DNS response history for cass.ns.cloudflare.com

cass.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 2026-08-23. For this date, NameServerHistory found 219 DNS check records, 216 successful responses, 3 failed responses, and 186 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 cass.ns.cloudflare.com.
Records on Selected Date

219

Historical checks stored for this nameserver on selected date

Average Latency

186 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-23 23:44

All timestamps shown in UTC

Latest Resolved IP on Selected Date

108.162.192.81

Most recently resolved hosting IP on selected date

Successful Responses

216

Checks that returned a measurable response

Failed Responses

3

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 cass.ns.cloudflare.com

Showing DNS history for 2026-08-23 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
219 2026-08-23 23:44 639231254406598736
3 ms 108.162.192.81
218 2026-08-23 23:44 639231254406598736
3 ms 172.64.32.81
217 2026-08-23 23:44 639231254406598736
3 ms 173.245.58.81
216 2026-08-23 23:28 639231244697865594
5 ms 108.162.192.81
215 2026-08-23 23:28 639231244697865594
5 ms 172.64.32.81
214 2026-08-23 23:28 639231244697865594
5 ms 173.245.58.81
213 2026-08-23 23:11 639231234893504693
4 ms 108.162.192.81
212 2026-08-23 23:11 639231234893504693
4 ms 172.64.32.81
211 2026-08-23 23:11 639231234893504693
4 ms 173.245.58.81
210 2026-08-23 22:55 639231225024549139
40 ms 108.162.192.81
209 2026-08-23 22:55 639231225024549139
40 ms 172.64.32.81
208 2026-08-23 22:55 639231225024549139
40 ms 173.245.58.81
207 2026-08-23 22:38 639231214931957622
14 ms 108.162.192.81
206 2026-08-23 22:38 639231214931957622
14 ms 172.64.32.81
205 2026-08-23 22:38 639231214931957622
14 ms 173.245.58.81
204 2026-08-23 22:21 639231204962010549
-
203 2026-08-23 22:05 639231195170138463
35 ms 172.64.32.81
202 2026-08-23 22:05 639231195170138463
35 ms 173.245.58.81
201 2026-08-23 22:05 639231195170138463
35 ms 108.162.192.81
200 2026-08-23 21:48 639231185235020577
24 ms 108.162.192.81
199 2026-08-23 21:48 639231185235020577
24 ms 172.64.32.81
198 2026-08-23 21:48 639231185235020577
24 ms 173.245.58.81
197 2026-08-23 21:32 639231175558690075
4024 ms 108.162.192.81
196 2026-08-23 21:32 639231175558690075
4024 ms 173.245.58.81
195 2026-08-23 21:32 639231175558690075
4024 ms 172.64.32.81
194 2026-08-23 21:16 639231165610444012
11 ms 108.162.192.81
193 2026-08-23 21:16 639231165610444012
11 ms 172.64.32.81
192 2026-08-23 21:16 639231165610444012
11 ms 173.245.58.81
191 2026-08-23 20:23 639231133806425363
14 ms 108.162.192.81
190 2026-08-23 20:23 639231133806425363
14 ms 172.64.32.81
189 2026-08-23 20:23 639231133806425363
14 ms 173.245.58.81
188 2026-08-23 20:07 639231124203758023
12 ms 108.162.192.81
187 2026-08-23 20:07 639231124203758023
12 ms 172.64.32.81
186 2026-08-23 20:07 639231124203758023
12 ms 173.245.58.81
185 2026-08-23 19:50 639231114428262706
3 ms 108.162.192.81
184 2026-08-23 19:50 639231114428262706
3 ms 172.64.32.81
183 2026-08-23 19:50 639231114428262706
3 ms 173.245.58.81
182 2026-08-23 19:34 639231104662480065
42 ms 173.245.58.81
181 2026-08-23 19:34 639231104662480065
42 ms 172.64.32.81
180 2026-08-23 19:34 639231104662480065
42 ms 108.162.192.81
179 2026-08-23 19:18 639231094840372018
6 ms 108.162.192.81
178 2026-08-23 19:18 639231094840372018
6 ms 172.64.32.81
177 2026-08-23 19:18 639231094840372018
6 ms 173.245.58.81
