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 2026-08-15. For this date, NameServerHistory found 226 DNS check records, 225 successful responses, 1 failed responses, and 132 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

226

Historical checks stored for this nameserver on selected date

Average Latency

132 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-15 23:53

All timestamps shown in UTC

Latest Resolved IP on Selected Date

173.245.59.153

Most recently resolved hosting IP on selected date

Successful Responses

225

Checks that returned a measurable response

Failed Responses

1

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 dean.ns.cloudflare.com

Showing DNS history for 2026-08-15 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
226 2026-08-15 23:53 639224347685767174
32 ms 173.245.59.153
225 2026-08-15 23:53 639224347685767174
32 ms 172.64.33.153
224 2026-08-15 23:53 639224347685767174
32 ms 108.162.193.153
223 2026-08-15 23:37 639224338276675277
5 ms 108.162.193.153
222 2026-08-15 23:37 639224338276675277
5 ms 172.64.33.153
221 2026-08-15 23:37 639224338276675277
5 ms 173.245.59.153
220 2026-08-15 22:44 639224306594546649
14 ms 172.64.33.153
219 2026-08-15 22:44 639224306594546649
14 ms 108.162.193.153
218 2026-08-15 22:44 639224306594546649
14 ms 173.245.59.153
217 2026-08-15 22:28 639224297145423303
23 ms 108.162.193.153
216 2026-08-15 22:28 639224297145423303
23 ms 172.64.33.153
215 2026-08-15 22:28 639224297145423303
23 ms 173.245.59.153
214 2026-08-15 22:13 639224287678238833
31 ms 172.64.33.153
213 2026-08-15 22:13 639224287678238833
31 ms 173.245.59.153
212 2026-08-15 22:13 639224287678238833
31 ms 108.162.193.153
211 2026-08-15 21:57 639224278490872828
19 ms 108.162.193.153
210 2026-08-15 21:57 639224278490872828
19 ms 172.64.33.153
209 2026-08-15 21:57 639224278490872828
19 ms 173.245.59.153
208 2026-08-15 21:42 639224269149307826
7 ms 173.245.59.153
207 2026-08-15 21:42 639224269149307826
7 ms 172.64.33.153
206 2026-08-15 21:42 639224269149307826
7 ms 108.162.193.153
205 2026-08-15 21:26 639224259868597616
12 ms 173.245.59.153
204 2026-08-15 21:26 639224259868597616
12 ms 108.162.193.153
203 2026-08-15 21:26 639224259868597616
12 ms 172.64.33.153
202 2026-08-15 21:11 639224250518642175
47 ms 172.64.33.153
201 2026-08-15 21:11 639224250518642175
47 ms 173.245.59.153
200 2026-08-15 21:11 639224250518642175
47 ms 108.162.193.153
199 2026-08-15 20:55 639224241064772383
19 ms 108.162.193.153
198 2026-08-15 20:55 639224241064772383
19 ms 172.64.33.153
197 2026-08-15 20:55 639224241064772383
19 ms 173.245.59.153
196 2026-08-15 20:39 639224231691099605
55 ms 173.245.59.153
195 2026-08-15 20:39 639224231691099605
55 ms 108.162.193.153
194 2026-08-15 20:39 639224231691099605
55 ms 172.64.33.153
193 2026-08-15 20:24 639224222468168159
2046 ms 108.162.193.153
192 2026-08-15 20:24 639224222468168159
2046 ms 172.64.33.153
191 2026-08-15 20:24 639224222468168159
2046 ms 173.245.59.153
190 2026-08-15 20:08 639224213173899635
25 ms 173.245.59.153
189 2026-08-15 20:08 639224213173899635
25 ms 108.162.193.153
188 2026-08-15 20:08 639224213173899635
25 ms 172.64.33.153
187 2026-08-15 19:53 639224203914451783
42 ms 172.64.33.153
186 2026-08-15 19:53 639224203914451783
42 ms 173.245.59.153
185 2026-08-15 19:53 639224203914451783
42 ms 108.162.193.153
184 2026-08-15 19:00 639224172202542163
8 ms 108.162.193.153
183 2026-08-15 19:00 639224172202542163
8 ms 172.64.33.153
182 2026-08-15 19:00 639224172202542163
8 ms 173.245.59.153
181 2026-08-15 18:45 639224163338654093
15 ms 108.162.193.153
