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 2026-08-17. For this date, NameServerHistory found 143 DNS check records, 142 successful responses, 1 failed responses, and 114 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

143

Historical checks stored for this nameserver on selected date

Average Latency

114 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-17 23:48

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

142

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 ns4.cloudflare.com

Showing DNS history for 2026-08-17 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
143 2026-08-17 23:48 639226072268080268
52 ms 162.159.1.33
142 2026-08-17 23:48 639226072268080268
52 ms 162.159.8.55
141 2026-08-17 23:32 639226062577647657
13 ms 162.159.1.33
140 2026-08-17 23:32 639226062577647657
13 ms 162.159.8.55
139 2026-08-17 22:39 639226031060857136
2034 ms 162.159.1.33
138 2026-08-17 22:39 639226031060857136
2034 ms 162.159.8.55
137 2026-08-17 22:23 639226021535117364
4 ms 162.159.1.33
136 2026-08-17 22:23 639226021535117364
4 ms 162.159.8.55
135 2026-08-17 22:07 639226011884237078
6 ms 162.159.1.33
134 2026-08-17 22:07 639226011884237078
6 ms 162.159.8.55
133 2026-08-17 21:51 639226002309299142
4 ms 162.159.1.33
132 2026-08-17 21:51 639226002309299142
4 ms 162.159.8.55
131 2026-08-17 21:35 639225992791784448
4 ms 162.159.1.33
130 2026-08-17 21:35 639225992791784448
4 ms 162.159.8.55
129 2026-08-17 21:19 639225983045271390
20 ms 162.159.1.33
128 2026-08-17 21:19 639225983045271390
20 ms 162.159.8.55
127 2026-08-17 21:03 639225973246293513
30 ms 162.159.1.33
126 2026-08-17 21:03 639225973246293513
30 ms 162.159.8.55
125 2026-08-17 20:47 639225963620186236
35 ms 162.159.1.33
124 2026-08-17 20:47 639225963620186236
35 ms 162.159.8.55
123 2026-08-17 20:31 639225953899183916
12 ms 162.159.1.33
122 2026-08-17 20:31 639225953899183916
12 ms 162.159.8.55
121 2026-08-17 20:15 639225944391528206
34 ms 162.159.1.33
120 2026-08-17 20:15 639225944391528206
34 ms 162.159.8.55
119 2026-08-17 19:58 639225934593254169
31 ms 162.159.1.33
118 2026-08-17 19:58 639225934593254169
31 ms 162.159.8.55
117 2026-08-17 19:42 639225924669984512
24 ms 162.159.1.33
116 2026-08-17 19:42 639225924669984512
24 ms 162.159.8.55
115 2026-08-17 18:49 639225893048561320
76 ms 162.159.1.33
114 2026-08-17 18:49 639225893048561320
76 ms 162.159.8.55
113 2026-08-17 18:33 639225883481298424
37 ms 162.159.1.33
112 2026-08-17 18:33 639225883481298424
37 ms 162.159.8.55
111 2026-08-17 18:17 639225873845394034
13 ms 162.159.1.33
110 2026-08-17 18:17 639225873845394034
13 ms 162.159.8.55
109 2026-08-17 18:01 639225864216078662
36 ms 162.159.1.33
108 2026-08-17 18:01 639225864216078662
36 ms 162.159.8.55
107 2026-08-17 17:45 639225854541857773
14 ms 162.159.8.55
106 2026-08-17 17:45 639225854541857773
14 ms 162.159.1.33
105 2026-08-17 17:29 639225844733604072
27 ms 162.159.1.33
104 2026-08-17 17:29 639225844733604072
27 ms 162.159.8.55
