DNS response history for n4.libsyn.com

n4.libsyn.com 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 2026-08-21. For this date, NameServerHistory found 145 DNS check records, 144 successful responses, 1 failed responses, and 146 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 n4.libsyn.com.
Records on Selected Date

145

Historical checks stored for this nameserver on selected date

Average Latency

146 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-21 23:48

All timestamps shown in UTC

Latest Resolved IP on Selected Date

204.16.247.190

Most recently resolved hosting IP on selected date

Successful Responses

144

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 n4.libsyn.com

Showing DNS history for 2026-08-21 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
145 2026-08-21 23:48 639229527598660841
33 ms 204.16.247.190
144 2026-08-21 23:48 639229527598660841
33 ms 204.16.247.189
143 2026-08-21 23:32 639229517954323214
43 ms 204.16.247.189
142 2026-08-21 23:32 639229517954323214
43 ms 204.16.247.190
141 2026-08-21 23:16 639229508269999021
7 ms 204.16.247.190
140 2026-08-21 23:16 639229508269999021
7 ms 204.16.247.189
139 2026-08-21 22:59 639229498559060171
31 ms 204.16.247.189
138 2026-08-21 22:59 639229498559060171
31 ms 204.16.247.190
137 2026-08-21 22:43 639229488519347586
279 ms 204.16.247.190
136 2026-08-21 22:43 639229488519347586
279 ms 204.16.247.189
135 2026-08-21 21:50 639229456606578934
2033 ms 204.16.247.189
134 2026-08-21 21:50 639229456606578934
2033 ms 204.16.247.190
133 2026-08-21 21:34 639229446985772499
4 ms 204.16.247.189
132 2026-08-21 21:34 639229446985772499
4 ms 204.16.247.190
131 2026-08-21 21:18 639229437367313098
3 ms 204.16.247.189
130 2026-08-21 21:18 639229437367313098
3 ms 204.16.247.190
129 2026-08-21 21:02 639229427923950391
52 ms 204.16.247.189
128 2026-08-21 21:02 639229427923950391
52 ms 204.16.247.190
127 2026-08-21 20:46 639229418168588854
40 ms 204.16.247.189
126 2026-08-21 20:46 639229418168588854
40 ms 204.16.247.190
125 2026-08-21 20:29 639229408345678334
37 ms 204.16.247.189
124 2026-08-21 20:29 639229408345678334
37 ms 204.16.247.190
123 2026-08-21 20:13 639229398616354648
21 ms 204.16.247.190
122 2026-08-21 20:13 639229398616354648
21 ms 204.16.247.189
121 2026-08-21 19:57 639229388634592323
34 ms 204.16.247.189
120 2026-08-21 19:57 639229388634592323
34 ms 204.16.247.190
119 2026-08-21 19:40 639229378792837692
16 ms 204.16.247.190
118 2026-08-21 19:40 639229378792837692
16 ms 204.16.247.189
117 2026-08-21 19:24 639229369154682311
51 ms 204.16.247.190
116 2026-08-21 19:24 639229369154682311
51 ms 204.16.247.189
115 2026-08-21 19:07 639229359248017926
29 ms 204.16.247.189
114 2026-08-21 19:07 639229359248017926
29 ms 204.16.247.190
113 2026-08-21 18:51 639229349124294642
33 ms 204.16.247.189
112 2026-08-21 18:51 639229349124294642
33 ms 204.16.247.190
111 2026-08-21 17:58 639229317791715692
22 ms 204.16.247.189
110 2026-08-21 17:58 639229317791715692
22 ms 204.16.247.190
109 2026-08-21 17:42 639229308115194575
24 ms 204.16.247.189
108 2026-08-21 17:42 639229308115194575
24 ms 204.16.247.190
107 2026-08-21 17:26 639229298320320558
18 ms 204.16.247.189
