DNS response history for ns.121bb.co.jp

ns.121bb.co.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 2026-08-25. For this date, NameServerHistory found 44 DNS check records, 44 successful responses, 0 failed responses, and 1024 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 ns.121bb.co.jp.
Records on Selected Date

44

Historical checks stored for this nameserver on selected date

Average Latency

1024 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-25 15:21

All timestamps shown in UTC

Latest Resolved IP on Selected Date

113.42.230.153

Most recently resolved hosting IP on selected date

Successful Responses

44

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 ns.121bb.co.jp

Showing DNS history for 2026-08-25 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
44 2026-08-25 15:21 639232671787004306
1683 ms 113.42.230.153
43 2026-08-25 14:27 639232638994329666
4 ms 113.42.230.153
42 2026-08-25 14:09 639232628614783237
1115 ms 113.42.230.153
41 2026-08-25 13:52 639232618360728578
1101 ms 113.42.230.153
40 2026-08-25 13:35 639232608016476376
5 ms 113.42.230.153
39 2026-08-25 13:18 639232597643611557
2 ms 113.42.230.153
38 2026-08-25 13:00 639232587225721862
1654 ms 113.42.230.153
37 2026-08-25 12:43 639232576780683689
1102 ms 113.42.230.153
36 2026-08-25 12:26 639232566381512620
1080 ms 113.42.230.153
35 2026-08-25 12:08 639232556111768563
1086 ms 113.42.230.153
34 2026-08-25 11:51 639232545839529039
1075 ms 113.42.230.153
33 2026-08-25 11:34 639232535349285207
4 ms 113.42.230.153
32 2026-08-25 11:16 639232524938080723
5 ms 113.42.230.153
31 2026-08-25 10:23 639232492740373468
1079 ms 113.42.230.153
30 2026-08-25 10:06 639232482235303141
1086 ms 113.42.230.153
29 2026-08-25 09:48 639232471861770303
5 ms 113.42.230.153
28 2026-08-25 09:31 639232461630217327
1113 ms 113.42.230.153
27 2026-08-25 09:14 639232451282965990
526 ms 113.42.230.153
26 2026-08-25 08:56 639232440814614938
1352 ms 113.42.230.153
25 2026-08-25 08:39 639232430410720425
1678 ms 113.42.230.153
24 2026-08-25 08:22 639232420003096185
509 ms 113.42.230.153
23 2026-08-25 08:04 639232409467287444
1671 ms 113.42.230.153
22 2026-08-25 07:47 639232399077195997
1094 ms 113.42.230.153
21 2026-08-25 07:29 639232388731528337
513 ms 113.42.230.153
20 2026-08-25 07:12 639232378288598612
1086 ms 113.42.230.153
19 2026-08-25 06:18 639232346196373643
1674 ms 113.42.230.153
18 2026-08-25 06:01 639232336112370741
1658 ms 113.42.230.153
17 2026-08-25 05:45 639232326146508970
523 ms 113.42.230.153
16 2026-08-25 05:28 639232316189381720
1676 ms 113.42.230.153
15 2026-08-25 05:11 639232306217998913
1083 ms 113.42.230.153
14 2026-08-25 04:55 639232296255744174
1068 ms 113.42.230.153
13 2026-08-25 04:38 639232286095760789
1062 ms 113.42.230.153
12 2026-08-25 04:21 639232276086186273
496 ms 113.42.230.153
11 2026-08-25 04:04 639232265900986425
1078 ms 113.42.230.153
10 2026-08-25 03:48 639232255723518075
1077 ms 113.42.230.153
9 2026-08-25 03:31 639232245484452890
1924 ms 113.42.230.153
8 2026-08-25 03:13 639232235157175331
1083 ms 113.42.230.153
7 2026-08-25 02:20 639232203197189095
1924 ms 113.42.230.153
6 2026-08-25 02:03 639232192844564298
1666 ms 113.42.230.153
5 2026-08-25 01:46 639232182496008942
503 ms 113.42.230.153
4 2026-08-25 01:28 639232172197053132
1076 ms 113.42.230.153
3 2026-08-25 00:35 639232140250307418
1085 ms 113.42.230.153
2 2026-08-25 00:18 639232129927860324
1660 ms 113.42.230.153
1 2026-08-25 00:01 639232119551972438
1096 ms 113.42.230.153