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 2026-08-17. For this date, NameServerHistory found 71 DNS check records, 71 successful responses, 0 failed responses, and 602 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
71
Historical checks stored for this nameserver on selected date
Average Latency
602 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-17 23:44
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
71
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 2026-08-17 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 |
|---|---|---|---|---|---|
| 71 | 2026-08-17 23:44 | 639226062577647657 |
|
626 ms | 211.21.22.2 |
| 70 | 2026-08-17 22:51 | 639226031060857136 |
|
2 ms | 211.21.22.2 |
| 69 | 2026-08-17 22:35 | 639226021535117364 |
|
617 ms | 211.21.22.2 |
| 68 | 2026-08-17 22:20 | 639226011884237078 |
|
788 ms | 211.21.22.2 |
| 67 | 2026-08-17 22:03 | 639226002309299142 |
|
712 ms | 211.21.22.2 |
| 66 | 2026-08-17 21:47 | 639225992791784448 |
|
4 ms | 211.21.22.2 |
| 65 | 2026-08-17 21:32 | 639225983045271390 |
|
10 ms | 211.21.22.2 |
| 64 | 2026-08-17 21:15 | 639225973246293513 |
|
604 ms | 211.21.22.2 |
| 63 | 2026-08-17 20:59 | 639225963620186236 |
|
618 ms | 211.21.22.2 |
| 62 | 2026-08-17 20:43 | 639225953899183916 |
|
1286 ms | 211.21.22.2 |
| 61 | 2026-08-17 20:27 | 639225944391528206 |
|
608 ms | 211.21.22.2 |
| 60 | 2026-08-17 20:11 | 639225934593254169 |
|
628 ms | 211.21.22.2 |
| 59 | 2026-08-17 19:54 | 639225924669984512 |
|
724 ms | 211.21.22.2 |
| 58 | 2026-08-17 19:01 | 639225893048561320 |
|
725 ms | 211.21.22.2 |
| 57 | 2026-08-17 18:45 | 639225883481298424 |
|
805 ms | 211.21.22.2 |
| 56 | 2026-08-17 18:29 | 639225873845394034 |
|
3 ms | 211.21.22.2 |
| 55 | 2026-08-17 18:13 | 639225864216078662 |
|
5 ms | 211.21.22.2 |
| 54 | 2026-08-17 17:57 | 639225854541857773 |
|
783 ms | 211.21.22.2 |
| 53 | 2026-08-17 17:41 | 639225844733604072 |
|
595 ms | 211.21.22.2 |
| 52 | 2026-08-17 17:25 | 639225835085229232 |
|
738 ms | 211.21.22.2 |
| 51 | 2026-08-17 17:09 | 639225825349373981 |
|
700 ms | 211.21.22.2 |
| 50 | 2026-08-17 16:52 | 639225815690604161 |
|
4 ms | 211.21.22.2 |
| 49 | 2026-08-17 16:36 | 639225805952472306 |
|
713 ms | 211.21.22.2 |
| 48 | 2026-08-17 16:20 | 639225796264729638 |
|
607 ms | 211.21.22.2 |
| 47 | 2026-08-17 16:04 | 639225786326499329 |
|
595 ms | 211.21.22.2 |
| 46 | 2026-08-17 15:11 | 639225754798130711 |
|
786 ms | 211.21.22.2 |
| 45 | 2026-08-17 14:55 | 639225745123193922 |
|
615 ms | 211.21.22.2 |
| 44 | 2026-08-17 14:39 | 639225735540597271 |
|
758 ms | 211.21.22.2 |
| 43 | 2026-08-17 14:23 | 639225725894857396 |
|
619 ms | 211.21.22.2 |
| 42 | 2026-08-17 14:07 | 639225716249606913 |
|
721 ms | 211.21.22.2 |
| 41 | 2026-08-17 13:50 | 639225706638238179 |
|
707 ms | 211.21.22.2 |
| 40 | 2026-08-17 13:34 | 639225696949691423 |
