History for dns2.sdtbu.edu.cn
Domain: sdtbu.edu.cn • Tracking since 2026-08-04 23:25 UTC
DNS response history for dns2.sdtbu.edu.cn
dns2.sdtbu.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 43 DNS check records, 43 successful responses, 0 failed responses, and 826 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.sdtbu.edu.cn.
Records on Selected Date
43
Historical checks stored for this nameserver on selected date
Average Latency
826 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-25 14:26
All timestamps shown in UTC
Latest Resolved IP on Selected Date
202.194.104.2
Most recently resolved hosting IP on selected date
Successful Responses
43
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.sdtbu.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 |
|---|---|---|---|---|---|
| 43 | 2026-08-25 14:26 | 639232638994329666 |
|
818 ms | 202.194.104.2 |
| 42 | 2026-08-25 14:09 | 639232628614783237 |
|
720 ms | 202.194.104.2 |
| 41 | 2026-08-25 13:52 | 639232618360728578 |
|
837 ms | 202.194.104.2 |
| 40 | 2026-08-25 13:35 | 639232608016476376 |
|
830 ms | 202.194.104.2 |
| 39 | 2026-08-25 13:17 | 639232597643611557 |
|
3 ms | 202.194.104.2 |
| 38 | 2026-08-25 13:00 | 639232587225721862 |
|
1875 ms | 202.194.104.2 |
| 37 | 2026-08-25 12:43 | 639232576780683689 |
|
826 ms | 202.194.104.2 |
| 36 | 2026-08-25 12:25 | 639232566381512620 |
|
834 ms | 202.194.104.2 |
| 35 | 2026-08-25 12:08 | 639232556111768563 |
|
5 ms | 202.194.104.2 |
| 34 | 2026-08-25 11:51 | 639232545839529039 |
|
6 ms | 202.194.104.2 |
| 33 | 2026-08-25 11:34 | 639232535349285207 |
|
3 ms | 202.194.104.2 |
| 32 | 2026-08-25 11:16 | 639232524938080723 |
|
6 ms | 202.194.104.2 |
| 31 | 2026-08-25 10:22 | 639232492740373468 |
|
1337 ms | 202.194.104.2 |
| 30 | 2026-08-25 10:05 | 639232482235303141 |
|
1878 ms | 202.194.104.2 |
| 29 | 2026-08-25 09:48 | 639232471861770303 |
|
831 ms | 202.194.104.2 |
| 28 | 2026-08-25 09:31 | 639232461630217327 |
|
825 ms | 202.194.104.2 |
| 27 | 2026-08-25 09:13 | 639232451282965990 |
|
1927 ms | 202.194.104.2 |
| 26 | 2026-08-25 08:56 | 639232440814614938 |
|
1948 ms | 202.194.104.2 |
| 25 | 2026-08-25 08:39 | 639232430410720425 |
|
1068 ms | 202.194.104.2 |
| 24 | 2026-08-25 08:21 | 639232420003096185 |
|
791 ms | 202.194.104.2 |
| 23 | 2026-08-25 08:04 | 639232409467287444 |
|
839 ms | 202.194.104.2 |
| 22 | 2026-08-25 07:47 | 639232399077195997 |
|
1312 ms | 202.194.104.2 |
| 21 | 2026-08-25 07:29 | 639232388731528337 |
|
1303 ms | 202.194.104.2 |
| 20 | 2026-08-25 07:12 | 639232378288598612 |
|
1922 ms | 202.194.104.2 |
| 19 | 2026-08-25 06:18 | 639232346196373643 |
|
3 ms | 202.194.104.2 |
| 18 | 2026-08-25 06:01 | 639232336112370741 |
|
2 ms | 202.194.104.2 |
| 17 | 2026-08-25 05:44 | 639232326146508970 |
|
2 ms | 202.194.104.2 |
| 16 | 2026-08-25 05:28 | 639232316189381720 |
|
2 ms | 202.194.104.2 |
| 15 | 2026-08-25 05:11 | 639232306217998913 |
|
5 ms | 202.194.104.2 |
| 14 | 2026-08-25 04:55 | 639232296255744174 |
|
828 ms | 202.194.104.2 |
| 13 | 2026-08-25 04:38 | 639232286095760789 |
|
3 ms | 202.194.104.2 |
| 12 | 2026-08-25 04:21 | 639232276086186273 |
|
827 ms | 202.194.104.2 |
| 11 | 2026-08-25 04:04 | 639232265900986425 |
|
1856 ms | 202.194.104.2 |
| 10 | 2026-08-25 03:47 | 639232255723518075 |
|
829 ms | 202.194.104.2 |
| 9 | 2026-08-25 03:30 | 639232245484452890 |
|
247 ms | 202.194.104.2 |
| 8 | 2026-08-25 03:13 | 639232235157175331 |
|
1869 ms | 202.194.104.2 |
| 7 | 2026-08-25 02:20 | 639232203197189095 |
|
830 ms | 202.194.104.2 |
| 6 | 2026-08-25 02:03 | 639232192844564298 |
|
1633 ms | 202.194.104.2 |
| 5 | 2026-08-25 01:45 | 639232182496008942 |
|
817 ms | 202.194.104.2 |
| 4 | 2026-08-25 01:28 | 639232172197053132 |
|
239 ms | 202.194.104.2 |
| 3 | 2026-08-25 00:35 | 639232140250307418 |
|
1270 ms | 202.194.104.2 |
| 2 | 2026-08-25 00:18 | 639232129927860324 |
|
245 ms | 202.194.104.2 |
| 1 | 2026-08-25 00:01 | 639232119551972438 |
|
1283 ms | 202.194.104.2 |