DNS response history for bdns4.ultradns.net

bdns4.ultradns.net 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 60 DNS check records, 60 successful responses, 0 failed responses, and 236 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 bdns4.ultradns.net.
Records on Selected Date

60

Historical checks stored for this nameserver on selected date

Average Latency

236 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-25 20:37

All timestamps shown in UTC

Latest Resolved IP on Selected Date

156.154.154.2

Most recently resolved hosting IP on selected date

Successful Responses

60

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 bdns4.ultradns.net

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
60 2026-08-25 20:37 639232869755024069
12 ms 156.154.154.2
59 2026-08-25 20:20 639232859355940346
81 ms 156.154.154.2
58 2026-08-25 20:02 639232848992244953
81 ms 156.154.154.2
57 2026-08-25 19:45 639232838596478500
32 ms 156.154.154.2
56 2026-08-25 19:28 639232828175327683
2011 ms 156.154.154.2
55 2026-08-25 19:11 639232817798330473
91 ms 156.154.154.2
54 2026-08-25 18:17 639232785462407552
31 ms 156.154.154.2
53 2026-08-25 18:00 639232775177487032
2114 ms 156.154.154.2
52 2026-08-25 17:42 639232764991087115
28 ms 156.154.154.2
51 2026-08-25 17:26 639232754842971478
65 ms 156.154.154.2
50 2026-08-25 17:08 639232744455159107
74 ms 156.154.154.2
49 2026-08-25 16:51 639232734145178231
2038 ms 156.154.154.2
48 2026-08-25 16:34 639232723827874402
154 ms 156.154.154.2
47 2026-08-25 16:17 639232713533011892
18 ms 156.154.154.2
46 2026-08-25 15:59 639232703065318207
26 ms 156.154.154.2
45 2026-08-25 15:42 639232692629559470
15 ms 156.154.154.2
44 2026-08-25 15:25 639232682238836475
29 ms 156.154.154.2
43 2026-08-25 15:07 639232671787004306
38 ms 156.154.154.2
42 2026-08-25 14:13 639232638994329666
2035 ms 156.154.154.2
41 2026-08-25 13:55 639232628614783237
19 ms 156.154.154.2
40 2026-08-25 13:38 639232618360728578
138 ms 156.154.154.2
39 2026-08-25 13:21 639232608016476376
12 ms 156.154.154.2
38 2026-08-25 13:04 639232597643611557
2041 ms 156.154.154.2
37 2026-08-25 12:46 639232587225721862
10 ms 156.154.154.2
36 2026-08-25 12:29 639232576780683689
64 ms 156.154.154.2
35 2026-08-25 12:11 639232566381512620
37 ms 156.154.154.2
34 2026-08-25 11:54 639232556111768563
28 ms 156.154.154.2
33 2026-08-25 11:37 639232545839529039
12 ms 156.154.154.2
32 2026-08-25 11:20 639232535349285207
18 ms 156.154.154.2
31 2026-08-25 11:02 639232524938080723
12 ms 156.154.154.2
30 2026-08-25 10:09 639232492740373468
37 ms 156.154.154.2
29 2026-08-25 09:51 639232482235303141
2012 ms 156.154.154.2
28 2026-08-25 09:34 639232471861770303
18 ms 156.154.154.2
27 2026-08-25 09:17 639232461630217327
11 ms 156.154.154.2
26 2026-08-25 09:00 639232451282965990
30 ms 156.154.154.2
25 2026-08-25 08:42 639232440814614938
18 ms 156.154.154.2
24 2026-08-25 08:25 639232430410720425
35 ms 156.154.154.2
23 2026-08-25 08:08 639232420003096185
45 ms 156.154.154.2
22 2026-08-25 07:50 639232409467287444
32 ms 156.154.154.2
21 2026-08-25 07:33 639232399077195997
33 ms 156.154.154.2
20 2026-08-25 07:15 639232388731528337
20 ms 156.154.154.2
19 2026-08-25 06:58 639232378288598612
12 ms 156.154.154.2
18 2026-08-25 06:05 639232346196373643
10 ms 156.154.154.2
17 2026-08-25 05:48 639232336112370741
49 ms 156.154.154.2
16 2026-08-25 05:31 639232326146508970
10 ms 156.154.154.2
15 2026-08-25 05:15 639232316189381720
24 ms 156.154.154.2
14 2026-08-25 04:58 639232306217998913
19 ms 156.154.154.2
13 2026-08-25 04:41 639232296255744174
12 ms 156.154.154.2
12 2026-08-25 04:24 639232286095760789
13 ms 156.154.154.2
11 2026-08-25 04:08 639232276086186273
44 ms 156.154.154.2
10 2026-08-25 03:51 639232265900986425
11 ms 156.154.154.2
9 2026-08-25 03:34 639232255723518075
67 ms 156.154.154.2
8 2026-08-25 03:17 639232245484452890
45 ms 156.154.154.2
7 2026-08-25 02:59 639232235157175331
51 ms 156.154.154.2
6 2026-08-25 02:06 639232203197189095
9 ms 156.154.154.2
5 2026-08-25 01:49 639232192844564298
15 ms 156.154.154.2
4 2026-08-25 01:32 639232182496008942
84 ms 156.154.154.2
3 2026-08-25 01:15 639232172197053132
9 ms 156.154.154.2
2 2026-08-25 00:21 639232140250307418
11 ms 156.154.154.2
1 2026-08-25 00:04 639232129927860324
30 ms 156.154.154.2