DNS response history for b.root-servers.nv.com

b.root-servers.nv.com 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 68 DNS check records, 68 successful responses, 0 failed responses, and 309 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 b.root-servers.nv.com.
Records on Selected Date

68

Historical checks stored for this nameserver on selected date

Average Latency

309 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-25 23:43

All timestamps shown in UTC

Latest Resolved IP on Selected Date

143.198.131.228

Most recently resolved hosting IP on selected date

Successful Responses

68

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 b.root-servers.nv.com

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
68 2026-08-25 23:43 639232974980190573
2013 ms 143.198.131.228
67 2026-08-25 23:25 639232964577050707
124 ms 143.198.131.228
66 2026-08-25 22:31 639232932163142799
117 ms 143.198.131.228
65 2026-08-25 22:14 639232921673215474
326 ms 143.198.131.228
64 2026-08-25 21:57 639232911234504639
242 ms 143.198.131.228
63 2026-08-25 21:39 639232900747078453
385 ms 143.198.131.228
62 2026-08-25 21:22 639232890389222534
117 ms 143.198.131.228
61 2026-08-25 21:04 639232880143390843
119 ms 143.198.131.228
60 2026-08-25 20:47 639232869755024069
110 ms 143.198.131.228
59 2026-08-25 20:30 639232859355940346
343 ms 143.198.131.228
58 2026-08-25 20:13 639232848992244953
36 ms 143.198.131.228
57 2026-08-25 19:55 639232838596478500
118 ms 143.198.131.228
56 2026-08-25 19:38 639232828175327683
122 ms 143.198.131.228
55 2026-08-25 19:21 639232817798330473
359 ms 143.198.131.228
54 2026-08-25 18:27 639232785462407552
91 ms 143.198.131.228
53 2026-08-25 18:10 639232775177487032
131 ms 143.198.131.228
52 2026-08-25 17:52 639232764991087115
340 ms 143.198.131.228
51 2026-08-25 17:36 639232754842971478
419 ms 143.198.131.228
50 2026-08-25 17:18 639232744455159107
354 ms 143.198.131.228
49 2026-08-25 17:01 639232734145178231
540 ms 143.198.131.228
48 2026-08-25 16:44 639232723827874402
109 ms 143.198.131.228
47 2026-08-25 16:27 639232713533011892
123 ms 143.198.131.228
46 2026-08-25 16:10 639232703065318207
242 ms 143.198.131.228
45 2026-08-25 15:52 639232692629559470
119 ms 143.198.131.228
44 2026-08-25 15:35 639232682238836475
230 ms 143.198.131.228
43 2026-08-25 15:17 639232671787004306
350 ms 143.198.131.228
42 2026-08-25 14:23 639232638994329666
242 ms 143.198.131.228
41 2026-08-25 14:05 639232628614783237
115 ms 143.198.131.228
40 2026-08-25 13:48 639232618360728578
385 ms 143.198.131.228
39 2026-08-25 13:31 639232608016476376
123 ms 143.198.131.228
38 2026-08-25 13:14 639232597643611557
342 ms 143.198.131.228
37 2026-08-25 12:56 639232587225721862
132 ms 143.198.131.228
36 2026-08-25 12:39 639232576780683689
564 ms 143.198.131.228
35 2026-08-25 12:22 639232566381512620
254 ms 143.198.131.228
34 2026-08-25 12:04 639232556111768563
222 ms 143.198.131.228
33 2026-08-25 11:47 639232545839529039
237 ms 143.198.131.228
32 2026-08-25 11:30 639232535349285207
6 ms 143.198.131.228
31 2026-08-25 11:13 639232524938080723
113 ms 143.198.131.228
30 2026-08-25 10:19 639232492740373468
118 ms 143.198.131.228
29 2026-08-25 10:02 639232482235303141
798 ms 143.198.131.228
28 2026-08-25 09:44 639232471861770303
111 ms 143.198.131.228
27 2026-08-25 09:27 639232461630217327
4 ms 143.198.131.228
26 2026-08-25 09:10 639232451282965990
109 ms 143.198.131.228
25 2026-08-25 08:52 639232440814614938
4 ms 143.198.131.228
24 2026-08-25 08:35 639232430410720425
339 ms 143.198.131.228
23 2026-08-25 08:18 639232420003096185
230 ms 143.198.131.228
22 2026-08-25 08:00 639232409467287444
10 ms 143.198.131.228
21 2026-08-25 07:43 639232399077195997
2332 ms 143.198.131.228
20 2026-08-25 07:25 639232388731528337
128 ms 143.198.131.228
19 2026-08-25 07:08 639232378288598612
345 ms 143.198.131.228
18 2026-08-25 06:14 639232346196373643
197 ms 143.198.131.228
17 2026-08-25 05:58 639232336112370741
118 ms 143.198.131.228
16 2026-08-25 05:41 639232326146508970
234 ms 143.198.131.228
15 2026-08-25 05:24 639232316189381720
340 ms 143.198.131.228
14 2026-08-25 05:08 639232306217998913
116 ms 143.198.131.228
13 2026-08-25 04:51 639232296255744174
2481 ms 143.198.131.228
12 2026-08-25 04:34 639232286095760789
92 ms 143.198.131.228
11 2026-08-25 04:17 639232276086186273
117 ms 143.198.131.228
10 2026-08-25 04:01 639232265900986425
115 ms 143.198.131.228
9 2026-08-25 03:44 639232255723518075
336 ms 143.198.131.228
8 2026-08-25 03:27 639232245484452890
502 ms 143.198.131.228
7 2026-08-25 03:10 639232235157175331
341 ms 143.198.131.228
6 2026-08-25 02:16 639232203197189095
108 ms 143.198.131.228
5 2026-08-25 01:59 639232192844564298
122 ms 143.198.131.228
4 2026-08-25 01:42 639232182496008942
122 ms 143.198.131.228
3 2026-08-25 01:25 639232172197053132
234 ms 143.198.131.228
2 2026-08-25 00:31 639232140250307418
110 ms 143.198.131.228
1 2026-08-25 00:14 639232129927860324
515 ms 143.198.131.228