|
317 ms | 211.21.22.2 |
| 39 | 2026-08-17 13:18 | 639225687286186336 |
|
756 ms | 211.21.22.2 |
| 38 | 2026-08-17 13:02 | 639225677679573133 |
|
724 ms | 211.21.22.2 |
| 37 | 2026-08-17 12:46 | 639225667957861024 |
|
713 ms | 211.21.22.2 |
| 36 | 2026-08-17 12:30 | 639225658298791618 |
|
596 ms | 211.21.22.2 |
| 35 | 2026-08-17 12:14 | 639225648583652785 |
|
593 ms | 211.21.22.2 |
| 34 | 2026-08-17 11:21 | 639225617000524308 |
|
2287 ms | 211.21.22.2 |
| 33 | 2026-08-17 11:05 | 639225607668541600 |
|
603 ms | 211.21.22.2 |
| 32 | 2026-08-17 10:50 | 639225598117279238 |
|
603 ms | 211.21.22.2 |
| 31 | 2026-08-17 10:34 | 639225588751002710 |
|
605 ms | 211.21.22.2 |
| 30 | 2026-08-17 10:18 | 639225579295831051 |
|
605 ms | 211.21.22.2 |
| 29 | 2026-08-17 10:02 | 639225569761469940 |
|
706 ms | 211.21.22.2 |
| 28 | 2026-08-17 09:46 | 639225560161422333 |
|
742 ms | 211.21.22.2 |
| 27 | 2026-08-17 09:30 | 639225550739955565 |
|
613 ms | 211.21.22.2 |
| 26 | 2026-08-17 09:15 | 639225541125222426 |
|
767 ms | 211.21.22.2 |
| 25 | 2026-08-17 08:59 | 639225531526675983 |
|
590 ms | 211.21.22.2 |
| 24 | 2026-08-17 08:42 | 639225521915528222 |
|
599 ms | 211.21.22.2 |
| 23 | 2026-08-17 08:26 | 639225512148151789 |
|
730 ms | 211.21.22.2 |
| 22 | 2026-08-17 07:34 | 639225480786142412 |
|
601 ms | 211.21.22.2 |
| 21 | 2026-08-17 07:18 | 639225471394348551 |
|
716 ms | 211.21.22.2 |
| 20 | 2026-08-17 07:02 | 639225462031685068 |
|
795 ms | 211.21.22.2 |
| 19 | 2026-08-17 06:47 | 639225452639458328 |
|
713 ms | 211.21.22.2 |
| 18 | 2026-08-17 06:31 | 639225443300966543 |
|
596 ms | 211.21.22.2 |
| 17 | 2026-08-17 06:16 | 639225433880499379 |
|
597 ms | 211.21.22.2 |
| 16 | 2026-08-17 06:00 | 639225424395198277 |
|
292 ms | 211.21.22.2 |
| 15 | 2026-08-17 05:44 | 639225414744137487 |
|
3 ms | 211.21.22.2 |
| 14 | 2026-08-17 05:28 | 639225405186783164 |
|
7 ms | 211.21.22.2 |
| 13 | 2026-08-17 05:12 | 639225395563669822 |
|
608 ms | 211.21.22.2 |
| 12 | 2026-08-17 04:56 | 639225386076645158 |
|
586 ms | 211.21.22.2 |
| 11 | 2026-08-17 04:40 | 639225376620669704 |
|
596 ms | 211.21.22.2 |
| 10 | 2026-08-17 03:48 | 639225345580892706 |
|
252 ms | 211.21.22.2 |
| 9 | 2026-08-17 03:33 | 639225336207383710 |
|
858 ms | 211.21.22.2 |
| 8 | 2026-08-17 03:17 | 639225326726565001 |
|
604 ms | 211.21.22.2 |
| 7 | 2026-08-17 03:01 | 639225317249271010 |
|
715 ms | 211.21.22.2 |
| 6 | 2026-08-17 02:10 | 639225286280886044 |
|
606 ms | 211.21.22.2 |
| 5 | 2026-08-17 01:54 | 639225276872567548 |
|
4 ms | 211.21.22.2 |
| 4 | 2026-08-17 01:38 | 639225267353865348 |
|
803 ms | 211.21.22.2 |
| 3 | 2026-08-17 01:22 | 639225258033914248 |
|
642 ms | 211.21.22.2 |
| 2 | 2026-08-17 00:30 | 639225226652221583 |
|
706 ms | 211.21.22.2 |
| 1 | 2026-08-17 00:15 | 639225217156387684 |
|
611 ms | 211.21.22.2 |