History for ns1.cotron.com.tw
Domain: cotron.com.tw • Tracking since 2026-08-04 23:25 UTC
DNS response history for ns1.cotron.com.tw
ns1.cotron.com.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 2026-08-12. For this date, NameServerHistory found 62 DNS check records, 62 successful responses, 0 failed responses, and 494 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 ns1.cotron.com.tw.
Records on Selected Date
62
Historical checks stored for this nameserver on selected date
Average Latency
494 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-12 23:46
All timestamps shown in UTC
Latest Resolved IP on Selected Date
211.21.22.2
Most recently resolved hosting IP on selected date
Successful Responses
62
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 ns1.cotron.com.tw
Showing DNS history for 2026-08-12 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 |
|---|---|---|---|---|---|
| 62 | 2026-08-12 23:46 | 639221744107644868 |
|
592 ms | 211.21.22.2 |
| 61 | 2026-08-12 23:31 | 639221735030187244 |
|
750 ms | 211.21.22.2 |
| 60 | 2026-08-12 23:15 | 639221725815508109 |
|
2 ms | 211.21.22.2 |
| 59 | 2026-08-12 22:24 | 639221694790955973 |
|
606 ms | 211.21.22.2 |
| 58 | 2026-08-12 22:08 | 639221685562451720 |
|
597 ms | 211.21.22.2 |
| 57 | 2026-08-12 21:53 | 639221676023655289 |
|
605 ms | 211.21.22.2 |
| 56 | 2026-08-12 21:37 | 639221666449119409 |
|
312 ms | 211.21.22.2 |
| 55 | 2026-08-12 20:45 | 639221635456432556 |
|
2 ms | 211.21.22.2 |
| 54 | 2026-08-12 20:30 | 639221626313054202 |
|
2 ms | 211.21.22.2 |
| 53 | 2026-08-12 20:14 | 639221617091958857 |
|
597 ms | 211.21.22.2 |
| 52 | 2026-08-12 19:59 | 639221607786737151 |
|
601 ms | 211.21.22.2 |
| 51 | 2026-08-12 19:07 | 639221576664330059 |
|
9 ms | 211.21.22.2 |
| 50 | 2026-08-12 18:52 | 639221567514216674 |
|
646 ms | 211.21.22.2 |
| 49 | 2026-08-12 18:36 | 639221558399762524 |
|
592 ms | 211.21.22.2 |
| 48 | 2026-08-12 18:21 | 639221549052016282 |
|
649 ms | 211.21.22.2 |
| 47 | 2026-08-12 17:29 | 639221517673834934 |
|
5 ms | 211.21.22.2 |
| 46 | 2026-08-12 17:13 | 639221508282311633 |
|
656 ms | 211.21.22.2 |
| 45 | 2026-08-12 16:57 | 639221498786324983 |
|
778 ms | 211.21.22.2 |
| 44 | 2026-08-12 16:41 | 639221489157589737 |
|
4 ms | 211.21.22.2 |
| 43 | 2026-08-12 15:49 | 639221457655914645 |
|
286 ms | 211.21.22.2 |
| 42 | 2026-08-12 15:33 | 639221448164090526 |
|
288 ms | 211.21.22.2 |
| 41 | 2026-08-12 15:17 | 639221438725783630 |
|
605 ms | 211.21.22.2 |
| 40 | 2026-08-12 15:01 | 639221429178071087 |
|
729 ms | 211.21.22.2 |
| 39 | 2026-08-12 14:09 | 639221397761278719 |
|
287 ms | 211.21.22.2 |
| 38 | 2026-08-12 13:53 | 639221388200567278 |
