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 2026-08-20. For this date, NameServerHistory found 114 DNS check records, 114 successful responses, 0 failed responses, and 266 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

114

Historical checks stored for this nameserver on selected date

Average Latency

266 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-20 23:59

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

114

Checks that returned a measurable response

Failed Responses

0

Checks with no response or no returned latency

Failure Rate

0%

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 2026-08-20 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
114 2026-08-20 23:59 639228670775860800
4 ms 162.159.1.33
113 2026-08-20 23:59 639228670775860800
4 ms 162.159.8.55
112 2026-08-20 23:07 639228639850033448
2044 ms 162.159.1.33
111 2026-08-20 23:07 639228639850033448
2044 ms 162.159.8.55
110 2026-08-20 22:51 639228630204271870
4 ms 162.159.1.33
109 2026-08-20 22:51 639228630204271870
4 ms 162.159.8.55
108 2026-08-20 22:35 639228620295091135
2017 ms 162.159.8.55
107 2026-08-20 22:35 639228620295091135
2017 ms 162.159.1.33
106 2026-08-20 22:18 639228610298336915
18 ms 162.159.1.33
105 2026-08-20 22:18 639228610298336915
18 ms 162.159.8.55
104 2026-08-20 21:26 639228578917047616
13 ms 162.159.8.55
103 2026-08-20 21:26 639228578917047616
13 ms 162.159.1.33
102 2026-08-20 21:09 639228569046445709
5 ms 162.159.1.33
101 2026-08-20 21:09 639228569046445709
5 ms 162.159.8.55
100 2026-08-20 20:52 639228558946830986
2018 ms 162.159.1.33
99 2026-08-20 20:52 639228558946830986
2018 ms 162.159.8.55
98 2026-08-20 20:36 639228548977359217
8 ms 162.159.1.33
97 2026-08-20 20:36 639228548977359217
8 ms 162.159.8.55
96 2026-08-20 19:43 639228517494157668
20 ms 162.159.1.33
95 2026-08-20 19:43 639228517494157668
20 ms 162.159.8.55
94 2026-08-20 19:26 639228507374116892
43 ms 162.159.8.55
93 2026-08-20 19:26 639228507374116892
43 ms 162.159.1.33
92 2026-08-20 19:10 639228497315154893
16 ms 162.159.1.33
91 2026-08-20 19:10 639228497315154893
16 ms 162.159.8.55
90 2026-08-20 18:53 639228487287648341
31 ms 162.159.1.33
89 2026-08-20 18:53 639228487287648341
31 ms 162.159.8.55
88 2026-08-20 18:00 639228455828123788
35 ms 162.159.1.33
87 2026-08-20 18:00 639228455828123788
35 ms 162.159.8.55
86 2026-08-20 17:44 639228445900082244
32 ms 162.159.8.55
85 2026-08-20 17:44 639228445900082244
32 ms 162.159.1.33
84 2026-08-20 17:27 639228435866352323
39 ms 162.159.8.55
83 2026-08-20 17:27 639228435866352323
39 ms 162.159.1.33
82 2026-08-20 17:10 639228425802273151
22 ms 162.159.1.33
81 2026-08-20 17:10 639228425802273151
22 ms 162.159.8.55
80 2026-08-20 16:17 639228393616324230
28 ms 162.159.1.33
79 2026-08-20 16:17 639228393616324230
28 ms 162.159.8.55
78 2026-08-20 16:00 639228383590408693
4019 ms 162.159.1.33
77 2026-08-20 16:00 639228383590408693
4019 ms 162.159.8.55
76 2026-08-20 15:43 639228373471467474
5 ms 162.159.1.33
75 2026-08-20 15:43 639228373471467474
5 ms 162.159.8.55
74 2026-08-20 15:26 639228363426647311
45 ms 162.159.1.33
73 2026-08-20 15:26 639228363426647311
45 ms 162.159.8.55
72 2026-08-20 14:34 639228331681701910
12 ms 162.159.1.33
71 2026-08-20 14:34 639228331681701910
12 ms 162.159.8.55
70 2026-08-20 14:17 639228321714746824
33 ms 162.159.8.55
69 2026-08-20 14:17 639228321714746824
33 ms 162.159.1.33
68 2026-08-20 14:00 639228311652090262
10 ms 162.159.1.33
67 2026-08-20 14:00 639228311652090262
10 ms 162.159.8.55
66 2026-08-20 13:43 639228301670088587
26 ms 162.159.1.33
65 2026-08-20 13:43 639228301670088587
26 ms 162.159.8.55
64 2026-08-20 12:51 639228269987976710
