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 2026-08-23. For this date, NameServerHistory found 148 DNS check records, 146 successful responses, 2 failed responses, and 152 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

148

Historical checks stored for this nameserver on selected date

Average Latency

152 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-23 23:45

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

146

Checks that returned a measurable response

Failed Responses

2

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 ns4.cloudflare.com

Showing DNS history for 2026-08-23 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
148 2026-08-23 23:45 639231254406598736
9 ms 162.159.1.33
147 2026-08-23 23:45 639231254406598736
9 ms 162.159.8.55
146 2026-08-23 23:29 639231244697865594
17 ms 162.159.1.33
145 2026-08-23 23:29 639231244697865594
17 ms 162.159.8.55
144 2026-08-23 23:12 639231234893504693
19 ms 162.159.1.33
143 2026-08-23 23:12 639231234893504693
19 ms 162.159.8.55
142 2026-08-23 22:56 639231225024549139
24 ms 162.159.1.33
141 2026-08-23 22:56 639231225024549139
24 ms 162.159.8.55
140 2026-08-23 22:39 639231214931957622
10 ms 162.159.1.33
139 2026-08-23 22:39 639231214931957622
10 ms 162.159.8.55
138 2026-08-23 22:22 639231204962010549
33 ms 162.159.1.33
137 2026-08-23 22:22 639231204962010549
33 ms 162.159.8.55
136 2026-08-23 22:06 639231195170138463
32 ms 162.159.1.33
135 2026-08-23 22:06 639231195170138463
32 ms 162.159.8.55
134 2026-08-23 21:49 639231185235020577
4 ms 162.159.1.33
133 2026-08-23 21:49 639231185235020577
4 ms 162.159.8.55
132 2026-08-23 21:33 639231175558690075
12 ms 162.159.1.33
131 2026-08-23 21:33 639231175558690075
12 ms 162.159.8.55
130 2026-08-23 21:17 639231165610444012
4 ms 162.159.1.33
129 2026-08-23 21:17 639231165610444012
4 ms 162.159.8.55
128 2026-08-23 20:24 639231133806425363
18 ms 162.159.8.55
127 2026-08-23 20:24 639231133806425363
18 ms 162.159.1.33
126 2026-08-23 20:08 639231124203758023
24 ms 162.159.1.33
125 2026-08-23 20:08 639231124203758023
24 ms 162.159.8.55
124 2026-08-23 19:51 639231114428262706
21 ms 162.159.1.33
123 2026-08-23 19:51 639231114428262706
21 ms 162.159.8.55
122 2026-08-23 19:35 639231104662480065
6 ms 162.159.1.33
121 2026-08-23 19:35 639231104662480065
6 ms 162.159.8.55
120 2026-08-23 19:19 639231094840372018
12 ms 162.159.1.33
119 2026-08-23 19:19 639231094840372018
12 ms 162.159.8.55
118 2026-08-23 19:02 639231085024583224
10 ms 162.159.1.33
117 2026-08-23 19:02 639231085024583224
10 ms 162.159.8.55
116 2026-08-23 18:46 639231075257417427
3 ms 162.159.1.33
115 2026-08-23 18:46 639231075257417427
3 ms 162.159.8.55
114 2026-08-23 18:30 639231065516009503
4 ms 162.159.1.33
113 2026-08-23 18:30 639231065516009503
4 ms 162.159.8.55
112 2026-08-23 18:14 639231055805348837
7 ms 162.159.8.55
111 2026-08-23 18:14 639231055805348837
7 ms 162.159.1.33
110 2026-08-23 17:57 639231045980373765
4 ms 162.159.1.33
109 2026-08-23 17:57 639231045980373765
4 ms 162.159.8.55
108 2026-08-23 17:41 639231035984577527
41 ms 162.159.1.33
