History for ns4.polyu.edu.hk
Domain: polyu.edu.hk • Tracking since 2026-08-04 23:25 UTC
DNS response history for ns4.polyu.edu.hk
ns4.polyu.edu.hk 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 56 DNS check records, 56 successful responses, 0 failed responses, and 427 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.polyu.edu.hk.
Records on Selected Date
56
Historical checks stored for this nameserver on selected date
Average Latency
427 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-24 23:56
All timestamps shown in UTC
Latest Resolved IP on Selected Date
20.247.42.177
Most recently resolved hosting IP on selected date
Successful Responses
56
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.polyu.edu.hk
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 |
|---|---|---|---|---|---|
| 56 | 2026-08-24 23:56 | 639232119551972438 |
|
277 ms | 20.247.42.177 |
| 55 | 2026-08-24 23:39 | 639232109112567473 |
|
409 ms | 20.247.42.177 |
| 54 | 2026-08-24 22:46 | 639232077430823987 |
|
274 ms | 20.247.42.177 |
| 53 | 2026-08-24 22:29 | 639232067340513033 |
|
270 ms | 20.247.42.177 |
| 52 | 2026-08-24 22:12 | 639232057157944387 |
|
281 ms | 20.247.42.177 |
| 51 | 2026-08-24 21:55 | 639232046895282144 |
|
290 ms | 20.247.42.177 |
| 50 | 2026-08-24 21:01 | 639232014356623395 |
|
321 ms | 20.247.42.177 |
| 49 | 2026-08-24 20:44 | 639232004177831322 |
|
2294 ms | 20.247.42.177 |
| 48 | 2026-08-24 20:27 | 639231993997863976 |
|
274 ms | 20.247.42.177 |
| 47 | 2026-08-24 20:10 | 639231983967363696 |
|
268 ms | 20.247.42.177 |
| 46 | 2026-08-24 19:17 | 639231952257842845 |
|
278 ms | 20.247.42.177 |
| 45 | 2026-08-24 19:00 | 639231942277816756 |
|
278 ms | 20.247.42.177 |
| 44 | 2026-08-24 18:44 | 639231932094180724 |
|
560 ms | 20.247.42.177 |
| 43 | 2026-08-24 18:27 | 639231922041034838 |
|
2207 ms | 20.247.42.177 |
| 42 | 2026-08-24 17:34 | 639231890488117536 |
|
18 ms | 20.247.42.177 |
| 41 | 2026-08-24 17:17 | 639231880574255543 |
|
3 ms | 20.247.42.177 |
| 40 | 2026-08-24 17:01 | 639231870418029045 |
|
285 ms | 20.247.42.177 |
| 39 | 2026-08-24 16:44 | 639231860258429562 |
|
268 ms | 20.247.42.177 |
| 38 | 2026-08-24 15:50 | 639231828211839931 |
|
579 ms | 20.247.42.177 |
| 37 | 2026-08-24 15:34 | 639231818080917481 |
|
272 ms | 20.247.42.177 |
| 36 | 2026-08-24 15:16 | 639231807961539652 |
|
220 ms | 20.247.42.177 |
| 35 | 2026-08-24 15:00 | 639231797631669865 |
|
288 ms | 20.247.42.177 |
| 34 | 2026-08-24 14:06 | 639231765923559455 |
|
5 ms | 20.247.42.177 |
| 33 | 2026-08-24 13:50 | 639231755868832964 |
|
273 ms | 20.247.42.177 |
| 32 | 2026-08-24 13:33 | 639231745628278877 |
|
7 ms | 20.247.42.177 |
| 31 | 2026-08-24 13:16 | 639231735407682062 |
|
287 ms | 20.247.42.177 |
| 30 | 2026-08-24 12:23 | 639231703815441688 |
|
8 ms | 20.247.42.177 |
| 29 | 2026-08-24 12:06 | 639231693747052549 |
|
385 ms | 20.247.42.177 |
| 28 | 2026-08-24 11:49 | 639231683712487276 |
|
279 ms | 20.247.42.177 |
| 27 | 2026-08-24 11:32 | 639231673513573868 |
|
271 ms | 20.247.42.177 |
| 26 | 2026-08-24 10:39 | 639231641791249939 |
|
283 ms | 20.247.42.177 |
| 25 | 2026-08-24 10:23 | 639231631866211033 |
|
204 ms | 20.247.42.177 |
| 24 | 2026-08-24 10:06 | 639231621644955316 |
|
272 ms | 20.247.42.177 |
| 23 | 2026-08-24 09:49 | 639231611478799259 |
|
288 ms | 20.247.42.177 |
| 22 | 2026-08-24 08:57 | 639231579923718211 |
|
274 ms | 20.247.42.177 |
| 21 | 2026-08-24 08:40 | 639231569810702936 |
|
5 ms | 20.247.42.177 |
| 20 | 2026-08-24 08:23 | 639231559762411619 |
|
330 ms | 20.247.42.177 |
| 19 | 2026-08-24 08:06 | 639231549663595407 |
|
271 ms | 20.247.42.177 |
| 18 | 2026-08-24 07:13 | 639231518076817246 |
|
287 ms | 20.247.42.177 |
| 17 | 2026-08-24 06:57 | 639231508078650885 |
|
3 ms | 20.247.42.177 |
| 16 | 2026-08-24 06:40 | 639231498210697093 |
|
275 ms | 20.247.42.177 |
| 15 | 2026-08-24 06:24 | 639231488109699360 |
|
268 ms | 20.247.42.177 |
| 14 | 2026-08-24 05:31 | 639231456772510692 |
|
268 ms | 20.247.42.177 |
| 13 | 2026-08-24 05:15 | 639231447084631185 |
|
241 ms | 20.247.42.177 |
| 12 | 2026-08-24 04:59 | 639231437208519473 |
|
2240 ms | 20.247.42.177 |
| 11 | 2026-08-24 04:42 | 639231427209627490 |
|
202 ms | 20.247.42.177 |
| 10 | 2026-08-24 03:49 | 639231395791246644 |
|
284 ms | 20.247.42.177 |
| 9 | 2026-08-24 03:33 | 639231386075551458 |
|
560 ms | 20.247.42.177 |
| 8 | 2026-08-24 03:17 | 639231376208713791 |
|
285 ms | 20.247.42.177 |
| 7 | 2026-08-24 03:00 | 639231366170589276 |
|
272 ms | 20.247.42.177 |
| 6 | 2026-08-24 02:08 | 639231334732159368 |
|
2229 ms | 20.247.42.177 |
| 5 | 2026-08-24 01:51 | 639231325035670078 |
|
4 ms | 20.247.42.177 |
| 4 | 2026-08-24 01:35 | 639231315132253837 |
|
3 ms | 20.247.42.177 |
| 3 | 2026-08-24 01:18 | 639231305014280808 |
|
270 ms | 20.247.42.177 |
| 2 | 2026-08-24 00:26 | 639231273779380675 |
|
2276 ms | 20.247.42.177 |
| 1 | 2026-08-24 00:10 | 639231264180839154 |
|
278 ms | 20.247.42.177 |