DNS response history for sullivan.ns.cloudflare.com

sullivan.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 2026-08-26. For this date, NameServerHistory found 206 DNS check records, 204 successful responses, 2 failed responses, and 195 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 sullivan.ns.cloudflare.com.
Records on Selected Date

206

Historical checks stored for this nameserver on selected date

Average Latency

195 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 23:48

All timestamps shown in UTC

Latest Resolved IP on Selected Date

108.162.195.161

Most recently resolved hosting IP on selected date

Successful Responses

204

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 sullivan.ns.cloudflare.com

Showing DNS history for 2026-08-26 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
206 2026-08-26 23:48 639233846871926285
8 ms 108.162.195.161
205 2026-08-26 23:48 639233846871926285
8 ms 162.159.44.161
204 2026-08-26 23:48 639233846871926285
8 ms 172.64.35.161
203 2026-08-26 22:54 639233814527872887
6 ms 108.162.195.161
202 2026-08-26 22:54 639233814527872887
6 ms 162.159.44.161
201 2026-08-26 22:54 639233814527872887
6 ms 172.64.35.161
200 2026-08-26 22:37 639233804315489381
7 ms 162.159.44.161
199 2026-08-26 22:37 639233804315489381
7 ms 108.162.195.161
198 2026-08-26 22:37 639233804315489381
7 ms 172.64.35.161
197 2026-08-26 22:20 639233793971346256
2027 ms 108.162.195.161
196 2026-08-26 22:20 639233793971346256
2027 ms 172.64.35.161
195 2026-08-26 22:20 639233793971346256
2027 ms 162.159.44.161
194 2026-08-26 22:03 639233783644630463
2012 ms 162.159.44.161
193 2026-08-26 22:03 639233783644630463
2012 ms 108.162.195.161
192 2026-08-26 22:03 639233783644630463
2012 ms 172.64.35.161
191 2026-08-26 21:45 639233773302621314
11 ms 172.64.35.161
190 2026-08-26 21:45 639233773302621314
11 ms 162.159.44.161
189 2026-08-26 21:45 639233773302621314
11 ms 108.162.195.161
188 2026-08-26 21:28 639233762896723748
13 ms 108.162.195.161
187 2026-08-26 21:28 639233762896723748
13 ms 162.159.44.161
186 2026-08-26 21:28 639233762896723748
13 ms 172.64.35.161
185 2026-08-26 21:11 639233752543876329
4 ms 108.162.195.161
184 2026-08-26 21:11 639233752543876329
4 ms 162.159.44.161
183 2026-08-26 21:11 639233752543876329
4 ms 172.64.35.161
182 2026-08-26 20:53 639233742155931788
7 ms 108.162.195.161
181 2026-08-26 20:53 639233742155931788
7 ms 162.159.44.161
180 2026-08-26 20:53 639233742155931788
7 ms 172.64.35.161
179 2026-08-26 20:36 639233731712555311
5 ms 108.162.195.161
178 2026-08-26 20:36 639233731712555311
5 ms 162.159.44.161
177 2026-08-26 20:36 639233731712555311
5 ms 172.64.35.161
176 2026-08-26 20:18 639233721164051126
9 ms 108.162.195.161
175 2026-08-26 20:18 639233721164051126
9 ms 162.159.44.161
174 2026-08-26 20:18 639233721164051126
9 ms 172.64.35.161
173 2026-08-26 20:01 639233710560486320
9 ms 108.162.195.161
172 2026-08-26 20:01 639233710560486320
9 ms 162.159.44.161
171 2026-08-26 20:01 639233710560486320
9 ms 172.64.35.161
170 2026-08-26 19:43 639233699834667450
33 ms 108.162.195.161
169 2026-08-26 19:43 639233699834667450
33 ms 162.159.44.161
168 2026-08-26 19:43 639233699834667450
33 ms 172.64.35.161
167 2026-08-26 18:48 639233667209186136
41 ms 108.162.195.161
166 2026-08-26 18:48 639233667209186136
