History for dns1.sd.edu.cn
Domain: sd.edu.cn • Tracking since 2026-08-04 23:25 UTC
DNS response history for dns1.sd.edu.cn
dns1.sd.edu.cn 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 46 DNS check records, 46 successful responses, 0 failed responses, and 766 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 dns1.sd.edu.cn.
Records on Selected Date
46
Historical checks stored for this nameserver on selected date
Average Latency
766 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-26 14:51
All timestamps shown in UTC
Latest Resolved IP on Selected Date
202.194.97.150
Most recently resolved hosting IP on selected date
Successful Responses
46
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 dns1.sd.edu.cn
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 |
|---|---|---|---|---|---|
| 46 | 2026-08-26 14:51 | 639233517966053117 |
|
1155 ms | 202.194.97.150 |
| 45 | 2026-08-26 14:34 | 639233507603253585 |
|
3 ms | 202.194.97.150 |
| 44 | 2026-08-26 14:17 | 639233497229039167 |
|
7 ms | 202.194.97.150 |
| 43 | 2026-08-26 13:59 | 639233486864546406 |
|
5 ms | 202.194.97.150 |
| 42 | 2026-08-26 13:42 | 639233476455174682 |
|
767 ms | 202.194.97.150 |
| 41 | 2026-08-26 13:25 | 639233466171592605 |
|
1110 ms | 202.194.97.150 |
| 40 | 2026-08-26 13:08 | 639233455747096265 |
|
247 ms | 202.194.97.150 |
| 39 | 2026-08-26 12:50 | 639233445367152284 |
|
470 ms | 202.194.97.150 |
| 38 | 2026-08-26 12:33 | 639233434974187439 |
|
292 ms | 202.194.97.150 |
| 37 | 2026-08-26 12:16 | 639233424567558554 |
|
240 ms | 202.194.97.150 |
| 36 | 2026-08-26 11:58 | 639233414056832719 |
|
286 ms | 202.194.97.150 |
| 35 | 2026-08-26 11:41 | 639233403515141099 |
|
1545 ms | 202.194.97.150 |
| 34 | 2026-08-26 10:46 | 639233370841350248 |
|
784 ms | 202.194.97.150 |
| 33 | 2026-08-26 10:29 | 639233360361507238 |
|
1646 ms | 202.194.97.150 |
| 32 | 2026-08-26 10:11 | 639233350067824371 |
|
288 ms | 202.194.97.150 |
| 31 | 2026-08-26 09:54 | 639233339545274518 |
|
1519 ms | 202.194.97.150 |
| 30 | 2026-08-26 09:37 | 639233329214918079 |
|
1099 ms | 202.194.97.150 |
| 29 | 2026-08-26 09:20 | 639233318749762337 |
|
1644 ms | 202.194.97.150 |
| 28 | 2026-08-26 09:02 | 639233308387917838 |
|
286 ms | 202.194.97.150 |
| 27 | 2026-08-26 08:45 | 639233297961740122 |
|
806 ms | 202.194.97.150 |
| 26 | 2026-08-26 08:27 | 639233287487159094 |
|
1578 ms | 202.194.97.150 |
| 25 | 2026-08-26 08:10 | 639233276995531707 |
|
1646 ms | 202.194.97.150 |
| 24 | 2026-08-26 07:52 | 639233266521568229 |
|
1494 ms | 202.194.97.150 |
| 23 | 2026-08-26 07:35 | 639233256081047431 |
|
700 ms | 202.194.97.150 |
| 22 | 2026-08-26 06:41 | 639233223620132921 |
|
3 ms | 202.194.97.150 |
| 21 | 2026-08-26 06:24 | 639233213287814244 |
|
290 ms | 202.194.97.150 |
| 20 | 2026-08-26 06:06 | 639233202925983161 |
|
1642 ms | 202.194.97.150 |
| 19 | 2026-08-26 05:49 | 639233192644780696 |
|
681 ms | 202.194.97.150 |
| 18 | 2026-08-26 05:32 | 639233182401183833 |
|
1159 ms | 202.194.97.150 |
| 17 | 2026-08-26 05:15 | 639233172074181051 |
|
1156 ms | 202.194.97.150 |
| 16 | 2026-08-26 04:58 | 639233161808421455 |
|
1583 ms | 202.194.97.150 |
| 15 | 2026-08-26 04:40 | 639233151357344052 |
|
236 ms | 202.194.97.150 |
| 14 | 2026-08-26 04:23 | 639233141034116946 |
|
241 ms | 202.194.97.150 |
| 13 | 2026-08-26 04:06 | 639233130828334142 |
|
228 ms | 202.194.97.150 |
| 12 | 2026-08-26 03:49 | 639233120373450007 |
|
1587 ms | 202.194.97.150 |
| 11 | 2026-08-26 03:31 | 639233110066216193 |
|
1495 ms | 202.194.97.150 |
| 10 | 2026-08-26 02:38 | 639233078065410564 |
|
283 ms | 202.194.97.150 |
| 9 | 2026-08-26 02:21 | 639233067787457832 |
|
236 ms | 202.194.97.150 |
| 8 | 2026-08-26 02:04 | 639233057501801162 |
|
477 ms | 202.194.97.150 |
| 7 | 2026-08-26 01:47 | 639233047089431703 |
|
723 ms | 202.194.97.150 |
| 6 | 2026-08-26 01:29 | 639233036754790688 |
|
235 ms | 202.194.97.150 |
| 5 | 2026-08-26 01:12 | 639233026412602472 |
|
282 ms | 202.194.97.150 |
| 4 | 2026-08-26 00:55 | 639233016064066127 |
|
676 ms | 202.194.97.150 |
| 3 | 2026-08-26 00:38 | 639233005922655772 |
|
669 ms | 202.194.97.150 |
| 2 | 2026-08-26 00:21 | 639232995672256907 |
|
668 ms | 202.194.97.150 |
| 1 | 2026-08-26 00:04 | 639232985300872416 |
|
1071 ms | 202.194.97.150 |