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 2026-08-16. For this date, NameServerHistory found 61 DNS check records, 61 successful responses, 0 failed responses, and 209 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

61

Historical checks stored for this nameserver on selected date

Average Latency

209 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-16 23:56

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

61

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 2026-08-16 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
61 2026-08-16 23:56 639225207490611656
224 ms 143.198.131.228
60 2026-08-16 23:40 639225198045815385
118 ms 143.198.131.228
59 2026-08-16 22:48 639225166825544741
503 ms 143.198.131.228
58 2026-08-16 22:32 639225157549461269
121 ms 143.198.131.228
57 2026-08-16 22:17 639225147914556308
326 ms 143.198.131.228
56 2026-08-16 22:01 639225138472322960
123 ms 143.198.131.228
55 2026-08-16 21:09 639225107211236826
229 ms 143.198.131.228
54 2026-08-16 20:53 639225097684457510
109 ms 143.198.131.228
53 2026-08-16 20:37 639225087942913396
345 ms 143.198.131.228
52 2026-08-16 20:21 639225078238684183
132 ms 143.198.131.228
51 2026-08-16 19:28 639225046944151094
115 ms 143.198.131.228
50 2026-08-16 19:13 639225037234857231
255 ms 143.198.131.228
49 2026-08-16 18:56 639225027423459920
115 ms 143.198.131.228
48 2026-08-16 18:40 639225017891613027
227 ms 143.198.131.228
47 2026-08-16 17:48 639224986298183527
110 ms 143.198.131.228
46 2026-08-16 17:32 639224976567107023
115 ms 143.198.131.228
45 2026-08-16 17:15 639224966709723386
229 ms 143.198.131.228
44 2026-08-16 16:59 639224957175756942
114 ms 143.198.131.228
43 2026-08-16 16:07 639224925782379869
117 ms 143.198.131.228
42 2026-08-16 15:51 639224916429532459
125 ms 143.198.131.228
41 2026-08-16 15:35 639224906878325623
117 ms 143.198.131.228
40 2026-08-16 15:19 639224897258974385
230 ms 143.198.131.228
39 2026-08-16 14:27 639224866169532828
108 ms 143.198.131.228
38 2026-08-16 14:11 639224856561831915
124 ms 143.198.131.228
37 2026-08-16 13:55 639224846830897794
218 ms 143.198.131.228
36 2026-08-16 13:39 639224836975863283
228 ms 143.198.131.228
35 2026-08-16 12:46 639224804985340946
122 ms 143.198.131.228
34 2026-08-16 12:30 639224795567782333
117 ms 143.198.131.228
33 2026-08-16 12:14 639224785914225250
228 ms 143.198.131.228
32 2026-08-16 11:58 639224776383854998
121 ms 143.198.131.228
31 2026-08-16 11:05 639224744252113993
229 ms 143.198.131.228
30 2026-08-16 10:49 639224734238905542
119 ms 143.198.131.228
29 2026-08-16 10:32 639224724335031221
340 ms 143.198.131.228
28 2026-08-16 10:15 639224714475244430
120 ms 143.198.131.228
27 2026-08-16 09:20 639224681063874153
10 ms 143.198.131.228
26 2026-08-16 09:03 639224671038956665
340 ms 143.198.131.228
25 2026-08-16 08:46 639224661079806122
334 ms 143.198.131.228
24 2026-08-16 08:30 639224651169993038
272 ms 143.198.131.228
23 2026-08-16 07:36 639224618882283050
8 ms 143.198.131.228
22 2026-08-16 07:20 639224609519965372
126 ms 143.198.131.228
21 2026-08-16 07:04 639224599969658888
7 ms 143.198.131.228
20 2026-08-16 06:48 639224590360343307
5 ms 143.198.131.228
19 2026-08-16 05:56 639224558901831832
229 ms 143.198.131.228
18 2026-08-16 05:40 639224549678210576
8 ms 143.198.131.228
17 2026-08-16 05:25 639224540433420642
638 ms 143.198.131.228
16 2026-08-16 05:09 639224531046032443
542 ms 143.198.131.228
15 2026-08-16 04:17 639224499638024410
408 ms 143.198.131.228
14 2026-08-16 04:01 639224490358783451
116 ms 143.198.131.228
13 2026-08-16 03:46 639224481111410545
3 ms 143.198.131.228
12 2026-08-16 03:30 639224471809153772
121 ms 143.198.131.228
11 2026-08-16 02:38 639224440124457324
10 ms 143.198.131.228
10 2026-08-16 02:23 639224430921105721
4 ms 143.198.131.228
9 2026-08-16 02:07 639224421455433103
122 ms 143.198.131.228
8 2026-08-16 01:51 639224412089740331
347 ms 143.198.131.228
7 2026-08-16 01:36 639224403168392868
121 ms 143.198.131.228
6 2026-08-16 01:21 639224393856251387
131 ms 143.198.131.228
5 2026-08-16 01:05 639224384677141438
123 ms 143.198.131.228
4 2026-08-16 00:50 639224375597986398
113 ms 143.198.131.228
3 2026-08-16 00:35 639224366430296466
4 ms 143.198.131.228
2 2026-08-16 00:19 639224357218176789
120 ms 143.198.131.228
1 2026-08-16 00:04 639224347685767174
2331 ms 143.198.131.228