History for dns1.sdtbu.edu.cn
Domain: sdtbu.edu.cn • Tracking since 2026-08-04 23:25 UTC
DNS response history for dns1.sdtbu.edu.cn
dns1.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 2026-08-26. For this date, NameServerHistory found 49 DNS check records, 49 successful responses, 0 failed responses, and 965 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.sdtbu.edu.cn.
Records on Selected Date
49
Historical checks stored for this nameserver on selected date
Average Latency
965 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-26 16:22
All timestamps shown in UTC
Latest Resolved IP on Selected Date
202.194.104.1
Most recently resolved hosting IP on selected date
Successful Responses
49
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.sdtbu.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 |
|---|---|---|---|---|---|
| 49 | 2026-08-26 16:22 | 639233572000374575 |
|
824 ms | 202.194.104.1 |
| 48 | 2026-08-26 16:04 | 639233561188633861 |
|
246 ms | 202.194.104.1 |
| 47 | 2026-08-26 15:46 | 639233550544357027 |
|
698 ms | 202.194.104.1 |
| 46 | 2026-08-26 14:51 | 639233517966053117 |
|
243 ms | 202.194.104.1 |
| 45 | 2026-08-26 14:34 | 639233507603253585 |
|
253 ms | 202.194.104.1 |
| 44 | 2026-08-26 14:17 | 639233497229039167 |
|
754 ms | 202.194.104.1 |
| 43 | 2026-08-26 13:59 | 639233486864546406 |
|
1350 ms | 202.194.104.1 |
| 42 | 2026-08-26 13:42 | 639233476455174682 |
|
819 ms | 202.194.104.1 |
| 41 | 2026-08-26 13:25 | 639233466171592605 |
|
1901 ms | 202.194.104.1 |
| 40 | 2026-08-26 13:08 | 639233455747096265 |
|
250 ms | 202.194.104.1 |
| 39 | 2026-08-26 12:50 | 639233445367152284 |
|
755 ms | 202.194.104.1 |
| 38 | 2026-08-26 12:33 | 639233434974187439 |
|
242 ms | 202.194.104.1 |
| 37 | 2026-08-26 12:16 | 639233424567558554 |
|
247 ms | 202.194.104.1 |
| 36 | 2026-08-26 11:58 | 639233414056832719 |
|
832 ms | 202.194.104.1 |
| 35 | 2026-08-26 11:41 | 639233403515141099 |
|
1392 ms | 202.194.104.1 |
| 34 | 2026-08-26 10:46 | 639233370841350248 |
|
828 ms | 202.194.104.1 |
| 33 | 2026-08-26 10:29 | 639233360361507238 |
|
829 ms | 202.194.104.1 |
| 32 | 2026-08-26 10:11 | 639233350067824371 |
|
829 ms | 202.194.104.1 |
| 31 | 2026-08-26 09:54 | 639233339545274518 |
|
840 ms | 202.194.104.1 |
| 30 | 2026-08-26 09:37 | 639233329214918079 |
|
252 ms | 202.194.104.1 |
| 29 | 2026-08-26 09:19 | 639233318749762337 |
|
827 ms | 202.194.104.1 |
| 28 | 2026-08-26 09:02 | 639233308387917838 |
|
266 ms | 202.194.104.1 |
| 27 | 2026-08-26 08:45 | 639233297961740122 |
|
1948 ms | 202.194.104.1 |
| 26 | 2026-08-26 08:27 | 639233287487159094 |
|
1122 ms | 202.194.104.1 |
| 25 | 2026-08-26 08:10 | 639233276995531707 |
|
841 ms | 202.194.104.1 |
| 24 | 2026-08-26 07:52 | 639233266521568229 |
|
1922 ms | 202.194.104.1 |
| 23 | 2026-08-26 07:35 | 639233256081047431 |
|
797 ms | 202.194.104.1 |
| 22 | 2026-08-26 06:41 | 639233223620132921 |
|
1353 ms | 202.194.104.1 |
| 21 | 2026-08-26 06:23 | 639233213287814244 |
|
804 ms | 202.194.104.1 |
| 20 | 2026-08-26 06:06 | 639233202925983161 |
|
252 ms | 202.194.104.1 |
| 19 | 2026-08-26 05:49 | 639233192644780696 |
|
824 ms | 202.194.104.1 |
| 18 | 2026-08-26 05:32 | 639233182401183833 |
|
1275 ms | 202.194.104.1 |
| 17 | 2026-08-26 05:15 | 639233172074181051 |
|
1912 ms | 202.194.104.1 |
| 16 | 2026-08-26 04:57 | 639233161808421455 |
|
839 ms | 202.194.104.1 |
| 15 | 2026-08-26 04:40 | 639233151357344052 |
|
1367 ms | 202.194.104.1 |
| 14 | 2026-08-26 04:23 | 639233141034116946 |
|
239 ms | 202.194.104.1 |
| 13 | 2026-08-26 04:06 | 639233130828334142 |
|
2313 ms | 202.194.104.1 |
| 12 | 2026-08-26 03:49 | 639233120373450007 |
|
762 ms | 202.194.104.1 |
| 11 | 2026-08-26 03:31 | 639233110066216193 |
|
1939 ms | 202.194.104.1 |
| 10 | 2026-08-26 02:38 | 639233078065410564 |
|
1917 ms | 202.194.104.1 |
| 9 | 2026-08-26 02:21 | 639233067787457832 |
|
837 ms | 202.194.104.1 |
| 8 | 2026-08-26 02:04 | 639233057501801162 |
|
840 ms | 202.194.104.1 |
| 7 | 2026-08-26 01:47 | 639233047089431703 |
|
817 ms | 202.194.104.1 |
| 6 | 2026-08-26 01:29 | 639233036754790688 |
|
820 ms | 202.194.104.1 |
| 5 | 2026-08-26 01:12 | 639233026412602472 |
|
821 ms | 202.194.104.1 |
| 4 | 2026-08-26 00:55 | 639233016064066127 |
|
248 ms | 202.194.104.1 |
| 3 | 2026-08-26 00:38 | 639233005922655772 |
|
1272 ms | 202.194.104.1 |
| 2 | 2026-08-26 00:21 | 639232995672256907 |
|
1860 ms | 202.194.104.1 |
| 1 | 2026-08-26 00:04 | 639232985300872416 |
|
1853 ms | 202.194.104.1 |