176 2026-08-23 19:01 639231085024583224
23 ms 108.162.192.81
175 2026-08-23 19:01 639231085024583224
23 ms 172.64.32.81
174 2026-08-23 19:01 639231085024583224
23 ms 173.245.58.81
173 2026-08-23 18:45 639231075257417427
5 ms 108.162.192.81
172 2026-08-23 18:45 639231075257417427
5 ms 172.64.32.81
171 2026-08-23 18:45 639231075257417427
5 ms 173.245.58.81
170 2026-08-23 18:29 639231065516009503
27 ms 108.162.192.81
169 2026-08-23 18:29 639231065516009503
27 ms 172.64.32.81
168 2026-08-23 18:29 639231065516009503
27 ms 173.245.58.81
167 2026-08-23 18:13 639231055805348837
47 ms 108.162.192.81
166 2026-08-23 18:13 639231055805348837
47 ms 172.64.32.81
165 2026-08-23 18:13 639231055805348837
47 ms 173.245.58.81
164 2026-08-23 17:56 639231045980373765
28 ms 108.162.192.81
163 2026-08-23 17:56 639231045980373765
28 ms 172.64.32.81
162 2026-08-23 17:56 639231045980373765
28 ms 173.245.58.81
161 2026-08-23 17:40 639231035984577527
2025 ms 172.64.32.81
160 2026-08-23 17:40 639231035984577527
2025 ms 173.245.58.81
159 2026-08-23 17:40 639231035984577527
2025 ms 108.162.192.81
158 2026-08-23 17:23 639231025928115303
2068 ms 108.162.192.81
157 2026-08-23 17:23 639231025928115303
2068 ms 173.245.58.81
156 2026-08-23 17:23 639231025928115303
2068 ms 172.64.32.81
155 2026-08-23 16:30 639230994250157583
8 ms 108.162.192.81
154 2026-08-23 16:30 639230994250157583
8 ms 172.64.32.81
153 2026-08-23 16:30 639230994250157583
8 ms 173.245.58.81
152 2026-08-23 16:14 639230984476411369
44 ms 108.162.192.81
151 2026-08-23 16:14 639230984476411369
44 ms 172.64.32.81
150 2026-08-23 16:14 639230984476411369
44 ms 173.245.58.81
149 2026-08-23 15:58 639230974838373450
14 ms 172.64.32.81
148 2026-08-23 15:58 639230974838373450
14 ms 173.245.58.81
147 2026-08-23 15:58 639230974838373450
14 ms 108.162.192.81
146 2026-08-23 15:42 639230965244277645
26 ms 108.162.192.81
145 2026-08-23 15:42 639230965244277645
26 ms 172.64.32.81
144 2026-08-23 15:42 639230965244277645
26 ms 173.245.58.81
143 2026-08-23 15:26 639230955522101820
25 ms 108.162.192.81
142 2026-08-23 15:26 639230955522101820
25 ms 172.64.32.81
141 2026-08-23 15:26 639230955522101820
25 ms 173.245.58.81
140 2026-08-23 15:09 639230945754521603
10 ms 108.162.192.81
139 2026-08-23 15:09 639230945754521603
10 ms 172.64.32.81
138 2026-08-23 15:09 639230945754521603
10 ms 173.245.58.81
137 2026-08-23 14:53 639230935852040504
17 ms 108.162.192.81
136 2026-08-23 14:53 639230935852040504
17 ms 172.64.32.81
135 2026-08-23 14:53 639230935852040504
17 ms 173.245.58.81
134 2026-08-23 14:37 639230926222061048
6 ms 108.162.192.81
133 2026-08-23 14:37 639230926222061048
6 ms 172.64.32.81
132 2026-08-23 14:37 639230926222061048
6 ms 173.245.58.81
131 2026-08-23 14:20 639230916449726907
4 ms 108.162.192.81
130 2026-08-23 14:20 639230916449726907
4 ms 172.64.32.81
129 2026-08-23 14:20 639230916449726907
4 ms 173.245.58.81
128 2026-08-23 14:04 639230906595053086
62 ms 108.162.192.81
127 2026-08-23 14:04 639230906595053086
62 ms 172.64.32.81
126 2026-08-23 14:04 639230906595053086
62 ms 173.245.58.81
125 2026-08-23 13:48 639230896680429441
8 ms 108.162.192.81
124 2026-08-23 13:48 639230896680429441
8 ms 173.245.58.81
123 2026-08-23 13:48 639230896680429441
8 ms 172.64.32.81
122 2026-08-23 13:31 639230886630210965
23 ms 108.162.192.81
121 2026-08-23 13:31 639230886630210965
23 ms 172.64.32.81
120 2026-08-23 13:31 639230886630210965
23 ms 173.245.58.81
119 2026-08-23 12:39 639230855430405719
