DNS response history for dean.ns.cloudflare.com

dean.ns.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 169 DNS check records, 168 successful responses, 1 failed responses, and 127 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 dean.ns.cloudflare.com.
Records on Selected Date

169

Historical checks stored for this nameserver on selected date

Average Latency

127 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-20 23:58

All timestamps shown in UTC

Latest Resolved IP on Selected Date

108.162.193.153

Most recently resolved hosting IP on selected date

Successful Responses

168

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 dean.ns.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
169 2026-08-20 23:58 639228670775860800
17 ms 108.162.193.153
168 2026-08-20 23:58 639228670775860800
17 ms 172.64.33.153
167 2026-08-20 23:58 639228670775860800
17 ms 173.245.59.153
166 2026-08-20 23:06 639228639850033448
5 ms 108.162.193.153
165 2026-08-20 23:06 639228639850033448
5 ms 172.64.33.153
164 2026-08-20 23:06 639228639850033448
5 ms 173.245.59.153
163 2026-08-20 22:50 639228630204271870
5 ms 108.162.193.153
162 2026-08-20 22:50 639228630204271870
5 ms 172.64.33.153
161 2026-08-20 22:50 639228630204271870
5 ms 173.245.59.153
160 2026-08-20 22:34 639228620295091135
21 ms 108.162.193.153
159 2026-08-20 22:34 639228620295091135
21 ms 172.64.33.153
158 2026-08-20 22:34 639228620295091135
21 ms 173.245.59.153
157 2026-08-20 22:17 639228610298336915
27 ms 173.245.59.153
156 2026-08-20 22:17 639228610298336915
27 ms 108.162.193.153
155 2026-08-20 22:17 639228610298336915
27 ms 172.64.33.153
154 2026-08-20 21:25 639228578917047616
13 ms 108.162.193.153
153 2026-08-20 21:25 639228578917047616
13 ms 172.64.33.153
152 2026-08-20 21:25 639228578917047616
13 ms 173.245.59.153
151 2026-08-20 21:08 639228569046445709
6 ms 108.162.193.153
150 2026-08-20 21:08 639228569046445709
6 ms 172.64.33.153
149 2026-08-20 21:08 639228569046445709
6 ms 173.245.59.153
148 2026-08-20 20:51 639228558946830986
12 ms 108.162.193.153
147 2026-08-20 20:51 639228558946830986
12 ms 172.64.33.153
146 2026-08-20 20:51 639228558946830986
12 ms 173.245.59.153
145 2026-08-20 20:35 639228548977359217
2008 ms 108.162.193.153
144 2026-08-20 20:35 639228548977359217
2008 ms 172.64.33.153
143 2026-08-20 20:35 639228548977359217
2008 ms 173.245.59.153
142 2026-08-20 19:42 639228517494157668
2037 ms 108.162.193.153
141 2026-08-20 19:42 639228517494157668
2037 ms 172.64.33.153
140 2026-08-20 19:42 639228517494157668
2037 ms 173.245.59.153
139 2026-08-20 19:25 639228507374116892
44 ms 108.162.193.153
138 2026-08-20 19:25 639228507374116892
44 ms 172.64.33.153
137 2026-08-20 19:25 639228507374116892
44 ms 173.245.59.153
136 2026-08-20 19:09 639228497315154893
43 ms 108.162.193.153
135 2026-08-20 19:09 639228497315154893
43 ms 172.64.33.153
134 2026-08-20 19:09 639228497315154893
43 ms 173.245.59.153
133 2026-08-20 18:52 639228487287648341
45 ms 108.162.193.153
132 2026-08-20 18:52 639228487287648341
45 ms 173.245.59.153
131 2026-08-20 18:52 639228487287648341
45 ms 172.64.33.153
130 2026-08-20 18:00 639228455828123788
51 ms 172.64.33.153
129 2026-08-20 18:00 639228455828123788
51 ms 108.162.193.153
128 2026-08-20 18:00 639228455828123788
51 ms 173.245.59.153
127 2026-08-20 17:43 639228445900082244
7 ms 173.245.59.153
126 2026-08-20 17:43 639228445900082244
7 ms 108.162.193.153
125 2026-08-20 17:43 639228445900082244
7 ms 172.64.33.153
124 2026-08-20 17:26 639228435866352323
8 ms 108.162.193.153
123 2026-08-20 17:26 639228435866352323
8 ms 173.245.59.153
122 2026-08-20 17:26 639228435866352323
