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 2026-08-19. For this date, NameServerHistory found 221 DNS check records, 219 successful responses, 2 failed responses, and 214 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

221

Historical checks stored for this nameserver on selected date

Average Latency

214 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-19 23:56

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

219

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 dean.ns.cloudflare.com

Showing DNS history for 2026-08-19 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
221 2026-08-19 23:56 639227805445376839
4 ms 108.162.193.153
220 2026-08-19 23:56 639227805445376839
4 ms 172.64.33.153
219 2026-08-19 23:56 639227805445376839
4 ms 173.245.59.153
218 2026-08-19 23:40 639227795899225951
14 ms 108.162.193.153
217 2026-08-19 23:40 639227795899225951
14 ms 172.64.33.153
216 2026-08-19 23:40 639227795899225951
14 ms 173.245.59.153
215 2026-08-19 23:24 639227786351762008
9 ms 108.162.193.153
214 2026-08-19 23:24 639227786351762008
9 ms 172.64.33.153
213 2026-08-19 23:24 639227786351762008
9 ms 173.245.59.153
212 2026-08-19 23:07 639227776640591733
40 ms 173.245.59.153
211 2026-08-19 23:07 639227776640591733
40 ms 108.162.193.153
210 2026-08-19 23:07 639227776640591733
40 ms 172.64.33.153
209 2026-08-19 22:52 639227767128841282
4 ms 108.162.193.153
208 2026-08-19 22:52 639227767128841282
4 ms 172.64.33.153
207 2026-08-19 22:52 639227767128841282
4 ms 173.245.59.153
206 2026-08-19 22:36 639227757477304711
24 ms 108.162.193.153
205 2026-08-19 22:36 639227757477304711
24 ms 172.64.33.153
204 2026-08-19 22:36 639227757477304711
24 ms 173.245.59.153
203 2026-08-19 22:19 639227747572098014
3 ms 108.162.193.153
202 2026-08-19 22:19 639227747572098014
3 ms 172.64.33.153
201 2026-08-19 22:19 639227747572098014
3 ms 173.245.59.153
200 2026-08-19 22:02 639227737588613113
4 ms 108.162.193.153
199 2026-08-19 22:02 639227737588613113
4 ms 172.64.33.153
198 2026-08-19 22:02 639227737588613113
4 ms 173.245.59.153
197 2026-08-19 21:10 639227706134603955
5 ms 108.162.193.153
196 2026-08-19 21:10 639227706134603955
5 ms 172.64.33.153
195 2026-08-19 21:10 639227706134603955
5 ms 173.245.59.153
194 2026-08-19 20:54 639227696589027396
18 ms 173.245.59.153
193 2026-08-19 20:54 639227696589027396
18 ms 108.162.193.153
192 2026-08-19 20:54 639227696589027396
18 ms 172.64.33.153
191 2026-08-19 20:38 639227687097707639
2058 ms 173.245.59.153
190 2026-08-19 20:38 639227687097707639
2058 ms 108.162.193.153
189 2026-08-19 20:38 639227687097707639
2058 ms 172.64.33.153
188 2026-08-19 20:22 639227677474464487
19 ms 108.162.193.153
187 2026-08-19 20:22 639227677474464487
19 ms 172.64.33.153
186 2026-08-19 20:22 639227677474464487
19 ms 173.245.59.153
185 2026-08-19 20:06 639227667767441118
4 ms 108.162.193.153
184 2026-08-19 20:06 639227667767441118
4 ms 172.64.33.153
183 2026-08-19 20:06 639227667767441118
4 ms 173.245.59.153
182 2026-08-19 19:50 639227657984833832
79 ms 172.64.33.153
181 2026-08-19 19:50 639227657984833832
79 ms 108.162.193.153
180 2026-08-19 19:50 639227657984833832
79 ms 173.245.59.153
179 2026-08-19 19:33 639227648079992640
25 ms 108.162.193.153
178 2026-08-19 19:33 639227648079992640
25 ms 172.64.33.153
177 2026-08-19 19:33 639227648079992640
25 ms 173.245.59.153
176 2026-08-19 19:17 639227638125048441
189 ms 173.245.59.153
175 2026-08-19 19:17 639227638125048441
189 ms 172.64.33.153