4 ms 108.162.192.81
118 2026-08-23 12:39 639230855430405719
4 ms 172.64.32.81
117 2026-08-23 12:39 639230855430405719
4 ms 173.245.58.81
116 2026-08-23 12:23 639230845707499136
6 ms 108.162.192.81
115 2026-08-23 12:23 639230845707499136
6 ms 172.64.32.81
114 2026-08-23 12:23 639230845707499136
6 ms 173.245.58.81
113 2026-08-23 12:07 639230836186805419
36 ms 108.162.192.81
112 2026-08-23 12:07 639230836186805419
36 ms 172.64.32.81
111 2026-08-23 12:07 639230836186805419
36 ms 173.245.58.81
110 2026-08-23 11:51 639230826493828316
25 ms 108.162.192.81
109 2026-08-23 11:51 639230826493828316
25 ms 172.64.32.81
108 2026-08-23 11:51 639230826493828316
25 ms 173.245.58.81
107 2026-08-23 11:34 639230816817882996
6 ms 108.162.192.81
106 2026-08-23 11:34 639230816817882996
6 ms 172.64.32.81
105 2026-08-23 11:34 639230816817882996
6 ms 173.245.58.81
104 2026-08-23 11:18 639230806933854189
9 ms 108.162.192.81
103 2026-08-23 11:18 639230806933854189
9 ms 172.64.32.81
102 2026-08-23 11:18 639230806933854189
9 ms 173.245.58.81
101 2026-08-23 11:02 639230797120243854
7 ms 108.162.192.81
100 2026-08-23 11:02 639230797120243854
7 ms 172.64.32.81
99 2026-08-23 11:02 639230797120243854
7 ms 173.245.58.81
98 2026-08-23 10:45 639230787310272840
26 ms 173.245.58.81
97 2026-08-23 10:45 639230787310272840
26 ms 108.162.192.81
96 2026-08-23 10:45 639230787310272840
26 ms 172.64.32.81
95 2026-08-23 10:29 639230777600173142
4 ms 108.162.192.81
94 2026-08-23 10:29 639230777600173142
4 ms 172.64.32.81
93 2026-08-23 10:29 639230777600173142
4 ms 173.245.58.81
92 2026-08-23 10:13 639230767665024593
5 ms 108.162.192.81
91 2026-08-23 10:13 639230767665024593
5 ms 172.64.32.81
90 2026-08-23 10:13 639230767665024593
5 ms 173.245.58.81
89 2026-08-23 09:56 639230757720962293
65 ms 172.64.32.81
88 2026-08-23 09:56 639230757720962293
65 ms 173.245.58.81
87 2026-08-23 09:56 639230757720962293
65 ms 108.162.192.81
86 2026-08-23 09:39 639230747722189784
2010 ms 172.64.32.81
85 2026-08-23 09:39 639230747722189784
2010 ms 173.245.58.81
84 2026-08-23 09:39 639230747722189784
2010 ms 108.162.192.81
83 2026-08-23 08:47 639230716313923480
27 ms 108.162.192.81
82 2026-08-23 08:47 639230716313923480
27 ms 172.64.32.81
81 2026-08-23 08:47 639230716313923480
27 ms 173.245.58.81
80 2026-08-23 08:31 639230706813835990
23 ms 108.162.192.81
79 2026-08-23 08:31 639230706813835990
23 ms 172.64.32.81
78 2026-08-23 08:31 639230706813835990
23 ms 173.245.58.81
77 2026-08-23 08:15 639230696871062203
56 ms 108.162.192.81
76 2026-08-23 08:15 639230696871062203
56 ms 172.64.32.81
75 2026-08-23 08:15 639230696871062203
56 ms 173.245.58.81
74 2026-08-23 07:58 639230687142781616
-
73 2026-08-23 07:42 639230677432142227
46 ms 108.162.192.81
72 2026-08-23 07:42 639230677432142227
46 ms 172.64.32.81
71 2026-08-23 07:42 639230677432142227
46 ms 173.245.58.81
70 2026-08-23 07:26 639230667686258061
9 ms 173.245.58.81
69 2026-08-23 07:26 639230667686258061
9 ms 172.64.32.81
68 2026-08-23 07:26 639230667686258061
9 ms 108.162.192.81
67 2026-08-23 07:10 639230658039243685
3 ms 108.162.192.81
66 2026-08-23 07:10 639230658039243685
3 ms 172.64.32.81
65 2026-08-23 07:10 639230658039243685
3 ms 173.245.58.81
64 2026-08-23 06:54 639230648468473803
10 ms 108.162.192.81
63 2026-08-23 06:54 639230648468473803
10 ms 172.64.32.81
62 2026-08-23 06:54 639230648468473803
10 ms 173.245.58.81
61 2026-08-23 06:38 639230638829658294
14 ms 172.64.32.81
60 2026-08-23 06:38 639230638829658294
