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 2026-08-15. For this date, NameServerHistory found 76 DNS check records, 76 successful responses, 0 failed responses, and 352 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

352 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-15 23:53

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

76

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 2026-08-15 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 2026-08-15 23:53 639224347685767174
56 ms 202.172.28.252
75 2026-08-15 23:37 639224338276675277
54 ms 202.172.28.252
74 2026-08-15 22:44 639224306594546649
53 ms 202.172.28.252
73 2026-08-15 22:28 639224297145423303
16 ms 202.172.28.252
72 2026-08-15 22:13 639224287678238833
4016 ms 202.172.28.252
71 2026-08-15 21:57 639224278490872828
7 ms 202.172.28.252
70 2026-08-15 21:42 639224269149307826
7 ms 202.172.28.252
69 2026-08-15 21:26 639224259868597616
34 ms 202.172.28.252
68 2026-08-15 21:11 639224250518642175
28 ms 202.172.28.252
67 2026-08-15 20:55 639224241064772383
63 ms 202.172.28.252
66 2026-08-15 20:39 639224231691099605
54 ms 202.172.28.252
65 2026-08-15 20:24 639224222468168159
13 ms 202.172.28.252
64 2026-08-15 20:09 639224213173899635
37 ms 202.172.28.252
63 2026-08-15 19:53 639224203914451783
8 ms 202.172.28.252
62 2026-08-15 19:00 639224172202542163
2083 ms 202.172.28.252
61 2026-08-15 18:46 639224163338654093
18 ms 202.172.28.252
60 2026-08-15 18:30 639224154287995374
47 ms 202.172.28.252
59 2026-08-15 18:15 639224145118612503
5 ms 202.172.28.252
58 2026-08-15 18:00 639224135995990731
38 ms 202.172.28.252
57 2026-08-15 17:45 639224127185332624
37 ms 202.172.28.252
56 2026-08-15 17:30 639224118229289175
16 ms 202.172.28.252
55 2026-08-15 17:15 639224109273796359
50 ms 202.172.28.252
54 2026-08-15 17:01 639224100490805608
22 ms 202.172.28.252
53 2026-08-15 16:46 639224091353714490
54 ms 202.172.28.252
52 2026-08-15 16:30 639224082033126828
9 ms 202.172.28.252
51 2026-08-15 16:14 639224072736962403
28 ms 202.172.28.252
50 2026-08-15 15:22 639224041475563754
2031 ms 202.172.28.252
49 2026-08-15 15:07 639224032345604453
72 ms 202.172.28.252
48 2026-08-15 14:52 639224023169497283
32 ms 202.172.28.252
47 2026-08-15 14:36 639224013981146405
2032 ms 202.172.28.252
46 2026-08-15 14:21 639224004883412586
25 ms 202.172.28.252
45 2026-08-15 14:06 639223995612880615
24 ms 202.172.28.252
44 2026-08-15 13:50 639223986271830789
13 ms 202.172.28.252
43 2026-08-15 13:35 639223977005780949
21 ms 202.172.28.252
42 2026-08-15 13:19 639223967653137793
29 ms 202.172.28.252
41 2026-08-15 13:04 639223958286010799
2021 ms 202.172.28.252
40 2026-08-15 12:48 639223948936108345
4 ms 202.172.28.252
39 2026-08-15 12:33 639223939673066880
36 ms 202.172.28.252
38 2026-08-15 11:40 639223908317760530
7 ms 202.172.28.252
37 2026-08-15 11:25 639223898992594258
13 ms 202.172.28.252
36 2026-08-15 11:09 639223889761312823
21 ms 202.172.28.252
35 2026-08-15 10:54 639223880359273507
84 ms 202.172.28.252
34 2026-08-15 10:38 639223870920466808
34 ms 202.172.28.252
33 2026-08-15 10:22 639223861579762179
5 ms 202.172.28.252
32 2026-08-15 10:07 639223852238616009
2025 ms 202.172.28.252
31 2026-08-15 09:51 639223843019815620
34 ms 202.172.28.252
30 2026-08-15 09:36 639223833669915012
49 ms 202.172.28.252
29 2026-08-15 09:21 639223824494613222
163 ms 202.172.28.252
28 2026-08-15 09:05 639223815116325293
13 ms 202.172.28.252
27 2026-08-15 08:49 639223805493870221
2028 ms 202.172.28.252
26 2026-08-15 07:57 639223774218660438
65 ms 202.172.28.252
25 2026-08-15 07:41 639223764663090372
11 ms 202.172.28.252
24 2026-08-15 07:25 639223755338811400
2023 ms 202.172.28.252
23 2026-08-15 07:10 639223746019193268
80 ms 202.172.28.252
22 2026-08-15 06:54 639223736658778104
56 ms 202.172.28.252
21 2026-08-15 06:39 639223727330194499
44 ms 202.172.28.252
20 2026-08-15 06:23 639223717848514742
10 ms 202.172.28.252
19 2026-08-15 06:07 639223708284754056
52 ms 202.172.28.252
18 2026-08-15 05:51 639223699061259933
8 ms 202.172.28.252
17 2026-08-15 05:36 639223689592545140
6 ms 202.172.28.252
16 2026-08-15 05:20 639223680143410810
2046 ms 202.172.28.252
15 2026-08-15 05:04 639223670514517104
17 ms 202.172.28.252
14 2026-08-15 04:11 639223638855054294
23 ms 202.172.28.252
13 2026-08-15 03:56 639223629623335972
50 ms 202.172.28.252
12 2026-08-15 03:40 639223620390189495
2028 ms 202.172.28.252
11 2026-08-15 03:25 639223610916950440
2046 ms 202.172.28.252
10 2026-08-15 03:09 639223601597759168
23 ms 202.172.28.252
9 2026-08-15 02:54 639223592342172093
33 ms 202.172.28.252
8 2026-08-15 02:39 639223583324121497
23 ms 202.172.28.252
7 2026-08-15 02:23 639223574086714218
12 ms 202.172.28.252
6 2026-08-15 02:08 639223564698424889
66 ms 202.172.28.252
5 2026-08-15 01:52 639223555408664206
111 ms 202.172.28.252
4 2026-08-15 01:36 639223546000912416
77 ms 202.172.28.252
3 2026-08-15 01:21 639223536550774847
110 ms 202.172.28.252
2 2026-08-15 00:28 639223505017205611
49 ms 202.172.28.252
1 2026-08-15 00:13 639223495784410207
5 ms 202.172.28.252