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 2026-08-28. For this date, NameServerHistory found 52 DNS check records, 52 successful responses, 0 failed responses, and 151 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

52

Historical checks stored for this nameserver on selected date

Average Latency

151 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-28 22:00

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

52

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 2026-08-28 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
52 2026-08-28 22:00 639235511923394567
17 ms 202.172.28.252
51 2026-08-28 21:43 639235501571282412
6 ms 202.172.28.252
50 2026-08-28 21:25 639235491147763512
16 ms 202.172.28.252
49 2026-08-28 21:08 639235480607057252
20 ms 202.172.28.252
48 2026-08-28 20:14 639235448504869535
4 ms 202.172.28.252
47 2026-08-28 19:57 639235438205961423
4 ms 202.172.28.252
46 2026-08-28 19:40 639235427771603643
289 ms 202.172.28.252
45 2026-08-28 19:22 639235417327437217
6 ms 202.172.28.252
44 2026-08-28 18:29 639235385468729647
31 ms 202.172.28.252
43 2026-08-28 18:12 639235375227508188
30 ms 202.172.28.252
42 2026-08-28 17:55 639235364947407812
11 ms 202.172.28.252
41 2026-08-28 17:37 639235354434017190
5 ms 202.172.28.252
40 2026-08-28 16:44 639235322621629103
5 ms 202.172.28.252
39 2026-08-28 16:27 639235312230592801
90 ms 202.172.28.252
38 2026-08-28 16:10 639235301738139314
25 ms 202.172.28.252
37 2026-08-28 15:52 639235291168160936
15 ms 202.172.28.252
36 2026-08-28 14:58 639235258803654519
9 ms 202.172.28.252
35 2026-08-28 14:41 639235248596087996
13 ms 202.172.28.252
34 2026-08-28 14:24 639235238225955920
2033 ms 202.172.28.252
33 2026-08-28 14:06 639235227727862105
9 ms 202.172.28.252
32 2026-08-28 13:12 639235195230848570
45 ms 202.172.28.252
31 2026-08-28 12:55 639235184840503274
18 ms 202.172.28.252
30 2026-08-28 12:37 639235174453894956
24 ms 202.172.28.252
29 2026-08-28 12:20 639235163898672622
9 ms 202.172.28.252
28 2026-08-28 11:27 639235132147470568
10 ms 202.172.28.252
27 2026-08-28 11:10 639235121907744088
8 ms 202.172.28.252
26 2026-08-28 10:52 639235111428014262
6 ms 202.172.28.252
25 2026-08-28 10:35 639235100921813626
51 ms 202.172.28.252
24 2026-08-28 09:41 639235068670703481
12 ms 202.172.28.252
23 2026-08-28 09:24 639235058337459445
67 ms 202.172.28.252
22 2026-08-28 09:06 639235047825109146
33 ms 202.172.28.252
21 2026-08-28 08:49 639235037383229033
2027 ms 202.172.28.252
20 2026-08-28 07:56 639235005619242711
16 ms 202.172.28.252
19 2026-08-28 07:39 639234995310346584
19 ms 202.172.28.252
18 2026-08-28 07:22 639234984946548933
32 ms 202.172.28.252
17 2026-08-28 07:04 639234974608077290
5 ms 202.172.28.252
16 2026-08-28 06:11 639234942529845595
29 ms 202.172.28.252
15 2026-08-28 05:54 639234932259126627
15 ms 202.172.28.252
14 2026-08-28 05:37 639234921916735988
37 ms 202.172.28.252
13 2026-08-28 05:19 639234911470038027
11 ms 202.172.28.252
12 2026-08-28 04:26 639234879588411654
14 ms 202.172.28.252
11 2026-08-28 04:09 639234869341589104
16 ms 202.172.28.252
10 2026-08-28 03:52 639234859012216675
32 ms 202.172.28.252
9 2026-08-28 03:34 639234848695364934
15 ms 202.172.28.252
8 2026-08-28 02:42 639234816952458162
11 ms 202.172.28.252
7 2026-08-28 02:25 639234806773081598
25 ms 202.172.28.252
6 2026-08-28 02:07 639234796382955255
10 ms 202.172.28.252
5 2026-08-28 01:50 639234786015782563
2504 ms 202.172.28.252
4 2026-08-28 00:56 639234753811917646
3 ms 202.172.28.252
3 2026-08-28 00:40 639234743739767811
19 ms 202.172.28.252
2 2026-08-28 00:22 639234733372362811
62 ms 202.172.28.252
1 2026-08-28 00:05 639234723048550337
27 ms 202.172.28.252