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 2026-08-20. For this date, NameServerHistory found 57 DNS check records, 57 successful responses, 0 failed responses, and 543 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
57
Historical checks stored for this nameserver on selected date
Average Latency
543 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-20 23:20
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
57
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 2026-08-20 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 |
|---|---|---|---|---|---|
| 57 | 2026-08-20 23:20 | 639228639850033448 |
|
3 ms | 211.21.22.2 |
| 56 | 2026-08-20 23:04 | 639228630204271870 |
|
251 ms | 211.21.22.2 |
| 55 | 2026-08-20 22:47 | 639228620295091135 |
|
627 ms | 211.21.22.2 |
| 54 | 2026-08-20 22:31 | 639228610298336915 |
|
589 ms | 211.21.22.2 |
| 53 | 2026-08-20 21:38 | 639228578917047616 |
|
718 ms | 211.21.22.2 |
| 52 | 2026-08-20 21:22 | 639228569046445709 |
|
636 ms | 211.21.22.2 |
| 51 | 2026-08-20 21:05 | 639228558946830986 |
|
306 ms | 211.21.22.2 |
| 50 | 2026-08-20 20:48 | 639228548977359217 |
|
2 ms | 211.21.22.2 |
| 49 | 2026-08-20 19:56 | 639228517494157668 |
|
608 ms | 211.21.22.2 |
| 48 | 2026-08-20 19:40 | 639228507374116892 |
|
617 ms | 211.21.22.2 |
| 47 | 2026-08-20 19:23 | 639228497315154893 |
|
2266 ms | 211.21.22.2 |
| 46 | 2026-08-20 19:06 | 639228487287648341 |
|
770 ms | 211.21.22.2 |
| 45 | 2026-08-20 18:13 | 639228455828123788 |
|
598 ms | 211.21.22.2 |
| 44 | 2026-08-20 17:57 | 639228445900082244 |
|
623 ms | 211.21.22.2 |
| 43 | 2026-08-20 17:40 | 639228435866352323 |
|
606 ms | 211.21.22.2 |
| 42 | 2026-08-20 17:23 | 639228425802273151 |
|
612 ms | 211.21.22.2 |
| 41 | 2026-08-20 16:30 | 639228393616324230 |
|
5 ms | 211.21.22.2 |
| 40 | 2026-08-20 16:13 | 639228383590408693 |
|
629 ms | 211.21.22.2 |
| 39 | 2026-08-20 15:56 | 639228373471467474 |
|
812 ms | 211.21.22.2 |
| 38 | 2026-08-20 15:39 | 639228363426647311 |
|
233 ms | 211.21.22.2 |
| 37 | 2026-08-20 14:46 | 639228331681701910 |
|
3 ms | 211.21.22.2 |
| 36 | 2026-08-20 14:30 | 639228321714746824 |
|
627 ms | 211.21.22.2 |
| 35 | 2026-08-20 14:13 | 639228311652090262 |
|
825 ms | 211.21.22.2 |
| 34 | 2026-08-20 13:56 | 639228301670088587 |
|
720 ms | 211.21.22.2 |
| 33 | 2026-08-20 13:03 | 639228269987976710 |
|
612 ms | 211.21.22.2 |
| 32 | 2026-08-20 12:47 | 639228260009452308 |
|
608 ms | 211.21.22.2 |
| 31 | 2026-08-20 12:30 | 639228249661740894 |
|
745 ms | 211.21.22.2 |
| 30 | 2026-08-20 12:13 | 639228239552680346 |
|
724 ms | 211.21.22.2 |
| 29 | 2026-08-20 11:20 | 639228207667580819 |
|
1191 ms | 211.21.22.2 |
| 28 | 2026-08-20 11:03 | 639228197494011560 |
|
616 ms | 211.21.22.2 |
| 27 | 2026-08-20 10:46 | 639228187497039939 |
|
756 ms | 211.21.22.2 |
| 26 | 2026-08-20 10:29 | 639228177408432646 |
|
627 ms | 211.21.22.2 |
| 25 | 2026-08-20 09:37 | 639228146356166262 |
|
594 ms | 211.21.22.2 |
| 24 | 2026-08-20 09:21 | 639228136541505712 |
|
616 ms | 211.21.22.2 |
| 23 | 2026-08-20 09:04 | 639228126519136598 |
|
5 ms | 211.21.22.2 |
| 22 | 2026-08-20 08:48 | 639228116537148885 |
|
628 ms | 211.21.22.2 |
| 21 | 2026-08-20 07:55 | 639228085320764351 |
|
261 ms | 211.21.22.2 |
| 20 | 2026-08-20 07:39 | 639228075444604839 |
|
3 ms | 211.21.22.2 |
| 19 | 2026-08-20 07:23 | 639228065615498985 |
|
608 ms | 211.21.22.2 |
| 18 | 2026-08-20 07:06 | 639228055675321422 |
|
610 ms | 211.21.22.2 |
| 17 | 2026-08-20 06:14 | 639228024230839396 |
|
234 ms | 211.21.22.2 |
| 16 | 2026-08-20 05:58 | 639228014720406505 |
|
2 ms | 211.21.22.2 |
| 15 | 2026-08-20 05:42 | 639228004930827030 |
|
620 ms | 211.21.22.2 |
| 14 | 2026-08-20 05:25 | 639227995103340154 |
|
596 ms | 211.21.22.2 |
| 13 | 2026-08-20 04:33 | 639227963811374894 |
|
259 ms | 211.21.22.2 |
| 12 | 2026-08-20 04:17 | 639227954132571365 |
|
787 ms | 211.21.22.2 |
| 11 | 2026-08-20 04:01 | 639227944541208342 |
|
624 ms | 211.21.22.2 |
| 10 | 2026-08-20 03:44 | 639227934657213484 |
|
599 ms | 211.21.22.2 |
| 9 | 2026-08-20 02:52 | 639227903628145469 |
|
606 ms | 211.21.22.2 |
| 8 | 2026-08-20 02:37 | 639227893995483475 |
|
262 ms | 211.21.22.2 |
| 7 | 2026-08-20 02:20 | 639227884280244209 |
|
238 ms | 211.21.22.2 |
| 6 | 2026-08-20 02:04 | 639227874371147132 |
|
3 ms | 211.21.22.2 |
| 5 | 2026-08-20 01:12 | 639227843224256432 |
|
748 ms | 211.21.22.2 |
| 4 | 2026-08-20 00:56 | 639227833720403506 |
|
240 ms | 211.21.22.2 |
| 3 | 2026-08-20 00:40 | 639227824170728278 |
|
783 ms | 211.21.22.2 |
| 2 | 2026-08-20 00:24 | 639227814865867570 |
|
609 ms | 211.21.22.2 |
| 1 | 2026-08-20 00:09 | 639227805445376839 |
|
849 ms | 211.21.22.2 |