History for dns02.headlock.co.jp
Domain: headlock.co.jp • Tracking since 2026-08-04 23:25 UTC
DNS response history for dns02.headlock.co.jp
dns02.headlock.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 55 DNS check records, 55 successful responses, 0 failed responses, and 352 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 dns02.headlock.co.jp.
Records on Selected Date
55
Historical checks stored for this nameserver on selected date
Average Latency
352 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-25 19:23
All timestamps shown in UTC
Latest Resolved IP on Selected Date
221.112.199.147
Most recently resolved hosting IP on selected date
Successful Responses
55
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 dns02.headlock.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 |
|---|---|---|---|---|---|
| 55 | 2026-08-25 19:23 | 639232817798330473 |
|
3 ms | 221.112.199.147 |
| 54 | 2026-08-25 18:29 | 639232785462407552 |
|
267 ms | 221.112.199.147 |
| 53 | 2026-08-25 18:12 | 639232775177487032 |
|
511 ms | 221.112.199.147 |
| 52 | 2026-08-25 17:55 | 639232764991087115 |
|
695 ms | 221.112.199.147 |
| 51 | 2026-08-25 17:38 | 639232754842971478 |
|
10 ms | 221.112.199.147 |
| 50 | 2026-08-25 17:21 | 639232744455159107 |
|
3 ms | 221.112.199.147 |
| 49 | 2026-08-25 17:03 | 639232734145178231 |
|
466 ms | 221.112.199.147 |
| 48 | 2026-08-25 16:46 | 639232723827874402 |
|
266 ms | 221.112.199.147 |
| 47 | 2026-08-25 16:29 | 639232713533011892 |
|
259 ms | 221.112.199.147 |
| 46 | 2026-08-25 16:12 | 639232703065318207 |
|
4 ms | 221.112.199.147 |
| 45 | 2026-08-25 15:54 | 639232692629559470 |
|
296 ms | 221.112.199.147 |
| 44 | 2026-08-25 15:37 | 639232682238836475 |
|
716 ms | 221.112.199.147 |
| 43 | 2026-08-25 15:20 | 639232671787004306 |
|
264 ms | 221.112.199.147 |
| 42 | 2026-08-25 14:25 | 639232638994329666 |
|
522 ms | 221.112.199.147 |
| 41 | 2026-08-25 14:08 | 639232628614783237 |
|
561 ms | 221.112.199.147 |
| 40 | 2026-08-25 13:50 | 639232618360728578 |
|
488 ms | 221.112.199.147 |
| 39 | 2026-08-25 13:33 | 639232608016476376 |
|
765 ms | 221.112.199.147 |
| 38 | 2026-08-25 13:16 | 639232597643611557 |
|
503 ms | 221.112.199.147 |
| 37 | 2026-08-25 12:59 | 639232587225721862 |
|
488 ms | 221.112.199.147 |
| 36 | 2026-08-25 12:41 | 639232576780683689 |
|
32 ms | 221.112.199.147 |
| 35 | 2026-08-25 12:24 | 639232566381512620 |
|
548 ms | 221.112.199.147 |
| 34 | 2026-08-25 12:07 | 639232556111768563 |
|
537 ms | 221.112.199.147 |
| 33 | 2026-08-25 11:49 | 639232545839529039 |
|
365 ms | 221.112.199.147 |
| 32 | 2026-08-25 11:32 | 639232535349285207 |
|
300 ms | 221.112.199.147 |
| 31 | 2026-08-25 11:15 | 639232524938080723 |
|
519 ms | 221.112.199.147 |
| 30 | 2026-08-25 10:21 | 639232492740373468 |
|
258 ms | 221.112.199.147 |
| 29 | 2026-08-25 10:04 | 639232482235303141 |
|
259 ms | 221.112.199.147 |
| 28 | 2026-08-25 09:46 | 639232471861770303 |
|
911 ms | 221.112.199.147 |
| 27 | 2026-08-25 09:29 | 639232461630217327 |
|
487 ms | 221.112.199.147 |
| 26 | 2026-08-25 09:12 | 639232451282965990 |
|
268 ms | 221.112.199.147 |
| 25 | 2026-08-25 08:55 | 639232440814614938 |
|
557 ms | 221.112.199.147 |
| 24 | 2026-08-25 08:37 | 639232430410720425 |
|
278 ms | 221.112.199.147 |
| 23 | 2026-08-25 08:20 | 639232420003096185 |
|
305 ms | 221.112.199.147 |
| 22 | 2026-08-25 08:03 | 639232409467287444 |
|
482 ms | 221.112.199.147 |
| 21 | 2026-08-25 07:45 | 639232399077195997 |
|
489 ms | 221.112.199.147 |
| 20 | 2026-08-25 07:28 | 639232388731528337 |
|
259 ms | 221.112.199.147 |
| 19 | 2026-08-25 07:10 | 639232378288598612 |
|
261 ms | 221.112.199.147 |
| 18 | 2026-08-25 06:17 | 639232346196373643 |
|
4 ms | 221.112.199.147 |
| 17 | 2026-08-25 06:00 | 639232336112370741 |
|
3 ms | 221.112.199.147 |
| 16 | 2026-08-25 05:43 | 639232326146508970 |
|
489 ms | 221.112.199.147 |
| 15 | 2026-08-25 05:26 | 639232316189381720 |
|
465 ms | 221.112.199.147 |
| 14 | 2026-08-25 05:10 | 639232306217998913 |
|
2 ms | 221.112.199.147 |
| 13 | 2026-08-25 04:53 | 639232296255744174 |
|
3 ms | 221.112.199.147 |
| 12 | 2026-08-25 04:37 | 639232286095760789 |
|
298 ms | 221.112.199.147 |
| 11 | 2026-08-25 04:20 | 639232276086186273 |
|
259 ms | 221.112.199.147 |
| 10 | 2026-08-25 04:03 | 639232265900986425 |
|
271 ms | 221.112.199.147 |
| 9 | 2026-08-25 03:46 | 639232255723518075 |
|
476 ms | 221.112.199.147 |
| 8 | 2026-08-25 03:29 | 639232245484452890 |
|
256 ms | 221.112.199.147 |
| 7 | 2026-08-25 03:12 | 639232235157175331 |
|
521 ms | 221.112.199.147 |
| 6 | 2026-08-25 02:18 | 639232203197189095 |
|
759 ms | 221.112.199.147 |
| 5 | 2026-08-25 02:01 | 639232192844564298 |
|
282 ms | 221.112.199.147 |
| 4 | 2026-08-25 01:44 | 639232182496008942 |
|
534 ms | 221.112.199.147 |
| 3 | 2026-08-25 01:27 | 639232172197053132 |
|
270 ms | 221.112.199.147 |
| 2 | 2026-08-25 00:33 | 639232140250307418 |
|
5 ms | 221.112.199.147 |
| 1 | 2026-08-25 00:17 | 639232129927860324 |
|
267 ms | 221.112.199.147 |