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 2026-08-13. For this date, NameServerHistory found 72 DNS check records, 72 successful responses, 0 failed responses, and 536 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
72
Historical checks stored for this nameserver on selected date
Average Latency
536 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-13 23:47
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
72
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 2026-08-13 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 |
|---|---|---|---|---|---|
| 72 | 2026-08-13 23:47 | 639222608688333012 |
|
847 ms | 211.21.22.2 |
| 71 | 2026-08-13 23:30 | 639222598741756356 |
|
606 ms | 211.21.22.2 |
| 70 | 2026-08-13 23:14 | 639222588615244093 |
|
610 ms | 211.21.22.2 |
| 69 | 2026-08-13 22:20 | 639222556495289724 |
|
3 ms | 211.21.22.2 |
| 68 | 2026-08-13 22:03 | 639222546477917698 |
|
613 ms | 211.21.22.2 |
| 67 | 2026-08-13 21:46 | 639222536257653790 |
|
765 ms | 211.21.22.2 |
| 66 | 2026-08-13 21:29 | 639222525833084485 |
|
595 ms | 211.21.22.2 |
| 65 | 2026-08-13 21:12 | 639222515446085004 |
|
598 ms | 211.21.22.2 |
| 64 | 2026-08-13 20:54 | 639222505166766781 |
|
642 ms | 211.21.22.2 |
| 63 | 2026-08-13 20:37 | 639222494930541001 |
|
595 ms | 211.21.22.2 |
| 62 | 2026-08-13 20:20 | 639222484469216890 |
|
724 ms | 211.21.22.2 |
| 61 | 2026-08-13 20:03 | 639222474270039940 |
|
612 ms | 211.21.22.2 |
| 60 | 2026-08-13 19:46 | 639222464005587385 |
|
611 ms | 211.21.22.2 |
| 59 | 2026-08-13 19:28 | 639222453485975041 |
|
626 ms | 211.21.22.2 |
| 58 | 2026-08-13 19:11 | 639222442984828770 |
|
728 ms | 211.21.22.2 |
| 57 | 2026-08-13 18:18 | 639222410191353397 |
|
616 ms | 211.21.22.2 |
| 56 | 2026-08-13 18:00 | 639222399952628376 |
|
4 ms | 211.21.22.2 |
| 55 | 2026-08-13 17:43 | 639222389608608647 |
|
745 ms | 211.21.22.2 |
| 54 | 2026-08-13 17:26 | 639222379604012481 |
|
765 ms | 211.21.22.2 |
| 53 | 2026-08-13 17:09 | 639222369372672858 |
|
1121 ms | 211.21.22.2 |
| 52 | 2026-08-13 16:52 | 639222359096909298 |
|
288 ms | 211.21.22.2 |
| 51 | 2026-08-13 16:35 | 639222348814301655 |
|
286 ms | 211.21.22.2 |
| 50 | 2026-08-13 16:18 | 639222338608331104 |
|
3 ms | 211.21.22.2 |
| 49 | 2026-08-13 16:01 | 639222328204609760 |
|
588 ms | 211.21.22.2 |
| 48 | 2026-08-13 15:44 | 639222317859759909 |
|
598 ms | 211.21.22.2 |
| 47 | 2026-08-13 15:26 | 639222307560137918 |
|
848 ms | 211.21.22.2 |
| 46 | 2026-08-13 15:09 | 639222297274357149 |
|
613 ms | 211.21.22.2 |
| 45 | 2026-08-13 14:15 | 639222265004477827 |
|
610 ms | 211.21.22.2 |
| 44 | 2026-08-13 13:59 | 639222255176583683 |
|
620 ms | 211.21.22.2 |
| 43 | 2026-08-13 13:42 | 639222245340146131 |
|
933 ms | 211.21.22.2 |
| 42 | 2026-08-13 13:26 | 639222235662219956 |
|
730 ms | 211.21.22.2 |
| 41 | 2026-08-13 13:10 | 639222225817223284 |
|
