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 2026-08-08. For this date, NameServerHistory found 63 DNS check records, 63 successful responses, 0 failed responses, and 316 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

63

Historical checks stored for this nameserver on selected date

Average Latency

316 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-08 23:46

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

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 b.root-servers.nv.com

Showing DNS history for 2026-08-08 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 2026-08-08 23:46 639218291874134258
505 ms 143.198.131.228
62 2026-08-08 23:30 639218282817785496
99 ms 143.198.131.228
61 2026-08-08 22:39 639218252106422334
100 ms 143.198.131.228
60 2026-08-08 22:25 639218243323944113
109 ms 143.198.131.228
59 2026-08-08 22:10 639218234397020230
227 ms 143.198.131.228
58 2026-08-08 21:55 639218225412858763
378 ms 143.198.131.228
57 2026-08-08 21:03 639218194282616684
129 ms 143.198.131.228
56 2026-08-08 20:48 639218185036989606
144 ms 143.198.131.228
55 2026-08-08 20:32 639218175974363575
256 ms 143.198.131.228
54 2026-08-08 20:18 639218166972644815
605 ms 143.198.131.228
53 2026-08-08 19:26 639218135900313734
122 ms 143.198.131.228
52 2026-08-08 19:11 639218127088470726
528 ms 143.198.131.228
51 2026-08-08 18:56 639218118310406743
90 ms 143.198.131.228
50 2026-08-08 18:41 639218109452520238
340 ms 143.198.131.228
49 2026-08-08 17:50 639218078440804962
581 ms 143.198.131.228
48 2026-08-08 17:36 639218069827056995
552 ms 143.198.131.228
47 2026-08-08 17:21 639218060928974999
252 ms 143.198.131.228
46 2026-08-08 17:06 639218052072104591
346 ms 143.198.131.228
45 2026-08-08 16:14 639218021131612993
114 ms 143.198.131.228
44 2026-08-08 15:59 639218012544891033
116 ms 143.198.131.228
43 2026-08-08 15:45 639218003733822367
96 ms 143.198.131.228
42 2026-08-08 15:30 639217994998349201
2094 ms 143.198.131.228
41 2026-08-08 14:38 639217963788814319
237 ms 143.198.131.228
40 2026-08-08 14:24 639217955087396874
338 ms 143.198.131.228
39 2026-08-08 14:09 639217946350294952
226 ms 143.198.131.228
38 2026-08-08 13:54 639217937526020436
681 ms 143.198.131.228
37 2026-08-08 13:03 639217906769667024
547 ms 143.198.131.228
36 2026-08-08 12:49 639217898300938849
261 ms 143.198.131.228
35 2026-08-08 12:35 639217889778639925
122 ms 143.198.131.228
34 2026-08-08 12:20 639217881083065140
95 ms 143.198.131.228
33 2026-08-08 11:29 639217850620659312
335 ms 143.198.131.228
32 2026-08-08 11:15 639217841938624907
702 ms 143.198.131.228
31 2026-08-08 11:01 639217833389546843
263 ms 143.198.131.228
30 2026-08-08 10:46 639217824846173945
437 ms 143.198.131.228
29 2026-08-08 09:55 639217793807292972
477 ms 143.198.131.228
28 2026-08-08 09:41 639217785208951403
402 ms 143.198.131.228
27 2026-08-08 09:26 639217776566534942
95 ms 143.198.131.228
26 2026-08-08 09:12 639217767935139326
457 ms 143.198.131.228
25 2026-08-08 08:20 639217737225367411
9 ms 143.198.131.228
24 2026-08-08 08:06 639217728765093674
161 ms 143.198.131.228
23 2026-08-08 07:52 639217720136905586
91 ms 143.198.131.228
22 2026-08-08 07:37 639217711410853004
507 ms 143.198.131.228
21 2026-08-08 06:47 639217680275549698
132 ms 143.198.131.228
20 2026-08-08 06:32 639217671340563867
338 ms 143.198.131.228
19 2026-08-08 06:17 639217662739829952
121 ms 143.198.131.228
18 2026-08-08 06:03 639217654129395144
346 ms 143.198.131.228
17 2026-08-08 05:12 639217623690502934
488 ms 143.198.131.228
16 2026-08-08 04:58 639217615180184169
7 ms 143.198.131.228
15 2026-08-08 04:44 639217606737293244
218 ms 143.198.131.228
14 2026-08-08 04:30 639217598089858483
565 ms 143.198.131.228
13 2026-08-08 03:38 639217567343169140
107 ms 143.198.131.228
12 2026-08-08 03:24 639217558743892856
91 ms 143.198.131.228
11 2026-08-08 03:10 639217550069823359
311 ms 143.198.131.228
10 2026-08-08 02:55 639217541571663863
348 ms 143.198.131.228
9 2026-08-08 02:01 639217510598671918
2 ms 143.198.131.228
8 2026-08-08 01:47 639217501853904641
218 ms 143.198.131.228
7 2026-08-08 01:32 639217492857464038
342 ms 143.198.131.228
6 2026-08-08 01:17 639217483935810845
499 ms 143.198.131.228
5 2026-08-08 01:03 639217475281344873
213 ms 143.198.131.228
4 2026-08-08 00:48 639217466591266473
335 ms 143.198.131.228
3 2026-08-08 00:34 639217457842031506
338 ms 143.198.131.228
2 2026-08-08 00:19 639217449192590684
538 ms 143.198.131.228
1 2026-08-08 00:04 639217440385817840
131 ms 143.198.131.228