41 ms 162.159.44.161
165 2026-08-26 18:48 639233667209186136
41 ms 172.64.35.161
164 2026-08-26 18:31 639233656814316266
6 ms 108.162.195.161
163 2026-08-26 18:31 639233656814316266
6 ms 162.159.44.161
162 2026-08-26 18:31 639233656814316266
6 ms 172.64.35.161
161 2026-08-26 18:14 639233646245051806
13 ms 108.162.195.161
160 2026-08-26 18:14 639233646245051806
13 ms 162.159.44.161
159 2026-08-26 18:14 639233646245051806
13 ms 172.64.35.161
158 2026-08-26 17:56 639233635663779051
17 ms 162.159.44.161
157 2026-08-26 17:56 639233635663779051
17 ms 108.162.195.161
156 2026-08-26 17:56 639233635663779051
17 ms 172.64.35.161
155 2026-08-26 17:38 639233624977342122
9 ms 108.162.195.161
154 2026-08-26 17:38 639233624977342122
9 ms 162.159.44.161
153 2026-08-26 17:38 639233624977342122
9 ms 172.64.35.161
152 2026-08-26 17:21 639233614446136153
8 ms 108.162.195.161
151 2026-08-26 17:21 639233614446136153
8 ms 162.159.44.161
150 2026-08-26 17:21 639233614446136153
8 ms 172.64.35.161
149 2026-08-26 17:03 639233603737877581
55 ms 108.162.195.161
148 2026-08-26 17:03 639233603737877581
55 ms 162.159.44.161
147 2026-08-26 17:03 639233603737877581
55 ms 172.64.35.161
146 2026-08-26 16:45 639233593269224651
3 ms 108.162.195.161
145 2026-08-26 16:45 639233593269224651
3 ms 162.159.44.161
144 2026-08-26 16:45 639233593269224651
3 ms 172.64.35.161
143 2026-08-26 16:28 639233582635086903
58 ms 162.159.44.161
142 2026-08-26 16:28 639233582635086903
58 ms 172.64.35.161
141 2026-08-26 16:28 639233582635086903
58 ms 108.162.195.161
140 2026-08-26 16:10 639233572000374575
2024 ms 162.159.44.161
139 2026-08-26 16:10 639233572000374575
2024 ms 108.162.195.161
138 2026-08-26 16:10 639233572000374575
2024 ms 172.64.35.161
137 2026-08-26 15:52 639233561188633861
10 ms 108.162.195.161
136 2026-08-26 15:52 639233561188633861
10 ms 162.159.44.161
135 2026-08-26 15:52 639233561188633861
10 ms 172.64.35.161
134 2026-08-26 15:34 639233550544357027
2027 ms 162.159.44.161
133 2026-08-26 15:34 639233550544357027
2027 ms 108.162.195.161
132 2026-08-26 15:34 639233550544357027
2027 ms 172.64.35.161
131 2026-08-26 14:40 639233517966053117
17 ms 162.159.44.161
130 2026-08-26 14:40 639233517966053117
17 ms 108.162.195.161
129 2026-08-26 14:40 639233517966053117
17 ms 172.64.35.161
128 2026-08-26 14:23 639233507603253585
6 ms 108.162.195.161
127 2026-08-26 14:23 639233507603253585
6 ms 162.159.44.161
126 2026-08-26 14:23 639233507603253585
6 ms 172.64.35.161
125 2026-08-26 14:05 639233497229039167
39 ms 108.162.195.161
124 2026-08-26 14:05 639233497229039167
39 ms 162.159.44.161
123 2026-08-26 14:05 639233497229039167
39 ms 172.64.35.161
122 2026-08-26 13:48 639233486864546406
7 ms 108.162.195.161
121 2026-08-26 13:48 639233486864546406
7 ms 162.159.44.161
120 2026-08-26 13:48 639233486864546406
7 ms 172.64.35.161
119 2026-08-26 13:31 639233476455174682
19 ms 108.162.195.161
118 2026-08-26 13:31 639233476455174682
19 ms 162.159.44.161
117 2026-08-26 13:31 639233476455174682
19 ms 172.64.35.161
116 2026-08-26 13:13 639233466171592605
8 ms 108.162.195.161
115 2026-08-26 13:13 639233466171592605
8 ms 162.159.44.161
114 2026-08-26 13:13 639233466171592605
8 ms 172.64.35.161
113 2026-08-26 12:56 639233455747096265
35 ms 162.159.44.161
112 2026-08-26 12:56 639233455747096265
35 ms 108.162.195.161
