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 2026-08-11. For this date, NameServerHistory found 76 DNS check records, 76 successful responses, 0 failed responses, and 551 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
551 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-11 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
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 2026-08-11 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 | 2026-08-11 23:44 | 639220878864937382 |
|
731 ms | 211.21.22.2 |
| 75 | 2026-08-11 22:51 | 639220847369072314 |
|
290 ms | 211.21.22.2 |
| 74 | 2026-08-11 22:36 | 639220838037764925 |
|
289 ms | 211.21.22.2 |
| 73 | 2026-08-11 22:20 | 639220828735120634 |
|
235 ms | 211.21.22.2 |
| 72 | 2026-08-11 22:05 | 639220819447979766 |
|
693 ms | 211.21.22.2 |
| 71 | 2026-08-11 21:49 | 639220810056531741 |
|
588 ms | 211.21.22.2 |
| 70 | 2026-08-11 21:34 | 639220800745746593 |
|
290 ms | 211.21.22.2 |
| 69 | 2026-08-11 21:18 | 639220791351626349 |
|
592 ms | 211.21.22.2 |
| 68 | 2026-08-11 21:03 | 639220782021256610 |
|
807 ms | 211.21.22.2 |
| 67 | 2026-08-11 20:47 | 639220772603347755 |
|
739 ms | 211.21.22.2 |
| 66 | 2026-08-11 20:31 | 639220763224057047 |
|
289 ms | 211.21.22.2 |
| 65 | 2026-08-11 20:15 | 639220753691117767 |
|
290 ms | 211.21.22.2 |
| 64 | 2026-08-11 20:00 | 639220744107836218 |
|
721 ms | 211.21.22.2 |
| 63 | 2026-08-11 19:06 | 639220711927629898 |
|
624 ms | 211.21.22.2 |
| 62 | 2026-08-11 18:50 | 639220702299437921 |
|
612 ms | 211.21.22.2 |
| 61 | 2026-08-11 18:34 | 639220692505468181 |
|
731 ms | 211.21.22.2 |
| 60 | 2026-08-11 18:18 | 639220682669911239 |
|
616 ms | 211.21.22.2 |
| 59 | 2026-08-11 18:01 | 639220672929841526 |
|
305 ms | 211.21.22.2 |
| 58 | 2026-08-11 17:45 | 639220663225662315 |
|
604 ms | 211.21.22.2 |
| 57 | 2026-08-11 17:29 | 639220653846255684 |
|
1028 ms | 211.21.22.2 |
| 56 | 2026-08-11 17:13 | 639220644420909059 |
|
1364 ms | 211.21.22.2 |
| 55 | 2026-08-11 16:58 | 639220635074970435 |
|
640 ms | 211.21.22.2 |
| 54 | 2026-08-11 16:42 | 639220625614385966 |
|
592 ms | 211.21.22.2 |
| 53 | 2026-08-11 16:26 | 639220616132212636 |
|
648 ms | 211.21.22.2 |
| 52 | 2026-08-11 16:10 | 639220606533651662 |
|
727 ms | 211.21.22.2 |
| 51 | 2026-08-11 15:17 | 639220574514514318 |
|
652 ms | 211.21.22.2 |
| 50 | 2026-08-11 15:01 | 639220565124823874 |
|
619 ms | 211.21.22.2 |
| 49 | 2026-08-11 14:45 | 639220555799311478 |
|
1409 ms | 211.21.22.2 |
| 48 | 2026-08-11 14:30 | 639220546481577614 |
|
611 ms | 211.21.22.2 |
| 47 | 2026-08-11 14:14 | 639220537036533154 |
|
683 ms | 211.21.22.2 |
| 46 | 2026-08-11 13:59 | 639220527719177174 |
|
619 ms | 211.21.22.2 |
| 45 | 2026-08-11 13:43 | 639220518173088308 |
|
649 ms | 211.21.22.2 |
| 44 | 2026-08-11 13:27 | 639220508902896243 |
|
886 ms | 211.21.22.2 |
| 43 | 2026-08-11 13:12 | 639220499455923005 |
|
797 ms | 211.21.22.2 |
| 42 | 2026-08-11 12:56 | 639220490082583768 |
