DNS response history for ns4.cloudflare.com

ns4.cloudflare.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 2026-08-10. For this date, NameServerHistory found 161 DNS check records, 158 successful responses, 3 failed responses, and 276 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 ns4.cloudflare.com.
Records on Selected Date

161

Historical checks stored for this nameserver on selected date

Average Latency

276 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-10 23:54

All timestamps shown in UTC

Latest Resolved IP on Selected Date

162.159.1.33

Most recently resolved hosting IP on selected date

Successful Responses

158

Checks that returned a measurable response

Failed Responses

3

Checks with no response or no returned latency

Failure Rate

2%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for ns4.cloudflare.com

Showing DNS history for 2026-08-10 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
161 2026-08-10 23:54 639220027366289509
2009 ms 162.159.1.33
160 2026-08-10 23:54 639220027366289509
2009 ms 162.159.8.55
159 2026-08-10 23:39 639220018272941900
34 ms 162.159.1.33
158 2026-08-10 23:39 639220018272941900
34 ms 162.159.8.55
157 2026-08-10 23:23 639220009109892969
67 ms 162.159.1.33
156 2026-08-10 23:23 639220009109892969
67 ms 162.159.8.55
155 2026-08-10 23:08 639220000040489788
2016 ms 162.159.8.55
154 2026-08-10 23:08 639220000040489788
2016 ms 162.159.1.33
153 2026-08-10 22:54 639219991197135747
4 ms 162.159.1.33
152 2026-08-10 22:54 639219991197135747
4 ms 162.159.8.55
151 2026-08-10 22:38 639219982104540014
74 ms 162.159.8.55
150 2026-08-10 22:38 639219982104540014
74 ms 162.159.1.33
149 2026-08-10 22:23 639219973150300215
24 ms 162.159.1.33
148 2026-08-10 22:23 639219973150300215
24 ms 162.159.8.55
147 2026-08-10 22:09 639219964188486697
2030 ms 162.159.8.55
146 2026-08-10 22:09 639219964188486697
2030 ms 162.159.1.33
145 2026-08-10 21:53 639219954995921784
7 ms 162.159.1.33
144 2026-08-10 21:53 639219954995921784
7 ms 162.159.8.55
143 2026-08-10 21:38 639219945559908104
19 ms 162.159.1.33
142 2026-08-10 21:38 639219945559908104
19 ms 162.159.8.55
141 2026-08-10 20:46 639219914137782273
9 ms 162.159.1.33
140 2026-08-10 20:46 639219914137782273
9 ms 162.159.8.55
139 2026-08-10 20:30 639219904858355064
20 ms 162.159.1.33
138 2026-08-10 20:30 639219904858355064
20 ms 162.159.8.55
137 2026-08-10 20:15 639219895655263396
46 ms 162.159.1.33
136 2026-08-10 20:15 639219895655263396
46 ms 162.159.8.55
135 2026-08-10 20:00 639219886527091074
9 ms 162.159.1.33
134 2026-08-10 20:00 639219886527091074
9 ms 162.159.8.55
133 2026-08-10 19:44 639219877343266628
27 ms 162.159.1.33
132 2026-08-10 19:44 639219877343266628
27 ms 162.159.8.55
131 2026-08-10 19:29 639219868177358195
16 ms 162.159.1.33
130 2026-08-10 19:29 639219868177358195
16 ms 162.159.8.55
129 2026-08-10 19:14 639219859159581515
2013 ms 162.159.1.33
128 2026-08-10 19:14 639219859159581515
2013 ms 162.159.8.55
127 2026-08-10 18:59 639219850124020182
28 ms 162.159.8.55
126 2026-08-10 18:59 639219850124020182
28 ms 162.159.1.33
125 2026-08-10 18:43 639219840940124840
14 ms 162.159.8.55
124 2026-08-10 18:43 639219840940124840
14 ms 162.159.1.33
123 2026-08-10 18:28 639219831829876486
35 ms 162.159.1.33
122 2026-08-10 18:28 639219831829876486
35 ms 162.159.8.55
121 2026-08-10 18:13 639219822587759143
7 ms 162.159.8.55
120 2026-08-10 18:13 639219822587759143
7 ms 162.159.1.33
