DNS response history for dns1.suginami.ac.jp

dns1.suginami.ac.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 2026-08-26. For this date, NameServerHistory found 48 DNS check records, 48 successful responses, 0 failed responses, and 533 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 dns1.suginami.ac.jp.
Records on Selected Date

48

Historical checks stored for this nameserver on selected date

Average Latency

533 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 16:02

All timestamps shown in UTC

Latest Resolved IP on Selected Date

221.112.48.242

Most recently resolved hosting IP on selected date

Successful Responses

48

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 dns1.suginami.ac.jp

Showing DNS history for 2026-08-26 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
48 2026-08-26 16:02 639233561188633861
496 ms 221.112.48.242
47 2026-08-26 15:44 639233550544357027
752 ms 221.112.48.242
46 2026-08-26 14:50 639233517966053117
529 ms 221.112.48.242
45 2026-08-26 14:32 639233507603253585
510 ms 221.112.48.242
44 2026-08-26 14:15 639233497229039167
499 ms 221.112.48.242
43 2026-08-26 13:58 639233486864546406
518 ms 221.112.48.242
42 2026-08-26 13:41 639233476455174682
508 ms 221.112.48.242
41 2026-08-26 13:23 639233466171592605
518 ms 221.112.48.242
40 2026-08-26 13:06 639233455747096265
512 ms 221.112.48.242
39 2026-08-26 12:49 639233445367152284
506 ms 221.112.48.242
38 2026-08-26 12:31 639233434974187439
537 ms 221.112.48.242
37 2026-08-26 12:14 639233424567558554
503 ms 221.112.48.242
36 2026-08-26 11:57 639233414056832719
779 ms 221.112.48.242
35 2026-08-26 11:39 639233403515141099
505 ms 221.112.48.242
34 2026-08-26 10:44 639233370841350248
509 ms 221.112.48.242
33 2026-08-26 10:27 639233360361507238
509 ms 221.112.48.242
32 2026-08-26 10:10 639233350067824371
514 ms 221.112.48.242
31 2026-08-26 09:53 639233339545274518
520 ms 221.112.48.242
30 2026-08-26 09:35 639233329214918079
504 ms 221.112.48.242
29 2026-08-26 09:18 639233318749762337
9 ms 221.112.48.242
28 2026-08-26 09:00 639233308387917838
504 ms 221.112.48.242
27 2026-08-26 08:43 639233297961740122
508 ms 221.112.48.242
26 2026-08-26 08:26 639233287487159094
516 ms 221.112.48.242
25 2026-08-26 08:08 639233276995531707
808 ms 221.112.48.242
24 2026-08-26 07:51 639233266521568229
509 ms 221.112.48.242
23 2026-08-26 07:33 639233256081047431
503 ms 221.112.48.242
22 2026-08-26 06:39 639233223620132921
518 ms 221.112.48.242
21 2026-08-26 06:22 639233213287814244
498 ms 221.112.48.242
20 2026-08-26 06:05 639233202925983161
507 ms 221.112.48.242
19 2026-08-26 05:47 639233192644780696
504 ms 221.112.48.242
18 2026-08-26 05:30 639233182401183833
4 ms 221.112.48.242
17 2026-08-26 05:13 639233172074181051
3 ms 221.112.48.242
16 2026-08-26 04:56 639233161808421455
4 ms 221.112.48.242
15 2026-08-26 04:39 639233151357344052
509 ms 221.112.48.242
14 2026-08-26 04:21 639233141034116946
526 ms 221.112.48.242
13 2026-08-26 04:04 639233130828334142
4 ms 221.112.48.242
12 2026-08-26 03:47 639233120373450007
517 ms 221.112.48.242
11 2026-08-26 03:30 639233110066216193
518 ms 221.112.48.242
10 2026-08-26 02:37 639233078065410564
753 ms 221.112.48.242
9 2026-08-26 02:19 639233067787457832
522 ms 221.112.48.242
8 2026-08-26 02:02 639233057501801162
1059 ms 221.112.48.242
7 2026-08-26 01:45 639233047089431703
497 ms 221.112.48.242
6 2026-08-26 01:28 639233036754790688
528 ms 221.112.48.242
5 2026-08-26 01:11 639233026412602472
515 ms 221.112.48.242
4 2026-08-26 00:53 639233016064066127
518 ms 221.112.48.242
3 2026-08-26 00:36 639233005922655772
2487 ms 221.112.48.242
2 2026-08-26 00:19 639232995672256907
504 ms 221.112.48.242
1 2026-08-26 00:02 639232985300872416
526 ms 221.112.48.242