History for dns1.siso.edu.cn
Domain: siso.edu.cn • Tracking since 2026-08-04 23:25 UTC
DNS response history for dns1.siso.edu.cn
dns1.siso.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 46 DNS check records, 46 successful responses, 0 failed responses, and 1298 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.siso.edu.cn.
Records on Selected Date
46
Historical checks stored for this nameserver on selected date
Average Latency
1298 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-26 14:52
All timestamps shown in UTC
Latest Resolved IP on Selected Date
42.247.18.2
Most recently resolved hosting IP on selected date
Successful Responses
46
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.siso.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 |
|---|---|---|---|---|---|
| 46 | 2026-08-26 14:52 | 639233517966053117 |
|
1353 ms | 42.247.18.2 |
| 45 | 2026-08-26 14:34 | 639233507603253585 |
|
5 ms | 42.247.18.2 |
| 44 | 2026-08-26 14:17 | 639233497229039167 |
|
2307 ms | 42.247.18.2 |
| 43 | 2026-08-26 14:00 | 639233486864546406 |
|
243 ms | 42.247.18.2 |
| 42 | 2026-08-26 13:43 | 639233476455174682 |
|
1376 ms | 42.247.18.2 |
| 41 | 2026-08-26 13:25 | 639233466171592605 |
|
2742 ms | 42.247.18.2 |
| 40 | 2026-08-26 13:08 | 639233455747096265 |
|
1376 ms | 42.247.18.2 |
| 39 | 2026-08-26 12:51 | 639233445367152284 |
|
1788 ms | 42.247.18.2 |
| 38 | 2026-08-26 12:33 | 639233434974187439 |
|
1340 ms | 42.247.18.2 |
| 37 | 2026-08-26 12:16 | 639233424567558554 |
|
1323 ms | 42.247.18.2 |
| 36 | 2026-08-26 11:59 | 639233414056832719 |
|
1581 ms | 42.247.18.2 |
| 35 | 2026-08-26 11:41 | 639233403515141099 |
|
1340 ms | 42.247.18.2 |
| 34 | 2026-08-26 10:46 | 639233370841350248 |
|
2284 ms | 42.247.18.2 |
| 33 | 2026-08-26 10:29 | 639233360361507238 |
|
1332 ms | 42.247.18.2 |
| 32 | 2026-08-26 10:12 | 639233350067824371 |
|
1592 ms | 42.247.18.2 |
| 31 | 2026-08-26 09:55 | 639233339545274518 |
|
1392 ms | 42.247.18.2 |
| 30 | 2026-08-26 09:37 | 639233329214918079 |
|
1388 ms | 42.247.18.2 |
| 29 | 2026-08-26 09:20 | 639233318749762337 |
|
241 ms | 42.247.18.2 |
| 28 | 2026-08-26 09:02 | 639233308387917838 |
|
247 ms | 42.247.18.2 |
| 27 | 2026-08-26 08:45 | 639233297961740122 |
|
1821 ms | 42.247.18.2 |
| 26 | 2026-08-26 08:28 | 639233287487159094 |
|
1796 ms | 42.247.18.2 |
| 25 | 2026-08-26 08:10 | 639233276995531707 |
|
1368 ms | 42.247.18.2 |
| 24 | 2026-08-26 07:53 | 639233266521568229 |
|
1380 ms | 42.247.18.2 |
| 23 | 2026-08-26 07:35 | 639233256081047431 |
|
1381 ms | 42.247.18.2 |
| 22 | 2026-08-26 06:41 | 639233223620132921 |
|
258 ms | 42.247.18.2 |
| 21 | 2026-08-26 06:24 | 639233213287814244 |
|
2449 ms | 42.247.18.2 |
| 20 | 2026-08-26 06:07 | 639233202925983161 |
|
1322 ms | 42.247.18.2 |
| 19 | 2026-08-26 05:49 | 639233192644780696 |
|
1363 ms | 42.247.18.2 |
| 18 | 2026-08-26 05:32 | 639233182401183833 |
|
1282 ms | 42.247.18.2 |
| 17 | 2026-08-26 05:15 | 639233172074181051 |
|
1285 ms | 42.247.18.2 |
| 16 | 2026-08-26 04:58 | 639233161808421455 |
|
1319 ms | 42.247.18.2 |
| 15 | 2026-08-26 04:41 | 639233151357344052 |
|
1351 ms | 42.247.18.2 |
| 14 | 2026-08-26 04:23 | 639233141034116946 |
|
1283 ms | 42.247.18.2 |
| 13 | 2026-08-26 04:06 | 639233130828334142 |
|
1288 ms | 42.247.18.2 |
| 12 | 2026-08-26 03:49 | 639233120373450007 |
|
1375 ms | 42.247.18.2 |
| 11 | 2026-08-26 03:32 | 639233110066216193 |
|
1371 ms | 42.247.18.2 |
| 10 | 2026-08-26 02:38 | 639233078065410564 |
|
1702 ms | 42.247.18.2 |
| 9 | 2026-08-26 02:21 | 639233067787457832 |
|
741 ms | 42.247.18.2 |
| 8 | 2026-08-26 02:04 | 639233057501801162 |
|
744 ms | 42.247.18.2 |
| 7 | 2026-08-26 01:47 | 639233047089431703 |
|
240 ms | 42.247.18.2 |
| 6 | 2026-08-26 01:30 | 639233036754790688 |
|
238 ms | 42.247.18.2 |
| 5 | 2026-08-26 01:12 | 639233026412602472 |
|
1822 ms | 42.247.18.2 |
| 4 | 2026-08-26 00:55 | 639233016064066127 |
|
1367 ms | 42.247.18.2 |
| 3 | 2026-08-26 00:38 | 639233005922655772 |
|
740 ms | 42.247.18.2 |
| 2 | 2026-08-26 00:21 | 639232995672256907 |
|
1349 ms | 42.247.18.2 |
| 1 | 2026-08-26 00:04 | 639232985300872416 |
|
1806 ms | 42.247.18.2 |