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 2026-08-25. For this date, NameServerHistory found 69 DNS check records, 68 successful responses, 1 failed responses, and 330 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

69

Historical checks stored for this nameserver on selected date

Average Latency

330 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-25 23:52

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

68

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 2026-08-25 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
69 2026-08-25 23:52 639232985300872416
165 ms 128.199.214.95
68 2026-08-25 23:34 639232974980190573
316 ms 128.199.214.95
67 2026-08-25 23:17 639232964577050707
545 ms 128.199.214.95
66 2026-08-25 22:23 639232932163142799
620 ms 128.199.214.95
65 2026-08-25 22:06 639232921673215474
335 ms 128.199.214.95
64 2026-08-25 21:48 639232911234504639
586 ms 128.199.214.95
63 2026-08-25 21:31 639232900747078453
70 ms 128.199.214.95
62 2026-08-25 21:13 639232890389222534
426 ms 128.199.214.95
61 2026-08-25 20:56 639232880143390843
272 ms 128.199.214.95
60 2026-08-25 20:39 639232869755024069
409 ms 128.199.214.95
59 2026-08-25 20:22 639232859355940346
440 ms 128.199.214.95
58 2026-08-25 20:04 639232848992244953
35 ms 128.199.214.95
57 2026-08-25 19:47 639232838596478500
398 ms 128.199.214.95
56 2026-08-25 19:30 639232828175327683
163 ms 128.199.214.95
55 2026-08-25 19:12 639232817798330473
74 ms 128.199.214.95
54 2026-08-25 18:19 639232785462407552
7 ms 128.199.214.95
53 2026-08-25 18:01 639232775177487032
504 ms 128.199.214.95
52 2026-08-25 17:44 639232764991087115
46 ms 128.199.214.95
51 2026-08-25 17:28 639232754842971478
2317 ms 128.199.214.95
50 2026-08-25 17:10 639232744455159107
14 ms 128.199.214.95
49 2026-08-25 16:53 639232734145178231
512 ms 128.199.214.95
48 2026-08-25 16:36 639232723827874402
8 ms 128.199.214.95
47 2026-08-25 16:19 639232713533011892
426 ms 128.199.214.95
46 2026-08-25 16:01 639232703065318207
41 ms 128.199.214.95
45 2026-08-25 15:44 639232692629559470
23 ms 128.199.214.95
44 2026-08-25 15:26 639232682238836475
161 ms 128.199.214.95
43 2026-08-25 15:09 639232671787004306
2015 ms 128.199.214.95
42 2026-08-25 14:14 639232638994329666
25 ms 128.199.214.95
41 2026-08-25 13:57 639232628614783237
202 ms 128.199.214.95
40 2026-08-25 13:40 639232618360728578
205 ms 128.199.214.95
39 2026-08-25 13:23 639232608016476376
274 ms 128.199.214.95
38 2026-08-25 13:06 639232597643611557
30 ms 128.199.214.95
37 2026-08-25 12:48 639232587225721862
2020 ms 128.199.214.95
36 2026-08-25 12:31 639232576780683689
270 ms 128.199.214.95
35 2026-08-25 12:13 639232566381512620
353 ms 128.199.214.95
34 2026-08-25 11:56 639232556111768563
322 ms 128.199.214.95
33 2026-08-25 11:39 639232545839529039
276 ms 128.199.214.95
32 2026-08-25 11:22 639232535349285207
113 ms 128.199.214.95
31 2026-08-25 11:04 639232524938080723
-
30 2026-08-25 10:11 639232492740373468
17 ms 128.199.214.95
29 2026-08-25 09:53 639232482235303141
26 ms 128.199.214.95
28 2026-08-25 09:36 639232471861770303
58 ms 128.199.214.95
27 2026-08-25 09:19 639232461630217327
27 ms 128.199.214.95
26 2026-08-25 09:02 639232451282965990
50 ms 128.199.214.95
25 2026-08-25 08:44 639232440814614938
49 ms 128.199.214.95
24 2026-08-25 08:27 639232430410720425
167 ms 128.199.214.95
23 2026-08-25 08:10 639232420003096185
48 ms 128.199.214.95
22 2026-08-25 07:52 639232409467287444
2013 ms 128.199.214.95
21 2026-08-25 07:35 639232399077195997
32 ms 128.199.214.95
20 2026-08-25 07:17 639232388731528337
58 ms 128.199.214.95
19 2026-08-25 07:00 639232378288598612
378 ms 128.199.214.95
18 2026-08-25 06:06 639232346196373643
40 ms 128.199.214.95
17 2026-08-25 05:50 639232336112370741
426 ms 128.199.214.95
16 2026-08-25 05:33 639232326146508970
507 ms 128.199.214.95
15 2026-08-25 05:16 639232316189381720
90 ms 128.199.214.95
14 2026-08-25 05:00 639232306217998913
255 ms 128.199.214.95
13 2026-08-25 04:43 639232296255744174
312 ms 128.199.214.95
12 2026-08-25 04:26 639232286095760789
48 ms 128.199.214.95
11 2026-08-25 04:10 639232276086186273
43 ms 128.199.214.95
10 2026-08-25 03:53 639232265900986425
23 ms 128.199.214.95
9 2026-08-25 03:36 639232255723518075
28 ms 128.199.214.95
8 2026-08-25 03:19 639232245484452890
44 ms 128.199.214.95
7 2026-08-25 03:01 639232235157175331
65 ms 128.199.214.95
6 2026-08-25 02:08 639232203197189095
183 ms 128.199.214.95
5 2026-08-25 01:51 639232192844564298
2234 ms 128.199.214.95
4 2026-08-25 01:34 639232182496008942
62 ms 128.199.214.95
3 2026-08-25 01:16 639232172197053132
15 ms 128.199.214.95
2 2026-08-25 00:23 639232140250307418
36 ms 128.199.214.95
1 2026-08-25 00:06 639232129927860324
106 ms 128.199.214.95