History for dns1.sfc.edu.cn
Domain: sfc.edu.cn • Tracking since 2026-08-04 23:25 UTC
DNS response history for dns1.sfc.edu.cn
dns1.sfc.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 35 DNS check records, 35 successful responses, 0 failed responses, and 706 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.sfc.edu.cn.
Records on Selected Date
35
Historical checks stored for this nameserver on selected date
Average Latency
706 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-26 11:40
All timestamps shown in UTC
Latest Resolved IP on Selected Date
202.115.254.250
Most recently resolved hosting IP on selected date
Successful Responses
35
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.sfc.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 |
|---|---|---|---|---|---|
| 35 | 2026-08-26 11:40 | 639233403515141099 |
|
320 ms | 202.115.254.250 |
| 34 | 2026-08-26 10:45 | 639233370841350248 |
|
826 ms | 202.115.254.250 |
| 33 | 2026-08-26 10:28 | 639233360361507238 |
|
866 ms | 202.115.254.250 |
| 32 | 2026-08-26 10:11 | 639233350067824371 |
|
826 ms | 202.115.254.250 |
| 31 | 2026-08-26 09:54 | 639233339545274518 |
|
844 ms | 202.115.254.250 |
| 30 | 2026-08-26 09:36 | 639233329214918079 |
|
321 ms | 202.115.254.250 |
| 29 | 2026-08-26 09:19 | 639233318749762337 |
|
875 ms | 202.115.254.250 |
| 28 | 2026-08-26 09:01 | 639233308387917838 |
|
851 ms | 202.115.254.250 |
| 27 | 2026-08-26 08:44 | 639233297961740122 |
|
315 ms | 202.115.254.250 |
| 26 | 2026-08-26 08:27 | 639233287487159094 |
|
847 ms | 202.115.254.250 |
| 25 | 2026-08-26 08:09 | 639233276995531707 |
|
860 ms | 202.115.254.250 |
| 24 | 2026-08-26 07:52 | 639233266521568229 |
|
940 ms | 202.115.254.250 |
| 23 | 2026-08-26 07:34 | 639233256081047431 |
|
837 ms | 202.115.254.250 |
| 22 | 2026-08-26 06:40 | 639233223620132921 |
|
853 ms | 202.115.254.250 |
| 21 | 2026-08-26 06:23 | 639233213287814244 |
|
294 ms | 202.115.254.250 |
| 20 | 2026-08-26 06:06 | 639233202925983161 |
|
2357 ms | 202.115.254.250 |
| 19 | 2026-08-26 05:49 | 639233192644780696 |
|
820 ms | 202.115.254.250 |
| 18 | 2026-08-26 05:31 | 639233182401183833 |
|
1240 ms | 202.115.254.250 |
| 17 | 2026-08-26 05:14 | 639233172074181051 |
|
376 ms | 202.115.254.250 |
| 16 | 2026-08-26 04:57 | 639233161808421455 |
|
796 ms | 202.115.254.250 |
| 15 | 2026-08-26 04:40 | 639233151357344052 |
|
364 ms | 202.115.254.250 |
| 14 | 2026-08-26 04:22 | 639233141034116946 |
|
3 ms | 202.115.254.250 |
| 13 | 2026-08-26 04:05 | 639233130828334142 |
|
848 ms | 202.115.254.250 |
| 12 | 2026-08-26 03:48 | 639233120373450007 |
|
286 ms | 202.115.254.250 |
| 11 | 2026-08-26 03:31 | 639233110066216193 |
|
872 ms | 202.115.254.250 |
| 10 | 2026-08-26 02:38 | 639233078065410564 |
|
811 ms | 202.115.254.250 |
| 9 | 2026-08-26 02:20 | 639233067787457832 |
|
309 ms | 202.115.254.250 |
| 8 | 2026-08-26 02:03 | 639233057501801162 |
|
843 ms | 202.115.254.250 |
| 7 | 2026-08-26 01:46 | 639233047089431703 |
|
319 ms | 202.115.254.250 |
| 6 | 2026-08-26 01:29 | 639233036754790688 |
|
800 ms | 202.115.254.250 |
| 5 | 2026-08-26 01:12 | 639233026412602472 |
|
793 ms | 202.115.254.250 |
| 4 | 2026-08-26 00:54 | 639233016064066127 |
|
319 ms | 202.115.254.250 |
| 3 | 2026-08-26 00:37 | 639233005922655772 |
|
286 ms | 202.115.254.250 |
| 2 | 2026-08-26 00:20 | 639232995672256907 |
|
803 ms | 202.115.254.250 |
| 1 | 2026-08-26 00:03 | 639232985300872416 |
|
799 ms | 202.115.254.250 |