106 2026-08-21 17:26 639229298320320558
18 ms 204.16.247.190
105 2026-08-21 17:10 639229288674863221
247 ms 204.16.247.189
104 2026-08-21 17:10 639229288674863221
247 ms 204.16.247.190
103 2026-08-21 16:54 639229278983677079
56 ms 204.16.247.190
102 2026-08-21 16:54 639229278983677079
56 ms 204.16.247.189
101 2026-08-21 16:38 639229269405517175
12 ms 204.16.247.189
100 2026-08-21 16:38 639229269405517175
12 ms 204.16.247.190
99 2026-08-21 16:21 639229259594798244
43 ms 204.16.247.189
98 2026-08-21 16:21 639229259594798244
43 ms 204.16.247.190
97 2026-08-21 16:05 639229249736681188
45 ms 204.16.247.189
96 2026-08-21 16:05 639229249736681188
45 ms 204.16.247.190
95 2026-08-21 15:48 639229239699417787
34 ms 204.16.247.189
94 2026-08-21 15:48 639229239699417787
34 ms 204.16.247.190
93 2026-08-21 15:31 639229229621964033
9 ms 204.16.247.189
92 2026-08-21 15:31 639229229621964033
9 ms 204.16.247.190
91 2026-08-21 15:15 639229219567270965
44 ms 204.16.247.190
90 2026-08-21 15:15 639229219567270965
44 ms 204.16.247.189
89 2026-08-21 14:58 639229209406666856
52 ms 204.16.247.189
88 2026-08-21 14:58 639229209406666856
52 ms 204.16.247.190
87 2026-08-21 14:05 639229177815876178
39 ms 204.16.247.189
86 2026-08-21 14:05 639229177815876178
39 ms 204.16.247.190
85 2026-08-21 13:49 639229168243572685
30 ms 204.16.247.190
84 2026-08-21 13:49 639229168243572685
30 ms 204.16.247.189
83 2026-08-21 13:33 639229158599856475
29 ms 204.16.247.189
82 2026-08-21 13:33 639229158599856475
29 ms 204.16.247.190
81 2026-08-21 13:17 639229148998940902
27 ms 204.16.247.190
80 2026-08-21 13:17 639229148998940902
27 ms 204.16.247.189
79 2026-08-21 13:01 639229139276923594
23 ms 204.16.247.190
78 2026-08-21 13:01 639229139276923594
23 ms 204.16.247.189
77 2026-08-21 12:45 639229129709912394
44 ms 204.16.247.189
76 2026-08-21 12:45 639229129709912394
44 ms 204.16.247.190
75 2026-08-21 12:28 639229119801488500
29 ms 204.16.247.190
74 2026-08-21 12:28 639229119801488500
29 ms 204.16.247.189
73 2026-08-21 12:12 639229110135262458
10 ms 204.16.247.190
72 2026-08-21 12:12 639229110135262458
10 ms 204.16.247.189
71 2026-08-21 11:56 639229100336051392
34 ms 204.16.247.190
70 2026-08-21 11:56 639229100336051392
34 ms 204.16.247.189
69 2026-08-21 11:40 639229090641415626
23 ms 204.16.247.189
68 2026-08-21 11:40 639229090641415626
23 ms 204.16.247.190
67 2026-08-21 11:23 639229080702683947
26 ms 204.16.247.189
66 2026-08-21 11:23 639229080702683947
26 ms 204.16.247.190
65 2026-08-21 11:06 639229070601456699
39 ms 204.16.247.189
64 2026-08-21 11:06 639229070601456699
39 ms 204.16.247.190
63 2026-08-21 10:14 639229038947447232
3 ms 204.16.247.190
62 2026-08-21 10:14 639229038947447232
3 ms 204.16.247.189
61 2026-08-21 09:58 639229029268708773
-
60 2026-08-21 09:41 639229019647910603
47 ms 204.16.247.189
59 2026-08-21 09:41 639229019647910603
47 ms 204.16.247.190
58 2026-08-21 09:25 639229009983843738
32 ms 204.16.247.189
57 2026-08-21 09:25 639229009983843738
32 ms 204.16.247.190
56 2026-08-21 09:09 639229000203331882
2053 ms 204.16.247.190
55 2026-08-21 09:09 639229000203331882
2053 ms 204.16.247.189
54 2026-08-21 08:52 639228990302335999
22 ms 204.16.247.190
