History for dns2.sfc.edu.cn
Domain: sfc.edu.cn • Tracking since 2026-08-04 23:25 UTC
DNS response history for dns2.sfc.edu.cn
dns2.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 2026-08-24. For this date, NameServerHistory found 47 DNS check records, 47 successful responses, 0 failed responses, and 493 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.sfc.edu.cn.
Records on Selected Date
47
Historical checks stored for this nameserver on selected date
Average Latency
493 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-24 20:14
All timestamps shown in UTC
Latest Resolved IP on Selected Date
202.115.254.251
Most recently resolved hosting IP on selected date
Successful Responses
47
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.sfc.edu.cn
Showing DNS history for 2026-08-24 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 |
|---|---|---|---|---|---|
| 47 | 2026-08-24 20:14 | 639231983967363696 |
|
797 ms | 202.115.254.251 |
| 46 | 2026-08-24 19:21 | 639231952257842845 |
|
806 ms | 202.115.254.251 |
| 45 | 2026-08-24 19:04 | 639231942277816756 |
|
837 ms | 202.115.254.251 |
| 44 | 2026-08-24 18:48 | 639231932094180724 |
|
293 ms | 202.115.254.251 |
| 43 | 2026-08-24 18:30 | 639231922041034838 |
|
556 ms | 202.115.254.251 |
| 42 | 2026-08-24 17:38 | 639231890488117536 |
|
3 ms | 202.115.254.251 |
| 41 | 2026-08-24 17:21 | 639231880574255543 |
|
830 ms | 202.115.254.251 |
| 40 | 2026-08-24 17:05 | 639231870418029045 |
|
296 ms | 202.115.254.251 |
| 39 | 2026-08-24 16:48 | 639231860258429562 |
|
793 ms | 202.115.254.251 |
| 38 | 2026-08-24 15:54 | 639231828211839931 |
|
3 ms | 202.115.254.251 |
| 37 | 2026-08-24 15:38 | 639231818080917481 |
|
293 ms | 202.115.254.251 |
| 36 | 2026-08-24 15:20 | 639231807961539652 |
|
597 ms | 202.115.254.251 |
| 35 | 2026-08-24 15:04 | 639231797631669865 |
|
1208 ms | 202.115.254.251 |
| 34 | 2026-08-24 14:10 | 639231765923559455 |
|
838 ms | 202.115.254.251 |
| 33 | 2026-08-24 13:54 | 639231755868832964 |
|
295 ms | 202.115.254.251 |
| 32 | 2026-08-24 13:37 | 639231745628278877 |
|
850 ms | 202.115.254.251 |
| 31 | 2026-08-24 13:20 | 639231735407682062 |
|
875 ms | 202.115.254.251 |
| 30 | 2026-08-24 12:27 | 639231703815441688 |
|
3 ms | 202.115.254.251 |
| 29 | 2026-08-24 12:10 | 639231693747052549 |
|
4 ms | 202.115.254.251 |
| 28 | 2026-08-24 11:53 | 639231683712487276 |
|
4 ms | 202.115.254.251 |
| 27 | 2026-08-24 11:36 | 639231673513573868 |
|
833 ms | 202.115.254.251 |
| 26 | 2026-08-24 10:43 | 639231641791249939 |
|
4 ms | 202.115.254.251 |
| 25 | 2026-08-24 10:27 | 639231631866211033 |
|
868 ms | 202.115.254.251 |
| 24 | 2026-08-24 10:10 | 639231621644955316 |
|
847 ms | 202.115.254.251 |
| 23 | 2026-08-24 09:53 | 639231611478799259 |
|
834 ms | 202.115.254.251 |
| 22 | 2026-08-24 09:00 | 639231579923718211 |
|
799 ms | 202.115.254.251 |
| 21 | 2026-08-24 08:44 | 639231569810702936 |
|
7 ms | 202.115.254.251 |
| 20 | 2026-08-24 08:27 | 639231559762411619 |
|
869 ms | 202.115.254.251 |
| 19 | 2026-08-24 08:10 | 639231549663595407 |
|
800 ms | 202.115.254.251 |
| 18 | 2026-08-24 07:17 | 639231518076817246 |
|
7 ms | 202.115.254.251 |
| 17 | 2026-08-24 07:01 | 639231508078650885 |
|
2 ms | 202.115.254.251 |
| 16 | 2026-08-24 06:44 | 639231498210697093 |
|
3 ms | 202.115.254.251 |
| 15 | 2026-08-24 06:27 | 639231488109699360 |
|
807 ms | 202.115.254.251 |
| 14 | 2026-08-24 05:35 | 639231456772510692 |
|
6 ms | 202.115.254.251 |
| 13 | 2026-08-24 05:19 | 639231447084631185 |
|
4 ms | 202.115.254.251 |
| 12 | 2026-08-24 05:02 | 639231437208519473 |
|
805 ms | 202.115.254.251 |
| 11 | 2026-08-24 04:46 | 639231427209627490 |
|
831 ms | 202.115.254.251 |
| 10 | 2026-08-24 03:53 | 639231395791246644 |
|
709 ms | 202.115.254.251 |
| 9 | 2026-08-24 03:37 | 639231386075551458 |
|
571 ms | 202.115.254.251 |
| 8 | 2026-08-24 03:21 | 639231376208713791 |
|
3 ms | 202.115.254.251 |
| 7 | 2026-08-24 03:04 | 639231366170589276 |
|
842 ms | 202.115.254.251 |
| 6 | 2026-08-24 02:12 | 639231334732159368 |
|
517 ms | 202.115.254.251 |
| 5 | 2026-08-24 01:55 | 639231325035670078 |
|
3 ms | 202.115.254.251 |
| 4 | 2026-08-24 01:39 | 639231315132253837 |
|
296 ms | 202.115.254.251 |
| 3 | 2026-08-24 01:22 | 639231305014280808 |
|
296 ms | 202.115.254.251 |
| 2 | 2026-08-24 00:30 | 639231273779380675 |
|
831 ms | 202.115.254.251 |
| 1 | 2026-08-24 00:14 | 639231264180839154 |
|
579 ms | 202.115.254.251 |