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 2026-08-28. For this date, NameServerHistory found 164 DNS check records, 162 successful responses, 2 failed responses, and 274 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

164

Historical checks stored for this nameserver on selected date

Average Latency

274 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-28 23:44

All timestamps shown in UTC

Latest Resolved IP on Selected Date

172.64.32.81

Most recently resolved hosting IP on selected date

Successful Responses

162

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 cass.ns.cloudflare.com

Showing DNS history for 2026-08-28 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
164 2026-08-28 23:44 639235574865467349
30 ms 172.64.32.81
163 2026-08-28 23:44 639235574865467349
30 ms 173.245.58.81
162 2026-08-28 23:44 639235574865467349
30 ms 108.162.192.81
161 2026-08-28 23:27 639235564640220198
6 ms 108.162.192.81
160 2026-08-28 23:27 639235564640220198
6 ms 172.64.32.81
159 2026-08-28 23:27 639235564640220198
6 ms 173.245.58.81
158 2026-08-28 23:10 639235554328938529
2010 ms 172.64.32.81
157 2026-08-28 23:10 639235554328938529
2010 ms 173.245.58.81
156 2026-08-28 23:10 639235554328938529
2010 ms 108.162.192.81
155 2026-08-28 22:53 639235543879452837
15 ms 108.162.192.81
154 2026-08-28 22:53 639235543879452837
15 ms 172.64.32.81
153 2026-08-28 22:53 639235543879452837
15 ms 173.245.58.81
152 2026-08-28 22:00 639235511923394567
2009 ms 172.64.32.81
151 2026-08-28 22:00 639235511923394567
2009 ms 108.162.192.81
150 2026-08-28 22:00 639235511923394567
2009 ms 173.245.58.81
149 2026-08-28 21:42 639235501571282412
10 ms 108.162.192.81
148 2026-08-28 21:42 639235501571282412
10 ms 172.64.32.81
147 2026-08-28 21:42 639235501571282412
10 ms 173.245.58.81
146 2026-08-28 21:25 639235491147763512
44 ms 173.245.58.81
145 2026-08-28 21:25 639235491147763512
44 ms 172.64.32.81
144 2026-08-28 21:25 639235491147763512
44 ms 108.162.192.81
143 2026-08-28 21:07 639235480607057252
12 ms 173.245.58.81
142 2026-08-28 21:07 639235480607057252
12 ms 108.162.192.81
141 2026-08-28 21:07 639235480607057252
12 ms 172.64.32.81
140 2026-08-28 20:14 639235448504869535
16 ms 108.162.192.81
139 2026-08-28 20:14 639235448504869535
16 ms 172.64.32.81
138 2026-08-28 20:14 639235448504869535
16 ms 173.245.58.81
137 2026-08-28 19:57 639235438205961423
-
136 2026-08-28 19:39 639235427771603643
11 ms 108.162.192.81
135 2026-08-28 19:39 639235427771603643
11 ms 172.64.32.81
134 2026-08-28 19:39 639235427771603643
11 ms 173.245.58.81
133 2026-08-28 19:22 639235417327437217
5 ms 108.162.192.81
132 2026-08-28 19:22 639235417327437217
5 ms 172.64.32.81
131 2026-08-28 19:22 639235417327437217
5 ms 173.245.58.81
130 2026-08-28 18:29 639235385468729647
5 ms 108.162.192.81
129 2026-08-28 18:29 639235385468729647
5 ms 172.64.32.81
128 2026-08-28 18:29 639235385468729647
5 ms 173.245.58.81
127 2026-08-28 18:12 639235375227508188
5 ms 108.162.192.81
126 2026-08-28 18:12 639235375227508188
5 ms 172.64.32.81
125 2026-08-28 18:12 639235375227508188
5 ms 173.245.58.81
124 2026-08-28 17:55 639235364947407812
11 ms 108.162.192.81
123 2026-08-28 17:55 639235364947407812
11 ms 172.64.32.81
122 2026-08-28 17:55 639235364947407812
11 ms 173.245.58.81
121 2026-08-28 17:37 639235354434017190
32 ms 173.245.58.81
120 2026-08-28 17:37 639235354434017190
32 ms 172.64.32.81
119 2026-08-28 17:37 639235354434017190
32 ms 108.162.192.81
