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 2026-08-21. For this date, NameServerHistory found 73 DNS check records, 73 successful responses, 0 failed responses, and 428 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
73
Historical checks stored for this nameserver on selected date
Average Latency
428 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-21 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
73
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 2026-08-21 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 |
|---|---|---|---|---|---|
| 73 | 2026-08-21 23:59 | 639229527598660841 |
|
2 ms | 211.21.22.2 |
| 72 | 2026-08-21 23:43 | 639229517954323214 |
|
244 ms | 211.21.22.2 |
| 71 | 2026-08-21 23:27 | 639229508269999021 |
|
3 ms | 211.21.22.2 |
| 70 | 2026-08-21 23:11 | 639229498559060171 |
|
593 ms | 211.21.22.2 |
| 69 | 2026-08-21 22:54 | 639229488519347586 |
|
618 ms | 211.21.22.2 |
| 68 | 2026-08-21 22:01 | 639229456606578934 |
|
614 ms | 211.21.22.2 |
| 67 | 2026-08-21 21:45 | 639229446985772499 |
|
613 ms | 211.21.22.2 |
| 66 | 2026-08-21 21:29 | 639229437367313098 |
|
636 ms | 211.21.22.2 |
| 65 | 2026-08-21 21:13 | 639229427923950391 |
|
2 ms | 211.21.22.2 |
| 64 | 2026-08-21 20:57 | 639229418168588854 |
|
620 ms | 211.21.22.2 |
| 63 | 2026-08-21 20:41 | 639229408345678334 |
|
619 ms | 211.21.22.2 |
| 62 | 2026-08-21 20:24 | 639229398616354648 |
|
2822 ms | 211.21.22.2 |
| 61 | 2026-08-21 20:08 | 639229388634592323 |
|
2 ms | 211.21.22.2 |
| 60 | 2026-08-21 19:51 | 639229378792837692 |
|
3 ms | 211.21.22.2 |
| 59 | 2026-08-21 19:35 | 639229369154682311 |
|
232 ms | 211.21.22.2 |
| 58 | 2026-08-21 19:19 | 639229359248017926 |
|
631 ms | 211.21.22.2 |
| 57 | 2026-08-21 19:02 | 639229349124294642 |
|
829 ms | 211.21.22.2 |
| 56 | 2026-08-21 18:10 | 639229317791715692 |
|
250 ms | 211.21.22.2 |
| 55 | 2026-08-21 17:53 | 639229308115194575 |
|
4 ms | 211.21.22.2 |
| 54 | 2026-08-21 17:37 | 639229298320320558 |
|
666 ms | 211.21.22.2 |
| 53 | 2026-08-21 17:21 | 639229288674863221 |
|
2 ms | 211.21.22.2 |
| 52 | 2026-08-21 17:05 | 639229278983677079 |
|
3 ms | 211.21.22.2 |
| 51 | 2026-08-21 16:49 | 639229269405517175 |
|
779 ms | 211.21.22.2 |
| 50 | 2026-08-21 16:33 | 639229259594798244 |
|
610 ms | 211.21.22.2 |
| 49 | 2026-08-21 16:16 | 639229249736681188 |
|
4 ms | 211.21.22.2 |
| 48 | 2026-08-21 16:00 | 639229239699417787 |
|
246 ms | 211.21.22.2 |
| 47 | 2026-08-21 15:43 | 639229229621964033 |
|
608 ms | 211.21.22.2 |
| 46 | 2026-08-21 15:26 | 639229219567270965 |
|
596 ms | 211.21.22.2 |
| 45 | 2026-08-21 15:09 | 639229209406666856 |
|
3 ms | 211.21.22.2 |
| 44 | 2026-08-21 14:16 | 639229177815876178 |
|
620 ms | 211.21.22.2 |
| 43 | 2026-08-21 14:00 | 639229168243572685 |
|
754 ms | 211.21.22.2 |
| 42 | 2026-08-21 13:44 | 639229158599856475 |
|
815 ms | 211.21.22.2 |
| 41 | 2026-08-21 13:28 | 639229148998940902 |