53 2026-08-21 08:52 639228990302335999
22 ms 204.16.247.189
52 2026-08-21 08:36 639228980567740722
6 ms 204.16.247.190
51 2026-08-21 08:36 639228980567740722
6 ms 204.16.247.189
50 2026-08-21 08:20 639228970762445174
2022 ms 204.16.247.190
49 2026-08-21 08:20 639228970762445174
2022 ms 204.16.247.189
48 2026-08-21 08:04 639228961065054445
25 ms 204.16.247.189
47 2026-08-21 08:04 639228961065054445
25 ms 204.16.247.190
46 2026-08-21 07:47 639228951224649885
61 ms 204.16.247.189
45 2026-08-21 07:47 639228951224649885
61 ms 204.16.247.190
44 2026-08-21 07:31 639228941303864592
20 ms 204.16.247.190
43 2026-08-21 07:31 639228941303864592
20 ms 204.16.247.189
42 2026-08-21 07:14 639228931191328583
20 ms 204.16.247.189
41 2026-08-21 07:14 639228931191328583
20 ms 204.16.247.190
40 2026-08-21 06:21 639228899518173317
9 ms 204.16.247.190
39 2026-08-21 06:21 639228899518173317
9 ms 204.16.247.189
38 2026-08-21 06:05 639228889785027669
23 ms 204.16.247.190
37 2026-08-21 06:05 639228889785027669
23 ms 204.16.247.189
36 2026-08-21 05:49 639228880106330161
16 ms 204.16.247.189
35 2026-08-21 05:49 639228880106330161
16 ms 204.16.247.190
34 2026-08-21 05:32 639228870316184091
32 ms 204.16.247.189
33 2026-08-21 05:32 639228870316184091
32 ms 204.16.247.190
32 2026-08-21 05:17 639228860695366512
20 ms 204.16.247.189
31 2026-08-21 05:17 639228860695366512
20 ms 204.16.247.190
30 2026-08-21 05:01 639228851027209500
31 ms 204.16.247.189
29 2026-08-21 05:01 639228851027209500
31 ms 204.16.247.190
28 2026-08-21 04:44 639228841479265462
25 ms 204.16.247.190
27 2026-08-21 04:44 639228841479265462
25 ms 204.16.247.189
26 2026-08-21 04:28 639228831752962260
23 ms 204.16.247.189
25 2026-08-21 04:28 639228831752962260
23 ms 204.16.247.190
24 2026-08-21 04:12 639228821953295483
2028 ms 204.16.247.190
23 2026-08-21 04:12 639228821953295483
2028 ms 204.16.247.189
22 2026-08-21 03:56 639228812227429953
3 ms 204.16.247.190
21 2026-08-21 03:56 639228812227429953
3 ms 204.16.247.189
20 2026-08-21 03:39 639228802476107538
22 ms 204.16.247.190
19 2026-08-21 03:39 639228802476107538
22 ms 204.16.247.189
18 2026-08-21 03:23 639228792525492032
29 ms 204.16.247.189
17 2026-08-21 03:23 639228792525492032
29 ms 204.16.247.190
16 2026-08-21 02:30 639228761131421385
28 ms 204.16.247.189
15 2026-08-21 02:30 639228761131421385
28 ms 204.16.247.190
14 2026-08-21 02:15 639228751571206692
21 ms 204.16.247.190
13 2026-08-21 02:15 639228751571206692
21 ms 204.16.247.189
12 2026-08-21 01:58 639228741705571019
30 ms 204.16.247.189
11 2026-08-21 01:58 639228741705571019
30 ms 204.16.247.190
10 2026-08-21 01:41 639228731642208228
28 ms 204.16.247.189
9 2026-08-21 01:41 639228731642208228
28 ms 204.16.247.190
8 2026-08-21 00:49 639228700387002072
40 ms 204.16.247.189
7 2026-08-21 00:49 639228700387002072
40 ms 204.16.247.190
6 2026-08-21 00:33 639228690742014433
72 ms 204.16.247.189
5 2026-08-21 00:33 639228690742014433
72 ms 204.16.247.190
4 2026-08-21 00:17 639228680877937122
18 ms 204.16.247.189
3 2026-08-21 00:17 639228680877937122
18 ms 204.16.247.190
2 2026-08-21 00:00 639228670775860800
32 ms 204.16.247.189
1 2026-08-21 00:00 639228670775860800
32 ms 204.16.247.190