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 2026-08-16. For this date, NameServerHistory found 60 DNS check records, 60 successful responses, 0 failed responses, and 234 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

60

Historical checks stored for this nameserver on selected date

Average Latency

234 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-16 23:49

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

60

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 2026-08-16 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
60 2026-08-16 23:49 639225207490611656
48 ms 128.199.214.95
59 2026-08-16 23:33 639225198045815385
7 ms 128.199.214.95
58 2026-08-16 22:41 639225166825544741
53 ms 128.199.214.95
57 2026-08-16 22:25 639225157549461269
42 ms 128.199.214.95
56 2026-08-16 22:09 639225147914556308
90 ms 128.199.214.95
55 2026-08-16 21:53 639225138472322960
100 ms 128.199.214.95
54 2026-08-16 21:01 639225107211236826
2019 ms 128.199.214.95
53 2026-08-16 20:45 639225097684457510
49 ms 128.199.214.95
52 2026-08-16 20:29 639225087942913396
40 ms 128.199.214.95
51 2026-08-16 20:13 639225078238684183
125 ms 128.199.214.95
50 2026-08-16 19:21 639225046944151094
2035 ms 128.199.214.95
49 2026-08-16 19:05 639225037234857231
86 ms 128.199.214.95
48 2026-08-16 18:48 639225027423459920
64 ms 128.199.214.95
47 2026-08-16 18:32 639225017891613027
68 ms 128.199.214.95
46 2026-08-16 17:39 639224986298183527
57 ms 128.199.214.95
45 2026-08-16 17:23 639224976567107023
162 ms 128.199.214.95
44 2026-08-16 17:07 639224966709723386
2033 ms 128.199.214.95
43 2026-08-16 16:51 639224957175756942
87 ms 128.199.214.95
42 2026-08-16 15:59 639224925782379869
46 ms 128.199.214.95
41 2026-08-16 15:43 639224916429532459
61 ms 128.199.214.95
40 2026-08-16 15:27 639224906878325623
2202 ms 128.199.214.95
39 2026-08-16 15:11 639224897258974385
264 ms 128.199.214.95
38 2026-08-16 14:19 639224866169532828
121 ms 128.199.214.95
37 2026-08-16 14:03 639224856561831915
65 ms 128.199.214.95
36 2026-08-16 13:47 639224846830897794
147 ms 128.199.214.95
35 2026-08-16 13:31 639224836975863283
35 ms 128.199.214.95
34 2026-08-16 12:38 639224804985340946
47 ms 128.199.214.95
33 2026-08-16 12:22 639224795567782333
50 ms 128.199.214.95
32 2026-08-16 12:06 639224785914225250
33 ms 128.199.214.95
31 2026-08-16 11:50 639224776383854998
126 ms 128.199.214.95
30 2026-08-16 10:57 639224744252113993
45 ms 128.199.214.95
29 2026-08-16 10:40 639224734238905542
40 ms 128.199.214.95
28 2026-08-16 10:24 639224724335031221
62 ms 128.199.214.95
27 2026-08-16 10:07 639224714475244430
250 ms 128.199.214.95
26 2026-08-16 09:11 639224681063874153
19 ms 128.199.214.95
25 2026-08-16 08:55 639224671038956665
29 ms 128.199.214.95
24 2026-08-16 08:38 639224661079806122
29 ms 128.199.214.95
23 2026-08-16 08:22 639224651169993038
53 ms 128.199.214.95
22 2026-08-16 07:28 639224618882283050
26 ms 128.199.214.95
21 2026-08-16 07:12 639224609519965372
212 ms 128.199.214.95
20 2026-08-16 06:56 639224599969658888
183 ms 128.199.214.95
19 2026-08-16 06:41 639224590360343307
54 ms 128.199.214.95
18 2026-08-16 05:48 639224558901831832
15 ms 128.199.214.95
17 2026-08-16 05:33 639224549678210576
39 ms 128.199.214.95
16 2026-08-16 05:17 639224540433420642
59 ms 128.199.214.95
15 2026-08-16 05:02 639224531046032443
87 ms 128.199.214.95
14 2026-08-16 04:09 639224499638024410
22 ms 128.199.214.95
13 2026-08-16 03:54 639224490358783451
33 ms 128.199.214.95
12 2026-08-16 03:38 639224481111410545
25 ms 128.199.214.95
11 2026-08-16 03:23 639224471809153772
25 ms 128.199.214.95
10 2026-08-16 02:30 639224440124457324
15 ms 128.199.214.95
9 2026-08-16 02:15 639224430921105721
8 ms 128.199.214.95
8 2026-08-16 01:59 639224421455433103
41 ms 128.199.214.95
7 2026-08-16 01:44 639224412089740331
77 ms 128.199.214.95
6 2026-08-16 01:28 639224403168392868
37 ms 128.199.214.95
5 2026-08-16 01:13 639224393856251387
44 ms 128.199.214.95
4 2026-08-16 00:58 639224384677141438
35 ms 128.199.214.95
3 2026-08-16 00:42 639224375597986398
27 ms 128.199.214.95
2 2026-08-16 00:27 639224366430296466
2013 ms 128.199.214.95
1 2026-08-16 00:12 639224357218176789
50 ms 128.199.214.95