180 2026-08-15 18:45 639224163338654093
15 ms 173.245.59.153
179 2026-08-15 18:45 639224163338654093
15 ms 172.64.33.153
178 2026-08-15 18:30 639224154287995374
7 ms 108.162.193.153
177 2026-08-15 18:30 639224154287995374
7 ms 172.64.33.153
176 2026-08-15 18:30 639224154287995374
7 ms 173.245.59.153
175 2026-08-15 18:15 639224145118612503
4 ms 108.162.193.153
174 2026-08-15 18:15 639224145118612503
4 ms 172.64.33.153
173 2026-08-15 18:15 639224145118612503
4 ms 173.245.59.153
172 2026-08-15 18:00 639224135995990731
7 ms 172.64.33.153
171 2026-08-15 18:00 639224135995990731
7 ms 108.162.193.153
170 2026-08-15 18:00 639224135995990731
7 ms 173.245.59.153
169 2026-08-15 17:45 639224127185332624
21 ms 108.162.193.153
168 2026-08-15 17:45 639224127185332624
21 ms 172.64.33.153
167 2026-08-15 17:45 639224127185332624
21 ms 173.245.59.153
166 2026-08-15 17:30 639224118229289175
-
165 2026-08-15 17:15 639224109273796359
27 ms 108.162.193.153
164 2026-08-15 17:15 639224109273796359
27 ms 173.245.59.153
163 2026-08-15 17:15 639224109273796359
27 ms 172.64.33.153
162 2026-08-15 17:01 639224100490805608
6 ms 108.162.193.153
161 2026-08-15 17:01 639224100490805608
6 ms 172.64.33.153
160 2026-08-15 17:01 639224100490805608
6 ms 173.245.59.153
159 2026-08-15 16:45 639224091353714490
17 ms 172.64.33.153
158 2026-08-15 16:45 639224091353714490
17 ms 108.162.193.153
157 2026-08-15 16:45 639224091353714490
17 ms 173.245.59.153
156 2026-08-15 16:30 639224082033126828
4 ms 108.162.193.153
155 2026-08-15 16:30 639224082033126828
4 ms 172.64.33.153
154 2026-08-15 16:30 639224082033126828
4 ms 173.245.59.153
153 2026-08-15 16:14 639224072736962403
5 ms 108.162.193.153
152 2026-08-15 16:14 639224072736962403
5 ms 172.64.33.153
151 2026-08-15 16:14 639224072736962403
5 ms 173.245.59.153
150 2026-08-15 15:22 639224041475563754
4 ms 108.162.193.153
149 2026-08-15 15:22 639224041475563754
4 ms 172.64.33.153
148 2026-08-15 15:22 639224041475563754
4 ms 173.245.59.153
147 2026-08-15 15:07 639224032345604453
5 ms 108.162.193.153
146 2026-08-15 15:07 639224032345604453
5 ms 172.64.33.153
145 2026-08-15 15:07 639224032345604453
5 ms 173.245.59.153
144 2026-08-15 14:52 639224023169497283
6 ms 108.162.193.153
143 2026-08-15 14:52 639224023169497283
6 ms 172.64.33.153
142 2026-08-15 14:52 639224023169497283
6 ms 173.245.59.153
141 2026-08-15 14:37 639224013981146405
7 ms 108.162.193.153
140 2026-08-15 14:37 639224013981146405
7 ms 172.64.33.153
139 2026-08-15 14:37 639224013981146405
7 ms 173.245.59.153
138 2026-08-15 14:21 639224004883412586
98 ms 108.162.193.153
137 2026-08-15 14:21 639224004883412586
98 ms 172.64.33.153
136 2026-08-15 14:21 639224004883412586
98 ms 173.245.59.153
135 2026-08-15 14:06 639223995612880615
7 ms 173.245.59.153
134 2026-08-15 14:06 639223995612880615
7 ms 108.162.193.153
133 2026-08-15 14:06 639223995612880615
7 ms 172.64.33.153
132 2026-08-15 13:50 639223986271830789
4 ms 108.162.193.153
131 2026-08-15 13:50 639223986271830789
4 ms 172.64.33.153
130 2026-08-15 13:50 639223986271830789
4 ms 173.245.59.153
129 2026-08-15 13:35 639223977005780949
23 ms 173.245.59.153
128 2026-08-15 13:35 639223977005780949
23 ms 172.64.33.153
127 2026-08-15 13:35 639223977005780949
23 ms 108.162.193.153
126 2026-08-15 13:19 639223967653137793
10 ms 172.64.33.153
125 2026-08-15 13:19 639223967653137793
10 ms 108.162.193.153
124 2026-08-15 13:19 639223967653137793
10 ms 173.245.59.153
123 2026-08-15 13:04 639223958286010799
25 ms 172.64.33.153
122 2026-08-15 13:04 639223958286010799
25 ms 108.162.193.153
121 2026-08-15 13:04 639223958286010799
25 ms 173.245.59.153