107 2026-08-23 17:41 639231035984577527
41 ms 162.159.8.55
106 2026-08-23 17:24 639231025928115303
14 ms 162.159.1.33
105 2026-08-23 17:24 639231025928115303
14 ms 162.159.8.55
104 2026-08-23 16:31 639230994250157583
20 ms 162.159.1.33
103 2026-08-23 16:31 639230994250157583
20 ms 162.159.8.55
102 2026-08-23 16:15 639230984476411369
7 ms 162.159.1.33
101 2026-08-23 16:15 639230984476411369
7 ms 162.159.8.55
100 2026-08-23 15:59 639230974838373450
5 ms 162.159.1.33
99 2026-08-23 15:59 639230974838373450
5 ms 162.159.8.55
98 2026-08-23 15:43 639230965244277645
52 ms 162.159.1.33
97 2026-08-23 15:43 639230965244277645
52 ms 162.159.8.55
96 2026-08-23 15:27 639230955522101820
47 ms 162.159.1.33
95 2026-08-23 15:27 639230955522101820
47 ms 162.159.8.55
94 2026-08-23 15:10 639230945754521603
4 ms 162.159.1.33
93 2026-08-23 15:10 639230945754521603
4 ms 162.159.8.55
92 2026-08-23 14:54 639230935852040504
2018 ms 162.159.8.55
91 2026-08-23 14:54 639230935852040504
2018 ms 162.159.1.33
90 2026-08-23 14:38 639230926222061048
-
89 2026-08-23 14:21 639230916449726907
9 ms 162.159.8.55
88 2026-08-23 14:21 639230916449726907
9 ms 162.159.1.33
87 2026-08-23 14:05 639230906595053086
20 ms 162.159.8.55
86 2026-08-23 14:05 639230906595053086
20 ms 162.159.1.33
85 2026-08-23 13:49 639230896680429441
57 ms 162.159.8.55
84 2026-08-23 13:49 639230896680429441
57 ms 162.159.1.33
83 2026-08-23 13:32 639230886630210965
9 ms 162.159.1.33
82 2026-08-23 13:32 639230886630210965
9 ms 162.159.8.55
81 2026-08-23 12:40 639230855430405719
2012 ms 162.159.1.33
80 2026-08-23 12:40 639230855430405719
2012 ms 162.159.8.55
79 2026-08-23 12:24 639230845707499136
5 ms 162.159.1.33
78 2026-08-23 12:24 639230845707499136
5 ms 162.159.8.55
77 2026-08-23 12:08 639230836186805419
19 ms 162.159.1.33
76 2026-08-23 12:08 639230836186805419
19 ms 162.159.8.55
75 2026-08-23 11:52 639230826493828316
26 ms 162.159.1.33
74 2026-08-23 11:52 639230826493828316
26 ms 162.159.8.55
73 2026-08-23 11:35 639230816817882996
10 ms 162.159.1.33
72 2026-08-23 11:35 639230816817882996
10 ms 162.159.8.55
71 2026-08-23 11:19 639230806933854189
2009 ms 162.159.1.33
70 2026-08-23 11:19 639230806933854189
2009 ms 162.159.8.55
69 2026-08-23 11:03 639230797120243854
10 ms 162.159.1.33
68 2026-08-23 11:03 639230797120243854
10 ms 162.159.8.55
67 2026-08-23 10:46 639230787310272840
15 ms 162.159.8.55
66 2026-08-23 10:46 639230787310272840
15 ms 162.159.1.33
65 2026-08-23 10:30 639230777600173142
27 ms 162.159.1.33
64 2026-08-23 10:30 639230777600173142
27 ms 162.159.8.55
63 2026-08-23 10:13 639230767665024593
3 ms 162.159.1.33
62 2026-08-23 10:13 639230767665024593
3 ms 162.159.8.55
61 2026-08-23 09:57 639230757720962293
13 ms 162.159.1.33
60 2026-08-23 09:57 639230757720962293
13 ms 162.159.8.55
59 2026-08-23 09:40 639230747722189784
9 ms 162.159.1.33
58 2026-08-23 09:40 639230747722189784
9 ms 162.159.8.55
57 2026-08-23 08:48 639230716313923480
18 ms 162.159.1.33
56 2026-08-23 08:48 639230716313923480
18 ms 162.159.8.55
55 2026-08-23 08:32 639230706813835990
8 ms 162.159.1.33
