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 2026-08-09. For this date, NameServerHistory found 77 DNS check records, 76 successful responses, 1 failed responses, and 292 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

77

Historical checks stored for this nameserver on selected date

Average Latency

292 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-09 23:16

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

76

Checks that returned a measurable response

Failed Responses

1

Checks with no response or no returned latency

Failure Rate

1%

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 2026-08-09 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
77 2026-08-09 23:16 639219137912168440
64 ms 128.199.214.95
76 2026-08-09 23:01 639219129014206359
94 ms 128.199.214.95
75 2026-08-09 22:46 639219120129816185
76 ms 128.199.214.95
74 2026-08-09 22:31 639219111180200055
22 ms 128.199.214.95
73 2026-08-09 22:16 639219102397272208
208 ms 128.199.214.95
72 2026-08-09 22:01 639219093318422880
46 ms 128.199.214.95
71 2026-08-09 21:46 639219084400315753
70 ms 128.199.214.95
70 2026-08-09 21:31 639219075254551587
382 ms 128.199.214.95
69 2026-08-09 21:16 639219065729192158
41 ms 128.199.214.95
68 2026-08-09 21:00 639219056747802098
30 ms 128.199.214.95
67 2026-08-09 20:45 639219047713450952
79 ms 128.199.214.95
66 2026-08-09 20:30 639219038561445315
313 ms 128.199.214.95
65 2026-08-09 19:36 639219007390383771
184 ms 128.199.214.95
64 2026-08-09 19:21 639218998523265596
2015 ms 128.199.214.95
63 2026-08-09 19:07 639218989631630804
71 ms 128.199.214.95
62 2026-08-09 18:52 639218980808450892
2027 ms 128.199.214.95
61 2026-08-09 18:37 639218971852160604
9 ms 128.199.214.95
60 2026-08-09 18:22 639218962783650906
45 ms 128.199.214.95
59 2026-08-09 18:07 639218953792820819
53 ms 128.199.214.95
58 2026-08-09 17:52 639218944959692876
2215 ms 128.199.214.95
57 2026-08-09 17:37 639218936169104506
105 ms 128.199.214.95
56 2026-08-09 17:22 639218927166062556
40 ms 128.199.214.95
55 2026-08-09 17:07 639218918015715420
2010 ms 128.199.214.95
54 2026-08-09 16:52 639218908881852638
25 ms 128.199.214.95
53 2026-08-09 15:58 639218877956262035
58 ms 128.199.214.95
52 2026-08-09 15:43 639218869143729797
57 ms 128.199.214.95
51 2026-08-09 15:29 639218860485298832
34 ms 128.199.214.95
50 2026-08-09 15:14 639218851607906747
74 ms 128.199.214.95
49 2026-08-09 14:59 639218842720839568
37 ms 128.199.214.95
48 2026-08-09 14:45 639218833878788864
2036 ms 128.199.214.95
47 2026-08-09 14:30 639218825180862573
51 ms 128.199.214.95
46 2026-08-09 14:15 639218816469621951
88 ms 128.199.214.95
45 2026-08-09 14:01 639218807685036212
78 ms 128.199.214.95
44 2026-08-09 13:46 639218798978271509
47 ms 128.199.214.95
43 2026-08-09 13:32 639218790065423597
42 ms 128.199.214.95
42 2026-08-09 13:17 639218781304584862
-
41 2026-08-09 12:25 639218750311179000
67 ms 128.199.214.95
40 2026-08-09 12:11 639218741750420268
64 ms 128.199.214.95
39 2026-08-09 11:56 639218733057535576
23 ms 128.199.214.95
38 2026-08-09 11:42 639218724471329044
17 ms 128.199.214.95
37 2026-08-09 11:28 639218715911974203
70 ms 128.199.214.95
36 2026-08-09 11:13 639218707310812834
2036 ms 128.199.214.95
35 2026-08-09 10:59 639218698790485612
40 ms 128.199.214.95
34 2026-08-09 10:45 639218690367692706
64 ms 128.199.214.95
33 2026-08-09 10:31 639218681923173883
7 ms 128.199.214.95
32 2026-08-09 10:17 639218673547179738
273 ms 128.199.214.95
31 2026-08-09 10:03 639218664890274867
181 ms 128.199.214.95
30 2026-08-09 09:48 639218656036928157
386 ms 128.199.214.95
29 2026-08-09 08:56 639218624808018222
5 ms 128.199.214.95
28 2026-08-09 08:42 639218616243340806
18 ms 128.199.214.95
27 2026-08-09 08:27 639218607397811973
40 ms 128.199.214.95
26 2026-08-09 08:13 639218598812444454
195 ms 128.199.214.95
25 2026-08-09 07:58 639218590219570048
122 ms 128.199.214.95
24 2026-08-09 07:44 639218581690210758
86 ms 128.199.214.95
23 2026-08-09 07:30 639218573057388822
161 ms 128.199.214.95
22 2026-08-09 07:15 639218564408781785
254 ms 128.199.214.95
21 2026-08-09 07:01 639218555767188482
9 ms 128.199.214.95
20 2026-08-09 06:47 639218547142705295
2034 ms 128.199.214.95
19 2026-08-09 06:31 639218538090114532
37 ms 128.199.214.95
18 2026-08-09 06:17 639218529257910584
47 ms 128.199.214.95
17 2026-08-09 05:26 639218498473231858
191 ms 128.199.214.95
16 2026-08-09 05:12 639218489802113995
68 ms 128.199.214.95
15 2026-08-09 04:57 639218481006804516
4 ms 128.199.214.95
14 2026-08-09 04:42 639218472048712427
69 ms 128.199.214.95
13 2026-08-09 04:28 639218463224432974
23 ms 128.199.214.95
12 2026-08-09 04:13 639218454384107526
75 ms 128.199.214.95
11 2026-08-09 03:58 639218445331231791
54 ms 128.199.214.95
10 2026-08-09 03:43 639218436285215733
79 ms 128.199.214.95
9 2026-08-09 03:28 639218427289555123
17 ms 128.199.214.95
8 2026-08-09 03:13 639218418227819981
187 ms 128.199.214.95
7 2026-08-09 02:57 639218409119503123
7 ms 128.199.214.95
6 2026-08-09 02:42 639218399771712154
53 ms 128.199.214.95
5 2026-08-09 01:49 639218368648652303
23 ms 128.199.214.95
4 2026-08-09 01:34 639218359569598460
92 ms 128.199.214.95
3 2026-08-09 01:19 639218350555429902
39 ms 128.199.214.95
2 2026-08-09 01:04 639218341311543299
82 ms 128.199.214.95
1 2026-08-09 00:11 639218309981981465
2035 ms 128.199.214.95