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 2026-08-15. For this date, NameServerHistory found 76 DNS check records, 76 successful responses, 0 failed responses, and 526 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
76
Historical checks stored for this nameserver on selected date
Average Latency
526 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-15 23:50
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
76
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 2026-08-15 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 |
|---|---|---|---|---|---|
| 76 | 2026-08-15 23:50 | 639224338276675277 |
|
612 ms | 211.21.22.2 |
| 75 | 2026-08-15 22:57 | 639224306594546649 |
|
609 ms | 211.21.22.2 |
| 74 | 2026-08-15 22:41 | 639224297145423303 |
|
587 ms | 211.21.22.2 |
| 73 | 2026-08-15 22:25 | 639224287678238833 |
|
606 ms | 211.21.22.2 |
| 72 | 2026-08-15 22:10 | 639224278490872828 |
|
641 ms | 211.21.22.2 |
| 71 | 2026-08-15 21:55 | 639224269149307826 |
|
615 ms | 211.21.22.2 |
| 70 | 2026-08-15 21:39 | 639224259868597616 |
|
602 ms | 211.21.22.2 |
| 69 | 2026-08-15 21:23 | 639224250518642175 |
|
596 ms | 211.21.22.2 |
| 68 | 2026-08-15 21:08 | 639224241064772383 |
|
737 ms | 211.21.22.2 |
| 67 | 2026-08-15 20:52 | 639224231691099605 |
|
513 ms | 211.21.22.2 |
| 66 | 2026-08-15 20:37 | 639224222468168159 |
|
591 ms | 211.21.22.2 |
| 65 | 2026-08-15 20:21 | 639224213173899635 |
|
754 ms | 211.21.22.2 |
| 64 | 2026-08-15 20:06 | 639224203914451783 |
|
609 ms | 211.21.22.2 |
| 63 | 2026-08-15 19:13 | 639224172202542163 |
|
295 ms | 211.21.22.2 |
| 62 | 2026-08-15 18:58 | 639224163338654093 |
|
635 ms | 211.21.22.2 |
| 61 | 2026-08-15 18:43 | 639224154287995374 |
|
4 ms | 211.21.22.2 |
| 60 | 2026-08-15 18:28 | 639224145118612503 |
|
609 ms | 211.21.22.2 |
| 59 | 2026-08-15 18:12 | 639224135995990731 |
|
3 ms | 211.21.22.2 |
| 58 | 2026-08-15 17:57 | 639224127185332624 |
|
592 ms | 211.21.22.2 |
| 57 | 2026-08-15 17:42 | 639224118229289175 |
|
614 ms | 211.21.22.2 |
| 56 | 2026-08-15 17:28 | 639224109273796359 |
|
304 ms | 211.21.22.2 |
| 55 | 2026-08-15 17:13 | 639224100490805608 |
|
2 ms | 211.21.22.2 |
| 54 | 2026-08-15 16:58 | 639224091353714490 |
|
270 ms | 211.21.22.2 |
| 53 | 2026-08-15 16:42 | 639224082033126828 |
|
628 ms | 211.21.22.2 |
| 52 | 2026-08-15 16:27 | 639224072736962403 |
|
617 ms | 211.21.22.2 |
| 51 | 2026-08-15 15:35 | 639224041475563754 |
|
266 ms | 211.21.22.2 |
| 50 | 2026-08-15 15:19 | 639224032345604453 |
|
608 ms | 211.21.22.2 |
| 49 | 2026-08-15 15:04 | 639224023169497283 |
|
2 ms | 211.21.22.2 |
| 48 | 2026-08-15 14:49 | 639224013981146405 |
|
264 ms | 211.21.22.2 |
| 47 | 2026-08-15 14:34 | 639224004883412586 |
|
2 ms | 211.21.22.2 |
| 46 | 2026-08-15 14:18 | 639223995612880615 |
|
591 ms | 211.21.22.2 |
| 45 | 2026-08-15 14:03 | 639223986271830789 |
|
618 ms | 211.21.22.2 |
| 44 | 2026-08-15 13:47 | 639223977005780949 |
|
587 ms | 211.21.22.2 |
| 43 | 2026-08-15 13:32 | 639223967653137793 |
|
2314 ms | 211.21.22.2 |