119 2026-08-10 17:57 639219813247114428
16 ms 162.159.8.55
118 2026-08-10 17:57 639219813247114428
16 ms 162.159.1.33
117 2026-08-10 17:05 639219781959606396
29 ms 162.159.1.33
116 2026-08-10 17:05 639219781959606396
29 ms 162.159.8.55
115 2026-08-10 16:49 639219772658305431
13 ms 162.159.1.33
114 2026-08-10 16:49 639219772658305431
13 ms 162.159.8.55
113 2026-08-10 16:34 639219763454523027
2017 ms 162.159.1.33
112 2026-08-10 16:34 639219763454523027
2017 ms 162.159.8.55
111 2026-08-10 16:18 639219754279127815
2036 ms 162.159.1.33
110 2026-08-10 16:18 639219754279127815
2036 ms 162.159.8.55
109 2026-08-10 16:03 639219745087467767
6 ms 162.159.1.33
108 2026-08-10 16:03 639219745087467767
6 ms 162.159.8.55
107 2026-08-10 15:48 639219735900678107
2009 ms 162.159.8.55
106 2026-08-10 15:48 639219735900678107
2009 ms 162.159.1.33
105 2026-08-10 15:32 639219726531461979
5 ms 162.159.1.33
104 2026-08-10 15:32 639219726531461979
5 ms 162.159.8.55
103 2026-08-10 15:17 639219717415222156
7 ms 162.159.1.33
102 2026-08-10 15:17 639219717415222156
7 ms 162.159.8.55
101 2026-08-10 15:02 639219708266470863
9 ms 162.159.1.33
100 2026-08-10 15:02 639219708266470863
9 ms 162.159.8.55
99 2026-08-10 14:46 639219699049479559
38 ms 162.159.8.55
98 2026-08-10 14:46 639219699049479559
38 ms 162.159.1.33
97 2026-08-10 14:31 639219689775815194
9 ms 162.159.1.33
96 2026-08-10 14:31 639219689775815194
9 ms 162.159.8.55
95 2026-08-10 14:16 639219680511810632
4 ms 162.159.1.33
94 2026-08-10 14:16 639219680511810632
4 ms 162.159.8.55
93 2026-08-10 13:22 639219648997191257
6 ms 162.159.1.33
92 2026-08-10 13:22 639219648997191257
6 ms 162.159.8.55
91 2026-08-10 13:07 639219639938909436
-
90 2026-08-10 12:52 639219630718286441
6 ms 162.159.1.33
89 2026-08-10 12:52 639219630718286441
6 ms 162.159.8.55
88 2026-08-10 12:36 639219621472350410
34 ms 162.159.1.33
87 2026-08-10 12:36 639219621472350410
34 ms 162.159.8.55
86 2026-08-10 12:21 639219612500421992
11 ms 162.159.8.55
85 2026-08-10 12:21 639219612500421992
11 ms 162.159.1.33
84 2026-08-10 12:06 639219603383833445
10 ms 162.159.1.33
83 2026-08-10 12:06 639219603383833445
10 ms 162.159.8.55
82 2026-08-10 11:51 639219594143823358
33 ms 162.159.1.33
81 2026-08-10 11:51 639219594143823358
33 ms 162.159.8.55
80 2026-08-10 11:36 639219585053166024
-
79 2026-08-10 11:20 639219575885776644
27 ms 162.159.1.33
78 2026-08-10 11:20 639219575885776644
27 ms 162.159.8.55
77 2026-08-10 11:05 639219566844532361
67 ms 162.159.1.33
76 2026-08-10 11:05 639219566844532361
67 ms 162.159.8.55
75 2026-08-10 10:50 639219557705808294
40 ms 162.159.1.33
74 2026-08-10 10:50 639219557705808294
40 ms 162.159.8.55
73 2026-08-10 10:34 639219548482688649
48 ms 162.159.8.55
72 2026-08-10 10:34 639219548482688649
48 ms 162.159.1.33
71 2026-08-10 09:43 639219517492763539
13 ms 162.159.8.55
70 2026-08-10 09:43 639219517492763539
13 ms 162.159.1.33
69 2026-08-10 09:28 639219508755773605
7 ms 162.159.1.33
68 2026-08-10 09:28 639219508755773605
7 ms 162.159.8.55
67 2026-08-10 09:14 639219499852103863
2031 ms 162.159.1.33
66 2026-08-10 09:14 639219499852103863
2031 ms 162.159.8.55
65 2026-08-10 08:59 639219490893714387
21 ms 162.159.1.33
64 2026-08-10 08:59 639219490893714387
21 ms 162.159.8.55
63 2026-08-10 08:44 639219482299305521
13 ms 162.159.1.33
62 2026-08-10 08:44 639219482299305521
13 ms 162.159.8.55
61 2026-08-10 08:30 639219473613114853
5 ms 162.159.1.33
