DNS response history for dns2.u4c.com

dns2.u4c.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 2026-08-25. For this date, NameServerHistory found 137 DNS check records, 136 successful responses, 1 failed responses, and 268 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 dns2.u4c.com.
Records on Selected Date

137

Historical checks stored for this nameserver on selected date

Average Latency

268 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-25 23:49

All timestamps shown in UTC

Latest Resolved IP on Selected Date

104.21.14.197

Most recently resolved hosting IP on selected date

Successful Responses

136

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 dns2.u4c.com

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
137 2026-08-25 23:49 639232985300872416
29 ms 104.21.14.197
136 2026-08-25 23:49 639232985300872416
29 ms 172.67.160.77
135 2026-08-25 23:31 639232974980190573
2024 ms 172.67.160.77
134 2026-08-25 23:31 639232974980190573
2024 ms 104.21.14.197
133 2026-08-25 23:14 639232964577050707
20 ms 104.21.14.197
132 2026-08-25 23:14 639232964577050707
20 ms 172.67.160.77
131 2026-08-25 22:20 639232932163142799
37 ms 104.21.14.197
130 2026-08-25 22:20 639232932163142799
37 ms 172.67.160.77
129 2026-08-25 22:03 639232921673215474
11 ms 104.21.14.197
128 2026-08-25 22:03 639232921673215474
11 ms 172.67.160.77
127 2026-08-25 21:45 639232911234504639
26 ms 104.21.14.197
126 2026-08-25 21:45 639232911234504639
26 ms 172.67.160.77
125 2026-08-25 21:28 639232900747078453
12 ms 104.21.14.197
124 2026-08-25 21:28 639232900747078453
12 ms 172.67.160.77
123 2026-08-25 21:10 639232890389222534
43 ms 172.67.160.77
122 2026-08-25 21:10 639232890389222534
43 ms 104.21.14.197
121 2026-08-25 20:53 639232880143390843
55 ms 172.67.160.77
120 2026-08-25 20:53 639232880143390843
55 ms 104.21.14.197
119 2026-08-25 20:36 639232869755024069
65 ms 104.21.14.197
118 2026-08-25 20:36 639232869755024069
65 ms 172.67.160.77
117 2026-08-25 20:19 639232859355940346
22 ms 172.67.160.77
116 2026-08-25 20:19 639232859355940346
22 ms 104.21.14.197
115 2026-08-25 20:01 639232848992244953
23 ms 104.21.14.197
114 2026-08-25 20:01 639232848992244953
23 ms 172.67.160.77
113 2026-08-25 19:44 639232838596478500
13 ms 104.21.14.197
112 2026-08-25 19:44 639232838596478500
13 ms 172.67.160.77
111 2026-08-25 19:27 639232828175327683
15 ms 172.67.160.77
110 2026-08-25 19:27 639232828175327683
15 ms 104.21.14.197
109 2026-08-25 19:09 639232817798330473
30 ms 172.67.160.77
108 2026-08-25 19:09 639232817798330473
30 ms 104.21.14.197
107 2026-08-25 18:16 639232785462407552
26 ms 104.21.14.197
106 2026-08-25 18:16 639232785462407552
26 ms 172.67.160.77
105 2026-08-25 17:58 639232775177487032
20 ms 104.21.14.197
104 2026-08-25 17:58 639232775177487032
20 ms 172.67.160.77
103 2026-08-25 17:41 639232764991087115
49 ms 172.67.160.77
102 2026-08-25 17:41 639232764991087115
49 ms 104.21.14.197
101 2026-08-25 17:25 639232754842971478