| 42 | 2026-08-15 13:16 | 639223958286010799 |
|
616 ms | 211.21.22.2 |
| 41 | 2026-08-15 13:00 | 639223948936108345 |
|
656 ms | 211.21.22.2 |
| 40 | 2026-08-15 12:45 | 639223939673066880 |
|
624 ms | 211.21.22.2 |
| 39 | 2026-08-15 11:53 | 639223908317760530 |
|
594 ms | 211.21.22.2 |
| 38 | 2026-08-15 11:37 | 639223898992594258 |
|
613 ms | 211.21.22.2 |
| 37 | 2026-08-15 11:22 | 639223889761312823 |
|
611 ms | 211.21.22.2 |
| 36 | 2026-08-15 11:06 | 639223880359273507 |
|
599 ms | 211.21.22.2 |
| 35 | 2026-08-15 10:51 | 639223870920466808 |
|
631 ms | 211.21.22.2 |
| 34 | 2026-08-15 10:35 | 639223861579762179 |
|
600 ms | 211.21.22.2 |
| 33 | 2026-08-15 10:19 | 639223852238616009 |
|
777 ms | 211.21.22.2 |
| 32 | 2026-08-15 10:04 | 639223843019815620 |
|
592 ms | 211.21.22.2 |
| 31 | 2026-08-15 09:48 | 639223833669915012 |
|
615 ms | 211.21.22.2 |
| 30 | 2026-08-15 09:33 | 639223824494613222 |
|
717 ms | 211.21.22.2 |
| 29 | 2026-08-15 09:17 | 639223815116325293 |
|
593 ms | 211.21.22.2 |
| 28 | 2026-08-15 09:02 | 639223805493870221 |
|
732 ms | 211.21.22.2 |
| 27 | 2026-08-15 08:09 | 639223774218660438 |
|
601 ms | 211.21.22.2 |
| 26 | 2026-08-15 07:54 | 639223764663090372 |
|
608 ms | 211.21.22.2 |
| 25 | 2026-08-15 07:38 | 639223755338811400 |
|
604 ms | 211.21.22.2 |
| 24 | 2026-08-15 07:22 | 639223746019193268 |
|
2 ms | 211.21.22.2 |
| 23 | 2026-08-15 07:07 | 639223736658778104 |
|
3 ms | 211.21.22.2 |
| 22 | 2026-08-15 06:51 | 639223727330194499 |
|
2 ms | 211.21.22.2 |
| 21 | 2026-08-15 06:36 | 639223717848514742 |
|
777 ms | 211.21.22.2 |
| 20 | 2026-08-15 06:20 | 639223708284754056 |
|
337 ms | 211.21.22.2 |
| 19 | 2026-08-15 06:04 | 639223699061259933 |
|
3 ms | 211.21.22.2 |
| 18 | 2026-08-15 05:49 | 639223689592545140 |
|
3 ms | 211.21.22.2 |
| 17 | 2026-08-15 05:33 | 639223680143410810 |
|
605 ms | 211.21.22.2 |
| 16 | 2026-08-15 05:17 | 639223670514517104 |
|
846 ms | 211.21.22.2 |
| 15 | 2026-08-15 04:24 | 639223638855054294 |
|
579 ms | 211.21.22.2 |
| 14 | 2026-08-15 04:08 | 639223629623335972 |
|
593 ms | 211.21.22.2 |
| 13 | 2026-08-15 03:53 | 639223620390189495 |
|
320 ms | 211.21.22.2 |
| 12 | 2026-08-15 03:38 | 639223610916950440 |
|
591 ms | 211.21.22.2 |
| 11 | 2026-08-15 03:22 | 639223601597759168 |
|
617 ms | 211.21.22.2 |
| 10 | 2026-08-15 03:06 | 639223592342172093 |
|
3 ms | 211.21.22.2 |
| 9 | 2026-08-15 02:51 | 639223583324121497 |
|
615 ms | 211.21.22.2 |
| 8 | 2026-08-15 02:36 | 639223574086714218 |
|
610 ms | 211.21.22.2 |
| 7 | 2026-08-15 02:20 | 639223564698424889 |
|
597 ms | 211.21.22.2 |
| 6 | 2026-08-15 02:05 | 639223555408664206 |
|
618 ms | 211.21.22.2 |
| 5 | 2026-08-15 01:49 | 639223546000912416 |
|
396 ms | 211.21.22.2 |
| 4 | 2026-08-15 01:33 | 639223536550774847 |
|
604 ms | 211.21.22.2 |
| 3 | 2026-08-15 00:41 | 639223505017205611 |
|
769 ms | 211.21.22.2 |
| 2 | 2026-08-15 00:25 | 639223495784410207 |
|
633 ms | 211.21.22.2 |
| 1 | 2026-08-15 00:10 | 639223486524583054 |
|
599 ms | 211.21.22.2 |