708 ms | 211.21.22.2 |
| 40 | 2026-08-13 12:53 | 639222216341869648 |
|
601 ms | 211.21.22.2 |
| 39 | 2026-08-13 12:37 | 639222206848442189 |
|
5 ms | 211.21.22.2 |
| 38 | 2026-08-13 12:22 | 639222197538963225 |
|
623 ms | 211.21.22.2 |
| 37 | 2026-08-13 12:06 | 639222188113685569 |
|
625 ms | 211.21.22.2 |
| 36 | 2026-08-13 11:50 | 639222178880138458 |
|
726 ms | 211.21.22.2 |
| 35 | 2026-08-13 11:35 | 639222169343013317 |
|
285 ms | 211.21.22.2 |
| 34 | 2026-08-13 11:19 | 639222159910600596 |
|
289 ms | 211.21.22.2 |
| 33 | 2026-08-13 10:27 | 639222128676274866 |
|
247 ms | 211.21.22.2 |
| 32 | 2026-08-13 10:11 | 639222119169781983 |
|
605 ms | 211.21.22.2 |
| 31 | 2026-08-13 09:55 | 639222109996148889 |
|
756 ms | 211.21.22.2 |
| 30 | 2026-08-13 09:40 | 639222100791323799 |
|
716 ms | 211.21.22.2 |
| 29 | 2026-08-13 09:25 | 639222091647893142 |
|
743 ms | 211.21.22.2 |
| 28 | 2026-08-13 09:10 | 639222082524717649 |
|
603 ms | 211.21.22.2 |
| 27 | 2026-08-13 08:55 | 639222073378630456 |
|
722 ms | 211.21.22.2 |
| 26 | 2026-08-13 08:40 | 639222064537306701 |
|
737 ms | 211.21.22.2 |
| 25 | 2026-08-13 08:25 | 639222055409471864 |
|
589 ms | 211.21.22.2 |
| 24 | 2026-08-13 08:10 | 639222046117152411 |
|
604 ms | 211.21.22.2 |
| 23 | 2026-08-13 07:54 | 639222036915107067 |
|
604 ms | 211.21.22.2 |
| 22 | 2026-08-13 07:39 | 639222027654889141 |
|
590 ms | 211.21.22.2 |
| 21 | 2026-08-13 06:47 | 639221996824612035 |
|
9 ms | 211.21.22.2 |
| 20 | 2026-08-13 06:32 | 639221987863418113 |
|
336 ms | 211.21.22.2 |
| 19 | 2026-08-13 06:17 | 639221979006823112 |
|
602 ms | 211.21.22.2 |
| 18 | 2026-08-13 06:02 | 639221970068466615 |
|
731 ms | 211.21.22.2 |
| 17 | 2026-08-13 05:47 | 639221961001585139 |
|
614 ms | 211.21.22.2 |
| 16 | 2026-08-13 05:32 | 639221952104046397 |
|
249 ms | 211.21.22.2 |
| 15 | 2026-08-13 05:18 | 639221943247694484 |
|
693 ms | 211.21.22.2 |
| 14 | 2026-08-13 05:03 | 639221934603388241 |
|
3 ms | 211.21.22.2 |
| 13 | 2026-08-13 04:48 | 639221925729273358 |
|
3 ms | 211.21.22.2 |
| 12 | 2026-08-13 04:33 | 639221916777813401 |
|
3 ms | 211.21.22.2 |
| 11 | 2026-08-13 04:18 | 639221907816913910 |
|
600 ms | 211.21.22.2 |
| 10 | 2026-08-13 04:03 | 639221898639694322 |
|
600 ms | 211.21.22.2 |
| 9 | 2026-08-13 03:13 | 639221868257567489 |
|
605 ms | 211.21.22.2 |
| 8 | 2026-08-13 02:58 | 639221859270235608 |
|
3 ms | 211.21.22.2 |
| 7 | 2026-08-13 02:43 | 639221850184464515 |
|
619 ms | 211.21.22.2 |
| 6 | 2026-08-13 02:27 | 639221841141973425 |
|
610 ms | 211.21.22.2 |
| 5 | 2026-08-13 01:36 | 639221810548753083 |
|
610 ms | 211.21.22.2 |
| 4 | 2026-08-13 01:22 | 639221801656796262 |
|
3 ms | 211.21.22.2 |
| 3 | 2026-08-13 01:07 | 639221792658715334 |
|
596 ms | 211.21.22.2 |
| 2 | 2026-08-13 00:51 | 639221783571379176 |
|
592 ms | 211.21.22.2 |
| 1 | 2026-08-13 00:00 | 639221753022017039 |
|
554 ms | 211.21.22.2 |