174 2026-08-19 19:17 639227638125048441
189 ms 108.162.193.153
173 2026-08-19 19:00 639227628211392142
26 ms 108.162.193.153
172 2026-08-19 19:00 639227628211392142
26 ms 172.64.33.153
171 2026-08-19 19:00 639227628211392142
26 ms 173.245.59.153
170 2026-08-19 18:44 639227618261696275
10 ms 108.162.193.153
169 2026-08-19 18:44 639227618261696275
10 ms 173.245.59.153
168 2026-08-19 18:44 639227618261696275
10 ms 172.64.33.153
167 2026-08-19 18:27 639227608366233645
4 ms 108.162.193.153
166 2026-08-19 18:27 639227608366233645
4 ms 172.64.33.153
165 2026-08-19 18:27 639227608366233645
4 ms 173.245.59.153
164 2026-08-19 18:10 639227598301787588
28 ms 108.162.193.153
163 2026-08-19 18:10 639227598301787588
28 ms 172.64.33.153
162 2026-08-19 18:10 639227598301787588
28 ms 173.245.59.153
161 2026-08-19 17:17 639227566241010716
47 ms 108.162.193.153
160 2026-08-19 17:17 639227566241010716
47 ms 172.64.33.153
159 2026-08-19 17:17 639227566241010716
47 ms 173.245.59.153
158 2026-08-19 17:01 639227556454538959
3 ms 108.162.193.153
157 2026-08-19 17:01 639227556454538959
3 ms 172.64.33.153
156 2026-08-19 17:01 639227556454538959
3 ms 173.245.59.153
155 2026-08-19 16:44 639227546640305542
29 ms 108.162.193.153
154 2026-08-19 16:44 639227546640305542
29 ms 173.245.59.153
153 2026-08-19 16:44 639227546640305542
29 ms 172.64.33.153
152 2026-08-19 16:28 639227536965466472
23 ms 173.245.59.153
151 2026-08-19 16:28 639227536965466472
23 ms 172.64.33.153
150 2026-08-19 16:28 639227536965466472
23 ms 108.162.193.153
149 2026-08-19 16:12 639227527048658280
45 ms 172.64.33.153
148 2026-08-19 16:12 639227527048658280
45 ms 173.245.59.153
147 2026-08-19 16:12 639227527048658280
45 ms 108.162.193.153
146 2026-08-19 15:55 639227517386634438
2021 ms 108.162.193.153
145 2026-08-19 15:55 639227517386634438
2021 ms 172.64.33.153
144 2026-08-19 15:55 639227517386634438
2021 ms 173.245.59.153
143 2026-08-19 15:39 639227507459551637
11 ms 108.162.193.153
142 2026-08-19 15:39 639227507459551637
11 ms 172.64.33.153
141 2026-08-19 15:39 639227507459551637
11 ms 173.245.59.153
140 2026-08-19 15:22 639227497515595277
-
139 2026-08-19 15:06 639227487441798036
20 ms 108.162.193.153
138 2026-08-19 15:06 639227487441798036
20 ms 172.64.33.153
137 2026-08-19 15:06 639227487441798036
20 ms 173.245.59.153
136 2026-08-19 14:49 639227477445551863
28 ms 108.162.193.153
135 2026-08-19 14:49 639227477445551863
28 ms 172.64.33.153
134 2026-08-19 14:49 639227477445551863
28 ms 173.245.59.153
133 2026-08-19 14:32 639227467297067891
63 ms 172.64.33.153
132 2026-08-19 14:32 639227467297067891
63 ms 108.162.193.153
131 2026-08-19 14:32 639227467297067891
63 ms 173.245.59.153
130 2026-08-19 14:15 639227457057795635
30 ms 108.162.193.153
129 2026-08-19 14:15 639227457057795635
30 ms 172.64.33.153
128 2026-08-19 14:15 639227457057795635
30 ms 173.245.59.153
127 2026-08-19 13:22 639227425244777397
90 ms 172.64.33.153
126 2026-08-19 13:22 639227425244777397
90 ms 108.162.193.153
125 2026-08-19 13:22 639227425244777397
90 ms 173.245.59.153
124 2026-08-19 13:05 639227415422116485
4 ms 108.162.193.153
123 2026-08-19 13:05 639227415422116485
4 ms 172.64.33.153
122 2026-08-19 13:05 639227415422116485
4 ms 173.245.59.153
121 2026-08-19 12:49 639227405307256053
8 ms 172.64.33.153
120 2026-08-19 12:49 639227405307256053
8 ms 108.162.193.153
119 2026-08-19 12:49 639227405307256053
8 ms 173.245.59.153
118 2026-08-19 12:32 639227395396602630
15 ms 108.162.193.153
117 2026-08-19 12:32 639227395396602630