8 ms 172.64.33.153
121 2026-08-20 17:09 639228425802273151
6 ms 108.162.193.153
120 2026-08-20 17:09 639228425802273151
6 ms 172.64.33.153
119 2026-08-20 17:09 639228425802273151
6 ms 173.245.59.153
118 2026-08-20 16:16 639228393616324230
2041 ms 173.245.59.153
117 2026-08-20 16:16 639228393616324230
2041 ms 172.64.33.153
116 2026-08-20 16:16 639228393616324230
2041 ms 108.162.193.153
115 2026-08-20 15:59 639228383590408693
6 ms 108.162.193.153
114 2026-08-20 15:59 639228383590408693
6 ms 172.64.33.153
113 2026-08-20 15:59 639228383590408693
6 ms 173.245.59.153
112 2026-08-20 15:42 639228373471467474
20 ms 108.162.193.153
111 2026-08-20 15:42 639228373471467474
20 ms 172.64.33.153
110 2026-08-20 15:42 639228373471467474
20 ms 173.245.59.153
109 2026-08-20 15:25 639228363426647311
12 ms 108.162.193.153
108 2026-08-20 15:25 639228363426647311
12 ms 172.64.33.153
107 2026-08-20 15:25 639228363426647311
12 ms 173.245.59.153
106 2026-08-20 14:33 639228331681701910
14 ms 108.162.193.153
105 2026-08-20 14:33 639228331681701910
14 ms 172.64.33.153
104 2026-08-20 14:33 639228331681701910
14 ms 173.245.59.153
103 2026-08-20 14:16 639228321714746824
12 ms 108.162.193.153
102 2026-08-20 14:16 639228321714746824
12 ms 172.64.33.153
101 2026-08-20 14:16 639228321714746824
12 ms 173.245.59.153
100 2026-08-20 13:59 639228311652090262
8 ms 108.162.193.153
99 2026-08-20 13:59 639228311652090262
8 ms 173.245.59.153
98 2026-08-20 13:59 639228311652090262
8 ms 172.64.33.153
97 2026-08-20 13:43 639228301670088587
7 ms 108.162.193.153
96 2026-08-20 13:43 639228301670088587
7 ms 172.64.33.153
95 2026-08-20 13:43 639228301670088587
7 ms 173.245.59.153
94 2026-08-20 12:50 639228269987976710
10 ms 108.162.193.153
93 2026-08-20 12:50 639228269987976710
10 ms 172.64.33.153
92 2026-08-20 12:50 639228269987976710
10 ms 173.245.59.153
91 2026-08-20 12:33 639228260009452308
6 ms 108.162.193.153
90 2026-08-20 12:33 639228260009452308
6 ms 172.64.33.153
89 2026-08-20 12:33 639228260009452308
6 ms 173.245.59.153
88 2026-08-20 12:16 639228249661740894
69 ms 108.162.193.153
87 2026-08-20 12:16 639228249661740894
69 ms 172.64.33.153
86 2026-08-20 12:16 639228249661740894
69 ms 173.245.59.153
85 2026-08-20 11:59 639228239552680346
64 ms 108.162.193.153
84 2026-08-20 11:59 639228239552680346
64 ms 173.245.59.153
83 2026-08-20 11:59 639228239552680346
64 ms 172.64.33.153
82 2026-08-20 11:06 639228207667580819
13 ms 108.162.193.153
81 2026-08-20 11:06 639228207667580819
13 ms 172.64.33.153
80 2026-08-20 11:06 639228207667580819
13 ms 173.245.59.153
79 2026-08-20 10:49 639228197494011560
3 ms 108.162.193.153
78 2026-08-20 10:49 639228197494011560
3 ms 172.64.33.153
77 2026-08-20 10:49 639228197494011560
3 ms 173.245.59.153
76 2026-08-20 10:32 639228187497039939
37 ms 108.162.193.153
75 2026-08-20 10:32 639228187497039939
37 ms 172.64.33.153
74 2026-08-20 10:32 639228187497039939
37 ms 173.245.59.153
73 2026-08-20 10:15 639228177408432646
14 ms 108.162.193.153
72 2026-08-20 10:15 639228177408432646
14 ms 172.64.33.153
71 2026-08-20 10:15 639228177408432646
14 ms 173.245.59.153
70 2026-08-20 09:24 639228146356166262
29 ms 172.64.33.153
69 2026-08-20 09:24 639228146356166262
29 ms 173.245.59.153
68 2026-08-20 09:24 639228146356166262
29 ms 108.162.193.153
67 2026-08-20 09:07 639228136541505712
32 ms 173.245.59.153
66 2026-08-20 09:07 639228136541505712
32 ms 108.162.193.153
65 2026-08-20 09:07 639228136541505712
32 ms 172.64.33.153
64 2026-08-20 08:51 639228126519136598
4 ms 108.162.193.153
63 2026-08-20 08:51 639228126519136598
4 ms 172.64.33.153
62 2026-08-20 08:51 639228126519136598