120 2026-08-15 12:48 639223948936108345
20 ms 108.162.193.153
119 2026-08-15 12:48 639223948936108345
20 ms 173.245.59.153
118 2026-08-15 12:48 639223948936108345
20 ms 172.64.33.153
117 2026-08-15 12:33 639223939673066880
7 ms 108.162.193.153
116 2026-08-15 12:33 639223939673066880
7 ms 172.64.33.153
115 2026-08-15 12:33 639223939673066880
7 ms 173.245.59.153
114 2026-08-15 11:41 639223908317760530
7 ms 108.162.193.153
113 2026-08-15 11:41 639223908317760530
7 ms 173.245.59.153
112 2026-08-15 11:41 639223908317760530
7 ms 172.64.33.153
111 2026-08-15 11:25 639223898992594258
44 ms 108.162.193.153
110 2026-08-15 11:25 639223898992594258
44 ms 172.64.33.153
109 2026-08-15 11:25 639223898992594258
44 ms 173.245.59.153
108 2026-08-15 11:10 639223889761312823
17 ms 108.162.193.153
107 2026-08-15 11:10 639223889761312823
17 ms 172.64.33.153
106 2026-08-15 11:10 639223889761312823
17 ms 173.245.59.153
105 2026-08-15 10:54 639223880359273507
2040 ms 173.245.59.153
104 2026-08-15 10:54 639223880359273507
2040 ms 172.64.33.153
103 2026-08-15 10:54 639223880359273507
2040 ms 108.162.193.153
102 2026-08-15 10:38 639223870920466808
21 ms 173.245.59.153
101 2026-08-15 10:38 639223870920466808
21 ms 172.64.33.153
100 2026-08-15 10:38 639223870920466808
21 ms 108.162.193.153
99 2026-08-15 10:23 639223861579762179
5 ms 108.162.193.153
98 2026-08-15 10:23 639223861579762179
5 ms 172.64.33.153
97 2026-08-15 10:23 639223861579762179
5 ms 173.245.59.153
96 2026-08-15 10:07 639223852238616009
24 ms 108.162.193.153
95 2026-08-15 10:07 639223852238616009
24 ms 172.64.33.153
94 2026-08-15 10:07 639223852238616009
24 ms 173.245.59.153
93 2026-08-15 09:52 639223843019815620
4 ms 108.162.193.153
92 2026-08-15 09:52 639223843019815620
4 ms 172.64.33.153
91 2026-08-15 09:52 639223843019815620
4 ms 173.245.59.153
90 2026-08-15 09:36 639223833669915012
15 ms 172.64.33.153
89 2026-08-15 09:36 639223833669915012
15 ms 108.162.193.153
88 2026-08-15 09:36 639223833669915012
15 ms 173.245.59.153
87 2026-08-15 09:21 639223824494613222
9 ms 108.162.193.153
86 2026-08-15 09:21 639223824494613222
9 ms 172.64.33.153
85 2026-08-15 09:21 639223824494613222
9 ms 173.245.59.153
84 2026-08-15 09:05 639223815116325293
3 ms 108.162.193.153
83 2026-08-15 09:05 639223815116325293
3 ms 172.64.33.153
82 2026-08-15 09:05 639223815116325293
3 ms 173.245.59.153
81 2026-08-15 08:49 639223805493870221
37 ms 108.162.193.153
80 2026-08-15 08:49 639223805493870221
37 ms 172.64.33.153
79 2026-08-15 08:49 639223805493870221
37 ms 173.245.59.153
78 2026-08-15 07:57 639223774218660438
16 ms 108.162.193.153
77 2026-08-15 07:57 639223774218660438
16 ms 172.64.33.153
76 2026-08-15 07:57 639223774218660438
16 ms 173.245.59.153
75 2026-08-15 07:41 639223764663090372
161 ms 108.162.193.153
74 2026-08-15 07:41 639223764663090372
161 ms 172.64.33.153
73 2026-08-15 07:41 639223764663090372
161 ms 173.245.59.153
72 2026-08-15 07:26 639223755338811400
11 ms 108.162.193.153
71 2026-08-15 07:26 639223755338811400
11 ms 172.64.33.153
70 2026-08-15 07:26 639223755338811400
11 ms 173.245.59.153
69 2026-08-15 07:10 639223746019193268
30 ms 108.162.193.153
68 2026-08-15 07:10 639223746019193268
30 ms 173.245.59.153
67 2026-08-15 07:10 639223746019193268
30 ms 172.64.33.153
66 2026-08-15 06:55 639223736658778104
39 ms 108.162.193.153
65 2026-08-15 06:55 639223736658778104
39 ms 172.64.33.153
64 2026-08-15 06:55 639223736658778104
39 ms 173.245.59.153
63 2026-08-15 06:39 639223727330194499
26 ms 108.162.193.153
62 2026-08-15 06:39 639223727330194499
26 ms 172.64.33.153
61 2026-08-15 06:39 639223727330194499
