History for ns4.buct.edu.cn
Domain: buct.edu.cn • Tracking since 2026-08-04 23:25 UTC
DNS response history for ns4.buct.edu.cn
ns4.buct.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 57 DNS check records, 57 successful responses, 0 failed responses, and 280 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 ns4.buct.edu.cn.
Records on Selected Date
57
Historical checks stored for this nameserver on selected date
Average Latency
280 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-25 19:55
All timestamps shown in UTC
Latest Resolved IP on Selected Date
222.199.255.101
Most recently resolved hosting IP on selected date
Successful Responses
57
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 ns4.buct.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 |
|---|---|---|---|---|---|
| 57 | 2026-08-25 19:55 | 639232838596478500 |
|
222 ms | 222.199.255.101 |
| 56 | 2026-08-25 19:38 | 639232828175327683 |
|
223 ms | 222.199.255.101 |
| 55 | 2026-08-25 19:20 | 639232817798330473 |
|
223 ms | 222.199.255.101 |
| 54 | 2026-08-25 18:26 | 639232785462407552 |
|
225 ms | 222.199.255.101 |
| 53 | 2026-08-25 18:09 | 639232775177487032 |
|
275 ms | 222.199.255.101 |
| 52 | 2026-08-25 17:52 | 639232764991087115 |
|
222 ms | 222.199.255.101 |
| 51 | 2026-08-25 17:35 | 639232754842971478 |
|
479 ms | 222.199.255.101 |
| 50 | 2026-08-25 17:18 | 639232744455159107 |
|
8 ms | 222.199.255.101 |
| 49 | 2026-08-25 17:01 | 639232734145178231 |
|
220 ms | 222.199.255.101 |
| 48 | 2026-08-25 16:44 | 639232723827874402 |
|
222 ms | 222.199.255.101 |
| 47 | 2026-08-25 16:27 | 639232713533011892 |
|
221 ms | 222.199.255.101 |
| 46 | 2026-08-25 16:09 | 639232703065318207 |
|
229 ms | 222.199.255.101 |
| 45 | 2026-08-25 15:52 | 639232692629559470 |
|
219 ms | 222.199.255.101 |
| 44 | 2026-08-25 15:34 | 639232682238836475 |
|
4 ms | 222.199.255.101 |
| 43 | 2026-08-25 15:17 | 639232671787004306 |
|
223 ms | 222.199.255.101 |
| 42 | 2026-08-25 14:22 | 639232638994329666 |
|
222 ms | 222.199.255.101 |
| 41 | 2026-08-25 14:05 | 639232628614783237 |
|
3 ms | 222.199.255.101 |
| 40 | 2026-08-25 13:48 | 639232618360728578 |
|
3 ms | 222.199.255.101 |
| 39 | 2026-08-25 13:31 | 639232608016476376 |
|
238 ms | 222.199.255.101 |
| 38 | 2026-08-25 13:13 | 639232597643611557 |
|
223 ms | 222.199.255.101 |
| 37 | 2026-08-25 12:56 | 639232587225721862 |
|
224 ms | 222.199.255.101 |
| 36 | 2026-08-25 12:39 | 639232576780683689 |
|
4 ms | 222.199.255.101 |
| 35 | 2026-08-25 12:21 | 639232566381512620 |
|
4 ms | 222.199.255.101 |
| 34 | 2026-08-25 12:04 | 639232556111768563 |
|
237 ms | 222.199.255.101 |
| 33 | 2026-08-25 11:47 | 639232545839529039 |
|
240 ms | 222.199.255.101 |
| 32 | 2026-08-25 11:30 | 639232535349285207 |
|
222 ms | 222.199.255.101 |
| 31 | 2026-08-25 11:12 | 639232524938080723 |
|
221 ms | 222.199.255.101 |
| 30 | 2026-08-25 10:19 | 639232492740373468 |
|
223 ms | 222.199.255.101 |
| 29 | 2026-08-25 10:01 | 639232482235303141 |
|
225 ms | 222.199.255.101 |
| 28 | 2026-08-25 09:44 | 639232471861770303 |
|
242 ms | 222.199.255.101 |
| 27 | 2026-08-25 09:27 | 639232461630217327 |
|
279 ms | 222.199.255.101 |
| 26 | 2026-08-25 09:10 | 639232451282965990 |
|
4 ms | 222.199.255.101 |
| 25 | 2026-08-25 08:52 | 639232440814614938 |
|
2008 ms | 222.199.255.101 |
| 24 | 2026-08-25 08:35 | 639232430410720425 |
|
235 ms | 222.199.255.101 |
| 23 | 2026-08-25 08:18 | 639232420003096185 |
|
34 ms | 222.199.255.101 |
| 22 | 2026-08-25 08:00 | 639232409467287444 |
|
2031 ms | 222.199.255.101 |
| 21 | 2026-08-25 07:43 | 639232399077195997 |
|
2 ms | 222.199.255.101 |
| 20 | 2026-08-25 07:25 | 639232388731528337 |
|
221 ms | 222.199.255.101 |
| 19 | 2026-08-25 07:08 | 639232378288598612 |
|
222 ms | 222.199.255.101 |
| 18 | 2026-08-25 06:14 | 639232346196373643 |
|
3 ms | 222.199.255.101 |
| 17 | 2026-08-25 05:57 | 639232336112370741 |
|
219 ms | 222.199.255.101 |
| 16 | 2026-08-25 05:41 | 639232326146508970 |
|
10 ms | 222.199.255.101 |
| 15 | 2026-08-25 05:24 | 639232316189381720 |
|
4 ms | 222.199.255.101 |
| 14 | 2026-08-25 05:08 | 639232306217998913 |
|
3 ms | 222.199.255.101 |
| 13 | 2026-08-25 04:51 | 639232296255744174 |
|
224 ms | 222.199.255.101 |
| 12 | 2026-08-25 04:34 | 639232286095760789 |
|
221 ms | 222.199.255.101 |
| 11 | 2026-08-25 04:17 | 639232276086186273 |
|
220 ms | 222.199.255.101 |
| 10 | 2026-08-25 04:01 | 639232265900986425 |
|
855 ms | 222.199.255.101 |
| 9 | 2026-08-25 03:44 | 639232255723518075 |
|
219 ms | 222.199.255.101 |
| 8 | 2026-08-25 03:27 | 639232245484452890 |
|
2275 ms | 222.199.255.101 |
| 7 | 2026-08-25 03:09 | 639232235157175331 |
|
220 ms | 222.199.255.101 |
| 6 | 2026-08-25 02:16 | 639232203197189095 |
|
3 ms | 222.199.255.101 |
| 5 | 2026-08-25 01:59 | 639232192844564298 |
|
2 ms | 222.199.255.101 |
| 4 | 2026-08-25 01:42 | 639232182496008942 |
|
233 ms | 222.199.255.101 |
| 3 | 2026-08-25 01:24 | 639232172197053132 |
|
225 ms | 222.199.255.101 |
| 2 | 2026-08-25 00:31 | 639232140250307418 |
|
224 ms | 222.199.255.101 |
| 1 | 2026-08-25 00:14 | 639232129927860324 |
|
2 ms | 222.199.255.101 |