54 2026-08-23 08:32 639230706813835990
8 ms 162.159.8.55
53 2026-08-23 08:16 639230696871062203
24 ms 162.159.1.33
52 2026-08-23 08:16 639230696871062203
24 ms 162.159.8.55
51 2026-08-23 07:59 639230687142781616
6 ms 162.159.1.33
50 2026-08-23 07:59 639230687142781616
6 ms 162.159.8.55
49 2026-08-23 07:43 639230677432142227
14 ms 162.159.1.33
48 2026-08-23 07:43 639230677432142227
14 ms 162.159.8.55
47 2026-08-23 07:27 639230667686258061
33 ms 162.159.1.33
46 2026-08-23 07:27 639230667686258061
33 ms 162.159.8.55
45 2026-08-23 07:11 639230658039243685
5 ms 162.159.1.33
44 2026-08-23 07:11 639230658039243685
5 ms 162.159.8.55
43 2026-08-23 06:55 639230648468473803
13 ms 162.159.1.33
42 2026-08-23 06:55 639230648468473803
13 ms 162.159.8.55
41 2026-08-23 06:39 639230638829658294
4 ms 162.159.1.33
40 2026-08-23 06:39 639230638829658294
4 ms 162.159.8.55
39 2026-08-23 06:23 639230629247017617
4 ms 162.159.1.33
38 2026-08-23 06:23 639230629247017617
4 ms 162.159.8.55
37 2026-08-23 06:07 639230619625318239
6 ms 162.159.1.33
36 2026-08-23 06:07 639230619625318239
6 ms 162.159.8.55
35 2026-08-23 05:50 639230609697630264
7 ms 162.159.1.33
34 2026-08-23 05:50 639230609697630264
7 ms 162.159.8.55
33 2026-08-23 04:58 639230578570131864
9 ms 162.159.8.55
32 2026-08-23 04:58 639230578570131864
9 ms 162.159.1.33
31 2026-08-23 04:42 639230568958963168
22 ms 162.159.1.33
30 2026-08-23 04:42 639230568958963168
22 ms 162.159.8.55
29 2026-08-23 04:26 639230559287611211
4 ms 162.159.1.33
28 2026-08-23 04:26 639230559287611211
4 ms 162.159.8.55
27 2026-08-23 04:10 639230549524312030
23 ms 162.159.1.33
26 2026-08-23 04:10 639230549524312030
23 ms 162.159.8.55
25 2026-08-23 03:54 639230539739801669
3 ms 162.159.1.33
24 2026-08-23 03:54 639230539739801669
3 ms 162.159.8.55
23 2026-08-23 03:38 639230530084069375
11 ms 162.159.1.33
22 2026-08-23 03:38 639230530084069375
11 ms 162.159.8.55
21 2026-08-23 03:21 639230520362691441
8 ms 162.159.1.33
20 2026-08-23 03:21 639230520362691441
8 ms 162.159.8.55
19 2026-08-23 03:05 639230510677194518
7 ms 162.159.1.33
18 2026-08-23 03:05 639230510677194518
7 ms 162.159.8.55
17 2026-08-23 02:49 639230501156002646
8 ms 162.159.8.55
16 2026-08-23 02:49 639230501156002646
8 ms 162.159.1.33
15 2026-08-23 02:33 639230491502198541
43 ms 162.159.8.55
14 2026-08-23 02:33 639230491502198541
43 ms 162.159.1.33
13 2026-08-23 02:17 639230481860318494
5 ms 162.159.1.33
12 2026-08-23 02:17 639230481860318494
5 ms 162.159.8.55
11 2026-08-23 02:01 639230471893008575
4 ms 162.159.1.33
10 2026-08-23 02:01 639230471893008575
4 ms 162.159.8.55
9 2026-08-23 01:07 639230440030877421
-
8 2026-08-23 00:52 639230430479725508
2033 ms 162.159.1.33
7 2026-08-23 00:52 639230430479725508
2033 ms 162.159.8.55
6 2026-08-23 00:36 639230420875160219
2023 ms 162.159.1.33
5 2026-08-23 00:36 639230420875160219
2023 ms 162.159.8.55
4 2026-08-23 00:19 639230411240692575
34 ms 162.159.8.55
3 2026-08-23 00:19 639230411240692575
34 ms 162.159.1.33
2 2026-08-23 00:03 639230401550806607
4 ms 162.159.1.33
1 2026-08-23 00:03 639230401550806607
4 ms 162.159.8.55