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 2026-08-25. For this date, NameServerHistory found 207 DNS check records, 207 successful responses, 0 failed responses, and 223 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

207

Historical checks stored for this nameserver on selected date

Average Latency

223 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-25 23:52

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

207

Checks that returned a measurable response

Failed Responses

0

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 sullivan.ns.cloudflare.com

Showing DNS history for 2026-08-25 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
207 2026-08-25 23:52 639232985300872416
7 ms 108.162.195.161
206 2026-08-25 23:52 639232985300872416
7 ms 172.64.35.161
205 2026-08-25 23:52 639232985300872416
7 ms 162.159.44.161
204 2026-08-25 23:35 639232974980190573
4 ms 108.162.195.161
203 2026-08-25 23:35 639232974980190573
4 ms 162.159.44.161
202 2026-08-25 23:35 639232974980190573
4 ms 172.64.35.161
201 2026-08-25 23:18 639232964577050707
3 ms 108.162.195.161
200 2026-08-25 23:18 639232964577050707
3 ms 162.159.44.161
199 2026-08-25 23:18 639232964577050707
3 ms 172.64.35.161
198 2026-08-25 22:23 639232932163142799
4 ms 108.162.195.161
197 2026-08-25 22:23 639232932163142799
4 ms 162.159.44.161
196 2026-08-25 22:23 639232932163142799
4 ms 172.64.35.161
195 2026-08-25 22:06 639232921673215474
3 ms 108.162.195.161
194 2026-08-25 22:06 639232921673215474
3 ms 162.159.44.161
193 2026-08-25 22:06 639232921673215474
3 ms 172.64.35.161
192 2026-08-25 21:49 639232911234504639
8 ms 108.162.195.161
191 2026-08-25 21:49 639232911234504639
8 ms 162.159.44.161
190 2026-08-25 21:49 639232911234504639
8 ms 172.64.35.161
189 2026-08-25 21:31 639232900747078453
33 ms 172.64.35.161
188 2026-08-25 21:31 639232900747078453
33 ms 162.159.44.161
187 2026-08-25 21:31 639232900747078453
33 ms 108.162.195.161
186 2026-08-25 21:14 639232890389222534
25 ms 172.64.35.161
185 2026-08-25 21:14 639232890389222534
25 ms 162.159.44.161
184 2026-08-25 21:14 639232890389222534
25 ms 108.162.195.161
183 2026-08-25 20:57 639232880143390843
5 ms 108.162.195.161
182 2026-08-25 20:57 639232880143390843
5 ms 162.159.44.161
181 2026-08-25 20:57 639232880143390843
5 ms 172.64.35.161
180 2026-08-25 20:39 639232869755024069
24 ms 108.162.195.161
179 2026-08-25 20:39 639232869755024069
24 ms 162.159.44.161
178 2026-08-25 20:39 639232869755024069
24 ms 172.64.35.161
177 2026-08-25 20:22 639232859355940346
55 ms 108.162.195.161
176 2026-08-25 20:22 639232859355940346
55 ms 162.159.44.161
175 2026-08-25 20:22 639232859355940346
55 ms 172.64.35.161
174 2026-08-25 20:05 639232848992244953
5 ms 108.162.195.161
173 2026-08-25 20:05 639232848992244953
5 ms 162.159.44.161
172 2026-08-25 20:05 639232848992244953
5 ms 172.64.35.161
171 2026-08-25 19:47 639232838596478500
8 ms 162.159.44.161
170 2026-08-25 19:47 639232838596478500
8 ms 108.162.195.161
169 2026-08-25 19:47 639232838596478500
8 ms 172.64.35.161
168 2026-08-25 19:30 639232828175327683
13 ms 108.162.195.161
167 2026-08-25 19:30 639232828175327683
13 ms 162.159.44.161
166 2026-08-25 19:30 639232828175327683
13 ms 172.64.35.161
165 2026-08-25 19:13 639232817798330473
2046 ms 172.64.35.161
164 2026-08-25 19:13 639232817798330473
