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 2026-08-19. For this date, NameServerHistory found 74 DNS check records, 74 successful responses, 0 failed responses, and 573 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
74
Historical checks stored for this nameserver on selected date
Average Latency
573 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-19 23:53
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
74
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 2026-08-19 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 |
|---|---|---|---|---|---|
| 74 | 2026-08-19 23:53 | 639227795899225951 |
|
247 ms | 211.21.22.2 |
| 73 | 2026-08-19 23:37 | 639227786351762008 |
|
632 ms | 211.21.22.2 |
| 72 | 2026-08-19 23:21 | 639227776640591733 |
|
2 ms | 211.21.22.2 |
| 71 | 2026-08-19 23:05 | 639227767128841282 |
|
237 ms | 211.21.22.2 |
| 70 | 2026-08-19 22:49 | 639227757477304711 |
|
604 ms | 211.21.22.2 |
| 69 | 2026-08-19 22:33 | 639227747572098014 |
|
2284 ms | 211.21.22.2 |
| 68 | 2026-08-19 22:16 | 639227737588613113 |
|
631 ms | 211.21.22.2 |
| 67 | 2026-08-19 21:23 | 639227706134603955 |
|
691 ms | 211.21.22.2 |
| 66 | 2026-08-19 21:08 | 639227696589027396 |
|
739 ms | 211.21.22.2 |
| 65 | 2026-08-19 20:52 | 639227687097707639 |
|
621 ms | 211.21.22.2 |
| 64 | 2026-08-19 20:36 | 639227677474464487 |
|
2 ms | 211.21.22.2 |
| 63 | 2026-08-19 20:20 | 639227667767441118 |
|
3 ms | 211.21.22.2 |
| 62 | 2026-08-19 20:03 | 639227657984833832 |
|
604 ms | 211.21.22.2 |
| 61 | 2026-08-19 19:47 | 639227648079992640 |
|
883 ms | 211.21.22.2 |
| 60 | 2026-08-19 19:31 | 639227638125048441 |
|
616 ms | 211.21.22.2 |
| 59 | 2026-08-19 19:14 | 639227628211392142 |
|
622 ms | 211.21.22.2 |
| 58 | 2026-08-19 18:57 | 639227618261696275 |
|
597 ms | 211.21.22.2 |
| 57 | 2026-08-19 18:41 | 639227608366233645 |
|
617 ms | 211.21.22.2 |
| 56 | 2026-08-19 18:24 | 639227598301787588 |
|
608 ms | 211.21.22.2 |
| 55 | 2026-08-19 17:31 | 639227566241010716 |
|
610 ms | 211.21.22.2 |
| 54 | 2026-08-19 17:14 | 639227556454538959 |
|
621 ms | 211.21.22.2 |
| 53 | 2026-08-19 16:58 | 639227546640305542 |
|
604 ms | 211.21.22.2 |
| 52 | 2026-08-19 16:41 | 639227536965466472 |
|
599 ms | 211.21.22.2 |
| 51 | 2026-08-19 16:25 | 639227527048658280 |
|
706 ms | 211.21.22.2 |
| 50 | 2026-08-19 16:09 | 639227517386634438 |
|
607 ms | 211.21.22.2 |
| 49 | 2026-08-19 15:53 | 639227507459551637 |
|
596 ms | 211.21.22.2 |
| 48 | 2026-08-19 15:36 | 639227497515595277 |
|
606 ms | 211.21.22.2 |
| 47 | 2026-08-19 15:19 | 639227487441798036 |
|
2333 ms | 211.21.22.2 |
| 46 | 2026-08-19 15:03 | 639227477445551863 |
|
599 ms | 211.21.22.2 |
| 45 | 2026-08-19 14:46 | 639227467297067891 |
|
592 ms | 211.21.22.2 |
| 44 | 2026-08-19 14:29 | 639227457057795635 |
|
867 ms | 211.21.22.2 |
| 43 | 2026-08-19 13:35 | 639227425244777397 |
|
3 ms | 211.21.22.2 |
| 42 | 2026-08-19 13:19 | 639227415422116485 |
|