|
288 ms | 211.21.22.2 |
| 37 | 2026-08-12 13:37 | 639221378483570949 |
|
719 ms | 211.21.22.2 |
| 36 | 2026-08-12 13:21 | 639221368872360139 |
|
279 ms | 211.21.22.2 |
| 35 | 2026-08-12 12:28 | 639221337226647415 |
|
841 ms | 211.21.22.2 |
| 34 | 2026-08-12 12:12 | 639221327924087446 |
|
1108 ms | 211.21.22.2 |
| 33 | 2026-08-12 11:57 | 639221318096976375 |
|
842 ms | 211.21.22.2 |
| 32 | 2026-08-12 11:40 | 639221308343145274 |
|
624 ms | 211.21.22.2 |
| 31 | 2026-08-12 10:48 | 639221277089610470 |
|
607 ms | 211.21.22.2 |
| 30 | 2026-08-12 10:32 | 639221267628136359 |
|
605 ms | 211.21.22.2 |
| 29 | 2026-08-12 10:16 | 639221257907569952 |
|
762 ms | 211.21.22.2 |
| 28 | 2026-08-12 10:00 | 639221248402420965 |
|
619 ms | 211.21.22.2 |
| 27 | 2026-08-12 09:07 | 639221216797540533 |
|
595 ms | 211.21.22.2 |
| 26 | 2026-08-12 08:52 | 639221207385792352 |
|
589 ms | 211.21.22.2 |
| 25 | 2026-08-12 08:36 | 639221198078534844 |
|
287 ms | 211.21.22.2 |
| 24 | 2026-08-12 08:20 | 639221188677585577 |
|
285 ms | 211.21.22.2 |
| 23 | 2026-08-12 07:28 | 639221157276484143 |
|
611 ms | 211.21.22.2 |
| 22 | 2026-08-12 07:12 | 639221147876262183 |
|
610 ms | 211.21.22.2 |
| 21 | 2026-08-12 06:57 | 639221138388812469 |
|
648 ms | 211.21.22.2 |
| 20 | 2026-08-12 06:41 | 639221128987381118 |
|
602 ms | 211.21.22.2 |
| 19 | 2026-08-12 05:49 | 639221097816416095 |
|
610 ms | 211.21.22.2 |
| 18 | 2026-08-12 05:33 | 639221088508065616 |
|
815 ms | 211.21.22.2 |
| 17 | 2026-08-12 05:18 | 639221079092308503 |
|
611 ms | 211.21.22.2 |
| 16 | 2026-08-12 05:02 | 639221069595873597 |
|
617 ms | 211.21.22.2 |
| 15 | 2026-08-12 04:10 | 639221038601577496 |
|
621 ms | 211.21.22.2 |
| 14 | 2026-08-12 03:55 | 639221029533901299 |
|
269 ms | 211.21.22.2 |
| 13 | 2026-08-12 03:39 | 639221020333828965 |
|
601 ms | 211.21.22.2 |
| 12 | 2026-08-12 03:24 | 639221011110510484 |
|
588 ms | 211.21.22.2 |
| 11 | 2026-08-12 02:32 | 639220979815209769 |
|
578 ms | 211.21.22.2 |
| 10 | 2026-08-12 02:17 | 639220970971410921 |
|
3 ms | 211.21.22.2 |
| 9 | 2026-08-12 02:02 | 639220961848982361 |
|
2 ms | 211.21.22.2 |
| 8 | 2026-08-12 01:47 | 639220952784591501 |
|
2 ms | 211.21.22.2 |
| 7 | 2026-08-12 01:32 | 639220943893596731 |
|
324 ms | 211.21.22.2 |
| 6 | 2026-08-12 01:17 | 639220934954704520 |
|
607 ms | 211.21.22.2 |
| 5 | 2026-08-12 01:02 | 639220925792457751 |
|
626 ms | 211.21.22.2 |
| 4 | 2026-08-12 00:47 | 639220916610063538 |
|
324 ms | 211.21.22.2 |
| 3 | 2026-08-12 00:31 | 639220907229361754 |
|
324 ms | 211.21.22.2 |
| 2 | 2026-08-12 00:16 | 639220897896762127 |
|
753 ms | 211.21.22.2 |
| 1 | 2026-08-12 00:00 | 639220888396333845 |
|
629 ms | 211.21.22.2 |