History for dns2.sd.edu.cn
Domain: sd.edu.cn • Tracking since 2026-08-04 23:25 UTC
DNS response history for dns2.sd.edu.cn
dns2.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 2026-08-25. For this date, NameServerHistory found 37 DNS check records, 37 successful responses, 0 failed responses, and 807 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.sd.edu.cn.
Records on Selected Date
37
Historical checks stored for this nameserver on selected date
Average Latency
807 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-25 12:43
All timestamps shown in UTC
Latest Resolved IP on Selected Date
202.194.97.151
Most recently resolved hosting IP on selected date
Successful Responses
37
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.sd.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 |
|---|---|---|---|---|---|
| 37 | 2026-08-25 12:43 | 639232576780683689 |
|
233 ms | 202.194.97.151 |
| 36 | 2026-08-25 12:25 | 639232566381512620 |
|
1483 ms | 202.194.97.151 |
| 35 | 2026-08-25 12:08 | 639232556111768563 |
|
1503 ms | 202.194.97.151 |
| 34 | 2026-08-25 11:51 | 639232545839529039 |
|
1470 ms | 202.194.97.151 |
| 33 | 2026-08-25 11:34 | 639232535349285207 |
|
1613 ms | 202.194.97.151 |
| 32 | 2026-08-25 11:16 | 639232524938080723 |
|
1557 ms | 202.194.97.151 |
| 31 | 2026-08-25 10:23 | 639232492740373468 |
|
291 ms | 202.194.97.151 |
| 30 | 2026-08-25 10:05 | 639232482235303141 |
|
1967 ms | 202.194.97.151 |
| 29 | 2026-08-25 09:48 | 639232471861770303 |
|
1657 ms | 202.194.97.151 |
| 28 | 2026-08-25 09:31 | 639232461630217327 |
|
246 ms | 202.194.97.151 |
| 27 | 2026-08-25 09:14 | 639232451282965990 |
|
1234 ms | 202.194.97.151 |
| 26 | 2026-08-25 08:56 | 639232440814614938 |
|
1210 ms | 202.194.97.151 |
| 25 | 2026-08-25 08:39 | 639232430410720425 |
|
800 ms | 202.194.97.151 |
| 24 | 2026-08-25 08:21 | 639232420003096185 |
|
1219 ms | 202.194.97.151 |
| 23 | 2026-08-25 08:04 | 639232409467287444 |
|
1210 ms | 202.194.97.151 |
| 22 | 2026-08-25 07:47 | 639232399077195997 |
|
296 ms | 202.194.97.151 |
| 21 | 2026-08-25 07:29 | 639232388731528337 |
|
819 ms | 202.194.97.151 |
| 20 | 2026-08-25 07:12 | 639232378288598612 |
|
795 ms | 202.194.97.151 |
| 19 | 2026-08-25 06:18 | 639232346196373643 |
|
2 ms | 202.194.97.151 |
| 18 | 2026-08-25 06:01 | 639232336112370741 |
|
1091 ms | 202.194.97.151 |
| 17 | 2026-08-25 05:45 | 639232326146508970 |
|
714 ms | 202.194.97.151 |
| 16 | 2026-08-25 05:28 | 639232316189381720 |
|
3 ms | 202.194.97.151 |
| 15 | 2026-08-25 05:11 | 639232306217998913 |
|
4 ms | 202.194.97.151 |
| 14 | 2026-08-25 04:55 | 639232296255744174 |
|
248 ms | 202.194.97.151 |
| 13 | 2026-08-25 04:38 | 639232286095760789 |
|
1277 ms | 202.194.97.151 |
| 12 | 2026-08-25 04:21 | 639232276086186273 |
|
231 ms | 202.194.97.151 |
| 11 | 2026-08-25 04:04 | 639232265900986425 |
|
1212 ms | 202.194.97.151 |
| 10 | 2026-08-25 03:47 | 639232255723518075 |
|
3 ms | 202.194.97.151 |
| 9 | 2026-08-25 03:30 | 639232245484452890 |
|
1508 ms | 202.194.97.151 |
| 8 | 2026-08-25 03:13 | 639232235157175331 |
|
776 ms | 202.194.97.151 |
| 7 | 2026-08-25 02:20 | 639232203197189095 |
|
823 ms | 202.194.97.151 |
| 6 | 2026-08-25 02:03 | 639232192844564298 |
|
239 ms | 202.194.97.151 |
| 5 | 2026-08-25 01:46 | 639232182496008942 |
|
227 ms | 202.194.97.151 |
| 4 | 2026-08-25 01:28 | 639232172197053132 |
|
227 ms | 202.194.97.151 |
| 3 | 2026-08-25 00:35 | 639232140250307418 |
|
746 ms | 202.194.97.151 |
| 2 | 2026-08-25 00:18 | 639232129927860324 |
|
229 ms | 202.194.97.151 |
| 1 | 2026-08-25 00:01 | 639232119551972438 |
|
678 ms | 202.194.97.151 |