History for ns2.51cdn.com
Domain: 51cdn.com • Tracking since 2026-08-04 23:25 UTC
DNS response history for ns2.51cdn.com
ns2.51cdn.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 2026-08-26. For this date, NameServerHistory found 49 DNS check records, 49 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 ns2.51cdn.com.
Records on Selected Date
49
Historical checks stored for this nameserver on selected date
Average Latency
551 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-26 16:21
All timestamps shown in UTC
Latest Resolved IP on Selected Date
210.192.121.162
Most recently resolved hosting IP on selected date
Successful Responses
49
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 ns2.51cdn.com
Showing DNS history for 2026-08-26 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 |
|---|---|---|---|---|---|
| 49 | 2026-08-26 16:21 | 639233572000374575 |
|
897 ms | 210.192.121.162 |
| 48 | 2026-08-26 16:03 | 639233561188633861 |
|
550 ms | 210.192.121.162 |
| 47 | 2026-08-26 15:45 | 639233550544357027 |
|
539 ms | 210.192.121.162 |
| 46 | 2026-08-26 14:51 | 639233517966053117 |
|
1068 ms | 210.192.121.162 |
| 45 | 2026-08-26 14:33 | 639233507603253585 |
|
480 ms | 210.192.121.162 |
| 44 | 2026-08-26 14:16 | 639233497229039167 |
|
530 ms | 210.192.121.162 |
| 43 | 2026-08-26 13:59 | 639233486864546406 |
|
485 ms | 210.192.121.162 |
| 42 | 2026-08-26 13:42 | 639233476455174682 |
|
547 ms | 210.192.121.162 |
| 41 | 2026-08-26 13:24 | 639233466171592605 |
|
506 ms | 210.192.121.162 |
| 40 | 2026-08-26 13:07 | 639233455747096265 |
|
507 ms | 210.192.121.162 |
| 39 | 2026-08-26 12:50 | 639233445367152284 |
|
907 ms | 210.192.121.162 |
| 38 | 2026-08-26 12:32 | 639233434974187439 |
|
520 ms | 210.192.121.162 |
| 37 | 2026-08-26 12:15 | 639233424567558554 |
|
530 ms | 210.192.121.162 |
| 36 | 2026-08-26 11:58 | 639233414056832719 |
|
528 ms | 210.192.121.162 |
| 35 | 2026-08-26 11:40 | 639233403515141099 |
|
508 ms | 210.192.121.162 |
| 34 | 2026-08-26 10:45 | 639233370841350248 |
|
452 ms | 210.192.121.162 |
| 33 | 2026-08-26 10:28 | 639233360361507238 |
|
421 ms | 210.192.121.162 |
| 32 | 2026-08-26 10:11 | 639233350067824371 |
|
433 ms | 210.192.121.162 |
| 31 | 2026-08-26 09:54 | 639233339545274518 |
|
580 ms | 210.192.121.162 |
| 30 | 2026-08-26 09:36 | 639233329214918079 |
|
515 ms | 210.192.121.162 |
| 29 | 2026-08-26 09:19 | 639233318749762337 |
|
641 ms | 210.192.121.162 |
| 28 | 2026-08-26 09:01 | 639233308387917838 |
|
504 ms | 210.192.121.162 |
| 27 | 2026-08-26 08:44 | 639233297961740122 |
|
517 ms | 210.192.121.162 |
| 26 | 2026-08-26 08:27 | 639233287487159094 |
|
544 ms | 210.192.121.162 |
| 25 | 2026-08-26 08:09 | 639233276995531707 |
|
864 ms | 210.192.121.162 |
| 24 | 2026-08-26 07:52 | 639233266521568229 |
|
558 ms | 210.192.121.162 |
| 23 | 2026-08-26 07:34 | 639233256081047431 |
|
852 ms | 210.192.121.162 |
| 22 | 2026-08-26 06:40 | 639233223620132921 |
|
546 ms | 210.192.121.162 |
| 21 | 2026-08-26 06:23 | 639233213287814244 |
|
473 ms | 210.192.121.162 |
| 20 | 2026-08-26 06:06 | 639233202925983161 |
|
539 ms | 210.192.121.162 |
| 19 | 2026-08-26 05:48 | 639233192644780696 |
|
461 ms | 210.192.121.162 |
| 18 | 2026-08-26 05:31 | 639233182401183833 |
|
591 ms | 210.192.121.162 |
| 17 | 2026-08-26 05:14 | 639233172074181051 |
|
477 ms | 210.192.121.162 |
| 16 | 2026-08-26 04:57 | 639233161808421455 |
|
574 ms | 210.192.121.162 |
| 15 | 2026-08-26 04:40 | 639233151357344052 |
|
530 ms | 210.192.121.162 |
| 14 | 2026-08-26 04:22 | 639233141034116946 |
|
495 ms | 210.192.121.162 |
| 13 | 2026-08-26 04:05 | 639233130828334142 |
|
441 ms | 210.192.121.162 |
| 12 | 2026-08-26 03:48 | 639233120373450007 |
|
487 ms | 210.192.121.162 |
| 11 | 2026-08-26 03:31 | 639233110066216193 |
|
487 ms | 210.192.121.162 |
| 10 | 2026-08-26 02:38 | 639233078065410564 |
|
463 ms | 210.192.121.162 |
| 9 | 2026-08-26 02:20 | 639233067787457832 |
|
507 ms | 210.192.121.162 |
| 8 | 2026-08-26 02:03 | 639233057501801162 |
|
523 ms | 210.192.121.162 |
| 7 | 2026-08-26 01:46 | 639233047089431703 |
|
479 ms | 210.192.121.162 |
| 6 | 2026-08-26 01:29 | 639233036754790688 |
|
541 ms | 210.192.121.162 |
| 5 | 2026-08-26 01:12 | 639233026412602472 |
|
488 ms | 210.192.121.162 |
| 4 | 2026-08-26 00:54 | 639233016064066127 |
|
452 ms | 210.192.121.162 |
| 3 | 2026-08-26 00:37 | 639233005922655772 |
|
483 ms | 210.192.121.162 |
| 2 | 2026-08-26 00:20 | 639232995672256907 |
|
474 ms | 210.192.121.162 |
| 1 | 2026-08-26 00:03 | 639232985300872416 |
|
491 ms | 210.192.121.162 |