History for ns2.cac.edu.tw
Domain: cac.edu.tw • Tracking since 2026-08-04 23:25 UTC
DNS response history for ns2.cac.edu.tw
ns2.cac.edu.tw 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 47 DNS check records, 47 successful responses, 0 failed responses, and 1294 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.cac.edu.tw.
Records on Selected Date
47
Historical checks stored for this nameserver on selected date
Average Latency
1294 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-25 16:14
All timestamps shown in UTC
Latest Resolved IP on Selected Date
140.123.254.15
Most recently resolved hosting IP on selected date
Successful Responses
47
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.cac.edu.tw
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 |
|---|---|---|---|---|---|
| 47 | 2026-08-25 16:14 | 639232703065318207 |
|
1178 ms | 140.123.254.15 |
| 46 | 2026-08-25 15:57 | 639232692629559470 |
|
859 ms | 140.123.254.15 |
| 45 | 2026-08-25 15:39 | 639232682238836475 |
|
1257 ms | 140.123.254.15 |
| 44 | 2026-08-25 15:22 | 639232671787004306 |
|
2745 ms | 140.123.254.15 |
| 43 | 2026-08-25 14:27 | 639232638994329666 |
|
825 ms | 140.123.254.15 |
| 42 | 2026-08-25 14:10 | 639232628614783237 |
|
2445 ms | 140.123.254.15 |
| 41 | 2026-08-25 13:52 | 639232618360728578 |
|
1503 ms | 140.123.254.15 |
| 40 | 2026-08-25 13:35 | 639232608016476376 |
|
1372 ms | 140.123.254.15 |
| 39 | 2026-08-25 13:18 | 639232597643611557 |
|
4 ms | 140.123.254.15 |
| 38 | 2026-08-25 13:01 | 639232587225721862 |
|
870 ms | 140.123.254.15 |
| 37 | 2026-08-25 12:43 | 639232576780683689 |
|
858 ms | 140.123.254.15 |
| 36 | 2026-08-25 12:26 | 639232566381512620 |
|
2475 ms | 140.123.254.15 |
| 35 | 2026-08-25 12:09 | 639232556111768563 |
|
795 ms | 140.123.254.15 |
| 34 | 2026-08-25 11:52 | 639232545839529039 |
|
788 ms | 140.123.254.15 |
| 33 | 2026-08-25 11:34 | 639232535349285207 |
|
811 ms | 140.123.254.15 |
| 32 | 2026-08-25 11:17 | 639232524938080723 |
|
801 ms | 140.123.254.15 |
| 31 | 2026-08-25 10:23 | 639232492740373468 |
|
1303 ms | 140.123.254.15 |
| 30 | 2026-08-25 10:06 | 639232482235303141 |
|
2250 ms | 140.123.254.15 |
| 29 | 2026-08-25 09:48 | 639232471861770303 |
|
2465 ms | 140.123.254.15 |
| 28 | 2026-08-25 09:31 | 639232461630217327 |
|
823 ms | 140.123.254.15 |
| 27 | 2026-08-25 09:14 | 639232451282965990 |
|
775 ms | 140.123.254.15 |
| 26 | 2026-08-25 08:57 | 639232440814614938 |
|
2545 ms | 140.123.254.15 |
| 25 | 2026-08-25 08:39 | 639232430410720425 |
|
1031 ms | 140.123.254.15 |
| 24 | 2026-08-25 08:22 | 639232420003096185 |
|
815 ms | 140.123.254.15 |
| 23 | 2026-08-25 08:05 | 639232409467287444 |
|
795 ms | 140.123.254.15 |
| 22 | 2026-08-25 07:47 | 639232399077195997 |
|
1201 ms | 140.123.254.15 |
| 21 | 2026-08-25 07:30 | 639232388731528337 |
|
830 ms | 140.123.254.15 |
| 20 | 2026-08-25 07:13 | 639232378288598612 |
|
823 ms | 140.123.254.15 |
| 19 | 2026-08-25 06:19 | 639232346196373643 |
|
4541 ms | 140.123.254.15 |
| 18 | 2026-08-25 06:02 | 639232336112370741 |
|
2 ms | 140.123.254.15 |
| 17 | 2026-08-25 05:45 | 639232326146508970 |
|
819 ms | 140.123.254.15 |
| 16 | 2026-08-25 05:28 | 639232316189381720 |
|
838 ms | 140.123.254.15 |
| 15 | 2026-08-25 05:12 | 639232306217998913 |
|
830 ms | 140.123.254.15 |
| 14 | 2026-08-25 04:55 | 639232296255744174 |
|
1557 ms | 140.123.254.15 |
| 13 | 2026-08-25 04:38 | 639232286095760789 |
|
2545 ms | 140.123.254.15 |
| 12 | 2026-08-25 04:22 | 639232276086186273 |
|
1598 ms | 140.123.254.15 |
| 11 | 2026-08-25 04:05 | 639232265900986425 |
|
837 ms | 140.123.254.15 |
| 10 | 2026-08-25 03:48 | 639232255723518075 |
|
1251 ms | 140.123.254.15 |
| 9 | 2026-08-25 03:31 | 639232245484452890 |
|
1240 ms | 140.123.254.15 |
| 8 | 2026-08-25 03:14 | 639232235157175331 |
|
1290 ms | 140.123.254.15 |
| 7 | 2026-08-25 02:20 | 639232203197189095 |
|
4003 ms | 140.123.254.15 |
| 6 | 2026-08-25 02:03 | 639232192844564298 |
|
2 ms | 140.123.254.15 |
| 5 | 2026-08-25 01:46 | 639232182496008942 |
|
2 ms | 140.123.254.15 |
| 4 | 2026-08-25 01:29 | 639232172197053132 |
|
1717 ms | 140.123.254.15 |
| 3 | 2026-08-25 00:35 | 639232140250307418 |
|
852 ms | 140.123.254.15 |
| 2 | 2026-08-25 00:19 | 639232129927860324 |
|
862 ms | 140.123.254.15 |
| 1 | 2026-08-25 00:01 | 639232119551972438 |
|
812 ms | 140.123.254.15 |