DNS response history for ns4.upgrade.pt

ns4.upgrade.pt 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 63 DNS check records, 63 successful responses, 0 failed responses, and 421 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.upgrade.pt.
Records on Selected Date

63

Historical checks stored for this nameserver on selected date

Average Latency

421 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-25 21:41

All timestamps shown in UTC

Latest Resolved IP on Selected Date

51.15.253.4

Most recently resolved hosting IP on selected date

Successful Responses

63

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.upgrade.pt

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
63 2026-08-25 21:41 639232900747078453
280 ms 51.15.253.4
62 2026-08-25 21:24 639232890389222534
277 ms 51.15.253.4
61 2026-08-25 21:06 639232880143390843
277 ms 51.15.253.4
60 2026-08-25 20:49 639232869755024069
302 ms 51.15.253.4
59 2026-08-25 20:32 639232859355940346
282 ms 51.15.253.4
58 2026-08-25 20:15 639232848992244953
559 ms 51.15.253.4
57 2026-08-25 19:57 639232838596478500
271 ms 51.15.253.4
56 2026-08-25 19:40 639232828175327683
288 ms 51.15.253.4
55 2026-08-25 19:23 639232817798330473
270 ms 51.15.253.4
54 2026-08-25 18:29 639232785462407552
4458 ms 51.15.253.4
53 2026-08-25 18:12 639232775177487032
307 ms 51.15.253.4
52 2026-08-25 17:54 639232764991087115
3 ms 51.15.253.4
51 2026-08-25 17:38 639232754842971478
308 ms 51.15.253.4
50 2026-08-25 17:21 639232744455159107
531 ms 51.15.253.4
49 2026-08-25 17:03 639232734145178231
560 ms 51.15.253.4
48 2026-08-25 16:46 639232723827874402
562 ms 51.15.253.4
47 2026-08-25 16:29 639232713533011892
304 ms 51.15.253.4
46 2026-08-25 16:12 639232703065318207
276 ms 51.15.253.4
45 2026-08-25 15:54 639232692629559470
304 ms 51.15.253.4
44 2026-08-25 15:37 639232682238836475
272 ms 51.15.253.4
43 2026-08-25 15:19 639232671787004306
283 ms 51.15.253.4
42 2026-08-25 14:25 639232638994329666
276 ms 51.15.253.4
41 2026-08-25 14:08 639232628614783237
274 ms 51.15.253.4
40 2026-08-25 13:50 639232618360728578
599 ms 51.15.253.4
39 2026-08-25 13:33 639232608016476376
545 ms 51.15.253.4
38 2026-08-25 13:16 639232597643611557
11 ms 51.15.253.4
37 2026-08-25 12:58 639232587225721862
277 ms 51.15.253.4
36 2026-08-25 12:41 639232576780683689
1919 ms 51.15.253.4
35 2026-08-25 12:24 639232566381512620
270 ms 51.15.253.4
34 2026-08-25 12:06 639232556111768563
273 ms 51.15.253.4
33 2026-08-25 11:49 639232545839529039
1587 ms 51.15.253.4
32 2026-08-25 11:32 639232535349285207
268 ms 51.15.253.4
31 2026-08-25 11:15 639232524938080723
157 ms 51.15.253.4
30 2026-08-25 10:21 639232492740373468
265 ms 51.15.253.4
29 2026-08-25 10:04 639232482235303141
5 ms 51.15.253.4
28 2026-08-25 09:46 639232471861770303
269 ms 51.15.253.4
27 2026-08-25 09:29 639232461630217327
534 ms 51.15.253.4
26 2026-08-25 09:12 639232451282965990
270 ms 51.15.253.4
25 2026-08-25 08:55 639232440814614938
4 ms 51.15.253.4
24 2026-08-25 08:37 639232430410720425
269 ms 51.15.253.4
23 2026-08-25 08:20 639232420003096185
152 ms 51.15.253.4
22 2026-08-25 08:02 639232409467287444
266 ms 51.15.253.4
21 2026-08-25 07:45 639232399077195997
546 ms 51.15.253.4
20 2026-08-25 07:28 639232388731528337
294 ms 51.15.253.4
19 2026-08-25 07:10 639232378288598612
591 ms 51.15.253.4
18 2026-08-25 06:16 639232346196373643
155 ms 51.15.253.4
17 2026-08-25 06:00 639232336112370741
592 ms 51.15.253.4
16 2026-08-25 05:43 639232326146508970
1583 ms 51.15.253.4
15 2026-08-25 05:26 639232316189381720
269 ms 51.15.253.4
14 2026-08-25 05:10 639232306217998913
531 ms 51.15.253.4
13 2026-08-25 04:53 639232296255744174
31 ms 51.15.253.4
12 2026-08-25 04:36 639232286095760789
270 ms 51.15.253.4
11 2026-08-25 04:19 639232276086186273
3 ms 51.15.253.4
10 2026-08-25 04:03 639232265900986425
271 ms 51.15.253.4
9 2026-08-25 03:46 639232255723518075
3 ms 51.15.253.4
8 2026-08-25 03:29 639232245484452890
2 ms 51.15.253.4
7 2026-08-25 03:12 639232235157175331
8 ms 51.15.253.4
6 2026-08-25 02:18 639232203197189095
267 ms 51.15.253.4
5 2026-08-25 02:01 639232192844564298
151 ms 51.15.253.4
4 2026-08-25 01:44 639232182496008942
296 ms 51.15.253.4
3 2026-08-25 01:27 639232172197053132
592 ms 51.15.253.4
2 2026-08-25 00:33 639232140250307418
318 ms 51.15.253.4
1 2026-08-25 00:16 639232129927860324
295 ms 51.15.253.4