118 2026-08-28 16:44 639235322621629103
4 ms 108.162.192.81
117 2026-08-28 16:44 639235322621629103
4 ms 172.64.32.81
116 2026-08-28 16:44 639235322621629103
4 ms 173.245.58.81
115 2026-08-28 16:27 639235312230592801
11 ms 108.162.192.81
114 2026-08-28 16:27 639235312230592801
11 ms 172.64.32.81
113 2026-08-28 16:27 639235312230592801
11 ms 173.245.58.81
112 2026-08-28 16:09 639235301738139314
4 ms 108.162.192.81
111 2026-08-28 16:09 639235301738139314
4 ms 172.64.32.81
110 2026-08-28 16:09 639235301738139314
4 ms 173.245.58.81
109 2026-08-28 15:52 639235291168160936
4 ms 108.162.192.81
108 2026-08-28 15:52 639235291168160936
4 ms 172.64.32.81
107 2026-08-28 15:52 639235291168160936
4 ms 173.245.58.81
106 2026-08-28 14:58 639235258803654519
2029 ms 173.245.58.81
105 2026-08-28 14:58 639235258803654519
2029 ms 172.64.32.81
104 2026-08-28 14:58 639235258803654519
2029 ms 108.162.192.81
103 2026-08-28 14:41 639235248596087996
6 ms 108.162.192.81
102 2026-08-28 14:41 639235248596087996
6 ms 172.64.32.81
101 2026-08-28 14:41 639235248596087996
6 ms 173.245.58.81
100 2026-08-28 14:23 639235238225955920
30 ms 108.162.192.81
99 2026-08-28 14:23 639235238225955920
30 ms 172.64.32.81
98 2026-08-28 14:23 639235238225955920
30 ms 173.245.58.81
97 2026-08-28 14:06 639235227727862105
5 ms 108.162.192.81
96 2026-08-28 14:06 639235227727862105
5 ms 172.64.32.81
95 2026-08-28 14:06 639235227727862105
5 ms 173.245.58.81
94 2026-08-28 13:12 639235195230848570
5 ms 108.162.192.81
93 2026-08-28 13:12 639235195230848570
5 ms 172.64.32.81
92 2026-08-28 13:12 639235195230848570
5 ms 173.245.58.81
91 2026-08-28 12:54 639235184840503274
25 ms 108.162.192.81
90 2026-08-28 12:54 639235184840503274
25 ms 172.64.32.81
89 2026-08-28 12:54 639235184840503274
25 ms 173.245.58.81
88 2026-08-28 12:37 639235174453894956
20 ms 108.162.192.81
87 2026-08-28 12:37 639235174453894956
20 ms 172.64.32.81
86 2026-08-28 12:37 639235174453894956
20 ms 173.245.58.81
85 2026-08-28 12:20 639235163898672622
5 ms 108.162.192.81
84 2026-08-28 12:20 639235163898672622
5 ms 172.64.32.81
83 2026-08-28 12:20 639235163898672622
5 ms 173.245.58.81
82 2026-08-28 11:27 639235132147470568
-
81 2026-08-28 11:10 639235121907744088
3 ms 108.162.192.81
80 2026-08-28 11:10 639235121907744088
3 ms 172.64.32.81
79 2026-08-28 11:10 639235121907744088
3 ms 173.245.58.81
78 2026-08-28 10:52 639235111428014262
5 ms 108.162.192.81
77 2026-08-28 10:52 639235111428014262
5 ms 172.64.32.81
76 2026-08-28 10:52 639235111428014262
5 ms 173.245.58.81
75 2026-08-28 10:35 639235100921813626
15 ms 108.162.192.81
74 2026-08-28 10:35 639235100921813626
15 ms 172.64.32.81
73 2026-08-28 10:35 639235100921813626
15 ms 173.245.58.81
72 2026-08-28 09:41 639235068670703481
80 ms 108.162.192.81
71 2026-08-28 09:41 639235068670703481
80 ms 172.64.32.81
70 2026-08-28 09:41 639235068670703481
80 ms 173.245.58.81
69 2026-08-28 09:24 639235058337459445
2017 ms 173.245.58.81
68 2026-08-28 09:24 639235058337459445
2017 ms 172.64.32.81
67 2026-08-28 09:24 639235058337459445
2017 ms 108.162.192.81
66 2026-08-28 09:06 639235047825109146
7 ms 108.162.192.81
65 2026-08-28 09:06 639235047825109146
7 ms 172.64.32.81
64 2026-08-28 09:06 639235047825109146
7 ms 173.245.58.81
63 2026-08-28 08:49 639235037383229033
3 ms 108.162.192.81
62 2026-08-28 08:49 639235037383229033
3 ms 172.64.32.81
61 2026-08-28 08:49 639235037383229033
3 ms 173.245.58.81
60 2026-08-28 07:56 639235005619242711
7 ms 108.162.192.81