|
789 ms | 211.21.22.2 |
| 40 | 2026-08-21 13:12 | 639229139276923594 |
|
5 ms | 211.21.22.2 |
| 39 | 2026-08-21 12:56 | 639229129709912394 |
|
4 ms | 211.21.22.2 |
| 38 | 2026-08-21 12:40 | 639229119801488500 |
|
3 ms | 211.21.22.2 |
| 37 | 2026-08-21 12:23 | 639229110135262458 |
|
791 ms | 211.21.22.2 |
| 36 | 2026-08-21 12:07 | 639229100336051392 |
|
241 ms | 211.21.22.2 |
| 35 | 2026-08-21 11:51 | 639229090641415626 |
|
595 ms | 211.21.22.2 |
| 34 | 2026-08-21 11:35 | 639229080702683947 |
|
4 ms | 211.21.22.2 |
| 33 | 2026-08-21 11:18 | 639229070601456699 |
|
609 ms | 211.21.22.2 |
| 32 | 2026-08-21 10:25 | 639229038947447232 |
|
626 ms | 211.21.22.2 |
| 31 | 2026-08-21 10:09 | 639229029268708773 |
|
4 ms | 211.21.22.2 |
| 30 | 2026-08-21 09:53 | 639229019647910603 |
|
603 ms | 211.21.22.2 |
| 29 | 2026-08-21 09:37 | 639229009983843738 |
|
760 ms | 211.21.22.2 |
| 28 | 2026-08-21 09:20 | 639229000203331882 |
|
637 ms | 211.21.22.2 |
| 27 | 2026-08-21 09:04 | 639228990302335999 |
|
5 ms | 211.21.22.2 |
| 26 | 2026-08-21 08:48 | 639228980567740722 |
|
7 ms | 211.21.22.2 |
| 25 | 2026-08-21 08:31 | 639228970762445174 |
|
593 ms | 211.21.22.2 |
| 24 | 2026-08-21 08:15 | 639228961065054445 |
|
708 ms | 211.21.22.2 |
| 23 | 2026-08-21 07:59 | 639228951224649885 |
|
3 ms | 211.21.22.2 |
| 22 | 2026-08-21 07:42 | 639228941303864592 |
|
620 ms | 211.21.22.2 |
| 21 | 2026-08-21 07:26 | 639228931191328583 |
|
619 ms | 211.21.22.2 |
| 20 | 2026-08-21 06:33 | 639228899518173317 |
|
2 ms | 211.21.22.2 |
| 19 | 2026-08-21 06:16 | 639228889785027669 |
|
312 ms | 211.21.22.2 |
| 18 | 2026-08-21 06:00 | 639228880106330161 |
|
637 ms | 211.21.22.2 |
| 17 | 2026-08-21 05:44 | 639228870316184091 |
|
296 ms | 211.21.22.2 |
| 16 | 2026-08-21 05:28 | 639228860695366512 |
|
4 ms | 211.21.22.2 |
| 15 | 2026-08-21 05:12 | 639228851027209500 |
|
617 ms | 211.21.22.2 |
| 14 | 2026-08-21 04:56 | 639228841479265462 |
|
713 ms | 211.21.22.2 |
| 13 | 2026-08-21 04:40 | 639228831752962260 |
|
306 ms | 211.21.22.2 |
| 12 | 2026-08-21 04:23 | 639228821953295483 |
|
3 ms | 211.21.22.2 |
| 11 | 2026-08-21 04:07 | 639228812227429953 |
|
606 ms | 211.21.22.2 |
| 10 | 2026-08-21 03:51 | 639228802476107538 |
|
241 ms | 211.21.22.2 |
| 9 | 2026-08-21 03:34 | 639228792525492032 |
|
614 ms | 211.21.22.2 |
| 8 | 2026-08-21 02:42 | 639228761131421385 |
|
242 ms | 211.21.22.2 |
| 7 | 2026-08-21 02:26 | 639228751571206692 |
|
752 ms | 211.21.22.2 |
| 6 | 2026-08-21 02:10 | 639228741705571019 |
|
3 ms | 211.21.22.2 |
| 5 | 2026-08-21 01:53 | 639228731642208228 |
|
775 ms | 211.21.22.2 |
| 4 | 2026-08-21 01:00 | 639228700387002072 |
|
614 ms | 211.21.22.2 |
| 3 | 2026-08-21 00:44 | 639228690742014433 |
|
5 ms | 211.21.22.2 |
| 2 | 2026-08-21 00:28 | 639228680877937122 |
|
608 ms | 211.21.22.2 |
| 1 | 2026-08-21 00:12 | 639228670775860800 |
|
609 ms | 211.21.22.2 |