History for ns2.sfo.jp
Domain: sfo.jp • Tracking since 2026-08-04 23:25 UTC
DNS response history for ns2.sfo.jp
ns2.sfo.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 51 DNS check records, 51 successful responses, 0 failed responses, and 443 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.sfo.jp.
Records on Selected Date
51
Historical checks stored for this nameserver on selected date
Average Latency
443 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-25 17:37
All timestamps shown in UTC
Latest Resolved IP on Selected Date
153.121.71.31
Most recently resolved hosting IP on selected date
Successful Responses
51
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.sfo.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 |
|---|---|---|---|---|---|
| 51 | 2026-08-25 17:37 | 639232754842971478 |
|
9 ms | 153.121.71.31 |
| 50 | 2026-08-25 17:20 | 639232744455159107 |
|
493 ms | 153.121.71.31 |
| 49 | 2026-08-25 17:03 | 639232734145178231 |
|
2008 ms | 153.121.71.31 |
| 48 | 2026-08-25 16:46 | 639232723827874402 |
|
512 ms | 153.121.71.31 |
| 47 | 2026-08-25 16:29 | 639232713533011892 |
|
518 ms | 153.121.71.31 |
| 46 | 2026-08-25 16:11 | 639232703065318207 |
|
501 ms | 153.121.71.31 |
| 45 | 2026-08-25 15:54 | 639232692629559470 |
|
8 ms | 153.121.71.31 |
| 44 | 2026-08-25 15:37 | 639232682238836475 |
|
496 ms | 153.121.71.31 |
| 43 | 2026-08-25 15:19 | 639232671787004306 |
|
506 ms | 153.121.71.31 |
| 42 | 2026-08-25 14:25 | 639232638994329666 |
|
24 ms | 153.121.71.31 |
| 41 | 2026-08-25 14:07 | 639232628614783237 |
|
498 ms | 153.121.71.31 |
| 40 | 2026-08-25 13:50 | 639232618360728578 |
|
501 ms | 153.121.71.31 |
| 39 | 2026-08-25 13:33 | 639232608016476376 |
|
521 ms | 153.121.71.31 |
| 38 | 2026-08-25 13:16 | 639232597643611557 |
|
519 ms | 153.121.71.31 |
| 37 | 2026-08-25 12:58 | 639232587225721862 |
|
515 ms | 153.121.71.31 |
| 36 | 2026-08-25 12:41 | 639232576780683689 |
|
507 ms | 153.121.71.31 |
| 35 | 2026-08-25 12:24 | 639232566381512620 |
|
492 ms | 153.121.71.31 |
| 34 | 2026-08-25 12:06 | 639232556111768563 |
|
516 ms | 153.121.71.31 |
| 33 | 2026-08-25 11:49 | 639232545839529039 |
|
539 ms | 153.121.71.31 |
| 32 | 2026-08-25 11:32 | 639232535349285207 |
|
7 ms | 153.121.71.31 |
| 31 | 2026-08-25 11:14 | 639232524938080723 |
|
498 ms | 153.121.71.31 |
| 30 | 2026-08-25 10:21 | 639232492740373468 |
|
552 ms | 153.121.71.31 |
| 29 | 2026-08-25 10:04 | 639232482235303141 |
|
505 ms | 153.121.71.31 |
| 28 | 2026-08-25 09:46 | 639232471861770303 |
|
275 ms | 153.121.71.31 |
| 27 | 2026-08-25 09:29 | 639232461630217327 |
|
504 ms | 153.121.71.31 |
| 26 | 2026-08-25 09:12 | 639232451282965990 |
|
281 ms | 153.121.71.31 |
| 25 | 2026-08-25 08:54 | 639232440814614938 |
|
505 ms | 153.121.71.31 |
| 24 | 2026-08-25 08:37 | 639232430410720425 |
|
538 ms | 153.121.71.31 |
| 23 | 2026-08-25 08:20 | 639232420003096185 |
|
489 ms | 153.121.71.31 |
| 22 | 2026-08-25 08:02 | 639232409467287444 |
|
565 ms | 153.121.71.31 |
| 21 | 2026-08-25 07:45 | 639232399077195997 |
|
505 ms | 153.121.71.31 |
| 20 | 2026-08-25 07:27 | 639232388731528337 |
|
553 ms | 153.121.71.31 |
| 19 | 2026-08-25 07:10 | 639232378288598612 |
|
547 ms | 153.121.71.31 |
| 18 | 2026-08-25 06:16 | 639232346196373643 |
|
5 ms | 153.121.71.31 |
| 17 | 2026-08-25 05:59 | 639232336112370741 |
|
548 ms | 153.121.71.31 |
| 16 | 2026-08-25 05:43 | 639232326146508970 |
|
340 ms | 153.121.71.31 |
| 15 | 2026-08-25 05:26 | 639232316189381720 |
|
490 ms | 153.121.71.31 |
| 14 | 2026-08-25 05:10 | 639232306217998913 |
|
542 ms | 153.121.71.31 |
| 13 | 2026-08-25 04:53 | 639232296255744174 |
|
514 ms | 153.121.71.31 |
| 12 | 2026-08-25 04:36 | 639232286095760789 |
|
529 ms | 153.121.71.31 |
| 11 | 2026-08-25 04:19 | 639232276086186273 |
|
3 ms | 153.121.71.31 |
| 10 | 2026-08-25 04:03 | 639232265900986425 |
|
534 ms | 153.121.71.31 |
| 9 | 2026-08-25 03:46 | 639232255723518075 |
|
503 ms | 153.121.71.31 |
| 8 | 2026-08-25 03:29 | 639232245484452890 |
|
3 ms | 153.121.71.31 |
| 7 | 2026-08-25 03:11 | 639232235157175331 |
|
3 ms | 153.121.71.31 |
| 6 | 2026-08-25 02:18 | 639232203197189095 |
|
479 ms | 153.121.71.31 |
| 5 | 2026-08-25 02:01 | 639232192844564298 |
|
473 ms | 153.121.71.31 |
| 4 | 2026-08-25 01:44 | 639232182496008942 |
|
493 ms | 153.121.71.31 |
| 3 | 2026-08-25 01:26 | 639232172197053132 |
|
532 ms | 153.121.71.31 |
| 2 | 2026-08-25 00:33 | 639232140250307418 |
|
558 ms | 153.121.71.31 |
| 1 | 2026-08-25 00:16 | 639232129927860324 |
|
33 ms | 153.121.71.31 |