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 2026-08-16. For this date, NameServerHistory found 61 DNS check records, 61 successful responses, 0 failed responses, and 578 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
61
Historical checks stored for this nameserver on selected date
Average Latency
578 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-16 23:59
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
61
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 2026-08-16 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 |
|---|---|---|---|---|---|
| 61 | 2026-08-16 23:59 | 639225207490611656 |
|
599 ms | 211.21.22.2 |
| 60 | 2026-08-16 23:43 | 639225198045815385 |
|
3 ms | 211.21.22.2 |
| 59 | 2026-08-16 22:51 | 639225166825544741 |
|
740 ms | 211.21.22.2 |
| 58 | 2026-08-16 22:35 | 639225157549461269 |
|
601 ms | 211.21.22.2 |
| 57 | 2026-08-16 22:19 | 639225147914556308 |
|
757 ms | 211.21.22.2 |
| 56 | 2026-08-16 22:03 | 639225138472322960 |
|
619 ms | 211.21.22.2 |
| 55 | 2026-08-16 21:11 | 639225107211236826 |
|
598 ms | 211.21.22.2 |
| 54 | 2026-08-16 20:55 | 639225097684457510 |
|
598 ms | 211.21.22.2 |
| 53 | 2026-08-16 20:39 | 639225087942913396 |
|
733 ms | 211.21.22.2 |
| 52 | 2026-08-16 20:23 | 639225078238684183 |
|
700 ms | 211.21.22.2 |
| 51 | 2026-08-16 19:31 | 639225046944151094 |
|
598 ms | 211.21.22.2 |
| 50 | 2026-08-16 19:15 | 639225037234857231 |
|
712 ms | 211.21.22.2 |
| 49 | 2026-08-16 18:59 | 639225027423459920 |
|
608 ms | 211.21.22.2 |
| 48 | 2026-08-16 18:42 | 639225017891613027 |
|
592 ms | 211.21.22.2 |
| 47 | 2026-08-16 17:50 | 639224986298183527 |
|
244 ms | 211.21.22.2 |
| 46 | 2026-08-16 17:34 | 639224976567107023 |
|
724 ms | 211.21.22.2 |
| 45 | 2026-08-16 17:18 | 639224966709723386 |
|
304 ms | 211.21.22.2 |
| 44 | 2026-08-16 17:01 | 639224957175756942 |
|
293 ms | 211.21.22.2 |
| 43 | 2026-08-16 16:09 | 639224925782379869 |
|
289 ms | 211.21.22.2 |
| 42 | 2026-08-16 15:53 | 639224916429532459 |
|
633 ms | 211.21.22.2 |
| 41 | 2026-08-16 15:37 | 639224906878325623 |
|
629 ms | 211.21.22.2 |
| 40 | 2026-08-16 15:21 | 639224897258974385 |
|
298 ms | 211.21.22.2 |
| 39 | 2026-08-16 14:30 | 639224866169532828 |
|
306 ms | 211.21.22.2 |
| 38 | 2026-08-16 14:14 | 639224856561831915 |
|
596 ms | 211.21.22.2 |
| 37 | 2026-08-16 13:57 | 639224846830897794 |
|
302 ms | 211.21.22.2 |
| 36 | 2026-08-16 13:41 | 639224836975863283 |
|
621 ms | 211.21.22.2 |
| 35 | 2026-08-16 12:48 | 639224804985340946 |
|
587 ms | 211.21.22.2 |
| 34 | 2026-08-16 12:32 | 639224795567782333 |
|
603 ms | 211.21.22.2 |
| 33 | 2026-08-16 12:16 | 639224785914225250 |
|
825 ms | 211.21.22.2 |
| 32 | 2026-08-16 12:00 | 639224776383854998 |
|
817 ms | 211.21.22.2 |
| 31 | 2026-08-16 11:07 | 639224744252113993 |
|
620 ms | 211.21.22.2 |
| 30 | 2026-08-16 10:51 | 639224734238905542 |
|
727 ms | 211.21.22.2 |
| 29 | 2026-08-16 10:34 | 639224724335031221 |
|
592 ms | 211.21.22.2 |
| 28 | 2026-08-16 10:17 | 639224714475244430 |
|
747 ms | 211.21.22.2 |
| 27 | 2026-08-16 09:22 | 639224681063874153 |
|
768 ms | 211.21.22.2 |
| 26 | 2026-08-16 09:05 | 639224671038956665 |
|
755 ms | 211.21.22.2 |
| 25 | 2026-08-16 08:48 | 639224661079806122 |
|
604 ms | 211.21.22.2 |
| 24 | 2026-08-16 08:32 | 639224651169993038 |
|
822 ms | 211.21.22.2 |
| 23 | 2026-08-16 07:37 | 639224618882283050 |
|
2 ms | 211.21.22.2 |
| 22 | 2026-08-16 07:22 | 639224609519965372 |
|
702 ms | 211.21.22.2 |
| 21 | 2026-08-16 07:06 | 639224599969658888 |
|
592 ms | 211.21.22.2 |
| 20 | 2026-08-16 06:50 | 639224590360343307 |
|
628 ms | 211.21.22.2 |
| 19 | 2026-08-16 05:57 | 639224558901831832 |
|
2272 ms | 211.21.22.2 |
| 18 | 2026-08-16 05:42 | 639224549678210576 |
|
278 ms | 211.21.22.2 |
| 17 | 2026-08-16 05:26 | 639224540433420642 |
|
709 ms | 211.21.22.2 |
| 16 | 2026-08-16 05:11 | 639224531046032443 |
|
610 ms | 211.21.22.2 |
| 15 | 2026-08-16 04:18 | 639224499638024410 |
|
604 ms | 211.21.22.2 |
| 14 | 2026-08-16 04:03 | 639224490358783451 |
|
613 ms | 211.21.22.2 |
| 13 | 2026-08-16 03:48 | 639224481111410545 |
|
606 ms | 211.21.22.2 |
| 12 | 2026-08-16 03:32 | 639224471809153772 |
|
608 ms | 211.21.22.2 |
| 11 | 2026-08-16 02:39 | 639224440124457324 |
|
243 ms | 211.21.22.2 |
| 10 | 2026-08-16 02:24 | 639224430921105721 |
|
998 ms | 211.21.22.2 |
| 9 | 2026-08-16 02:09 | 639224421455433103 |
|
617 ms | 211.21.22.2 |
| 8 | 2026-08-16 01:53 | 639224412089740331 |
|
325 ms | 211.21.22.2 |
| 7 | 2026-08-16 01:37 | 639224403168392868 |
|
614 ms | 211.21.22.2 |
| 6 | 2026-08-16 01:22 | 639224393856251387 |
|
603 ms | 211.21.22.2 |
| 5 | 2026-08-16 01:07 | 639224384677141438 |
|
3 ms | 211.21.22.2 |
| 4 | 2026-08-16 00:51 | 639224375597986398 |
|
599 ms | 211.21.22.2 |
| 3 | 2026-08-16 00:36 | 639224366430296466 |
|
2 ms | 211.21.22.2 |
| 2 | 2026-08-16 00:21 | 639224357218176789 |
|
591 ms | 211.21.22.2 |
| 1 | 2026-08-16 00:05 | 639224347685767174 |
|
301 ms | 211.21.22.2 |