15 ms 172.64.33.153
116 2026-08-19 12:32 639227395396602630
15 ms 173.245.59.153
115 2026-08-19 12:16 639227385510363611
36 ms 172.64.33.153
114 2026-08-19 12:16 639227385510363611
36 ms 173.245.59.153
113 2026-08-19 12:16 639227385510363611
36 ms 108.162.193.153
112 2026-08-19 11:59 639227375508324850
5 ms 108.162.193.153
111 2026-08-19 11:59 639227375508324850
5 ms 172.64.33.153
110 2026-08-19 11:59 639227375508324850
5 ms 173.245.59.153
109 2026-08-19 11:42 639227365326611906
9 ms 108.162.193.153
108 2026-08-19 11:42 639227365326611906
9 ms 172.64.33.153
107 2026-08-19 11:42 639227365326611906
9 ms 173.245.59.153
106 2026-08-19 11:25 639227355360014208
2018 ms 172.64.33.153
105 2026-08-19 11:25 639227355360014208
2018 ms 173.245.59.153
104 2026-08-19 11:25 639227355360014208
2018 ms 108.162.193.153
103 2026-08-19 11:08 639227345036782165
14 ms 172.64.33.153
102 2026-08-19 11:08 639227345036782165
14 ms 108.162.193.153
101 2026-08-19 11:08 639227345036782165
14 ms 173.245.59.153
100 2026-08-19 10:51 639227334992964533
13 ms 173.245.59.153
99 2026-08-19 10:51 639227334992964533
13 ms 108.162.193.153
98 2026-08-19 10:51 639227334992964533
13 ms 172.64.33.153
97 2026-08-19 10:35 639227324986605572
13 ms 108.162.193.153
96 2026-08-19 10:35 639227324986605572
13 ms 172.64.33.153
95 2026-08-19 10:35 639227324986605572
13 ms 173.245.59.153
94 2026-08-19 10:18 639227314928414539
75 ms 172.64.33.153
93 2026-08-19 10:18 639227314928414539
75 ms 108.162.193.153
92 2026-08-19 10:18 639227314928414539
75 ms 173.245.59.153
91 2026-08-19 09:25 639227283029182134
30 ms 108.162.193.153
90 2026-08-19 09:25 639227283029182134
30 ms 172.64.33.153
89 2026-08-19 09:25 639227283029182134
30 ms 173.245.59.153
88 2026-08-19 09:09 639227273294779350
6 ms 108.162.193.153
87 2026-08-19 09:09 639227273294779350
6 ms 172.64.33.153
86 2026-08-19 09:09 639227273294779350
6 ms 173.245.59.153
85 2026-08-19 08:52 639227263525231313
6 ms 108.162.193.153
84 2026-08-19 08:52 639227263525231313
6 ms 172.64.33.153
83 2026-08-19 08:52 639227263525231313
6 ms 173.245.59.153
82 2026-08-19 08:36 639227253578313363
8 ms 108.162.193.153
81 2026-08-19 08:36 639227253578313363
8 ms 172.64.33.153
80 2026-08-19 08:36 639227253578313363
8 ms 173.245.59.153
79 2026-08-19 08:19 639227243649973322
2013 ms 173.245.59.153
78 2026-08-19 08:19 639227243649973322
2013 ms 108.162.193.153
77 2026-08-19 08:19 639227243649973322
2013 ms 172.64.33.153
76 2026-08-19 08:02 639227233581059317
27 ms 108.162.193.153
75 2026-08-19 08:02 639227233581059317
27 ms 172.64.33.153
74 2026-08-19 08:02 639227233581059317
27 ms 173.245.59.153
73 2026-08-19 07:46 639227223667352067
13 ms 172.64.33.153
72 2026-08-19 07:46 639227223667352067
13 ms 108.162.193.153
71 2026-08-19 07:46 639227223667352067
13 ms 173.245.59.153
70 2026-08-19 07:29 639227213714837066
2026 ms 108.162.193.153
69 2026-08-19 07:29 639227213714837066
2026 ms 172.64.33.153
68 2026-08-19 07:29 639227213714837066
2026 ms 173.245.59.153
67 2026-08-19 07:13 639227203701208496
7 ms 108.162.193.153
66 2026-08-19 07:13 639227203701208496
7 ms 172.64.33.153
65 2026-08-19 07:13 639227203701208496
7 ms 173.245.59.153
64 2026-08-19 06:56 639227193643202179
-
63 2026-08-19 06:39 639227183584431597
15 ms 108.162.193.153
62 2026-08-19 06:39 639227183584431597
15 ms 172.64.33.153
61 2026-08-19 06:39 639227183584431597
15 ms 173.245.59.153
60 2026-08-19 06:22 639227173347403088
16 ms 108.162.193.153
59 2026-08-19 06:22 639227173347403088
