DNS response history for m30.coreserver.jp

m30.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 2026-08-19. For this date, NameServerHistory found 74 DNS check records, 72 successful responses, 2 failed responses, and 174 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 m30.coreserver.jp.
Records on Selected Date

74

Historical checks stored for this nameserver on selected date

Average Latency

174 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-19 23:46

All timestamps shown in UTC

Latest Resolved IP on Selected Date

202.172.26.31

Most recently resolved hosting IP on selected date

Successful Responses

72

Checks that returned a measurable response

Failed Responses

2

Checks with no response or no returned latency

Failure Rate

3%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for m30.coreserver.jp

Showing DNS history for 2026-08-19 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
74 2026-08-19 23:46 639227795899225951
4 ms 202.172.26.31
73 2026-08-19 23:30 639227786351762008
4 ms 202.172.26.31
72 2026-08-19 23:14 639227776640591733
2018 ms 202.172.26.31
71 2026-08-19 22:58 639227767128841282
-
70 2026-08-19 22:42 639227757477304711
92 ms 202.172.26.31
69 2026-08-19 22:25 639227747572098014
78 ms 202.172.26.31
68 2026-08-19 22:09 639227737588613113
12 ms 202.172.26.31
67 2026-08-19 21:16 639227706134603955
26 ms 202.172.26.31
66 2026-08-19 21:00 639227696589027396
-
65 2026-08-19 20:45 639227687097707639
19 ms 202.172.26.31
64 2026-08-19 20:29 639227677474464487
13 ms 202.172.26.31
63 2026-08-19 20:13 639227667767441118
8 ms 202.172.26.31
62 2026-08-19 19:56 639227657984833832
8 ms 202.172.26.31
61 2026-08-19 19:39 639227648079992640
63 ms 202.172.26.31
60 2026-08-19 19:23 639227638125048441
6 ms 202.172.26.31
59 2026-08-19 19:06 639227628211392142
17 ms 202.172.26.31
58 2026-08-19 18:50 639227618261696275
24 ms 202.172.26.31
57 2026-08-19 18:33 639227608366233645
23 ms 202.172.26.31
56 2026-08-19 18:17 639227598301787588
40 ms 202.172.26.31
55 2026-08-19 17:23 639227566241010716
23 ms 202.172.26.31
54 2026-08-19 17:07 639227556454538959
29 ms 202.172.26.31
53 2026-08-19 16:50 639227546640305542
74 ms 202.172.26.31
52 2026-08-19 16:34 639227536965466472
15 ms 202.172.26.31
51 2026-08-19 16:18 639227527048658280
14 ms 202.172.26.31
50 2026-08-19 16:02 639227517386634438
121 ms 202.172.26.31
49 2026-08-19 15:45 639227507459551637
8 ms 202.172.26.31
48 2026-08-19 15:29 639227497515595277
13 ms 202.172.26.31
47 2026-08-19 15:12 639227487441798036
76 ms 202.172.26.31
46 2026-08-19 14:55 639227477445551863
13 ms 202.172.26.31
45 2026-08-19 14:38 639227467297067891
331 ms 202.172.26.31
44 2026-08-19 14:21 639227457057795635
110 ms 202.172.26.31
43 2026-08-19 13:28 639227425244777397
15 ms 202.172.26.31
42 2026-08-19 13:12 639227415422116485
28 ms 202.172.26.31
41 2026-08-19 12:55 639227405307256053
35 ms 202.172.26.31
40 2026-08-19 12:38 639227395396602630
16 ms 202.172.26.31
39 2026-08-19 12:22 639227385510363611
40 ms 202.172.26.31
38 2026-08-19 12:05 639227375508324850
7 ms 202.172.26.31
37 2026-08-19 11:48 639227365326611906
162 ms 202.172.26.31
36 2026-08-19 11:32 639227355360014208
9 ms 202.172.26.31
35 2026-08-19 11:15 639227345036782165
25 ms 202.172.26.31
34 2026-08-19 10:58 639227334992964533
91 ms 202.172.26.31
33 2026-08-19 10:41 639227324986605572
76 ms 202.172.26.31
32 2026-08-19 10:24 639227314928414539
27 ms 202.172.26.31
31 2026-08-19 09:31 639227283029182134
19 ms 202.172.26.31
30 2026-08-19 09:15 639227273294779350
37 ms 202.172.26.31
29 2026-08-19 08:58 639227263525231313
42 ms 202.172.26.31
28 2026-08-19 08:42 639227253578313363
2025 ms 202.172.26.31
27 2026-08-19 08:25 639227243649973322
2037 ms 202.172.26.31
26 2026-08-19 08:09 639227233581059317
37 ms 202.172.26.31
25 2026-08-19 07:52 639227223667352067
5 ms 202.172.26.31
24 2026-08-19 07:36 639227213714837066
38 ms 202.172.26.31
23 2026-08-19 07:19 639227203701208496
14 ms 202.172.26.31
22 2026-08-19 07:02 639227193643202179
26 ms 202.172.26.31
21 2026-08-19 06:45 639227183584431597
27 ms 202.172.26.31
20 2026-08-19 06:28 639227173347403088
24 ms 202.172.26.31
19 2026-08-19 05:35 639227141523007601
29 ms 202.172.26.31
18 2026-08-19 05:19 639227131785931574
3 ms 202.172.26.31
17 2026-08-19 05:03 639227122176475389
25 ms 202.172.26.31
16 2026-08-19 04:47 639227112668934596
28 ms 202.172.26.31
15 2026-08-19 04:31 639227102773292788
6 ms 202.172.26.31
14 2026-08-19 04:14 639227093141136930
36 ms 202.172.26.31
13 2026-08-19 03:58 639227083449420147
2070 ms 202.172.26.31
12 2026-08-19 03:42 639227073771748493
27 ms 202.172.26.31
11 2026-08-19 03:26 639227063977347614
20 ms 202.172.26.31
10 2026-08-19 03:10 639227054253519024
8 ms 202.172.26.31
9 2026-08-19 02:53 639227044381963886
19 ms 202.172.26.31
8 2026-08-19 02:37 639227034441085514
2031 ms 202.172.26.31
7 2026-08-19 01:45 639227003126489968
4 ms 202.172.26.31
6 2026-08-19 01:29 639226993456311614
10 ms 202.172.26.31
5 2026-08-19 01:13 639226983847312345
18 ms 202.172.26.31
4 2026-08-19 00:57 639226974357874853
18 ms 202.172.26.31
3 2026-08-19 00:41 639226964670484721
18 ms 202.172.26.31
2 2026-08-19 00:24 639226954857899696
5 ms 202.172.26.31
1 2026-08-19 00:08 639226945091603488
6 ms 202.172.26.31