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 2026-08-17. For this date, NameServerHistory found 72 DNS check records, 72 successful responses, 0 failed responses, and 285 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

72

Historical checks stored for this nameserver on selected date

Average Latency

285 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-17 23:58

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

72

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 2026-08-17 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
72 2026-08-17 23:58 639226072268080268
234 ms 143.198.131.228
71 2026-08-17 23:41 639226062577647657
343 ms 143.198.131.228
70 2026-08-17 22:49 639226031060857136
252 ms 143.198.131.228
69 2026-08-17 22:33 639226021535117364
333 ms 143.198.131.228
68 2026-08-17 22:17 639226011884237078
4 ms 143.198.131.228
67 2026-08-17 22:01 639226002309299142
336 ms 143.198.131.228
66 2026-08-17 21:45 639225992791784448
230 ms 143.198.131.228
65 2026-08-17 21:29 639225983045271390
117 ms 143.198.131.228
64 2026-08-17 21:13 639225973246293513
231 ms 143.198.131.228
63 2026-08-17 20:56 639225963620186236
233 ms 143.198.131.228
62 2026-08-17 20:40 639225953899183916
126 ms 143.198.131.228
61 2026-08-17 20:24 639225944391528206
339 ms 143.198.131.228
60 2026-08-17 20:08 639225934593254169
123 ms 143.198.131.228
59 2026-08-17 19:52 639225924669984512
349 ms 143.198.131.228
58 2026-08-17 18:59 639225893048561320
341 ms 143.198.131.228
57 2026-08-17 18:43 639225883481298424
234 ms 143.198.131.228
56 2026-08-17 18:27 639225873845394034
120 ms 143.198.131.228
55 2026-08-17 18:11 639225864216078662
250 ms 143.198.131.228
54 2026-08-17 17:55 639225854541857773
13 ms 143.198.131.228
53 2026-08-17 17:38 639225844733604072
117 ms 143.198.131.228
52 2026-08-17 17:22 639225835085229232
116 ms 143.198.131.228
51 2026-08-17 17:06 639225825349373981
242 ms 143.198.131.228
50 2026-08-17 16:50 639225815690604161
114 ms 143.198.131.228
49 2026-08-17 16:34 639225805952472306
355 ms 143.198.131.228
48 2026-08-17 16:17 639225796264729638
549 ms 143.198.131.228
47 2026-08-17 16:01 639225786326499329
2099 ms 143.198.131.228
46 2026-08-17 15:08 639225754798130711
116 ms 143.198.131.228
45 2026-08-17 14:52 639225745123193922
331 ms 143.198.131.228
44 2026-08-17 14:36 639225735540597271
218 ms 143.198.131.228
43 2026-08-17 14:20 639225725894857396
358 ms 143.198.131.228
42 2026-08-17 14:04 639225716249606913
18 ms 143.198.131.228
41 2026-08-17 13:48 639225706638238179
224 ms 143.198.131.228
40 2026-08-17 13:32 639225696949691423
341 ms 143.198.131.228
39 2026-08-17 13:16 639225687286186336
114 ms 143.198.131.228
38 2026-08-17 13:00 639225677679573133
6 ms 143.198.131.228
37 2026-08-17 12:44 639225667957861024
120 ms 143.198.131.228
36 2026-08-17 12:27 639225658298791618
341 ms 143.198.131.228
35 2026-08-17 12:11 639225648583652785
118 ms 143.198.131.228
34 2026-08-17 11:18 639225617000524308
3 ms 143.198.131.228
33 2026-08-17 11:03 639225607668541600
4 ms 143.198.131.228
32 2026-08-17 10:47 639225598117279238
230 ms 143.198.131.228
31 2026-08-17 10:31 639225588751002710
489 ms 143.198.131.228
30 2026-08-17 10:16 639225579295831051
233 ms 143.198.131.228
29 2026-08-17 10:00 639225569761469940
433 ms 143.198.131.228
28 2026-08-17 09:44 639225560161422333
228 ms 143.198.131.228
27 2026-08-17 09:28 639225550739955565
5 ms 143.198.131.228
26 2026-08-17 09:12 639225541125222426
115 ms 143.198.131.228
25 2026-08-17 08:56 639225531526675983
217 ms 143.198.131.228
24 2026-08-17 08:40 639225521915528222
124 ms 143.198.131.228
23 2026-08-17 08:24 639225512148151789
3390 ms 143.198.131.228
22 2026-08-17 07:31 639225480786142412
5 ms 143.198.131.228
21 2026-08-17 07:16 639225471394348551
328 ms 143.198.131.228
20 2026-08-17 07:00 639225462031685068
225 ms 143.198.131.228
19 2026-08-17 06:44 639225452639458328
108 ms 143.198.131.228
18 2026-08-17 06:29 639225443300966543
338 ms 143.198.131.228
17 2026-08-17 06:13 639225433880499379
335 ms 143.198.131.228
16 2026-08-17 05:57 639225424395198277
348 ms 143.198.131.228
15 2026-08-17 05:42 639225414744137487
114 ms 143.198.131.228
14 2026-08-17 05:26 639225405186783164
123 ms 143.198.131.228
13 2026-08-17 05:10 639225395563669822
227 ms 143.198.131.228
12 2026-08-17 04:53 639225386076645158
337 ms 143.198.131.228
11 2026-08-17 04:38 639225376620669704
191 ms 143.198.131.228
10 2026-08-17 03:46 639225345580892706
432 ms 143.198.131.228
9 2026-08-17 03:30 639225336207383710
496 ms 143.198.131.228
8 2026-08-17 03:15 639225326726565001
120 ms 143.198.131.228
7 2026-08-17 02:59 639225317249271010
365 ms 143.198.131.228
6 2026-08-17 02:07 639225286280886044
3 ms 143.198.131.228
5 2026-08-17 01:52 639225276872567548
184 ms 143.198.131.228
4 2026-08-17 01:36 639225267353865348
226 ms 143.198.131.228
3 2026-08-17 01:20 639225258033914248
111 ms 143.198.131.228
2 2026-08-17 00:28 639225226652221583
335 ms 143.198.131.228
1 2026-08-17 00:12 639225217156387684
3 ms 143.198.131.228