59 2026-08-28 07:56 639235005619242711
7 ms 172.64.32.81
58 2026-08-28 07:56 639235005619242711
7 ms 173.245.58.81
57 2026-08-28 07:39 639234995310346584
6 ms 108.162.192.81
56 2026-08-28 07:39 639234995310346584
6 ms 172.64.32.81
55 2026-08-28 07:39 639234995310346584
6 ms 173.245.58.81
54 2026-08-28 07:21 639234984946548933
4 ms 108.162.192.81
53 2026-08-28 07:21 639234984946548933
4 ms 172.64.32.81
52 2026-08-28 07:21 639234984946548933
4 ms 173.245.58.81
51 2026-08-28 07:04 639234974608077290
4 ms 108.162.192.81
50 2026-08-28 07:04 639234974608077290
4 ms 172.64.32.81
49 2026-08-28 07:04 639234974608077290
4 ms 173.245.58.81
48 2026-08-28 06:11 639234942529845595
48 ms 108.162.192.81
47 2026-08-28 06:11 639234942529845595
48 ms 172.64.32.81
46 2026-08-28 06:11 639234942529845595
48 ms 173.245.58.81
45 2026-08-28 05:54 639234932259126627
4012 ms 172.64.32.81
44 2026-08-28 05:54 639234932259126627
4012 ms 108.162.192.81
43 2026-08-28 05:54 639234932259126627
4012 ms 173.245.58.81
42 2026-08-28 05:36 639234921916735988
7 ms 108.162.192.81
41 2026-08-28 05:36 639234921916735988
7 ms 172.64.32.81
40 2026-08-28 05:36 639234921916735988
7 ms 173.245.58.81
39 2026-08-28 05:19 639234911470038027
34 ms 173.245.58.81
38 2026-08-28 05:19 639234911470038027
34 ms 108.162.192.81
37 2026-08-28 05:19 639234911470038027
34 ms 172.64.32.81
36 2026-08-28 04:26 639234879588411654
24 ms 108.162.192.81
35 2026-08-28 04:26 639234879588411654
24 ms 172.64.32.81
34 2026-08-28 04:26 639234879588411654
24 ms 173.245.58.81
33 2026-08-28 04:09 639234869341589104
21 ms 108.162.192.81
32 2026-08-28 04:09 639234869341589104
21 ms 172.64.32.81
31 2026-08-28 04:09 639234869341589104
21 ms 173.245.58.81
30 2026-08-28 03:51 639234859012216675
3 ms 108.162.192.81
29 2026-08-28 03:51 639234859012216675
3 ms 172.64.32.81
28 2026-08-28 03:51 639234859012216675
3 ms 173.245.58.81
27 2026-08-28 03:34 639234848695364934
3 ms 108.162.192.81
26 2026-08-28 03:34 639234848695364934
3 ms 172.64.32.81
25 2026-08-28 03:34 639234848695364934
3 ms 173.245.58.81
24 2026-08-28 02:41 639234816952458162
2018 ms 108.162.192.81
23 2026-08-28 02:41 639234816952458162
2018 ms 172.64.32.81
22 2026-08-28 02:41 639234816952458162
2018 ms 173.245.58.81
21 2026-08-28 02:24 639234806773081598
16 ms 108.162.192.81
20 2026-08-28 02:24 639234806773081598
16 ms 172.64.32.81
19 2026-08-28 02:24 639234806773081598
16 ms 173.245.58.81
18 2026-08-28 02:07 639234796382955255
4 ms 108.162.192.81
17 2026-08-28 02:07 639234796382955255
4 ms 172.64.32.81
16 2026-08-28 02:07 639234796382955255
4 ms 173.245.58.81
15 2026-08-28 01:50 639234786015782563
2 ms 108.162.192.81
14 2026-08-28 01:50 639234786015782563
2 ms 172.64.32.81
13 2026-08-28 01:50 639234786015782563
2 ms 173.245.58.81
12 2026-08-28 00:56 639234753811917646
3 ms 108.162.192.81
11 2026-08-28 00:56 639234753811917646
3 ms 172.64.32.81
10 2026-08-28 00:56 639234753811917646
3 ms 173.245.58.81
9 2026-08-28 00:39 639234743739767811
3 ms 108.162.192.81
8 2026-08-28 00:39 639234743739767811
3 ms 172.64.32.81
7 2026-08-28 00:39 639234743739767811
3 ms 173.245.58.81
6 2026-08-28 00:22 639234733372362811
21 ms 108.162.192.81
5 2026-08-28 00:22 639234733372362811
21 ms 172.64.32.81
4 2026-08-28 00:22 639234733372362811
21 ms 173.245.58.81
3 2026-08-28 00:05 639234723048550337
66 ms 108.162.192.81
2 2026-08-28 00:05 639234723048550337
66 ms 173.245.58.81
1 2026-08-28 00:05 639234723048550337
66 ms 172.64.32.81