111 2026-08-26 12:56 639233455747096265
35 ms 172.64.35.161
110 2026-08-26 12:39 639233445367152284
4 ms 108.162.195.161
109 2026-08-26 12:39 639233445367152284
4 ms 162.159.44.161
108 2026-08-26 12:39 639233445367152284
4 ms 172.64.35.161
107 2026-08-26 12:22 639233434974187439
22 ms 108.162.195.161
106 2026-08-26 12:22 639233434974187439
22 ms 162.159.44.161
105 2026-08-26 12:22 639233434974187439
22 ms 172.64.35.161
104 2026-08-26 12:04 639233424567558554
20 ms 108.162.195.161
103 2026-08-26 12:04 639233424567558554
20 ms 162.159.44.161
102 2026-08-26 12:04 639233424567558554
20 ms 172.64.35.161
101 2026-08-26 11:47 639233414056832719
21 ms 108.162.195.161
100 2026-08-26 11:47 639233414056832719
21 ms 162.159.44.161
99 2026-08-26 11:47 639233414056832719
21 ms 172.64.35.161
98 2026-08-26 11:29 639233403515141099
2011 ms 108.162.195.161
97 2026-08-26 11:29 639233403515141099
2011 ms 172.64.35.161
96 2026-08-26 11:29 639233403515141099
2011 ms 162.159.44.161
95 2026-08-26 10:34 639233370841350248
7 ms 108.162.195.161
94 2026-08-26 10:34 639233370841350248
7 ms 162.159.44.161
93 2026-08-26 10:34 639233370841350248
7 ms 172.64.35.161
92 2026-08-26 10:17 639233360361507238
15 ms 108.162.195.161
91 2026-08-26 10:17 639233360361507238
15 ms 162.159.44.161
90 2026-08-26 10:17 639233360361507238
15 ms 172.64.35.161
89 2026-08-26 10:00 639233350067824371
10 ms 108.162.195.161
88 2026-08-26 10:00 639233350067824371
10 ms 162.159.44.161
87 2026-08-26 10:00 639233350067824371
10 ms 172.64.35.161
86 2026-08-26 09:43 639233339545274518
14 ms 108.162.195.161
85 2026-08-26 09:43 639233339545274518
14 ms 162.159.44.161
84 2026-08-26 09:43 639233339545274518
14 ms 172.64.35.161
83 2026-08-26 09:25 639233329214918079
8 ms 108.162.195.161
82 2026-08-26 09:25 639233329214918079
8 ms 162.159.44.161
81 2026-08-26 09:25 639233329214918079
8 ms 172.64.35.161
80 2026-08-26 09:08 639233318749762337
7 ms 108.162.195.161
79 2026-08-26 09:08 639233318749762337
7 ms 162.159.44.161
78 2026-08-26 09:08 639233318749762337
7 ms 172.64.35.161
77 2026-08-26 08:50 639233308387917838
31 ms 108.162.195.161
76 2026-08-26 08:50 639233308387917838
31 ms 162.159.44.161
75 2026-08-26 08:50 639233308387917838
31 ms 172.64.35.161
74 2026-08-26 08:33 639233297961740122
35 ms 172.64.35.161
73 2026-08-26 08:33 639233297961740122
35 ms 108.162.195.161
72 2026-08-26 08:33 639233297961740122
35 ms 162.159.44.161
71 2026-08-26 08:16 639233287487159094
18 ms 108.162.195.161
70 2026-08-26 08:16 639233287487159094
18 ms 162.159.44.161
69 2026-08-26 08:16 639233287487159094
18 ms 172.64.35.161
68 2026-08-26 07:58 639233276995531707
31 ms 108.162.195.161
67 2026-08-26 07:58 639233276995531707
31 ms 162.159.44.161
66 2026-08-26 07:58 639233276995531707
31 ms 172.64.35.161
65 2026-08-26 07:41 639233266521568229
35 ms 162.159.44.161
64 2026-08-26 07:41 639233266521568229
35 ms 172.64.35.161
63 2026-08-26 07:41 639233266521568229
35 ms 108.162.195.161
62 2026-08-26 07:23 639233256081047431
43 ms 172.64.35.161
61 2026-08-26 07:23 639233256081047431
43 ms 108.162.195.161
60 2026-08-26 07:23 639233256081047431
43 ms 162.159.44.161
59 2026-08-26 06:29 639233223620132921
32 ms 108.162.195.161
58 2026-08-26 06:29 639233223620132921
32 ms 162.159.44.161
57 2026-08-26 06:29 639233223620132921
32 ms 172.64.35.161
