History for ns2.cpu.edu.cn
Domain: cpu.edu.cn • Tracking since 2026-08-04 23:25 UTC
DNS response history for ns2.cpu.edu.cn
ns2.cpu.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 32 DNS check records, 32 successful responses, 0 failed responses, and 290 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.cpu.edu.cn.
Records on Selected Date
32
Historical checks stored for this nameserver on selected date
Average Latency
290 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-25 11:31
All timestamps shown in UTC
Latest Resolved IP on Selected Date
202.119.189.100
Most recently resolved hosting IP on selected date
Successful Responses
32
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.cpu.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 |
|---|---|---|---|---|---|
| 32 | 2026-08-25 11:31 | 639232535349285207 |
|
298 ms | 202.119.189.100 |
| 31 | 2026-08-25 11:13 | 639232524938080723 |
|
296 ms | 202.119.189.100 |
| 30 | 2026-08-25 10:19 | 639232492740373468 |
|
291 ms | 202.119.189.100 |
| 29 | 2026-08-25 10:02 | 639232482235303141 |
|
298 ms | 202.119.189.100 |
| 28 | 2026-08-25 09:45 | 639232471861770303 |
|
307 ms | 202.119.189.100 |
| 27 | 2026-08-25 09:28 | 639232461630217327 |
|
800 ms | 202.119.189.100 |
| 26 | 2026-08-25 09:10 | 639232451282965990 |
|
30 ms | 202.119.189.100 |
| 25 | 2026-08-25 08:53 | 639232440814614938 |
|
309 ms | 202.119.189.100 |
| 24 | 2026-08-25 08:36 | 639232430410720425 |
|
300 ms | 202.119.189.100 |
| 23 | 2026-08-25 08:18 | 639232420003096185 |
|
9 ms | 202.119.189.100 |
| 22 | 2026-08-25 08:01 | 639232409467287444 |
|
870 ms | 202.119.189.100 |
| 21 | 2026-08-25 07:43 | 639232399077195997 |
|
301 ms | 202.119.189.100 |
| 20 | 2026-08-25 07:26 | 639232388731528337 |
|
295 ms | 202.119.189.100 |
| 19 | 2026-08-25 07:09 | 639232378288598612 |
|
290 ms | 202.119.189.100 |
| 18 | 2026-08-25 06:15 | 639232346196373643 |
|
2 ms | 202.119.189.100 |
| 17 | 2026-08-25 05:58 | 639232336112370741 |
|
294 ms | 202.119.189.100 |
| 16 | 2026-08-25 05:42 | 639232326146508970 |
|
291 ms | 202.119.189.100 |
| 15 | 2026-08-25 05:25 | 639232316189381720 |
|
4 ms | 202.119.189.100 |
| 14 | 2026-08-25 05:08 | 639232306217998913 |
|
3 ms | 202.119.189.100 |
| 13 | 2026-08-25 04:52 | 639232296255744174 |
|
7 ms | 202.119.189.100 |
| 12 | 2026-08-25 04:35 | 639232286095760789 |
|
3 ms | 202.119.189.100 |
| 11 | 2026-08-25 04:18 | 639232276086186273 |
|
290 ms | 202.119.189.100 |
| 10 | 2026-08-25 04:01 | 639232265900986425 |
|
294 ms | 202.119.189.100 |
| 9 | 2026-08-25 03:44 | 639232255723518075 |
|
292 ms | 202.119.189.100 |
| 8 | 2026-08-25 03:27 | 639232245484452890 |
|
288 ms | 202.119.189.100 |
| 7 | 2026-08-25 03:10 | 639232235157175331 |
|
288 ms | 202.119.189.100 |
| 6 | 2026-08-25 02:17 | 639232203197189095 |
|
308 ms | 202.119.189.100 |
| 5 | 2026-08-25 02:00 | 639232192844564298 |
|
343 ms | 202.119.189.100 |
| 4 | 2026-08-25 01:43 | 639232182496008942 |
|
291 ms | 202.119.189.100 |
| 3 | 2026-08-25 01:25 | 639232172197053132 |
|
287 ms | 202.119.189.100 |
| 2 | 2026-08-25 00:32 | 639232140250307418 |
|
729 ms | 202.119.189.100 |
| 1 | 2026-08-25 00:15 | 639232129927860324 |
|
567 ms | 202.119.189.100 |