220819447979766
13 ms 202.172.28.252
70 2026-08-11 21:36 639220810056531741
34 ms 202.172.28.252
69 2026-08-11 21:21 639220800745746593
15 ms 202.172.28.252
68 2026-08-11 21:05 639220791351626349
16 ms 202.172.28.252
67 2026-08-11 20:50 639220782021256610
2032 ms 202.172.28.252
66 2026-08-11 20:34 639220772603347755
7 ms 202.172.28.252
65 2026-08-11 20:18 639220763224057047
1565 ms 202.172.28.252
64 2026-08-11 20:02 639220753691117767
59 ms 202.172.28.252
63 2026-08-11 19:46 639220744107836218
71 ms 202.172.28.252
62 2026-08-11 18:53 639220711927629898
17 ms 202.172.28.252
61 2026-08-11 18:37 639220702299437921
11 ms 202.172.28.252
60 2026-08-11 18:21 639220692505468181
31 ms 202.172.28.252
59 2026-08-11 18:04 639220682669911239
96 ms 202.172.28.252
58 2026-08-11 17:48 639220672929841526
6 ms 202.172.28.252
57 2026-08-11 17:32 639220663225662315
11 ms 202.172.28.252
56 2026-08-11 17:16 639220653846255684
29 ms 202.172.28.252
55 2026-08-11 17:00 639220644420909059
15 ms 202.172.28.252
54 2026-08-11 16:45 639220635074970435
9 ms 202.172.28.252
53 2026-08-11 16:29 639220625614385966
6 ms 202.172.28.252
52 2026-08-11 16:13 639220616132212636
32 ms 202.172.28.252
51 2026-08-11 15:57 639220606533651662
4 ms 202.172.28.252
50 2026-08-11 15:04 639220574514514318
6 ms 202.172.28.252
49 2026-08-11 14:48 639220565124823874
2036 ms 202.172.28.252
48 2026-08-11 14:33 639220555799311478
18 ms 202.172.28.252
47 2026-08-11 14:17 639220546481577614
17 ms 202.172.28.252
46 2026-08-11 14:01 639220537036533154
6 ms 202.172.28.252
45 2026-08-11 13:46 639220527719177174
11 ms 202.172.28.252
44 2026-08-11 13:30 639220518173088308
18 ms 202.172.28.252
43 2026-08-11 13:15 639220508902896243
271 ms 202.172.28.252
42 2026-08-11 12:59 639220499455923005
80 ms 202.172.28.252
41 2026-08-11 12:43 639220490082583768
27 ms 202.172.28.252
40 2026-08-11 12:27 639220480636590998
29 ms 202.172.28.252
39 2026-08-11 12:09 639220469585029273
30 ms 202.172.28.252
38 2026-08-11 11:16 639220438074188884
292 ms 202.172.28.252
37 2026-08-11 11:01 639220428789720049
7 ms 202.172.28.252
36 2026-08-11 10:45 639220419558302820
10 ms 202.172.28.252
35 2026-08-11 10:30 639220410448738795
6 ms 202.172.28.252
34 2026-08-11 10:15 639220401034081530
6 ms 202.172.28.252
33 2026-08-11 09:59 639220391766674161
5 ms 202.172.28.252
32 2026-08-11 09:43 639220382275807148
21 ms 202.172.28.252
31 2026-08-11 09:28 639220373034162867
30 ms 202.172.28.252
30 2026-08-11 09:13 639220363994971859
53 ms 202.172.28.252
29 2026-08-11 08:57 639220354563965455
52 ms 202.172.28.252
28 2026-08-11 08:42 639220345437414880
-
27 2026-08-11 08:26 639220336024248987
95 ms 202.172.28.252
26 2026-08-11 07:33 639220304233635692
26 ms 202.172.28.252
25 2026-08-11 07:18 639220294872170960
16 ms 202.172.28.252
24 2026-08-11 07:02 639220285547177980
28 ms 202.172.28.252
23 2026-08-11 06:47 639220276337941315
4 ms 202.172.28.252
22 2026-08-11 06:32 639220267175191677
22 ms 202.172.28.252
21 2026-08-11 06:16 639220257981518924
78 ms 202.172.28.252
20 2026-08-11 06:02 639220249265489070
40 ms 202.172.28.252
19 2026-08-11 05:47 639220240700249205
5 ms 202.172.28.252
18 2026-08-11 05:33 639220231975029986
57 ms 202.172.28.252
17 2026-08-11 05:18 639220223261176932
69 ms 202.172.28.252
16 2026-08-11 05:04 639220214366718456
6 ms 202.172.28.252
15 2026-08-11 04:48 639220205306334524
47 ms 202.172.28.252
14 2026-08-11 03:57 639220174463175061
49 ms 202.172.28.252
13 2026-08-11 03:43 639220165777190438
35 ms 202.172.28.252
12 2026-08-11 03:28 639220156880374825
48 ms 202.172.28.252
11 2026-08-11 03:13 639220148139986945
46 ms 202.172.28.252
10 2026-08-11 02:58 639220139271074299
41 ms 202.172.28.252
9 2026-08-11 02:44 639220130565901336
4 ms 202.172.28.252
8 2026-08-11 02:29 639220121659980575
6 ms 202.172.28.252
7 2026-08-11 02:14 639220112857650894
14 ms 202.172.28.252
6 2026-08-11 01:59 639220103767686219
9 ms 202.172.28.252
5 2026-08-11 01:44 639220094545970611
2028 ms 202.172.28.252
4 2026-08-11 01:29 639220085476091081
8 ms 202.172.28.252
3 2026-08-11 01:13 639220076243751161
16 ms 202.172.28.252
2 2026-08-11 00:22 639220045322845190
5 ms 202.172.28.252
1 2026-08-11 00:07 639220036434132314
308 ms 202.172.28.252