14 ms 108.162.192.81
59 2026-08-23 06:38 639230638829658294
14 ms 173.245.58.81
58 2026-08-23 06:22 639230629247017617
2010 ms 108.162.192.81
57 2026-08-23 06:22 639230629247017617
2010 ms 173.245.58.81
56 2026-08-23 06:22 639230629247017617
2010 ms 172.64.32.81
55 2026-08-23 06:06 639230619625318239
6 ms 108.162.192.81
54 2026-08-23 06:06 639230619625318239
6 ms 172.64.32.81
53 2026-08-23 06:06 639230619625318239
6 ms 173.245.58.81
52 2026-08-23 05:49 639230609697630264
4 ms 108.162.192.81
51 2026-08-23 05:49 639230609697630264
4 ms 172.64.32.81
50 2026-08-23 05:49 639230609697630264
4 ms 173.245.58.81
49 2026-08-23 04:57 639230578570131864
11 ms 108.162.192.81
48 2026-08-23 04:57 639230578570131864
11 ms 172.64.32.81
47 2026-08-23 04:57 639230578570131864
11 ms 173.245.58.81
46 2026-08-23 04:41 639230568958963168
9 ms 108.162.192.81
45 2026-08-23 04:41 639230568958963168
9 ms 172.64.32.81
44 2026-08-23 04:41 639230568958963168
9 ms 173.245.58.81
43 2026-08-23 04:25 639230559287611211
5 ms 108.162.192.81
42 2026-08-23 04:25 639230559287611211
5 ms 172.64.32.81
41 2026-08-23 04:25 639230559287611211
5 ms 173.245.58.81
40 2026-08-23 04:09 639230549524312030
4 ms 108.162.192.81
39 2026-08-23 04:09 639230549524312030
4 ms 172.64.32.81
38 2026-08-23 04:09 639230549524312030
4 ms 173.245.58.81
37 2026-08-23 03:53 639230539739801669
5 ms 108.162.192.81
36 2026-08-23 03:53 639230539739801669
5 ms 172.64.32.81
35 2026-08-23 03:53 639230539739801669
5 ms 173.245.58.81
34 2026-08-23 03:37 639230530084069375
-
33 2026-08-23 03:20 639230520362691441
6 ms 108.162.192.81
32 2026-08-23 03:20 639230520362691441
6 ms 172.64.32.81
31 2026-08-23 03:20 639230520362691441
6 ms 173.245.58.81
30 2026-08-23 03:04 639230510677194518
25 ms 108.162.192.81
29 2026-08-23 03:04 639230510677194518
25 ms 172.64.32.81
28 2026-08-23 03:04 639230510677194518
25 ms 173.245.58.81
27 2026-08-23 02:48 639230501156002646
17 ms 108.162.192.81
26 2026-08-23 02:48 639230501156002646
17 ms 172.64.32.81
25 2026-08-23 02:48 639230501156002646
17 ms 173.245.58.81
24 2026-08-23 02:32 639230491502198541
10 ms 108.162.192.81
23 2026-08-23 02:32 639230491502198541
10 ms 172.64.32.81
22 2026-08-23 02:32 639230491502198541
10 ms 173.245.58.81
21 2026-08-23 02:16 639230481860318494
9 ms 108.162.192.81
20 2026-08-23 02:16 639230481860318494
9 ms 172.64.32.81
19 2026-08-23 02:16 639230481860318494
9 ms 173.245.58.81
18 2026-08-23 02:00 639230471893008575
31 ms 108.162.192.81
17 2026-08-23 02:00 639230471893008575
31 ms 172.64.32.81
16 2026-08-23 02:00 639230471893008575
31 ms 173.245.58.81
15 2026-08-23 01:06 639230440030877421
50 ms 108.162.192.81
14 2026-08-23 01:06 639230440030877421
50 ms 172.64.32.81
13 2026-08-23 01:06 639230440030877421
50 ms 173.245.58.81
12 2026-08-23 00:51 639230430479725508
3 ms 108.162.192.81
11 2026-08-23 00:51 639230430479725508
3 ms 172.64.32.81
10 2026-08-23 00:51 639230430479725508
3 ms 173.245.58.81
9 2026-08-23 00:35 639230420875160219
7 ms 108.162.192.81
8 2026-08-23 00:35 639230420875160219
7 ms 172.64.32.81
7 2026-08-23 00:35 639230420875160219
7 ms 173.245.58.81
6 2026-08-23 00:18 639230411240692575
86 ms 108.162.192.81
5 2026-08-23 00:18 639230411240692575
86 ms 173.245.58.81
4 2026-08-23 00:18 639230411240692575
86 ms 172.64.32.81
3 2026-08-23 00:02 639230401550806607
9 ms 108.162.192.81
2 2026-08-23 00:02 639230401550806607
9 ms 172.64.32.81
1 2026-08-23 00:02 639230401550806607
9 ms 173.245.58.81