599 ms | 211.21.22.2 |
| 41 | 2026-08-19 13:02 | 639227405307256053 |
|
605 ms | 211.21.22.2 |
| 40 | 2026-08-19 12:46 | 639227395396602630 |
|
598 ms | 211.21.22.2 |
| 39 | 2026-08-19 12:29 | 639227385510363611 |
|
621 ms | 211.21.22.2 |
| 38 | 2026-08-19 12:13 | 639227375508324850 |
|
257 ms | 211.21.22.2 |
| 37 | 2026-08-19 11:56 | 639227365326611906 |
|
4 ms | 211.21.22.2 |
| 36 | 2026-08-19 11:39 | 639227355360014208 |
|
707 ms | 211.21.22.2 |
| 35 | 2026-08-19 11:22 | 639227345036782165 |
|
600 ms | 211.21.22.2 |
| 34 | 2026-08-19 11:05 | 639227334992964533 |
|
607 ms | 211.21.22.2 |
| 33 | 2026-08-19 10:48 | 639227324986605572 |
|
609 ms | 211.21.22.2 |
| 32 | 2026-08-19 10:32 | 639227314928414539 |
|
609 ms | 211.21.22.2 |
| 31 | 2026-08-19 09:38 | 639227283029182134 |
|
2 ms | 211.21.22.2 |
| 30 | 2026-08-19 09:22 | 639227273294779350 |
|
606 ms | 211.21.22.2 |
| 29 | 2026-08-19 09:06 | 639227263525231313 |
|
614 ms | 211.21.22.2 |
| 28 | 2026-08-19 08:49 | 639227253578313363 |
|
619 ms | 211.21.22.2 |
| 27 | 2026-08-19 08:33 | 639227243649973322 |
|
758 ms | 211.21.22.2 |
| 26 | 2026-08-19 08:16 | 639227233581059317 |
|
605 ms | 211.21.22.2 |
| 25 | 2026-08-19 07:59 | 639227223667352067 |
|
611 ms | 211.21.22.2 |
| 24 | 2026-08-19 07:43 | 639227213714837066 |
|
613 ms | 211.21.22.2 |
| 23 | 2026-08-19 07:26 | 639227203701208496 |
|
605 ms | 211.21.22.2 |
| 22 | 2026-08-19 07:10 | 639227193643202179 |
|
618 ms | 211.21.22.2 |
| 21 | 2026-08-19 06:53 | 639227183584431597 |
|
604 ms | 211.21.22.2 |
| 20 | 2026-08-19 06:36 | 639227173347403088 |
|
701 ms | 211.21.22.2 |
| 19 | 2026-08-19 05:42 | 639227141523007601 |
|
4 ms | 211.21.22.2 |
| 18 | 2026-08-19 05:26 | 639227131785931574 |
|
771 ms | 211.21.22.2 |
| 17 | 2026-08-19 05:10 | 639227122176475389 |
|
879 ms | 211.21.22.2 |
| 16 | 2026-08-19 04:54 | 639227112668934596 |
|
245 ms | 211.21.22.2 |
| 15 | 2026-08-19 04:38 | 639227102773292788 |
|
711 ms | 211.21.22.2 |
| 14 | 2026-08-19 04:22 | 639227093141136930 |
|
721 ms | 211.21.22.2 |
| 13 | 2026-08-19 04:06 | 639227083449420147 |
|
617 ms | 211.21.22.2 |
| 12 | 2026-08-19 03:49 | 639227073771748493 |
|
9 ms | 211.21.22.2 |
| 11 | 2026-08-19 03:33 | 639227063977347614 |
|
605 ms | 211.21.22.2 |
| 10 | 2026-08-19 03:17 | 639227054253519024 |
|
638 ms | 211.21.22.2 |
| 9 | 2026-08-19 03:01 | 639227044381963886 |
|
476 ms | 211.21.22.2 |
| 8 | 2026-08-19 02:44 | 639227034441085514 |
|
599 ms | 211.21.22.2 |
| 7 | 2026-08-19 01:52 | 639227003126489968 |
|
610 ms | 211.21.22.2 |
| 6 | 2026-08-19 01:36 | 639226993456311614 |
|
3 ms | 211.21.22.2 |
| 5 | 2026-08-19 01:20 | 639226983847312345 |
|
306 ms | 211.21.22.2 |
| 4 | 2026-08-19 01:04 | 639226974357874853 |
|
612 ms | 211.21.22.2 |
| 3 | 2026-08-19 00:48 | 639226964670484721 |
|
603 ms | 211.21.22.2 |
| 2 | 2026-08-19 00:32 | 639226954857899696 |
|
613 ms | 211.21.22.2 |
| 1 | 2026-08-19 00:15 | 639226945091603488 |
|
3 ms | 211.21.22.2 |