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 2026-08-18. For this date, NameServerHistory found 76 DNS check records, 76 successful responses, 0 failed responses, and 702 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
702 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-18 23:59
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 2026-08-18 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 | 2026-08-18 23:59 | 639226935204800669 |
|
3 ms | 211.21.22.2 |
| 75 | 2026-08-18 23:42 | 639226925298919497 |
|
754 ms | 211.21.22.2 |
| 74 | 2026-08-18 23:26 | 639226915487885053 |
|
903 ms | 211.21.22.2 |
| 73 | 2026-08-18 23:09 | 639226905465760034 |
|
601 ms | 211.21.22.2 |
| 72 | 2026-08-18 22:53 | 639226895378104692 |
|
2 ms | 211.21.22.2 |
| 71 | 2026-08-18 21:59 | 639226863374232622 |
|
586 ms | 211.21.22.2 |
| 70 | 2026-08-18 21:43 | 639226853698516058 |
|
605 ms | 211.21.22.2 |
| 69 | 2026-08-18 21:26 | 639226843797360601 |
|
717 ms | 211.21.22.2 |
| 68 | 2026-08-18 21:10 | 639226834046588155 |
|
2270 ms | 211.21.22.2 |
| 67 | 2026-08-18 20:54 | 639226824234488533 |
|
4 ms | 211.21.22.2 |
| 66 | 2026-08-18 20:37 | 639226814549928621 |
|
599 ms | 211.21.22.2 |
| 65 | 2026-08-18 20:21 | 639226804721432353 |
|
606 ms | 211.21.22.2 |
| 64 | 2026-08-18 20:05 | 639226795048828184 |
|
2239 ms | 211.21.22.2 |
| 63 | 2026-08-18 19:49 | 639226785202482420 |
|
1010 ms | 211.21.22.2 |
| 62 | 2026-08-18 19:32 | 639226775309362607 |
|
633 ms | 211.21.22.2 |
| 61 | 2026-08-18 19:16 | 639226765406586155 |
|
724 ms | 211.21.22.2 |
| 60 | 2026-08-18 18:59 | 639226755437790519 |
|
609 ms | 211.21.22.2 |
| 59 | 2026-08-18 18:06 | 639226723856194457 |
|
869 ms | 211.21.22.2 |
| 58 | 2026-08-18 17:50 | 639226714050583422 |
|
729 ms | 211.21.22.2 |
| 57 | 2026-08-18 17:34 | 639226704236499724 |
|
834 ms | 211.21.22.2 |
| 56 | 2026-08-18 17:17 | 639226694184520163 |
|
609 ms | 211.21.22.2 |
| 55 | 2026-08-18 17:00 | 639226684161203477 |
|
599 ms | 211.21.22.2 |
| 54 | 2026-08-18 16:44 | 639226674305430109 |
|
588 ms | 211.21.22.2 |
| 53 | 2026-08-18 16:27 | 639226664489607984 |
|
612 ms | 211.21.22.2 |
| 52 | 2026-08-18 16:11 | 639226654533111667 |
|
613 ms | 211.21.22.2 |
| 51 | 2026-08-18 15:54 | 639226644778594725 |
|
720 ms | 211.21.22.2 |
| 50 | 2026-08-18 15:38 | 639226634901553621 |
|
635 ms | 211.21.22.2 |
| 49 | 2026-08-18 15:22 | 639226624921864967 |
|
760 ms | 211.21.22.2 |
| 48 | 2026-08-18 15:05 | 639226614939419403 |
|
604 ms | 211.21.22.2 |
| 47 | 2026-08-18 14:12 | 639226583021074771 |
|
605 ms | 211.21.22.2 |
| 46 | 2026-08-18 13:55 | 639226573279933585 |
|
608 ms | 211.21.22.2 |
| 45 | 2026-08-18 13:39 | 639226563494036301 |
|
627 ms | 211.21.22.2 |
| 44 | 2026-08-18 13:23 | 639226553708216256 |
|
724 ms | 211.21.22.2 |
| 43 | 2026-08-18 13:06 | 639226544003734815 |
|
383 ms | 211.21.22.2 |
| 42 | 2026-08-18 12:50 | 639226534105733155 |
|
611 ms | 211.21.22.2 |