103 2026-08-17 17:13 639225835085229232
18 ms 162.159.1.33
102 2026-08-17 17:13 639225835085229232
18 ms 162.159.8.55
101 2026-08-17 16:56 639225825349373981
30 ms 162.159.8.55
100 2026-08-17 16:56 639225825349373981
30 ms 162.159.1.33
99 2026-08-17 16:40 639225815690604161
38 ms 162.159.1.33
98 2026-08-17 16:40 639225815690604161
38 ms 162.159.8.55
97 2026-08-17 16:24 639225805952472306
44 ms 162.159.1.33
96 2026-08-17 16:24 639225805952472306
44 ms 162.159.8.55
95 2026-08-17 16:08 639225796264729638
6 ms 162.159.1.33
94 2026-08-17 16:08 639225796264729638
6 ms 162.159.8.55
93 2026-08-17 15:51 639225786326499329
32 ms 162.159.1.33
92 2026-08-17 15:51 639225786326499329
32 ms 162.159.8.55
91 2026-08-17 14:59 639225754798130711
5 ms 162.159.1.33
90 2026-08-17 14:59 639225754798130711
5 ms 162.159.8.55
89 2026-08-17 14:43 639225745123193922
25 ms 162.159.1.33
88 2026-08-17 14:43 639225745123193922
25 ms 162.159.8.55
87 2026-08-17 14:27 639225735540597271
37 ms 162.159.8.55
86 2026-08-17 14:27 639225735540597271
37 ms 162.159.1.33
85 2026-08-17 14:11 639225725894857396
27 ms 162.159.1.33
84 2026-08-17 14:11 639225725894857396
27 ms 162.159.8.55
83 2026-08-17 13:54 639225716249606913
7 ms 162.159.1.33
82 2026-08-17 13:54 639225716249606913
7 ms 162.159.8.55
81 2026-08-17 13:38 639225706638238179
8 ms 162.159.1.33
80 2026-08-17 13:38 639225706638238179
8 ms 162.159.8.55
79 2026-08-17 13:22 639225696949691423
15 ms 162.159.1.33
78 2026-08-17 13:22 639225696949691423
15 ms 162.159.8.55
77 2026-08-17 13:06 639225687286186336
42 ms 162.159.1.33
76 2026-08-17 13:06 639225687286186336
42 ms 162.159.8.55
75 2026-08-17 12:50 639225677679573133
38 ms 162.159.8.55
74 2026-08-17 12:50 639225677679573133
38 ms 162.159.1.33
73 2026-08-17 12:34 639225667957861024
55 ms 162.159.1.33
72 2026-08-17 12:34 639225667957861024
55 ms 162.159.8.55
71 2026-08-17 12:18 639225658298791618
41 ms 162.159.1.33
70 2026-08-17 12:18 639225658298791618
41 ms 162.159.8.55
69 2026-08-17 12:02 639225648583652785
22 ms 162.159.8.55
68 2026-08-17 12:02 639225648583652785
22 ms 162.159.1.33
67 2026-08-17 11:09 639225617000524308
4 ms 162.159.1.33
66 2026-08-17 11:09 639225617000524308
4 ms 162.159.8.55
65 2026-08-17 10:53 639225607668541600
5 ms 162.159.1.33
64 2026-08-17 10:53 639225607668541600
5 ms 162.159.8.55
63 2026-08-17 10:37 639225598117279238
15 ms 162.159.1.33
62 2026-08-17 10:37 639225598117279238
15 ms 162.159.8.55
61 2026-08-17 10:22 639225588751002710
17 ms 162.159.1.33
60 2026-08-17 10:22 639225588751002710
17 ms 162.159.8.55
59 2026-08-17 10:06 639225579295831051
18 ms 162.159.1.33
58 2026-08-17 10:06 639225579295831051
18 ms 162.159.8.55
57 2026-08-17 09:50 639225569761469940
4 ms 162.159.1.33
56 2026-08-17 09:50 639225569761469940
4 ms 162.159.8.55
55 2026-08-17 09:34 639225560161422333
9 ms 162.159.1.33
54 2026-08-17 09:34 639225560161422333
9 ms 162.159.8.55
53 2026-08-17 09:19 639225550739955565
73 ms 162.159.8.55
52 2026-08-17 09:19 639225550739955565
73 ms 162.159.1.33
