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 2026-08-27. For this date, NameServerHistory found 71 DNS check records, 71 successful responses, 0 failed responses, and 282 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

71

Historical checks stored for this nameserver on selected date

Average Latency

282 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-27 23:11

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

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 ns2.coreserver.jp

Showing DNS history for 2026-08-27 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 2026-08-27 23:11 639234690580226618
2039 ms 202.172.28.252
70 2026-08-27 22:54 639234680477852135
16 ms 202.172.28.252
69 2026-08-27 22:37 639234670282270693
15 ms 202.172.28.252
68 2026-08-27 22:20 639234660146106544
2030 ms 202.172.28.252
67 2026-08-27 22:03 639234649768231829
41 ms 202.172.28.252
66 2026-08-27 21:46 639234639589413826
14 ms 202.172.28.252
65 2026-08-27 21:29 639234629372993861
13 ms 202.172.28.252
64 2026-08-27 21:12 639234619223904344
25 ms 202.172.28.252
63 2026-08-27 20:55 639234608944811927
11 ms 202.172.28.252
62 2026-08-27 20:38 639234598661858910
10 ms 202.172.28.252
61 2026-08-27 20:21 639234588314533893
16 ms 202.172.28.252
60 2026-08-27 20:03 639234577878211878
5 ms 202.172.28.252
59 2026-08-27 19:09 639234545578367474
19 ms 202.172.28.252
58 2026-08-27 18:52 639234535255111795
2032 ms 202.172.28.252
57 2026-08-27 18:35 639234525107594067
17 ms 202.172.28.252
56 2026-08-27 18:18 639234514890244566
11 ms 202.172.28.252
55 2026-08-27 18:01 639234504745477862
19 ms 202.172.28.252
54 2026-08-27 17:44 639234494449227290
5 ms 202.172.28.252
53 2026-08-27 17:27 639234484118025686
66 ms 202.172.28.252
52 2026-08-27 17:10 639234473946362077
72 ms 202.172.28.252
51 2026-08-27 16:53 639234463759124388
4 ms 202.172.28.252
50 2026-08-27 16:36 639234453500759178
22 ms 202.172.28.252
49 2026-08-27 16:18 639234442983541638
23 ms 202.172.28.252
48 2026-08-27 16:01 639234432404354562
15 ms 202.172.28.252
47 2026-08-27 15:06 639234399767719119
70 ms 202.172.28.252
46 2026-08-27 14:49 639234389460601485
7 ms 202.172.28.252
45 2026-08-27 14:32 639234379227178707
13 ms 202.172.28.252
44 2026-08-27 14:15 639234369065315214
16 ms 202.172.28.252
43 2026-08-27 13:58 639234358825501576
22 ms 202.172.28.252
42 2026-08-27 13:41 639234348572745268
4 ms 202.172.28.252
41 2026-08-27 13:24 639234338264503481
24 ms 202.172.28.252
40 2026-08-27 13:06 639234327818741376
69 ms 202.172.28.252
39 2026-08-27 12:49 639234317475724313
27 ms 202.172.28.252
38 2026-08-27 12:32 639234307007468133
34 ms 202.172.28.252
37 2026-08-27 12:14 639234296664302575
5 ms 202.172.28.252
36 2026-08-27 11:57 639234286253196126
2017 ms 202.172.28.252
35 2026-08-27 11:03 639234253963286387
8 ms 202.172.28.252
34 2026-08-27 10:46 639234243654907465
9 ms 202.172.28.252
33 2026-08-27 10:29 639234233269654413
17 ms 202.172.28.252
32 2026-08-27 10:12 639234222943951923
38 ms 202.172.28.252
31 2026-08-27 09:54 639234212558002823
37 ms 202.172.28.252
30 2026-08-27 09:37 639234202117531850
26 ms 202.172.28.252
29 2026-08-27 09:19 639234191649612722
17 ms 202.172.28.252
28 2026-08-27 09:02 639234181105879568
22 ms 202.172.28.252
27 2026-08-27 08:45 639234170713214496
18 ms 202.172.28.252
26 2026-08-27 08:27 639234160341037652
7 ms 202.172.28.252
25 2026-08-27 08:10 639234149799404224
11 ms 202.172.28.252
24 2026-08-27 07:53 639234139553286469
346 ms 202.172.28.252
23 2026-08-27 06:59 639234107183588293
71 ms 202.172.28.252
22 2026-08-27 06:42 639234096905435724
17 ms 202.172.28.252
21 2026-08-27 06:24 639234086579410775
4 ms 202.172.28.252
20 2026-08-27 06:07 639234076291157956
26 ms 202.172.28.252
19 2026-08-27 05:50 639234065981939454
44 ms 202.172.28.252
18 2026-08-27 05:33 639234055548642997
2053 ms 202.172.28.252
17 2026-08-27 05:15 639234045267979603
57 ms 202.172.28.252
16 2026-08-27 04:58 639234034999717463
59 ms 202.172.28.252
15 2026-08-27 04:41 639234024739225358
14 ms 202.172.28.252
14 2026-08-27 04:24 639234014311170162
32 ms 202.172.28.252
13 2026-08-27 04:06 639234003806017640
20 ms 202.172.28.252
12 2026-08-27 03:49 639233993356203030
15 ms 202.172.28.252
11 2026-08-27 02:56 639233961301716608
12 ms 202.172.28.252
10 2026-08-27 02:38 639233950834200647
4011 ms 202.172.28.252
9 2026-08-27 02:21 639233940431849026
36 ms 202.172.28.252
8 2026-08-27 02:04 639233930110596398
4020 ms 202.172.28.252
7 2026-08-27 01:46 639233919705434540
46 ms 202.172.28.252
6 2026-08-27 01:29 639233909452807845
10 ms 202.172.28.252
5 2026-08-27 01:12 639233899096420820
21 ms 202.172.28.252
4 2026-08-27 00:55 639233888707824939
31 ms 202.172.28.252
3 2026-08-27 00:37 639233878461203802
12 ms 202.172.28.252
2 2026-08-27 00:20 639233868060868209
17 ms 202.172.28.252
1 2026-08-27 00:02 639233857450922991
15 ms 202.172.28.252