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 2026-08-10. For this date, NameServerHistory found 82 DNS check records, 82 successful responses, 0 failed responses, and 194 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

82

Historical checks stored for this nameserver on selected date

Average Latency

194 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-10 23:55

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

82

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 2026-08-10 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
82 2026-08-10 23:55 639220027366289509
66 ms 128.199.214.95
81 2026-08-10 23:40 639220018272941900
5 ms 128.199.214.95
80 2026-08-10 23:25 639220009109892969
50 ms 128.199.214.95
79 2026-08-10 23:10 639220000040489788
43 ms 128.199.214.95
78 2026-08-10 22:55 639219991197135747
215 ms 128.199.214.95
77 2026-08-10 22:40 639219982104540014
40 ms 128.199.214.95
76 2026-08-10 22:25 639219973150300215
98 ms 128.199.214.95
75 2026-08-10 22:10 639219964188486697
86 ms 128.199.214.95
74 2026-08-10 21:55 639219954995921784
48 ms 128.199.214.95
73 2026-08-10 21:39 639219945559908104
85 ms 128.199.214.95
72 2026-08-10 20:47 639219914137782273
80 ms 128.199.214.95
71 2026-08-10 20:32 639219904858355064
35 ms 128.199.214.95
70 2026-08-10 20:16 639219895655263396
44 ms 128.199.214.95
69 2026-08-10 20:01 639219886527091074
40 ms 128.199.214.95
68 2026-08-10 19:46 639219877343266628
39 ms 128.199.214.95
67 2026-08-10 19:31 639219868177358195
84 ms 128.199.214.95
66 2026-08-10 19:16 639219859159581515
15 ms 128.199.214.95
65 2026-08-10 19:00 639219850124020182
23 ms 128.199.214.95
64 2026-08-10 18:45 639219840940124840
170 ms 128.199.214.95
63 2026-08-10 18:30 639219831829876486
29 ms 128.199.214.95
62 2026-08-10 18:15 639219822587759143
185 ms 128.199.214.95
61 2026-08-10 17:59 639219813247114428
48 ms 128.199.214.95
60 2026-08-10 17:07 639219781959606396
41 ms 128.199.214.95
59 2026-08-10 16:52 639219772658305431
53 ms 128.199.214.95
58 2026-08-10 16:37 639219763454523027
58 ms 128.199.214.95
57 2026-08-10 16:21 639219754279127815
215 ms 128.199.214.95
56 2026-08-10 16:06 639219745087467767
46 ms 128.199.214.95
55 2026-08-10 15:51 639219735900678107
2032 ms 128.199.214.95
54 2026-08-10 15:35 639219726531461979
54 ms 128.199.214.95
53 2026-08-10 15:20 639219717415222156
46 ms 128.199.214.95
52 2026-08-10 15:05 639219708266470863
46 ms 128.199.214.95
51 2026-08-10 14:49 639219699049479559
43 ms 128.199.214.95
50 2026-08-10 14:34 639219689775815194
41 ms 128.199.214.95
49 2026-08-10 14:18 639219680511810632
52 ms 128.199.214.95
48 2026-08-10 13:27 639219648997191257
27 ms 128.199.214.95
47 2026-08-10 13:11 639219639938909436
63 ms 128.199.214.95
46 2026-08-10 12:56 639219630718286441
56 ms 128.199.214.95
45 2026-08-10 12:41 639219621472350410
51 ms 128.199.214.95
44 2026-08-10 12:26 639219612500421992
67 ms 128.199.214.95
43 2026-08-10 12:11 639219603383833445
27 ms 128.199.214.95
42 2026-08-10 11:55 639219594143823358
46 ms 128.199.214.95
41 2026-08-10 11:40 639219585053166024
271 ms 128.199.214.95
40 2026-08-10 11:25 639219575885776644
33 ms 128.199.214.95
39 2026-08-10 11:10 639219566844532361
76 ms 128.199.214.95
38 2026-08-10 10:54 639219557705808294
53 ms 128.199.214.95
37 2026-08-10 10:39 639219548482688649
35 ms 128.199.214.95
36 2026-08-10 09:48 639219517492763539
33 ms 128.199.214.95
35 2026-08-10 09:33 639219508755773605
49 ms 128.199.214.95
34 2026-08-10 09:18 639219499852103863
50 ms 128.199.214.95
33 2026-08-10 09:03 639219490893714387
17 ms 128.199.214.95
32 2026-08-10 08:49 639219482299305521
32 ms 128.199.214.95
31 2026-08-10 08:34 639219473613114853
84 ms 128.199.214.95
30 2026-08-10 08:20 639219465061138643
193 ms 128.199.214.95
29 2026-08-10 08:06 639219456616129015
206 ms 128.199.214.95
28 2026-08-10 07:52 639219447974008557
43 ms 128.199.214.95
27 2026-08-10 07:37 639219439498255213
2560 ms 128.199.214.95
26 2026-08-10 07:23 639219430664872256
46 ms 128.199.214.95
25 2026-08-10 07:08 639219421757560037
22 ms 128.199.214.95
24 2026-08-10 06:17 639219390773218684
9 ms 128.199.214.95
23 2026-08-10 06:03 639219382205367722
43 ms 128.199.214.95
22 2026-08-10 05:49 639219373711937615
20 ms 128.199.214.95
21 2026-08-10 05:34 639219365088558404
56 ms 128.199.214.95
20 2026-08-10 05:20 639219356348833255
30 ms 128.199.214.95
19 2026-08-10 05:06 639219347860053478
15 ms 128.199.214.95
18 2026-08-10 04:51 639219339173195121
314 ms 128.199.214.95
17 2026-08-10 04:37 639219330642664669
25 ms 128.199.214.95
16 2026-08-10 04:23 639219322058698995
202 ms 128.199.214.95
15 2026-08-10 04:09 639219313564344199
37 ms 128.199.214.95
14 2026-08-10 03:54 639219304775113236
219 ms 128.199.214.95
13 2026-08-10 03:39 639219295706181119
57 ms 128.199.214.95
12 2026-08-10 02:46 639219264663923254
74 ms 128.199.214.95
11 2026-08-10 02:32 639219256015178099
20 ms 128.199.214.95
10 2026-08-10 02:17 639219247509540188
178 ms 128.199.214.95
9 2026-08-10 02:03 639219238999539092
14 ms 128.199.214.95
8 2026-08-10 01:49 639219230498823902
23 ms 128.199.214.95
7 2026-08-10 01:35 639219221706460911
25 ms 128.199.214.95
6 2026-08-10 01:20 639219212930606887
24 ms 128.199.214.95
5 2026-08-10 01:06 639219204307908525
19 ms 128.199.214.95
4 2026-08-10 00:51 639219195720181470
31 ms 128.199.214.95
3 2026-08-10 00:37 639219186898174002
4053 ms 128.199.214.95
2 2026-08-10 00:22 639219178004946976
2016 ms 128.199.214.95
1 2026-08-10 00:07 639219168958805474
7 ms 128.199.214.95