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 2026-08-10. For this date, NameServerHistory found 82 DNS check records, 82 successful responses, 0 failed responses, and 269 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

82

Historical checks stored for this nameserver on selected date

Average Latency

269 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-10 23:52

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

82

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 ns2.coreserver.jp

Showing DNS history for 2026-08-10 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
82 2026-08-10 23:52 639220027366289509
43 ms 202.172.28.252
81 2026-08-10 23:37 639220018272941900
102 ms 202.172.28.252
80 2026-08-10 23:21 639220009109892969
37 ms 202.172.28.252
79 2026-08-10 23:06 639220000040489788
68 ms 202.172.28.252
78 2026-08-10 22:52 639219991197135747
25 ms 202.172.28.252
77 2026-08-10 22:36 639219982104540014
6 ms 202.172.28.252
76 2026-08-10 22:22 639219973150300215
32 ms 202.172.28.252
75 2026-08-10 22:07 639219964188486697
22 ms 202.172.28.252
74 2026-08-10 21:51 639219954995921784
2030 ms 202.172.28.252
73 2026-08-10 21:36 639219945559908104
272 ms 202.172.28.252
72 2026-08-10 20:43 639219914137782273
5 ms 202.172.28.252
71 2026-08-10 20:28 639219904858355064
247 ms 202.172.28.252
70 2026-08-10 20:12 639219895655263396
25 ms 202.172.28.252
69 2026-08-10 19:57 639219886527091074
32 ms 202.172.28.252
68 2026-08-10 19:42 639219877343266628
166 ms 202.172.28.252
67 2026-08-10 19:27 639219868177358195
15 ms 202.172.28.252
66 2026-08-10 19:12 639219859159581515
28 ms 202.172.28.252
65 2026-08-10 18:57 639219850124020182
40 ms 202.172.28.252
64 2026-08-10 18:41 639219840940124840
15 ms 202.172.28.252
63 2026-08-10 18:26 639219831829876486
35 ms 202.172.28.252
62 2026-08-10 18:11 639219822587759143
8 ms 202.172.28.252
61 2026-08-10 17:55 639219813247114428
106 ms 202.172.28.252
60 2026-08-10 17:03 639219781959606396
7 ms 202.172.28.252
59 2026-08-10 16:48 639219772658305431
8 ms 202.172.28.252
58 2026-08-10 16:32 639219763454523027
13 ms 202.172.28.252
57 2026-08-10 16:17 639219754279127815
20 ms 202.172.28.252
56 2026-08-10 16:02 639219745087467767
19 ms 202.172.28.252
55 2026-08-10 15:46 639219735900678107
57 ms 202.172.28.252
54 2026-08-10 15:31 639219726531461979
31 ms 202.172.28.252
53 2026-08-10 15:15 639219717415222156
42 ms 202.172.28.252
52 2026-08-10 15:00 639219708266470863
26 ms 202.172.28.252
51 2026-08-10 14:45 639219699049479559
85 ms 202.172.28.252
50 2026-08-10 14:29 639219689775815194
5 ms 202.172.28.252
49 2026-08-10 14:14 639219680511810632
21 ms 202.172.28.252
48 2026-08-10 13:21 639219648997191257
36 ms 202.172.28.252
47 2026-08-10 13:06 639219639938909436
39 ms 202.172.28.252
46 2026-08-10 12:51 639219630718286441
46 ms 202.172.28.252
45 2026-08-10 12:35 639219621472350410
39 ms 202.172.28.252
44 2026-08-10 12:21 639219612500421992
2031 ms 202.172.28.252
43 2026-08-10 12:05 639219603383833445
14 ms 202.172.28.252
42 2026-08-10 11:50 639219594143823358
58 ms 202.172.28.252
41 2026-08-10 11:35 639219585053166024
2298 ms 202.172.28.252
40 2026-08-10 11:20 639219575885776644
8 ms 202.172.28.252
39 2026-08-10 11:04 639219566844532361
8 ms 202.172.28.252
38 2026-08-10 10:49 639219557705808294
4 ms 202.172.28.252
37 2026-08-10 10:34 639219548482688649
48 ms 202.172.28.252
36 2026-08-10 09:42 639219517492763539
8 ms 202.172.28.252
35 2026-08-10 09:28 639219508755773605
25 ms 202.172.28.252
34 2026-08-10 09:13 639219499852103863
15 ms 202.172.28.252
33 2026-08-10 08:58 639219490893714387
25 ms 202.172.28.252
32 2026-08-10 08:44 639219482299305521
2040 ms 202.172.28.252
31 2026-08-10 08:29 639219473613114853
27 ms 202.172.28.252
30 2026-08-10 08:15 639219465061138643
24 ms 202.172.28.252
29 2026-08-10 08:01 639219456616129015
14 ms 202.172.28.252
28 2026-08-10 07:46 639219447974008557
21 ms 202.172.28.252
27 2026-08-10 07:32 639219439498255213
6 ms 202.172.28.252
26 2026-08-10 07:17 639219430664872256
21 ms 202.172.28.252
25 2026-08-10 07:03 639219421757560037
31 ms 202.172.28.252
24 2026-08-10 06:11 639219390773218684
54 ms 202.172.28.252
23 2026-08-10 05:57 639219382205367722
45 ms 202.172.28.252
22 2026-08-10 05:42 639219373711937615
15 ms 202.172.28.252
21 2026-08-10 05:28 639219365088558404
2034 ms 202.172.28.252
20 2026-08-10 05:13 639219356348833255
36 ms 202.172.28.252
19 2026-08-10 04:59 639219347860053478
73 ms 202.172.28.252
18 2026-08-10 04:45 639219339173195121
2026 ms 202.172.28.252
17 2026-08-10 04:31 639219330642664669
30 ms 202.172.28.252
16 2026-08-10 04:16 639219322058698995
2027 ms 202.172.28.252
15 2026-08-10 04:02 639219313564344199
2021 ms 202.172.28.252
14 2026-08-10 03:47 639219304775113236
11 ms 202.172.28.252
13 2026-08-10 03:32 639219295706181119
11 ms 202.172.28.252
12 2026-08-10 02:41 639219264663923254
92 ms 202.172.28.252
11 2026-08-10 02:26 639219256015178099
67 ms 202.172.28.252
10 2026-08-10 02:12 639219247509540188
2059 ms 202.172.28.252
9 2026-08-10 01:58 639219238999539092
34 ms 202.172.28.252
8 2026-08-10 01:44 639219230498823902
16 ms 202.172.28.252
7 2026-08-10 01:29 639219221706460911
146 ms 202.172.28.252
6 2026-08-10 01:14 639219212930606887
106 ms 202.172.28.252
5 2026-08-10 01:00 639219204307908525
192 ms 202.172.28.252
4 2026-08-10 00:46 639219195720181470
85 ms 202.172.28.252
3 2026-08-10 00:31 639219186898174002
145 ms 202.172.28.252
2 2026-08-10 00:16 639219178004946976
37 ms 202.172.28.252
1 2026-08-10 00:01 639219168958805474
102 ms 202.172.28.252