|
597 ms | 211.21.22.2 |
| 41 | 2026-08-11 12:40 | 639220480636590998 |
|
628 ms | 211.21.22.2 |
| 40 | 2026-08-11 12:25 | 639220469585029273 |
|
758 ms | 211.21.22.2 |
| 39 | 2026-08-11 11:29 | 639220438074188884 |
|
1349 ms | 211.21.22.2 |
| 38 | 2026-08-11 11:14 | 639220428789720049 |
|
597 ms | 211.21.22.2 |
| 37 | 2026-08-11 10:58 | 639220419558302820 |
|
606 ms | 211.21.22.2 |
| 36 | 2026-08-11 10:43 | 639220410448738795 |
|
4 ms | 211.21.22.2 |
| 35 | 2026-08-11 10:28 | 639220401034081530 |
|
612 ms | 211.21.22.2 |
| 34 | 2026-08-11 10:12 | 639220391766674161 |
|
733 ms | 211.21.22.2 |
| 33 | 2026-08-11 09:57 | 639220382275807148 |
|
789 ms | 211.21.22.2 |
| 32 | 2026-08-11 09:41 | 639220373034162867 |
|
4 ms | 211.21.22.2 |
| 31 | 2026-08-11 09:25 | 639220363994971859 |
|
597 ms | 211.21.22.2 |
| 30 | 2026-08-11 09:10 | 639220354563965455 |
|
612 ms | 211.21.22.2 |
| 29 | 2026-08-11 08:55 | 639220345437414880 |
|
745 ms | 211.21.22.2 |
| 28 | 2026-08-11 08:39 | 639220336024248987 |
|
589 ms | 211.21.22.2 |
| 27 | 2026-08-11 07:46 | 639220304233635692 |
|
626 ms | 211.21.22.2 |
| 26 | 2026-08-11 07:31 | 639220294872170960 |
|
595 ms | 211.21.22.2 |
| 25 | 2026-08-11 07:15 | 639220285547177980 |
|
623 ms | 211.21.22.2 |
| 24 | 2026-08-11 07:00 | 639220276337941315 |
|
595 ms | 211.21.22.2 |
| 23 | 2026-08-11 06:44 | 639220267175191677 |
|
286 ms | 211.21.22.2 |
| 22 | 2026-08-11 06:29 | 639220257981518924 |
|
729 ms | 211.21.22.2 |
| 21 | 2026-08-11 06:14 | 639220249265489070 |
|
524 ms | 211.21.22.2 |
| 20 | 2026-08-11 06:00 | 639220240700249205 |
|
3 ms | 211.21.22.2 |
| 19 | 2026-08-11 05:45 | 639220231975029986 |
|
592 ms | 211.21.22.2 |
| 18 | 2026-08-11 05:31 | 639220223261176932 |
|
6 ms | 211.21.22.2 |
| 17 | 2026-08-11 05:16 | 639220214366718456 |
|
606 ms | 211.21.22.2 |
| 16 | 2026-08-11 05:01 | 639220205306334524 |
|
5 ms | 211.21.22.2 |
| 15 | 2026-08-11 04:10 | 639220174463175061 |
|
608 ms | 211.21.22.2 |
| 14 | 2026-08-11 03:55 | 639220165777190438 |
|
3 ms | 211.21.22.2 |
| 13 | 2026-08-11 03:41 | 639220156880374825 |
|
643 ms | 211.21.22.2 |
| 12 | 2026-08-11 03:26 | 639220148139986945 |
|
612 ms | 211.21.22.2 |
| 11 | 2026-08-11 03:11 | 639220139271074299 |
|
3 ms | 211.21.22.2 |
| 10 | 2026-08-11 02:56 | 639220130565901336 |
|
3 ms | 211.21.22.2 |
| 9 | 2026-08-11 02:42 | 639220121659980575 |
|
283 ms | 211.21.22.2 |
| 8 | 2026-08-11 02:27 | 639220112857650894 |
|
619 ms | 211.21.22.2 |
| 7 | 2026-08-11 02:12 | 639220103767686219 |
|
284 ms | 211.21.22.2 |
| 6 | 2026-08-11 01:57 | 639220094545970611 |
|
302 ms | 211.21.22.2 |
| 5 | 2026-08-11 01:41 | 639220085476091081 |
|
610 ms | 211.21.22.2 |
| 4 | 2026-08-11 01:26 | 639220076243751161 |
|
304 ms | 211.21.22.2 |
| 3 | 2026-08-11 00:35 | 639220045322845190 |
|
593 ms | 211.21.22.2 |
| 2 | 2026-08-11 00:20 | 639220036434132314 |
|
3 ms | 211.21.22.2 |
| 1 | 2026-08-11 00:05 | 639220027366289509 |
|
592 ms | 211.21.22.2 |