16 ms 172.64.33.153
58 2026-08-19 06:22 639227173347403088
16 ms 173.245.59.153
57 2026-08-19 05:29 639227141523007601
5 ms 108.162.193.153
56 2026-08-19 05:29 639227141523007601
5 ms 172.64.33.153
55 2026-08-19 05:29 639227141523007601
5 ms 173.245.59.153
54 2026-08-19 05:13 639227131785931574
4 ms 108.162.193.153
53 2026-08-19 05:13 639227131785931574
4 ms 172.64.33.153
52 2026-08-19 05:13 639227131785931574
4 ms 173.245.59.153
51 2026-08-19 04:57 639227122176475389
37 ms 108.162.193.153
50 2026-08-19 04:57 639227122176475389
37 ms 172.64.33.153
49 2026-08-19 04:57 639227122176475389
37 ms 173.245.59.153
48 2026-08-19 04:41 639227112668934596
13 ms 108.162.193.153
47 2026-08-19 04:41 639227112668934596
13 ms 172.64.33.153
46 2026-08-19 04:41 639227112668934596
13 ms 173.245.59.153
45 2026-08-19 04:24 639227102773292788
4 ms 108.162.193.153
44 2026-08-19 04:24 639227102773292788
4 ms 172.64.33.153
43 2026-08-19 04:24 639227102773292788
4 ms 173.245.59.153
42 2026-08-19 04:08 639227093141136930
8 ms 108.162.193.153
41 2026-08-19 04:08 639227093141136930
8 ms 172.64.33.153
40 2026-08-19 04:08 639227093141136930
8 ms 173.245.59.153
39 2026-08-19 03:52 639227083449420147
16 ms 108.162.193.153
38 2026-08-19 03:52 639227083449420147
16 ms 172.64.33.153
37 2026-08-19 03:52 639227083449420147
16 ms 173.245.59.153
36 2026-08-19 03:36 639227073771748493
2015 ms 172.64.33.153
35 2026-08-19 03:36 639227073771748493
2015 ms 173.245.59.153
34 2026-08-19 03:36 639227073771748493
2015 ms 108.162.193.153
33 2026-08-19 03:20 639227063977347614
23 ms 173.245.59.153
32 2026-08-19 03:20 639227063977347614
23 ms 108.162.193.153
31 2026-08-19 03:20 639227063977347614
23 ms 172.64.33.153
30 2026-08-19 03:04 639227054253519024
22 ms 108.162.193.153
29 2026-08-19 03:04 639227054253519024
22 ms 172.64.33.153
28 2026-08-19 03:04 639227054253519024
22 ms 173.245.59.153
27 2026-08-19 02:47 639227044381963886
4 ms 108.162.193.153
26 2026-08-19 02:47 639227044381963886
4 ms 172.64.33.153
25 2026-08-19 02:47 639227044381963886
4 ms 173.245.59.153
24 2026-08-19 02:31 639227034441085514
13 ms 108.162.193.153
23 2026-08-19 02:31 639227034441085514
13 ms 173.245.59.153
22 2026-08-19 02:31 639227034441085514
13 ms 172.64.33.153
21 2026-08-19 01:38 639227003126489968
13 ms 108.162.193.153
20 2026-08-19 01:38 639227003126489968
13 ms 173.245.59.153
19 2026-08-19 01:38 639227003126489968
13 ms 172.64.33.153
18 2026-08-19 01:22 639226993456311614
9 ms 108.162.193.153
17 2026-08-19 01:22 639226993456311614
9 ms 172.64.33.153
16 2026-08-19 01:22 639226993456311614
9 ms 173.245.59.153
15 2026-08-19 01:06 639226983847312345
3 ms 108.162.193.153
14 2026-08-19 01:06 639226983847312345
3 ms 172.64.33.153
13 2026-08-19 01:06 639226983847312345
3 ms 173.245.59.153
12 2026-08-19 00:50 639226974357874853
5 ms 108.162.193.153
11 2026-08-19 00:50 639226974357874853
5 ms 172.64.33.153
10 2026-08-19 00:50 639226974357874853
5 ms 173.245.59.153
9 2026-08-19 00:34 639226964670484721
8 ms 108.162.193.153
8 2026-08-19 00:34 639226964670484721
8 ms 172.64.33.153
7 2026-08-19 00:34 639226964670484721
8 ms 173.245.59.153
6 2026-08-19 00:18 639226954857899696
42 ms 173.245.59.153
5 2026-08-19 00:18 639226954857899696
42 ms 108.162.193.153
4 2026-08-19 00:18 639226954857899696
42 ms 172.64.33.153
3 2026-08-19 00:02 639226945091603488
2032 ms 108.162.193.153
2 2026-08-19 00:02 639226945091603488
2032 ms 172.64.33.153
1 2026-08-19 00:02 639226945091603488
2032 ms 173.245.59.153