History for ns2.cernet.com
Domain: cernet.com • Tracking since 2026-08-04 23:25 UTC
DNS response history for ns2.cernet.com
ns2.cernet.com 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 2026-08-21. For this date, NameServerHistory found 73 DNS check records, 73 successful responses, 0 failed responses, and 368 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 ns2.cernet.com.
Records on Selected Date
73
Historical checks stored for this nameserver on selected date
Average Latency
368 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-21 23:59
All timestamps shown in UTC
Latest Resolved IP on Selected Date
121.194.2.55
Most recently resolved hosting IP on selected date
Successful Responses
73
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 ns2.cernet.com
Showing DNS history for 2026-08-21 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 |
|---|---|---|---|---|---|
| 73 | 2026-08-21 23:59 | 639229527598660841 |
|
282 ms | 121.194.2.55 |
| 72 | 2026-08-21 23:43 | 639229517954323214 |
|
286 ms | 121.194.2.55 |
| 71 | 2026-08-21 23:27 | 639229508269999021 |
|
2 ms | 121.194.2.55 |
| 70 | 2026-08-21 23:11 | 639229498559060171 |
|
3 ms | 121.194.2.55 |
| 69 | 2026-08-21 22:54 | 639229488519347586 |
|
502 ms | 121.194.2.55 |
| 68 | 2026-08-21 22:01 | 639229456606578934 |
|
237 ms | 121.194.2.55 |
| 67 | 2026-08-21 21:45 | 639229446985772499 |
|
254 ms | 121.194.2.55 |
| 66 | 2026-08-21 21:29 | 639229437367313098 |
|
497 ms | 121.194.2.55 |
| 65 | 2026-08-21 21:13 | 639229427923950391 |
|
340 ms | 121.194.2.55 |
| 64 | 2026-08-21 20:57 | 639229418168588854 |
|
2 ms | 121.194.2.55 |
| 63 | 2026-08-21 20:41 | 639229408345678334 |
|
696 ms | 121.194.2.55 |
| 62 | 2026-08-21 20:24 | 639229398616354648 |
|
2 ms | 121.194.2.55 |
| 61 | 2026-08-21 20:08 | 639229388634592323 |
|
2 ms | 121.194.2.55 |
| 60 | 2026-08-21 19:51 | 639229378792837692 |
|
535 ms | 121.194.2.55 |
| 59 | 2026-08-21 19:35 | 639229369154682311 |
|
526 ms | 121.194.2.55 |
| 58 | 2026-08-21 19:19 | 639229359248017926 |
|
528 ms | 121.194.2.55 |
| 57 | 2026-08-21 19:02 | 639229349124294642 |
|
507 ms | 121.194.2.55 |
| 56 | 2026-08-21 18:09 | 639229317791715692 |
|
529 ms | 121.194.2.55 |
| 55 | 2026-08-21 17:53 | 639229308115194575 |
|
286 ms | 121.194.2.55 |
| 54 | 2026-08-21 17:37 | 639229298320320558 |
|
3 ms | 121.194.2.55 |
| 53 | 2026-08-21 17:21 | 639229288674863221 |
|
730 ms | 121.194.2.55 |
| 52 | 2026-08-21 17:05 | 639229278983677079 |
|
3 ms | 121.194.2.55 |
| 51 | 2026-08-21 16:49 | 639229269405517175 |
|
2487 ms | 121.194.2.55 |
| 50 | 2026-08-21 16:33 | 639229259594798244 |
|
3 ms | 121.194.2.55 |
| 49 | 2026-08-21 16:16 | 639229249736681188 |
|
662 ms | 121.194.2.55 |
| 48 | 2026-08-21 16:00 | 639229239699417787 |
|
4 ms | 121.194.2.55 |
| 47 | 2026-08-21 15:43 | 639229229621964033 |
|
280 ms | 121.194.2.55 |
| 46 | 2026-08-21 15:26 | 639229219567270965 |
|
504 ms | 121.194.2.55 |
| 45 | 2026-08-21 15:09 | 639229209406666856 |
|
421 ms | 121.194.2.55 |
| 44 | 2026-08-21 14:16 | 639229177815876178 |
|
5 ms | 121.194.2.55 |