51 2026-08-17 09:03 639225541125222426
21 ms 162.159.1.33
50 2026-08-17 09:03 639225541125222426
21 ms 162.159.8.55
49 2026-08-17 08:47 639225531526675983
10 ms 162.159.8.55
48 2026-08-17 08:47 639225531526675983
10 ms 162.159.1.33
47 2026-08-17 08:31 639225521915528222
433 ms 162.159.1.33
46 2026-08-17 08:31 639225521915528222
433 ms 162.159.8.55
45 2026-08-17 08:14 639225512148151789
9 ms 162.159.1.33
44 2026-08-17 08:14 639225512148151789
9 ms 162.159.8.55
43 2026-08-17 07:22 639225480786142412
11 ms 162.159.8.55
42 2026-08-17 07:22 639225480786142412
11 ms 162.159.1.33
41 2026-08-17 07:06 639225471394348551
62 ms 162.159.1.33
40 2026-08-17 07:06 639225471394348551
62 ms 162.159.8.55
39 2026-08-17 06:51 639225462031685068
6 ms 162.159.1.33
38 2026-08-17 06:51 639225462031685068
6 ms 162.159.8.55
37 2026-08-17 06:35 639225452639458328
44 ms 162.159.1.33
36 2026-08-17 06:35 639225452639458328
44 ms 162.159.8.55
35 2026-08-17 06:19 639225443300966543
37 ms 162.159.1.33
34 2026-08-17 06:19 639225443300966543
37 ms 162.159.8.55
33 2026-08-17 06:04 639225433880499379
37 ms 162.159.1.33
32 2026-08-17 06:04 639225433880499379
37 ms 162.159.8.55
31 2026-08-17 05:48 639225424395198277
27 ms 162.159.8.55
30 2026-08-17 05:48 639225424395198277
27 ms 162.159.1.33
29 2026-08-17 05:32 639225414744137487
39 ms 162.159.1.33
28 2026-08-17 05:32 639225414744137487
39 ms 162.159.8.55
27 2026-08-17 05:16 639225405186783164
3 ms 162.159.1.33
26 2026-08-17 05:16 639225405186783164
3 ms 162.159.8.55
25 2026-08-17 05:00 639225395563669822
32 ms 162.159.1.33
24 2026-08-17 05:00 639225395563669822
32 ms 162.159.8.55
23 2026-08-17 04:44 639225386076645158
41 ms 162.159.1.33
22 2026-08-17 04:44 639225386076645158
41 ms 162.159.8.55
21 2026-08-17 04:28 639225376620669704
4 ms 162.159.1.33
20 2026-08-17 04:28 639225376620669704
4 ms 162.159.8.55
19 2026-08-17 03:37 639225345580892706
20 ms 162.159.8.55
18 2026-08-17 03:37 639225345580892706
20 ms 162.159.1.33
17 2026-08-17 03:21 639225336207383710
15 ms 162.159.1.33
16 2026-08-17 03:21 639225336207383710
15 ms 162.159.8.55
15 2026-08-17 03:05 639225326726565001
2028 ms 162.159.1.33
14 2026-08-17 03:05 639225326726565001
2028 ms 162.159.8.55
13 2026-08-17 02:49 639225317249271010
13 ms 162.159.1.33
12 2026-08-17 02:49 639225317249271010
13 ms 162.159.8.55
11 2026-08-17 01:58 639225286280886044
3 ms 162.159.1.33
10 2026-08-17 01:58 639225286280886044
3 ms 162.159.8.55
9 2026-08-17 01:42 639225276872567548
4 ms 162.159.1.33
8 2026-08-17 01:42 639225276872567548
4 ms 162.159.8.55
7 2026-08-17 01:26 639225267353865348
2070 ms 162.159.1.33
6 2026-08-17 01:26 639225267353865348
2070 ms 162.159.8.55
5 2026-08-17 01:11 639225258033914248
5 ms 162.159.1.33
4 2026-08-17 01:11 639225258033914248
5 ms 162.159.8.55
3 2026-08-17 00:18 639225226652221583
9 ms 162.159.1.33
2 2026-08-17 00:18 639225226652221583
9 ms 162.159.8.55
1 2026-08-17 00:03 639225217156387684
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