DNS response history for b.4e21.net

b.4e21.net 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 2026-08-26. For this date, NameServerHistory found 70 DNS check records, 69 successful responses, 1 failed responses, and 256 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.4e21.net.
Records on Selected Date

70

Historical checks stored for this nameserver on selected date

Average Latency

256 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 23:47

All timestamps shown in UTC

Latest Resolved IP on Selected Date

188.244.98.135

Most recently resolved hosting IP on selected date

Successful Responses

69

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.4e21.net

Showing DNS history for 2026-08-26 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
70 2026-08-26 23:47 639233846871926285
53 ms 188.244.98.135
69 2026-08-26 22:53 639233814527872887
71 ms 188.244.98.135
68 2026-08-26 22:36 639233804315489381
7 ms 188.244.98.135
67 2026-08-26 22:19 639233793971346256
51 ms 188.244.98.135
66 2026-08-26 22:02 639233783644630463
49 ms 188.244.98.135
65 2026-08-26 21:45 639233773302621314
46 ms 188.244.98.135
64 2026-08-26 21:27 639233762896723748
45 ms 188.244.98.135
63 2026-08-26 21:10 639233752543876329
50 ms 188.244.98.135
62 2026-08-26 20:53 639233742155931788
48 ms 188.244.98.135
61 2026-08-26 20:35 639233731712555311
-
60 2026-08-26 20:18 639233721164051126
52 ms 188.244.98.135
59 2026-08-26 20:00 639233710560486320
2037 ms 188.244.98.135
58 2026-08-26 19:42 639233699834667450
53 ms 188.244.98.135
57 2026-08-26 18:48 639233667209186136
58 ms 188.244.98.135
56 2026-08-26 18:30 639233656814316266
59 ms 188.244.98.135
55 2026-08-26 18:13 639233646245051806
52 ms 188.244.98.135
54 2026-08-26 17:55 639233635663779051
60 ms 188.244.98.135
53 2026-08-26 17:37 639233624977342122
64 ms 188.244.98.135
52 2026-08-26 17:20 639233614446136153
52 ms 188.244.98.135
51 2026-08-26 17:02 639233603737877581
51 ms 188.244.98.135
50 2026-08-26 16:45 639233593269224651
35 ms 188.244.98.135
49 2026-08-26 16:27 639233582635086903
53 ms 188.244.98.135
48 2026-08-26 16:09 639233572000374575
64 ms 188.244.98.135
47 2026-08-26 15:51 639233561188633861
36 ms 188.244.98.135
46 2026-08-26 15:33 639233550544357027
51 ms 188.244.98.135
45 2026-08-26 14:39 639233517966053117
2026 ms 188.244.98.135
44 2026-08-26 14:22 639233507603253585
14 ms 188.244.98.135
43 2026-08-26 14:04 639233497229039167
21 ms 188.244.98.135
42 2026-08-26 13:47 639233486864546406
57 ms 188.244.98.135
41 2026-08-26 13:30 639233476455174682
56 ms 188.244.98.135
40 2026-08-26 13:13 639233466171592605
48 ms 188.244.98.135
39 2026-08-26 12:55 639233455747096265
82 ms 188.244.98.135
38 2026-08-26 12:38 639233445367152284
119 ms 188.244.98.135
37 2026-08-26 12:21 639233434974187439
56 ms 188.244.98.135
36 2026-08-26 12:03 639233424567558554
2030 ms 188.244.98.135
35 2026-08-26 11:46 639233414056832719
61 ms 188.244.98.135
34 2026-08-26 11:28 639233403515141099
63 ms 188.244.98.135
33 2026-08-26 10:34 639233370841350248
69 ms 188.244.98.135
32 2026-08-26 10:16 639233360361507238
55 ms 188.244.98.135
31 2026-08-26 09:59 639233350067824371
57 ms 188.244.98.135
30 2026-08-26 09:42 639233339545274518
12 ms 188.244.98.135
29 2026-08-26 09:24 639233329214918079
89 ms 188.244.98.135
28 2026-08-26 09:07 639233318749762337
64 ms 188.244.98.135
27 2026-08-26 08:50 639233308387917838
7 ms 188.244.98.135
26 2026-08-26 08:32 639233297961740122
52 ms 188.244.98.135
25 2026-08-26 08:15 639233287487159094
84 ms 188.244.98.135
24 2026-08-26 07:57 639233276995531707
51 ms 188.244.98.135
23 2026-08-26 07:40 639233266521568229
2043 ms 188.244.98.135
22 2026-08-26 07:23 639233256081047431
2012 ms 188.244.98.135
21 2026-08-26 06:28 639233223620132921
2049 ms 188.244.98.135
20 2026-08-26 06:11 639233213287814244
66 ms 188.244.98.135
19 2026-08-26 05:54 639233202925983161
57 ms 188.244.98.135
18 2026-08-26 05:37 639233192644780696
49 ms 188.244.98.135
17 2026-08-26 05:20 639233182401183833
71 ms 188.244.98.135
16 2026-08-26 05:03 639233172074181051
46 ms 188.244.98.135
15 2026-08-26 04:45 639233161808421455
53 ms 188.244.98.135
14 2026-08-26 04:28 639233151357344052
59 ms 188.244.98.135
13 2026-08-26 04:11 639233141034116946
49 ms 188.244.98.135
12 2026-08-26 03:54 639233130828334142
82 ms 188.244.98.135
11 2026-08-26 03:36 639233120373450007
144 ms 188.244.98.135
10 2026-08-26 03:19 639233110066216193
79 ms 188.244.98.135
9 2026-08-26 02:26 639233078065410564
59 ms 188.244.98.135
8 2026-08-26 02:09 639233067787457832
48 ms 188.244.98.135
7 2026-08-26 01:52 639233057501801162
53 ms 188.244.98.135
6 2026-08-26 01:34 639233047089431703
28 ms 188.244.98.135
5 2026-08-26 01:17 639233036754790688
47 ms 188.244.98.135
4 2026-08-26 01:00 639233026412602472
108 ms 188.244.98.135
3 2026-08-26 00:43 639233016064066127
2027 ms 188.244.98.135
2 2026-08-26 00:26 639233005922655772
63 ms 188.244.98.135
1 2026-08-26 00:09 639232995672256907
8 ms 188.244.98.135