15 ms 172.67.160.77
100 2026-08-25 17:25 639232754842971478
15 ms 104.21.14.197
99 2026-08-25 17:07 639232744455159107
12 ms 172.67.160.77
98 2026-08-25 17:07 639232744455159107
12 ms 104.21.14.197
97 2026-08-25 16:50 639232734145178231
4070 ms 104.21.14.197
96 2026-08-25 16:50 639232734145178231
4070 ms 172.67.160.77
95 2026-08-25 16:33 639232723827874402
92 ms 172.67.160.77
94 2026-08-25 16:33 639232723827874402
92 ms 104.21.14.197
93 2026-08-25 16:16 639232713533011892
22 ms 104.21.14.197
92 2026-08-25 16:16 639232713533011892
22 ms 172.67.160.77
91 2026-08-25 15:58 639232703065318207
49 ms 172.67.160.77
90 2026-08-25 15:58 639232703065318207
49 ms 104.21.14.197
89 2026-08-25 15:41 639232692629559470
12 ms 172.67.160.77
88 2026-08-25 15:41 639232692629559470
12 ms 104.21.14.197
87 2026-08-25 15:24 639232682238836475
22 ms 104.21.14.197
86 2026-08-25 15:24 639232682238836475
22 ms 172.67.160.77
85 2026-08-25 15:06 639232671787004306
17 ms 172.67.160.77
84 2026-08-25 15:06 639232671787004306
17 ms 104.21.14.197
83 2026-08-25 14:11 639232638994329666
34 ms 172.67.160.77
82 2026-08-25 14:11 639232638994329666
34 ms 104.21.14.197
81 2026-08-25 13:54 639232628614783237
36 ms 172.67.160.77
80 2026-08-25 13:54 639232628614783237
36 ms 104.21.14.197
79 2026-08-25 13:37 639232618360728578
25 ms 104.21.14.197
78 2026-08-25 13:37 639232618360728578
25 ms 172.67.160.77
77 2026-08-25 13:20 639232608016476376
36 ms 104.21.14.197
76 2026-08-25 13:20 639232608016476376
36 ms 172.67.160.77
75 2026-08-25 13:03 639232597643611557
19 ms 172.67.160.77
74 2026-08-25 13:03 639232597643611557
19 ms 104.21.14.197
73 2026-08-25 12:45 639232587225721862
19 ms 172.67.160.77
72 2026-08-25 12:45 639232587225721862
19 ms 104.21.14.197
71 2026-08-25 12:28 639232576780683689
43 ms 172.67.160.77
70 2026-08-25 12:28 639232576780683689
43 ms 104.21.14.197
69 2026-08-25 12:10 639232566381512620
4024 ms 172.67.160.77
68 2026-08-25 12:10 639232566381512620
4024 ms 104.21.14.197
67 2026-08-25 11:53 639232556111768563
11 ms 172.67.160.77
66 2026-08-25 11:53 639232556111768563
11 ms 104.21.14.197
65 2026-08-25 11:36 639232545839529039
22 ms 104.21.14.197
64 2026-08-25 11:36 639232545839529039
22 ms 172.67.160.77
63 2026-08-25 11:19 639232535349285207
39 ms 172.67.160.77
62 2026-08-25 11:19 639232535349285207
39 ms 104.21.14.197
61 2026-08-25 11:01 639232524938080723
13 ms 172.67.160.77
60 2026-08-25 11:01 639232524938080723
13 ms 104.21.14.197
59 2026-08-25 10:08 639232492740373468
45 ms 104.21.14.197
58 2026-08-25 10:08 639232492740373468
45 ms 172.67.160.77
57 2026-08-25 09:50 639232482235303141
140 ms 172.67.160.77
56 2026-08-25 09:50 639232482235303141
140 ms 104.21.14.197
55 2026-08-25 09:33 639232471861770303
41 ms 172.67.160.77
54 2026-08-25 09:33 639232471861770303
41 ms 104.21.14.197
53 2026-08-25 09:16 639232461630217327
18 ms 172.67.160.77
52 2026-08-25 09:16 639232461630217327
18 ms 104.21.14.197
51 2026-08-25 08:59 639232451282965990
