DNS response history for b.root-server.info

b.root-server.info 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 2026-08-13. For this date, NameServerHistory found 72 DNS check records, 72 successful responses, 0 failed responses, and 424 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-server.info.
Records on Selected Date

72

Historical checks stored for this nameserver on selected date

Average Latency

424 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-13 23:56

All timestamps shown in UTC

Latest Resolved IP on Selected Date

128.199.214.95

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-server.info

Showing DNS history for 2026-08-13 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 2026-08-13 23:56 639222618462620588
45 ms 128.199.214.95
71 2026-08-13 23:40 639222608688333012
622 ms 128.199.214.95
70 2026-08-13 23:23 639222598741756356
65 ms 128.199.214.95
69 2026-08-13 23:07 639222588615244093
53 ms 128.199.214.95
68 2026-08-13 22:13 639222556495289724
34 ms 128.199.214.95
67 2026-08-13 21:56 639222546477917698
53 ms 128.199.214.95
66 2026-08-13 21:39 639222536257653790
47 ms 128.199.214.95
65 2026-08-13 21:22 639222525833084485
79 ms 128.199.214.95
64 2026-08-13 21:05 639222515446085004
92 ms 128.199.214.95
63 2026-08-13 20:48 639222505166766781
23 ms 128.199.214.95
62 2026-08-13 20:30 639222494930541001
40 ms 128.199.214.95
61 2026-08-13 20:13 639222484469216890
319 ms 128.199.214.95
60 2026-08-13 19:56 639222474270039940
54 ms 128.199.214.95
59 2026-08-13 19:39 639222464005587385
2191 ms 128.199.214.95
58 2026-08-13 19:21 639222453485975041
50 ms 128.199.214.95
57 2026-08-13 19:04 639222442984828770
224 ms 128.199.214.95
56 2026-08-13 18:09 639222410191353397
45 ms 128.199.214.95
55 2026-08-13 17:51 639222399952628376
78 ms 128.199.214.95
54 2026-08-13 17:34 639222389608608647
40 ms 128.199.214.95
53 2026-08-13 17:17 639222379604012481
31 ms 128.199.214.95
52 2026-08-13 17:01 639222369372672858
44 ms 128.199.214.95
51 2026-08-13 16:43 639222359096909298
101 ms 128.199.214.95
50 2026-08-13 16:27 639222348814301655
2046 ms 128.199.214.95
49 2026-08-13 16:09 639222338608331104
62 ms 128.199.214.95
48 2026-08-13 15:52 639222328204609760
2276 ms 128.199.214.95
47 2026-08-13 15:35 639222317859759909
2062 ms 128.199.214.95
46 2026-08-13 15:18 639222307560137918
47 ms 128.199.214.95
45 2026-08-13 15:00 639222297274357149
8 ms 128.199.214.95
44 2026-08-13 14:07 639222265004477827
406 ms 128.199.214.95
43 2026-08-13 13:50 639222255176583683
31 ms 128.199.214.95
42 2026-08-13 13:34 639222245340146131
293 ms 128.199.214.95
41 2026-08-13 13:18 639222235662219956
69 ms 128.199.214.95
40 2026-08-13 13:02 639222225817223284
26 ms 128.199.214.95
39 2026-08-13 12:46 639222216341869648
48 ms 128.199.214.95
38 2026-08-13 12:30 639222206848442189
40 ms 128.199.214.95
37 2026-08-13 12:14 639222197538963225
54 ms 128.199.214.95
36 2026-08-13 11:58 639222188113685569
7 ms 128.199.214.95
35 2026-08-13 11:43 639222178880138458
10 ms 128.199.214.95
34 2026-08-13 11:27 639222169343013317
41 ms 128.199.214.95
33 2026-08-13 11:12 639222159910600596
2009 ms 128.199.214.95
32 2026-08-13 10:18 639222128676274866
79 ms 128.199.214.95
31 2026-08-13 10:03 639222119169781983
2053 ms 128.199.214.95
30 2026-08-13 09:47 639222109996148889
2016 ms 128.199.214.95
29 2026-08-13 09:32 639222100791323799
40 ms 128.199.214.95
28 2026-08-13 09:17 639222091647893142
295 ms 128.199.214.95
27 2026-08-13 09:02 639222082524717649
2011 ms 128.199.214.95
26 2026-08-13 08:46 639222073378630456
19 ms 128.199.214.95
25 2026-08-13 08:32 639222064537306701
254 ms 128.199.214.95
24 2026-08-13 08:16 639222055409471864
75 ms 128.199.214.95
23 2026-08-13 08:01 639222046117152411
64 ms 128.199.214.95
22 2026-08-13 07:46 639222036915107067
48 ms 128.199.214.95
21 2026-08-13 07:30 639222027654889141
2040 ms 128.199.214.95
20 2026-08-13 06:39 639221996824612035
9 ms 128.199.214.95
19 2026-08-13 06:24 639221987863418113
321 ms 128.199.214.95
18 2026-08-13 06:09 639221979006823112
174 ms 128.199.214.95
17 2026-08-13 05:54 639221970068466615
40 ms 128.199.214.95
16 2026-08-13 05:39 639221961001585139
42 ms 128.199.214.95
15 2026-08-13 05:24 639221952104046397
37 ms 128.199.214.95
14 2026-08-13 05:10 639221943247694484
73 ms 128.199.214.95
13 2026-08-13 04:55 639221934603388241
2033 ms 128.199.214.95
12 2026-08-13 04:40 639221925729273358
65 ms 128.199.214.95
11 2026-08-13 04:26 639221916777813401
54 ms 128.199.214.95
10 2026-08-13 04:10 639221907816913910
69 ms 128.199.214.95
9 2026-08-13 03:55 639221898639694322
25 ms 128.199.214.95
8 2026-08-13 03:04 639221868257567489
401 ms 128.199.214.95
7 2026-08-13 02:49 639221859270235608
2178 ms 128.199.214.95
6 2026-08-13 02:34 639221850184464515
28 ms 128.199.214.95
5 2026-08-13 02:18 639221841141973425
7 ms 128.199.214.95
4 2026-08-13 01:28 639221810548753083
39 ms 128.199.214.95
3 2026-08-13 01:13 639221801656796262
60 ms 128.199.214.95
2 2026-08-13 00:58 639221792658715334
2023 ms 128.199.214.95
1 2026-08-13 00:43 639221783571379176
15 ms 128.199.214.95