60 2026-08-10 08:30 639219473613114853
5 ms 162.159.8.55
59 2026-08-10 08:15 639219465061138643
62 ms 162.159.1.33
58 2026-08-10 08:15 639219465061138643
62 ms 162.159.8.55
57 2026-08-10 08:01 639219456616129015
16 ms 162.159.1.33
56 2026-08-10 08:01 639219456616129015
16 ms 162.159.8.55
55 2026-08-10 07:47 639219447974008557
17 ms 162.159.8.55
54 2026-08-10 07:47 639219447974008557
17 ms 162.159.1.33
53 2026-08-10 07:33 639219439498255213
24 ms 162.159.8.55
52 2026-08-10 07:33 639219439498255213
24 ms 162.159.1.33
51 2026-08-10 07:18 639219430664872256
4 ms 162.159.1.33
50 2026-08-10 07:18 639219430664872256
4 ms 162.159.8.55
49 2026-08-10 07:03 639219421757560037
37 ms 162.159.8.55
48 2026-08-10 07:03 639219421757560037
37 ms 162.159.1.33
47 2026-08-10 06:12 639219390773218684
17 ms 162.159.8.55
46 2026-08-10 06:12 639219390773218684
17 ms 162.159.1.33
45 2026-08-10 05:58 639219382205367722
53 ms 162.159.8.55
44 2026-08-10 05:58 639219382205367722
53 ms 162.159.1.33
43 2026-08-10 05:43 639219373711937615
5 ms 162.159.1.33
42 2026-08-10 05:43 639219373711937615
5 ms 162.159.8.55
41 2026-08-10 05:29 639219365088558404
12 ms 162.159.1.33
40 2026-08-10 05:29 639219365088558404
12 ms 162.159.8.55
39 2026-08-10 05:14 639219356348833255
40 ms 162.159.1.33
38 2026-08-10 05:14 639219356348833255
40 ms 162.159.8.55
37 2026-08-10 05:00 639219347860053478
4 ms 162.159.1.33
36 2026-08-10 05:00 639219347860053478
4 ms 162.159.8.55
35 2026-08-10 04:46 639219339173195121
21 ms 162.159.1.33
34 2026-08-10 04:46 639219339173195121
21 ms 162.159.8.55
33 2026-08-10 04:32 639219330642664669
2008 ms 162.159.8.55
32 2026-08-10 04:32 639219330642664669
2008 ms 162.159.1.33
31 2026-08-10 04:17 639219322058698995
81 ms 162.159.1.33
30 2026-08-10 04:17 639219322058698995
81 ms 162.159.8.55
29 2026-08-10 04:03 639219313564344199
23 ms 162.159.1.33
28 2026-08-10 04:03 639219313564344199
23 ms 162.159.8.55
27 2026-08-10 03:48 639219304775113236
49 ms 162.159.1.33
26 2026-08-10 03:48 639219304775113236
49 ms 162.159.8.55
25 2026-08-10 03:33 639219295706181119
43 ms 162.159.1.33
24 2026-08-10 03:33 639219295706181119
43 ms 162.159.8.55
23 2026-08-10 02:41 639219264663923254
16 ms 162.159.1.33
22 2026-08-10 02:41 639219264663923254
16 ms 162.159.8.55
21 2026-08-10 02:27 639219256015178099
19 ms 162.159.1.33
20 2026-08-10 02:27 639219256015178099
19 ms 162.159.8.55
19 2026-08-10 02:13 639219247509540188
28 ms 162.159.8.55
18 2026-08-10 02:13 639219247509540188
28 ms 162.159.1.33
17 2026-08-10 01:58 639219238999539092
2037 ms 162.159.8.55
16 2026-08-10 01:58 639219238999539092
2037 ms 162.159.1.33
15 2026-08-10 01:44 639219230498823902
7 ms 162.159.1.33
14 2026-08-10 01:44 639219230498823902
7 ms 162.159.8.55
13 2026-08-10 01:30 639219221706460911
32 ms 162.159.8.55
12 2026-08-10 01:30 639219221706460911
32 ms 162.159.1.33
11 2026-08-10 01:15 639219212930606887
-
10 2026-08-10 01:01 639219204307908525
9 ms 162.159.8.55
9 2026-08-10 01:01 639219204307908525
9 ms 162.159.1.33
8 2026-08-10 00:46 639219195720181470
3 ms 162.159.1.33
7 2026-08-10 00:46 639219195720181470
3 ms 162.159.8.55
6 2026-08-10 00:32 639219186898174002
16 ms 162.159.1.33
5 2026-08-10 00:32 639219186898174002
16 ms 162.159.8.55
4 2026-08-10 00:17 639219178004946976
8 ms 162.159.1.33
3 2026-08-10 00:17 639219178004946976
8 ms 162.159.8.55
2 2026-08-10 00:02 639219168958805474
33 ms 162.159.1.33
1 2026-08-10 00:02 639219168958805474
33 ms 162.159.8.55