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 2026-08-29. For this date, NameServerHistory found 70 DNS check records, 70 successful responses, 0 failed responses, and 303 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

303 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-29 23:48

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

70

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.4e21.net

Showing DNS history for 2026-08-29 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 2026-08-29 23:48 639236439461653110
46 ms 188.244.98.135
69 2026-08-29 23:32 639236429501366737
45 ms 188.244.98.135
68 2026-08-29 23:15 639236419366541896
2023 ms 188.244.98.135
67 2026-08-29 22:57 639236409033370421
68 ms 188.244.98.135
66 2026-08-29 22:40 639236398677638980
62 ms 188.244.98.135
65 2026-08-29 22:23 639236388335394435
52 ms 188.244.98.135
64 2026-08-29 21:29 639236356238021142
51 ms 188.244.98.135
63 2026-08-29 21:13 639236346147662482
58 ms 188.244.98.135
62 2026-08-29 20:56 639236336073303987
46 ms 188.244.98.135
61 2026-08-29 20:39 639236325803271480
23 ms 188.244.98.135
60 2026-08-29 20:22 639236315636203732
20 ms 188.244.98.135
59 2026-08-29 20:05 639236305430277951
47 ms 188.244.98.135
58 2026-08-29 19:48 639236295286597133
2039 ms 188.244.98.135
57 2026-08-29 19:31 639236285137083691
53 ms 188.244.98.135
56 2026-08-29 19:14 639236274938699727
49 ms 188.244.98.135
55 2026-08-29 18:57 639236264595544117
52 ms 188.244.98.135
54 2026-08-29 18:39 639236254203764064
61 ms 188.244.98.135
53 2026-08-29 18:22 639236243919128798
76 ms 188.244.98.135
52 2026-08-29 17:29 639236211708980066
2069 ms 188.244.98.135
51 2026-08-29 17:12 639236201724764228
48 ms 188.244.98.135
50 2026-08-29 16:55 639236191714376906
2025 ms 188.244.98.135
49 2026-08-29 16:39 639236181773042179
31 ms 188.244.98.135
48 2026-08-29 16:22 639236171632735061
48 ms 188.244.98.135
47 2026-08-29 16:05 639236161347015414
53 ms 188.244.98.135
46 2026-08-29 15:48 639236151200362098
7 ms 188.244.98.135
45 2026-08-29 15:31 639236141026805328
2037 ms 188.244.98.135
44 2026-08-29 15:14 639236131100930722
57 ms 188.244.98.135
43 2026-08-29 14:57 639236120950030411
33 ms 188.244.98.135
42 2026-08-29 14:40 639236110532007205
50 ms 188.244.98.135
41 2026-08-29 14:23 639236100176958860
54 ms 188.244.98.135
40 2026-08-29 13:30 639236068470247956
40 ms 188.244.98.135
39 2026-08-29 13:13 639236058468679452
52 ms 188.244.98.135
38 2026-08-29 12:56 639236048317337090
9 ms 188.244.98.135
37 2026-08-29 12:39 639236038221169202
52 ms 188.244.98.135
36 2026-08-29 12:23 639236028175589918
66 ms 188.244.98.135
35 2026-08-29 12:06 639236017965421028
68 ms 188.244.98.135
34 2026-08-29 11:49 639236007792625266
49 ms 188.244.98.135
33 2026-08-29 11:32 639235997602806960
7 ms 188.244.98.135
32 2026-08-29 11:15 639235987487833458
48 ms 188.244.98.135
31 2026-08-29 10:58 639235977211002296
60 ms 188.244.98.135
30 2026-08-29 10:40 639235966864596836
36 ms 188.244.98.135
29 2026-08-29 10:23 639235956590882003
53 ms 188.244.98.135
28 2026-08-29 09:30 639235924465736791
44 ms 188.244.98.135
27 2026-08-29 09:13 639235914430611197
2060 ms 188.244.98.135
26 2026-08-29 08:56 639235904343784853
122 ms 188.244.98.135
25 2026-08-29 08:39 639235894201078068
44 ms 188.244.98.135
24 2026-08-29 08:23 639235884233447452
67 ms 188.244.98.135
23 2026-08-29 08:06 639235874142207309
2037 ms 188.244.98.135
22 2026-08-29 07:49 639235863974652466
108 ms 188.244.98.135
21 2026-08-29 07:32 639235853716243436
28 ms 188.244.98.135
20 2026-08-29 07:15 639235843614494759
5 ms 188.244.98.135
19 2026-08-29 06:58 639235833401459551
38 ms 188.244.98.135
18 2026-08-29 06:41 639235823220464528
52 ms 188.244.98.135
17 2026-08-29 06:24 639235812997510905
4 ms 188.244.98.135
16 2026-08-29 05:31 639235781101962521
46 ms 188.244.98.135
15 2026-08-29 05:14 639235771207673260
43 ms 188.244.98.135
14 2026-08-29 04:57 639235761047429642
76 ms 188.244.98.135
13 2026-08-29 04:41 639235750964347246
73 ms 188.244.98.135
12 2026-08-29 04:24 639235740923490874
12 ms 188.244.98.135
11 2026-08-29 04:07 639235730842894399
24 ms 188.244.98.135
10 2026-08-29 03:50 639235720760084717
49 ms 188.244.98.135
9 2026-08-29 03:34 639235710843666743
68 ms 188.244.98.135
8 2026-08-29 03:17 639235700733510561
7 ms 188.244.98.135
7 2026-08-29 03:00 639235690509906192
7 ms 188.244.98.135
6 2026-08-29 02:43 639235680156673501
47 ms 188.244.98.135
5 2026-08-29 02:25 639235669720606443
48 ms 188.244.98.135
4 2026-08-29 01:31 639235637451417084
2034 ms 188.244.98.135
3 2026-08-29 01:15 639235627307383453
2025 ms 188.244.98.135
2 2026-08-29 00:57 639235616906386856
50 ms 188.244.98.135
1 2026-08-29 00:40 639235606582912691
72 ms 188.244.98.135