26 ms 173.245.59.153
60 2026-08-15 06:23 639223717848514742
7 ms 108.162.193.153
59 2026-08-15 06:23 639223717848514742
7 ms 172.64.33.153
58 2026-08-15 06:23 639223717848514742
7 ms 173.245.59.153
57 2026-08-15 06:07 639223708284754056
120 ms 108.162.193.153
56 2026-08-15 06:07 639223708284754056
120 ms 172.64.33.153
55 2026-08-15 06:07 639223708284754056
120 ms 173.245.59.153
54 2026-08-15 05:52 639223699061259933
110 ms 108.162.193.153
53 2026-08-15 05:52 639223699061259933
110 ms 172.64.33.153
52 2026-08-15 05:52 639223699061259933
110 ms 173.245.59.153
51 2026-08-15 05:36 639223689592545140
85 ms 108.162.193.153
50 2026-08-15 05:36 639223689592545140
85 ms 172.64.33.153
49 2026-08-15 05:36 639223689592545140
85 ms 173.245.59.153
48 2026-08-15 05:20 639223680143410810
31 ms 108.162.193.153
47 2026-08-15 05:20 639223680143410810
31 ms 172.64.33.153
46 2026-08-15 05:20 639223680143410810
31 ms 173.245.59.153
45 2026-08-15 05:05 639223670514517104
93 ms 108.162.193.153
44 2026-08-15 05:05 639223670514517104
93 ms 172.64.33.153
43 2026-08-15 05:05 639223670514517104
93 ms 173.245.59.153
42 2026-08-15 04:12 639223638855054294
7 ms 173.245.59.153
41 2026-08-15 04:12 639223638855054294
7 ms 172.64.33.153
40 2026-08-15 04:12 639223638855054294
7 ms 108.162.193.153
39 2026-08-15 03:56 639223629623335972
4 ms 108.162.193.153
38 2026-08-15 03:56 639223629623335972
4 ms 172.64.33.153
37 2026-08-15 03:56 639223629623335972
4 ms 173.245.59.153
36 2026-08-15 03:41 639223620390189495
18 ms 108.162.193.153
35 2026-08-15 03:41 639223620390189495
18 ms 172.64.33.153
34 2026-08-15 03:41 639223620390189495
18 ms 173.245.59.153
33 2026-08-15 03:25 639223610916950440
31 ms 108.162.193.153
32 2026-08-15 03:25 639223610916950440
31 ms 172.64.33.153
31 2026-08-15 03:25 639223610916950440
31 ms 173.245.59.153
30 2026-08-15 03:09 639223601597759168
18 ms 108.162.193.153
29 2026-08-15 03:09 639223601597759168
18 ms 172.64.33.153
28 2026-08-15 03:09 639223601597759168
18 ms 173.245.59.153
27 2026-08-15 02:54 639223592342172093
33 ms 108.162.193.153
26 2026-08-15 02:54 639223592342172093
33 ms 172.64.33.153
25 2026-08-15 02:54 639223592342172093
33 ms 173.245.59.153
24 2026-08-15 02:39 639223583324121497
2011 ms 173.245.59.153
23 2026-08-15 02:39 639223583324121497
2011 ms 108.162.193.153
22 2026-08-15 02:39 639223583324121497
2011 ms 172.64.33.153
21 2026-08-15 02:24 639223574086714218
33 ms 108.162.193.153
20 2026-08-15 02:24 639223574086714218
33 ms 172.64.33.153
19 2026-08-15 02:24 639223574086714218
33 ms 173.245.59.153
18 2026-08-15 02:08 639223564698424889
4 ms 108.162.193.153
17 2026-08-15 02:08 639223564698424889
4 ms 172.64.33.153
16 2026-08-15 02:08 639223564698424889
4 ms 173.245.59.153
15 2026-08-15 01:52 639223555408664206
18 ms 108.162.193.153
14 2026-08-15 01:52 639223555408664206
18 ms 172.64.33.153
13 2026-08-15 01:52 639223555408664206
18 ms 173.245.59.153
12 2026-08-15 01:37 639223546000912416
2013 ms 108.162.193.153
11 2026-08-15 01:37 639223546000912416
2013 ms 173.245.59.153
10 2026-08-15 01:37 639223546000912416
2013 ms 172.64.33.153
9 2026-08-15 01:21 639223536550774847
9 ms 108.162.193.153
8 2026-08-15 01:21 639223536550774847
9 ms 173.245.59.153
7 2026-08-15 01:21 639223536550774847
9 ms 172.64.33.153
6 2026-08-15 00:28 639223505017205611
6 ms 108.162.193.153
5 2026-08-15 00:28 639223505017205611
6 ms 172.64.33.153
4 2026-08-15 00:28 639223505017205611
6 ms 173.245.59.153
3 2026-08-15 00:13 639223495784410207
5 ms 108.162.193.153
2 2026-08-15 00:13 639223495784410207
5 ms 172.64.33.153
1 2026-08-15 00:13 639223495784410207
5 ms 173.245.59.153