37 ms 104.21.14.197
50 2026-08-25 08:59 639232451282965990
37 ms 172.67.160.77
49 2026-08-25 08:41 639232440814614938
14 ms 172.67.160.77
48 2026-08-25 08:41 639232440814614938
14 ms 104.21.14.197
47 2026-08-25 08:24 639232430410720425
22 ms 104.21.14.197
46 2026-08-25 08:24 639232430410720425
22 ms 172.67.160.77
45 2026-08-25 08:06 639232420003096185
20 ms 172.67.160.77
44 2026-08-25 08:06 639232420003096185
20 ms 104.21.14.197
43 2026-08-25 07:49 639232409467287444
13 ms 104.21.14.197
42 2026-08-25 07:49 639232409467287444
13 ms 172.67.160.77
41 2026-08-25 07:32 639232399077195997
42 ms 104.21.14.197
40 2026-08-25 07:32 639232399077195997
42 ms 172.67.160.77
39 2026-08-25 07:14 639232388731528337
-
38 2026-08-25 06:57 639232378288598612
67 ms 104.21.14.197
37 2026-08-25 06:57 639232378288598612
67 ms 172.67.160.77
36 2026-08-25 06:03 639232346196373643
29 ms 172.67.160.77
35 2026-08-25 06:03 639232346196373643
29 ms 104.21.14.197
34 2026-08-25 05:47 639232336112370741
90 ms 172.67.160.77
33 2026-08-25 05:47 639232336112370741
90 ms 104.21.14.197
32 2026-08-25 05:30 639232326146508970
34 ms 104.21.14.197
31 2026-08-25 05:30 639232326146508970
34 ms 172.67.160.77
30 2026-08-25 05:13 639232316189381720
23 ms 172.67.160.77
29 2026-08-25 05:13 639232316189381720
23 ms 104.21.14.197
28 2026-08-25 04:57 639232306217998913
14 ms 104.21.14.197
27 2026-08-25 04:57 639232306217998913
14 ms 172.67.160.77
26 2026-08-25 04:40 639232296255744174
87 ms 172.67.160.77
25 2026-08-25 04:40 639232296255744174
87 ms 104.21.14.197
24 2026-08-25 04:23 639232286095760789
8 ms 172.67.160.77
23 2026-08-25 04:23 639232286095760789
8 ms 104.21.14.197
22 2026-08-25 04:07 639232276086186273
20 ms 104.21.14.197
21 2026-08-25 04:07 639232276086186273
20 ms 172.67.160.77
20 2026-08-25 03:50 639232265900986425
11 ms 104.21.14.197
19 2026-08-25 03:50 639232265900986425
11 ms 172.67.160.77
18 2026-08-25 03:33 639232255723518075
21 ms 172.67.160.77
17 2026-08-25 03:33 639232255723518075
21 ms 104.21.14.197
16 2026-08-25 03:16 639232245484452890
2015 ms 172.67.160.77
15 2026-08-25 03:16 639232245484452890
2015 ms 104.21.14.197
14 2026-08-25 02:58 639232235157175331
10 ms 104.21.14.197
13 2026-08-25 02:58 639232235157175331
10 ms 172.67.160.77
12 2026-08-25 02:05 639232203197189095
67 ms 104.21.14.197
11 2026-08-25 02:05 639232203197189095
67 ms 172.67.160.77
10 2026-08-25 01:48 639232192844564298
4030 ms 104.21.14.197
9 2026-08-25 01:48 639232192844564298
4030 ms 172.67.160.77
8 2026-08-25 01:31 639232182496008942
8 ms 104.21.14.197
7 2026-08-25 01:31 639232182496008942
8 ms 172.67.160.77
6 2026-08-25 01:13 639232172197053132
61 ms 172.67.160.77
5 2026-08-25 01:13 639232172197053132
61 ms 104.21.14.197
4 2026-08-25 00:20 639232140250307418
14 ms 172.67.160.77
3 2026-08-25 00:20 639232140250307418
14 ms 104.21.14.197
2 2026-08-25 00:03 639232129927860324
39 ms 104.21.14.197
1 2026-08-25 00:03 639232129927860324
39 ms 172.67.160.77