| 43 | 2026-08-21 14:00 | 639229168243572685 |
|
5 ms | 121.194.2.55 |
| 42 | 2026-08-21 13:44 | 639229158599856475 |
|
239 ms | 121.194.2.55 |
| 41 | 2026-08-21 13:28 | 639229148998940902 |
|
3 ms | 121.194.2.55 |
| 40 | 2026-08-21 13:12 | 639229139276923594 |
|
2 ms | 121.194.2.55 |
| 39 | 2026-08-21 12:56 | 639229129709912394 |
|
515 ms | 121.194.2.55 |
| 38 | 2026-08-21 12:40 | 639229119801488500 |
|
525 ms | 121.194.2.55 |
| 37 | 2026-08-21 12:23 | 639229110135262458 |
|
505 ms | 121.194.2.55 |
| 36 | 2026-08-21 12:07 | 639229100336051392 |
|
704 ms | 121.194.2.55 |
| 35 | 2026-08-21 11:51 | 639229090641415626 |
|
248 ms | 121.194.2.55 |
| 34 | 2026-08-21 11:34 | 639229080702683947 |
|
5 ms | 121.194.2.55 |
| 33 | 2026-08-21 11:18 | 639229070601456699 |
|
252 ms | 121.194.2.55 |
| 32 | 2026-08-21 10:25 | 639229038947447232 |
|
4 ms | 121.194.2.55 |
| 31 | 2026-08-21 10:09 | 639229029268708773 |
|
4 ms | 121.194.2.55 |
| 30 | 2026-08-21 09:52 | 639229019647910603 |
|
530 ms | 121.194.2.55 |
| 29 | 2026-08-21 09:36 | 639229009983843738 |
|
330 ms | 121.194.2.55 |
| 28 | 2026-08-21 09:20 | 639229000203331882 |
|
535 ms | 121.194.2.55 |
| 27 | 2026-08-21 09:04 | 639228990302335999 |
|
573 ms | 121.194.2.55 |
| 26 | 2026-08-21 08:47 | 639228980567740722 |
|
1361 ms | 121.194.2.55 |
| 25 | 2026-08-21 08:31 | 639228970762445174 |
|
714 ms | 121.194.2.55 |
| 24 | 2026-08-21 08:15 | 639228961065054445 |
|
2304 ms | 121.194.2.55 |
| 23 | 2026-08-21 07:59 | 639228951224649885 |
|
3 ms | 121.194.2.55 |
| 22 | 2026-08-21 07:42 | 639228941303864592 |
|
4 ms | 121.194.2.55 |
| 21 | 2026-08-21 07:25 | 639228931191328583 |
|
1395 ms | 121.194.2.55 |
| 20 | 2026-08-21 06:32 | 639228899518173317 |
|
3 ms | 121.194.2.55 |
| 19 | 2026-08-21 06:16 | 639228889785027669 |
|
329 ms | 121.194.2.55 |
| 18 | 2026-08-21 06:00 | 639228880106330161 |
|
530 ms | 121.194.2.55 |
| 17 | 2026-08-21 05:44 | 639228870316184091 |
|
590 ms | 121.194.2.55 |
| 16 | 2026-08-21 05:27 | 639228860695366512 |
|
4 ms | 121.194.2.55 |
| 15 | 2026-08-21 05:12 | 639228851027209500 |
|
289 ms | 121.194.2.55 |
| 14 | 2026-08-21 04:55 | 639228841479265462 |
|
746 ms | 121.194.2.55 |
| 13 | 2026-08-21 04:39 | 639228831752962260 |
|
3 ms | 121.194.2.55 |
| 12 | 2026-08-21 04:23 | 639228821953295483 |
|
3 ms | 121.194.2.55 |
| 11 | 2026-08-21 04:07 | 639228812227429953 |
|
3 ms | 121.194.2.55 |
| 10 | 2026-08-21 03:51 | 639228802476107538 |
|
2 ms | 121.194.2.55 |
| 9 | 2026-08-21 03:34 | 639228792525492032 |
|
4 ms | 121.194.2.55 |
| 8 | 2026-08-21 02:42 | 639228761131421385 |
|
264 ms | 121.194.2.55 |
| 7 | 2026-08-21 02:26 | 639228751571206692 |
|
325 ms | 121.194.2.55 |
| 6 | 2026-08-21 02:09 | 639228741705571019 |
|
3 ms | 121.194.2.55 |
| 5 | 2026-08-21 01:53 | 639228731642208228 |
|
1313 ms | 121.194.2.55 |
| 4 | 2026-08-21 01:00 | 639228700387002072 |
|
3 ms | 121.194.2.55 |
| 3 | 2026-08-21 00:44 | 639228690742014433 |
|
4 ms | 121.194.2.55 |
| 2 | 2026-08-21 00:28 | 639228680877937122 |
|
285 ms | 121.194.2.55 |
| 1 | 2026-08-21 00:11 | 639228670775860800 |
|
285 ms | 121.194.2.55 |