4 ms 173.245.59.153
61 2026-08-20 08:34 639228116537148885
29 ms 173.245.59.153
60 2026-08-20 08:34 639228116537148885
29 ms 108.162.193.153
59 2026-08-20 08:34 639228116537148885
29 ms 172.64.33.153
58 2026-08-20 07:42 639228085320764351
4 ms 108.162.193.153
57 2026-08-20 07:42 639228085320764351
4 ms 172.64.33.153
56 2026-08-20 07:42 639228085320764351
4 ms 173.245.59.153
55 2026-08-20 07:25 639228075444604839
27 ms 108.162.193.153
54 2026-08-20 07:25 639228075444604839
27 ms 172.64.33.153
53 2026-08-20 07:25 639228075444604839
27 ms 173.245.59.153
52 2026-08-20 07:09 639228065615498985
7 ms 173.245.59.153
51 2026-08-20 07:09 639228065615498985
7 ms 108.162.193.153
50 2026-08-20 07:09 639228065615498985
7 ms 172.64.33.153
49 2026-08-20 06:53 639228055675321422
11 ms 172.64.33.153
48 2026-08-20 06:53 639228055675321422
11 ms 173.245.59.153
47 2026-08-20 06:53 639228055675321422
11 ms 108.162.193.153
46 2026-08-20 06:00 639228024230839396
7 ms 172.64.33.153
45 2026-08-20 06:00 639228024230839396
7 ms 173.245.59.153
44 2026-08-20 06:00 639228024230839396
7 ms 108.162.193.153
43 2026-08-20 05:44 639228014720406505
4 ms 108.162.193.153
42 2026-08-20 05:44 639228014720406505
4 ms 172.64.33.153
41 2026-08-20 05:44 639228014720406505
4 ms 173.245.59.153
40 2026-08-20 05:28 639228004930827030
42 ms 173.245.59.153
39 2026-08-20 05:28 639228004930827030
42 ms 108.162.193.153
38 2026-08-20 05:28 639228004930827030
42 ms 172.64.33.153
37 2026-08-20 05:12 639227995103340154
28 ms 108.162.193.153
36 2026-08-20 05:12 639227995103340154
28 ms 172.64.33.153
35 2026-08-20 05:12 639227995103340154
28 ms 173.245.59.153
34 2026-08-20 04:19 639227963811374894
5 ms 108.162.193.153
33 2026-08-20 04:19 639227963811374894
5 ms 172.64.33.153
32 2026-08-20 04:19 639227963811374894
5 ms 173.245.59.153
31 2026-08-20 04:03 639227954132571365
7 ms 173.245.59.153
30 2026-08-20 04:03 639227954132571365
7 ms 172.64.33.153
29 2026-08-20 04:03 639227954132571365
7 ms 108.162.193.153
28 2026-08-20 03:47 639227944541208342
6 ms 108.162.193.153
27 2026-08-20 03:47 639227944541208342
6 ms 172.64.33.153
26 2026-08-20 03:47 639227944541208342
6 ms 173.245.59.153
25 2026-08-20 03:31 639227934657213484
-
24 2026-08-20 02:39 639227903628145469
6 ms 108.162.193.153
23 2026-08-20 02:39 639227903628145469
6 ms 172.64.33.153
22 2026-08-20 02:39 639227903628145469
6 ms 173.245.59.153
21 2026-08-20 02:23 639227893995483475
46 ms 108.162.193.153
20 2026-08-20 02:23 639227893995483475
46 ms 173.245.59.153
19 2026-08-20 02:23 639227893995483475
46 ms 172.64.33.153
18 2026-08-20 02:07 639227884280244209
5 ms 108.162.193.153
17 2026-08-20 02:07 639227884280244209
5 ms 172.64.33.153
16 2026-08-20 02:07 639227884280244209
5 ms 173.245.59.153
15 2026-08-20 01:50 639227874371147132
51 ms 172.64.33.153
14 2026-08-20 01:50 639227874371147132
51 ms 173.245.59.153
13 2026-08-20 01:50 639227874371147132
51 ms 108.162.193.153
12 2026-08-20 00:59 639227843224256432
17 ms 108.162.193.153
11 2026-08-20 00:59 639227843224256432
17 ms 172.64.33.153
10 2026-08-20 00:59 639227843224256432
17 ms 173.245.59.153
9 2026-08-20 00:43 639227833720403506
12 ms 108.162.193.153
8 2026-08-20 00:43 639227833720403506
12 ms 172.64.33.153
7 2026-08-20 00:43 639227833720403506
12 ms 173.245.59.153
6 2026-08-20 00:27 639227824170728278
21 ms 108.162.193.153
5 2026-08-20 00:27 639227824170728278
21 ms 172.64.33.153
4 2026-08-20 00:27 639227824170728278
21 ms 173.245.59.153
3 2026-08-20 00:11 639227814865867570
33 ms 108.162.193.153
2 2026-08-20 00:11 639227814865867570
33 ms 172.64.33.153
1 2026-08-20 00:11 639227814865867570
33 ms 173.245.59.153