| 41 | 2026-08-18 12:34 | 639226524298118898 |
|
614 ms | 211.21.22.2 |
| 40 | 2026-08-18 12:17 | 639226514525195335 |
|
597 ms | 211.21.22.2 |
| 39 | 2026-08-18 12:01 | 639226504703635320 |
|
592 ms | 211.21.22.2 |
| 38 | 2026-08-18 11:45 | 639226494737271720 |
|
608 ms | 211.21.22.2 |
| 37 | 2026-08-18 11:28 | 639226485005027236 |
|
604 ms | 211.21.22.2 |
| 36 | 2026-08-18 11:12 | 639226475133236105 |
|
613 ms | 211.21.22.2 |
| 35 | 2026-08-18 10:18 | 639226442975077052 |
|
622 ms | 211.21.22.2 |
| 34 | 2026-08-18 10:02 | 639226433317932039 |
|
2268 ms | 211.21.22.2 |
| 33 | 2026-08-18 09:46 | 639226423688431096 |
|
616 ms | 211.21.22.2 |
| 32 | 2026-08-18 09:30 | 639226413998250045 |
|
606 ms | 211.21.22.2 |
| 31 | 2026-08-18 09:13 | 639226404284554875 |
|
607 ms | 211.21.22.2 |
| 30 | 2026-08-18 08:57 | 639226394637043309 |
|
616 ms | 211.21.22.2 |
| 29 | 2026-08-18 08:41 | 639226385052447582 |
|
613 ms | 211.21.22.2 |
| 28 | 2026-08-18 08:25 | 639226375506189603 |
|
624 ms | 211.21.22.2 |
| 27 | 2026-08-18 08:09 | 639226365690646426 |
|
602 ms | 211.21.22.2 |
| 26 | 2026-08-18 07:53 | 639226355771007701 |
|
721 ms | 211.21.22.2 |
| 25 | 2026-08-18 07:36 | 639226345946269369 |
|
609 ms | 211.21.22.2 |
| 24 | 2026-08-18 07:20 | 639226336241601848 |
|
715 ms | 211.21.22.2 |
| 23 | 2026-08-18 06:28 | 639226304950675290 |
|
610 ms | 211.21.22.2 |
| 22 | 2026-08-18 06:12 | 639226295324754616 |
|
3 ms | 211.21.22.2 |
| 21 | 2026-08-18 05:56 | 639226285824640601 |
|
4299 ms | 211.21.22.2 |
| 20 | 2026-08-18 05:40 | 639226276321223917 |
|
619 ms | 211.21.22.2 |
| 19 | 2026-08-18 05:24 | 639226266800200046 |
|
637 ms | 211.21.22.2 |
| 18 | 2026-08-18 05:08 | 639226256958066164 |
|
568 ms | 211.21.22.2 |
| 17 | 2026-08-18 04:52 | 639226247432364597 |
|
625 ms | 211.21.22.2 |
| 16 | 2026-08-18 04:36 | 639226237703388552 |
|
1074 ms | 211.21.22.2 |
| 15 | 2026-08-18 04:20 | 639226227937569589 |
|
598 ms | 211.21.22.2 |
| 14 | 2026-08-18 04:04 | 639226218052465471 |
|
606 ms | 211.21.22.2 |
| 13 | 2026-08-18 03:47 | 639226208429623997 |
|
308 ms | 211.21.22.2 |
| 12 | 2026-08-18 03:31 | 639226198800675295 |
|
609 ms | 211.21.22.2 |
| 11 | 2026-08-18 02:39 | 639226167722042574 |
|
235 ms | 211.21.22.2 |
| 10 | 2026-08-18 02:23 | 639226158277924383 |
|
597 ms | 211.21.22.2 |
| 9 | 2026-08-18 02:08 | 639226148757810592 |
|
604 ms | 211.21.22.2 |
| 8 | 2026-08-18 01:52 | 639226139348611045 |
|
3 ms | 211.21.22.2 |
| 7 | 2026-08-18 01:36 | 639226129823462907 |
|
599 ms | 211.21.22.2 |
| 6 | 2026-08-18 01:20 | 639226120218260005 |
|
760 ms | 211.21.22.2 |
| 5 | 2026-08-18 01:04 | 639226110875503904 |
|
603 ms | 211.21.22.2 |
| 4 | 2026-08-18 00:48 | 639226101376311912 |
|
725 ms | 211.21.22.2 |
| 3 | 2026-08-18 00:33 | 639226091924943492 |
|
625 ms | 211.21.22.2 |
| 2 | 2026-08-18 00:17 | 639226082133158124 |
|
3 ms | 211.21.22.2 |
| 1 | 2026-08-18 00:00 | 639226072268080268 |
|
628 ms | 211.21.22.2 |