28 ms 162.159.1.33
63 2026-08-20 12:51 639228269987976710
28 ms 162.159.8.55
62 2026-08-20 12:34 639228260009452308
26 ms 162.159.1.33
61 2026-08-20 12:34 639228260009452308
26 ms 162.159.8.55
60 2026-08-20 12:17 639228249661740894
17 ms 162.159.1.33
59 2026-08-20 12:17 639228249661740894
17 ms 162.159.8.55
58 2026-08-20 12:00 639228239552680346
22 ms 162.159.1.33
57 2026-08-20 12:00 639228239552680346
22 ms 162.159.8.55
56 2026-08-20 11:07 639228207667580819
16 ms 162.159.1.33
55 2026-08-20 11:07 639228207667580819
16 ms 162.159.8.55
54 2026-08-20 10:50 639228197494011560
9 ms 162.159.1.33
53 2026-08-20 10:50 639228197494011560
9 ms 162.159.8.55
52 2026-08-20 10:33 639228187497039939
10 ms 162.159.1.33
51 2026-08-20 10:33 639228187497039939
10 ms 162.159.8.55
50 2026-08-20 10:16 639228177408432646
25 ms 162.159.1.33
49 2026-08-20 10:16 639228177408432646
25 ms 162.159.8.55
48 2026-08-20 09:25 639228146356166262
17 ms 162.159.1.33
47 2026-08-20 09:25 639228146356166262
17 ms 162.159.8.55
46 2026-08-20 09:08 639228136541505712
30 ms 162.159.1.33
45 2026-08-20 09:08 639228136541505712
30 ms 162.159.8.55
44 2026-08-20 08:52 639228126519136598
4 ms 162.159.1.33
43 2026-08-20 08:52 639228126519136598
4 ms 162.159.8.55
42 2026-08-20 08:35 639228116537148885
4 ms 162.159.1.33
41 2026-08-20 08:35 639228116537148885
4 ms 162.159.8.55
40 2026-08-20 07:43 639228085320764351
4 ms 162.159.1.33
39 2026-08-20 07:43 639228085320764351
4 ms 162.159.8.55
38 2026-08-20 07:27 639228075444604839
4 ms 162.159.1.33
37 2026-08-20 07:27 639228075444604839
4 ms 162.159.8.55
36 2026-08-20 07:10 639228065615498985
37 ms 162.159.1.33
35 2026-08-20 07:10 639228065615498985
37 ms 162.159.8.55
34 2026-08-20 06:54 639228055675321422
4 ms 162.159.1.33
33 2026-08-20 06:54 639228055675321422
4 ms 162.159.8.55
32 2026-08-20 06:01 639228024230839396
63 ms 162.159.1.33
31 2026-08-20 06:01 639228024230839396
63 ms 162.159.8.55
30 2026-08-20 05:45 639228014720406505
3 ms 162.159.1.33
29 2026-08-20 05:45 639228014720406505
3 ms 162.159.8.55
28 2026-08-20 05:29 639228004930827030
2021 ms 162.159.1.33
27 2026-08-20 05:29 639228004930827030
2021 ms 162.159.8.55
26 2026-08-20 05:13 639227995103340154
65 ms 162.159.1.33
25 2026-08-20 05:13 639227995103340154
65 ms 162.159.8.55
24 2026-08-20 04:20 639227963811374894
36 ms 162.159.1.33
23 2026-08-20 04:20 639227963811374894
36 ms 162.159.8.55
22 2026-08-20 04:04 639227954132571365
7 ms 162.159.1.33
21 2026-08-20 04:04 639227954132571365
7 ms 162.159.8.55
20 2026-08-20 03:48 639227944541208342
2013 ms 162.159.1.33
19 2026-08-20 03:48 639227944541208342
2013 ms 162.159.8.55
18 2026-08-20 03:32 639227934657213484
9 ms 162.159.1.33
17 2026-08-20 03:32 639227934657213484
9 ms 162.159.8.55
16 2026-08-20 02:40 639227903628145469
10 ms 162.159.1.33
15 2026-08-20 02:40 639227903628145469
10 ms 162.159.8.55
14 2026-08-20 02:24 639227893995483475
46 ms 162.159.8.55
13 2026-08-20 02:24 639227893995483475
46 ms 162.159.1.33
12 2026-08-20 02:08 639227884280244209
18 ms 162.159.1.33
11 2026-08-20 02:08 639227884280244209
18 ms 162.159.8.55
10 2026-08-20 01:51 639227874371147132
3 ms 162.159.1.33
9 2026-08-20 01:51 639227874371147132
3 ms 162.159.8.55
8 2026-08-20 00:59 639227843224256432
4 ms 162.159.1.33
7 2026-08-20 00:59 639227843224256432
4 ms 162.159.8.55
6 2026-08-20 00:44 639227833720403506
5 ms 162.159.1.33
5 2026-08-20 00:44 639227833720403506
5 ms 162.159.8.55
4 2026-08-20 00:28 639227824170728278
22 ms 162.159.1.33
3 2026-08-20 00:28 639227824170728278
22 ms 162.159.8.55
2 2026-08-20 00:12 639227814865867570
30 ms 162.159.8.55
1 2026-08-20 00:12 639227814865867570
30 ms 162.159.1.33