56 2026-08-26 06:12 639233213287814244
11 ms 108.162.195.161
55 2026-08-26 06:12 639233213287814244
11 ms 162.159.44.161
54 2026-08-26 06:12 639233213287814244
11 ms 172.64.35.161
53 2026-08-26 05:55 639233202925983161
48 ms 108.162.195.161
52 2026-08-26 05:55 639233202925983161
48 ms 162.159.44.161
51 2026-08-26 05:55 639233202925983161
48 ms 172.64.35.161
50 2026-08-26 05:38 639233192644780696
2028 ms 172.64.35.161
49 2026-08-26 05:38 639233192644780696
2028 ms 162.159.44.161
48 2026-08-26 05:38 639233192644780696
2028 ms 108.162.195.161
47 2026-08-26 05:20 639233182401183833
38 ms 108.162.195.161
46 2026-08-26 05:20 639233182401183833
38 ms 162.159.44.161
45 2026-08-26 05:20 639233182401183833
38 ms 172.64.35.161
44 2026-08-26 05:03 639233172074181051
12 ms 108.162.195.161
43 2026-08-26 05:03 639233172074181051
12 ms 162.159.44.161
42 2026-08-26 05:03 639233172074181051
12 ms 172.64.35.161
41 2026-08-26 04:46 639233161808421455
8 ms 108.162.195.161
40 2026-08-26 04:46 639233161808421455
8 ms 162.159.44.161
39 2026-08-26 04:46 639233161808421455
8 ms 172.64.35.161
38 2026-08-26 04:29 639233151357344052
35 ms 108.162.195.161
37 2026-08-26 04:29 639233151357344052
35 ms 162.159.44.161
36 2026-08-26 04:29 639233151357344052
35 ms 172.64.35.161
35 2026-08-26 04:12 639233141034116946
11 ms 108.162.195.161
34 2026-08-26 04:12 639233141034116946
11 ms 162.159.44.161
33 2026-08-26 04:12 639233141034116946
11 ms 172.64.35.161
32 2026-08-26 03:55 639233130828334142
19 ms 162.159.44.161
31 2026-08-26 03:55 639233130828334142
19 ms 108.162.195.161
30 2026-08-26 03:55 639233130828334142
19 ms 172.64.35.161
29 2026-08-26 03:37 639233120373450007
8 ms 108.162.195.161
28 2026-08-26 03:37 639233120373450007
8 ms 162.159.44.161
27 2026-08-26 03:37 639233120373450007
8 ms 172.64.35.161
26 2026-08-26 03:20 639233110066216193
4 ms 108.162.195.161
25 2026-08-26 03:20 639233110066216193
4 ms 162.159.44.161
24 2026-08-26 03:20 639233110066216193
4 ms 172.64.35.161
23 2026-08-26 02:27 639233078065410564
13 ms 108.162.195.161
22 2026-08-26 02:27 639233078065410564
13 ms 172.64.35.161
21 2026-08-26 02:27 639233078065410564
13 ms 162.159.44.161
20 2026-08-26 02:09 639233067787457832
5 ms 108.162.195.161
19 2026-08-26 02:09 639233067787457832
5 ms 162.159.44.161
18 2026-08-26 02:09 639233067787457832
5 ms 172.64.35.161
17 2026-08-26 01:52 639233057501801162
5 ms 108.162.195.161
16 2026-08-26 01:52 639233057501801162
5 ms 162.159.44.161
15 2026-08-26 01:52 639233057501801162
5 ms 172.64.35.161
14 2026-08-26 01:35 639233047089431703
33 ms 108.162.195.161
13 2026-08-26 01:35 639233047089431703
33 ms 162.159.44.161
12 2026-08-26 01:35 639233047089431703
33 ms 172.64.35.161
11 2026-08-26 01:18 639233036754790688
11 ms 108.162.195.161
10 2026-08-26 01:18 639233036754790688
11 ms 162.159.44.161
9 2026-08-26 01:18 639233036754790688
11 ms 172.64.35.161
8 2026-08-26 01:01 639233026412602472
-
7 2026-08-26 00:43 639233016064066127
23 ms 108.162.195.161
6 2026-08-26 00:43 639233016064066127
23 ms 162.159.44.161
5 2026-08-26 00:43 639233016064066127
23 ms 172.64.35.161
4 2026-08-26 00:26 639233005922655772
-
3 2026-08-26 00:09 639232995672256907
8 ms 108.162.195.161
2 2026-08-26 00:09 639232995672256907
8 ms 162.159.44.161
1 2026-08-26 00:09 639232995672256907
8 ms 172.64.35.161