History for dns2.sdada.edu.cn
Domain: sdada.edu.cn • Tracking since 2026-08-04 23:25 UTC
DNS response history for dns2.sdada.edu.cn
dns2.sdada.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 2026-08-25. For this date, NameServerHistory found 40 DNS check records, 40 successful responses, 0 failed responses, and 343 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 dns2.sdada.edu.cn.
Records on Selected Date
40
Historical checks stored for this nameserver on selected date
Average Latency
343 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-25 13:50
All timestamps shown in UTC
Latest Resolved IP on Selected Date
221.214.14.221
Most recently resolved hosting IP on selected date
Successful Responses
40
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 dns2.sdada.edu.cn
Showing DNS history for 2026-08-25 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 |
|---|---|---|---|---|---|
| 40 | 2026-08-25 13:50 | 639232618360728578 |
|
242 ms | 221.214.14.221 |
| 39 | 2026-08-25 13:33 | 639232608016476376 |
|
282 ms | 221.214.14.221 |
| 38 | 2026-08-25 13:16 | 639232597643611557 |
|
278 ms | 221.214.14.221 |
| 37 | 2026-08-25 12:59 | 639232587225721862 |
|
262 ms | 221.214.14.221 |
| 36 | 2026-08-25 12:41 | 639232576780683689 |
|
285 ms | 221.214.14.221 |
| 35 | 2026-08-25 12:24 | 639232566381512620 |
|
253 ms | 221.214.14.221 |
| 34 | 2026-08-25 12:07 | 639232556111768563 |
|
287 ms | 221.214.14.221 |
| 33 | 2026-08-25 11:50 | 639232545839529039 |
|
279 ms | 221.214.14.221 |
| 32 | 2026-08-25 11:32 | 639232535349285207 |
|
254 ms | 221.214.14.221 |
| 31 | 2026-08-25 11:15 | 639232524938080723 |
|
270 ms | 221.214.14.221 |
| 30 | 2026-08-25 10:21 | 639232492740373468 |
|
5 ms | 221.214.14.221 |
| 29 | 2026-08-25 10:04 | 639232482235303141 |
|
3 ms | 221.214.14.221 |
| 28 | 2026-08-25 09:46 | 639232471861770303 |
|
497 ms | 221.214.14.221 |
| 27 | 2026-08-25 09:29 | 639232461630217327 |
|
271 ms | 221.214.14.221 |
| 26 | 2026-08-25 09:12 | 639232451282965990 |
|
897 ms | 221.214.14.221 |
| 25 | 2026-08-25 08:55 | 639232440814614938 |
|
776 ms | 221.214.14.221 |
| 24 | 2026-08-25 08:37 | 639232430410720425 |
|
840 ms | 221.214.14.221 |
| 23 | 2026-08-25 08:20 | 639232420003096185 |
|
267 ms | 221.214.14.221 |
| 22 | 2026-08-25 08:03 | 639232409467287444 |
|
272 ms | 221.214.14.221 |
| 21 | 2026-08-25 07:45 | 639232399077195997 |
|
2249 ms | 221.214.14.221 |
| 20 | 2026-08-25 07:28 | 639232388731528337 |
|
274 ms | 221.214.14.221 |
| 19 | 2026-08-25 07:10 | 639232378288598612 |
|
810 ms | 221.214.14.221 |
| 18 | 2026-08-25 06:17 | 639232346196373643 |
|
803 ms | 221.214.14.221 |
| 17 | 2026-08-25 06:00 | 639232336112370741 |
|
4 ms | 221.214.14.221 |
| 16 | 2026-08-25 05:43 | 639232326146508970 |
|
2 ms | 221.214.14.221 |
| 15 | 2026-08-25 05:27 | 639232316189381720 |
|
769 ms | 221.214.14.221 |
| 14 | 2026-08-25 05:10 | 639232306217998913 |
|
3 ms | 221.214.14.221 |
| 13 | 2026-08-25 04:53 | 639232296255744174 |
|
3 ms | 221.214.14.221 |
| 12 | 2026-08-25 04:37 | 639232286095760789 |
|
2 ms | 221.214.14.221 |
| 11 | 2026-08-25 04:20 | 639232276086186273 |
|
314 ms | 221.214.14.221 |
| 10 | 2026-08-25 04:03 | 639232265900986425 |
|
302 ms | 221.214.14.221 |
| 9 | 2026-08-25 03:46 | 639232255723518075 |
|
4 ms | 221.214.14.221 |
| 8 | 2026-08-25 03:29 | 639232245484452890 |
|
2 ms | 221.214.14.221 |
| 7 | 2026-08-25 03:12 | 639232235157175331 |
|
4 ms | 221.214.14.221 |
| 6 | 2026-08-25 02:18 | 639232203197189095 |
|
821 ms | 221.214.14.221 |
| 5 | 2026-08-25 02:01 | 639232192844564298 |
|
3 ms | 221.214.14.221 |
| 4 | 2026-08-25 01:44 | 639232182496008942 |
|
806 ms | 221.214.14.221 |
| 3 | 2026-08-25 01:27 | 639232172197053132 |
|
8 ms | 221.214.14.221 |
| 2 | 2026-08-25 00:33 | 639232140250307418 |
|
2 ms | 221.214.14.221 |
| 1 | 2026-08-25 00:17 | 639232129927860324 |
|
3 ms | 221.214.14.221 |