2046 ms 162.159.44.161
163 2026-08-25 19:13 639232817798330473
2046 ms 108.162.195.161
162 2026-08-25 18:19 639232785462407552
4 ms 108.162.195.161
161 2026-08-25 18:19 639232785462407552
4 ms 162.159.44.161
160 2026-08-25 18:19 639232785462407552
4 ms 172.64.35.161
159 2026-08-25 18:02 639232775177487032
64 ms 108.162.195.161
158 2026-08-25 18:02 639232775177487032
64 ms 162.159.44.161
157 2026-08-25 18:02 639232775177487032
64 ms 172.64.35.161
156 2026-08-25 17:45 639232764991087115
36 ms 108.162.195.161
155 2026-08-25 17:45 639232764991087115
36 ms 162.159.44.161
154 2026-08-25 17:45 639232764991087115
36 ms 172.64.35.161
153 2026-08-25 17:28 639232754842971478
2015 ms 172.64.35.161
152 2026-08-25 17:28 639232754842971478
2015 ms 162.159.44.161
151 2026-08-25 17:28 639232754842971478
2015 ms 108.162.195.161
150 2026-08-25 17:11 639232744455159107
25 ms 108.162.195.161
149 2026-08-25 17:11 639232744455159107
25 ms 162.159.44.161
148 2026-08-25 17:11 639232744455159107
25 ms 172.64.35.161
147 2026-08-25 16:53 639232734145178231
31 ms 108.162.195.161
146 2026-08-25 16:53 639232734145178231
31 ms 162.159.44.161
145 2026-08-25 16:53 639232734145178231
31 ms 172.64.35.161
144 2026-08-25 16:36 639232723827874402
15 ms 108.162.195.161
143 2026-08-25 16:36 639232723827874402
15 ms 162.159.44.161
142 2026-08-25 16:36 639232723827874402
15 ms 172.64.35.161
141 2026-08-25 16:19 639232713533011892
7 ms 108.162.195.161
140 2026-08-25 16:19 639232713533011892
7 ms 162.159.44.161
139 2026-08-25 16:19 639232713533011892
7 ms 172.64.35.161
138 2026-08-25 16:02 639232703065318207
5 ms 108.162.195.161
137 2026-08-25 16:02 639232703065318207
5 ms 162.159.44.161
136 2026-08-25 16:02 639232703065318207
5 ms 172.64.35.161
135 2026-08-25 15:44 639232692629559470
46 ms 108.162.195.161
134 2026-08-25 15:44 639232692629559470
46 ms 172.64.35.161
133 2026-08-25 15:44 639232692629559470
46 ms 162.159.44.161
132 2026-08-25 15:27 639232682238836475
6 ms 108.162.195.161
131 2026-08-25 15:27 639232682238836475
6 ms 162.159.44.161
130 2026-08-25 15:27 639232682238836475
6 ms 172.64.35.161
129 2026-08-25 15:09 639232671787004306
12 ms 108.162.195.161
128 2026-08-25 15:09 639232671787004306
12 ms 162.159.44.161
127 2026-08-25 15:09 639232671787004306
12 ms 172.64.35.161
126 2026-08-25 14:15 639232638994329666
24 ms 108.162.195.161
125 2026-08-25 14:15 639232638994329666
24 ms 162.159.44.161
124 2026-08-25 14:15 639232638994329666
24 ms 172.64.35.161
123 2026-08-25 13:58 639232628614783237
21 ms 108.162.195.161
122 2026-08-25 13:58 639232628614783237
21 ms 162.159.44.161
121 2026-08-25 13:58 639232628614783237
21 ms 172.64.35.161
120 2026-08-25 13:40 639232618360728578
19 ms 108.162.195.161
119 2026-08-25 13:40 639232618360728578
19 ms 162.159.44.161
118 2026-08-25 13:40 639232618360728578
19 ms 172.64.35.161
117 2026-08-25 13:23 639232608016476376
6 ms 108.162.195.161
116 2026-08-25 13:23 639232608016476376
6 ms 162.159.44.161
115 2026-08-25 13:23 639232608016476376
6 ms 172.64.35.161
114 2026-08-25 13:06 639232597643611557
2013 ms 162.159.44.161
113 2026-08-25 13:06 639232597643611557
2013 ms 108.162.195.161
112 2026-08-25 13:06 639232597643611557
2013 ms 172.64.35.161
111 2026-08-25 12:49 639232587225721862
42 ms 172.64.35.161
110 2026-08-25 12:49 639232587225721862
42 ms 162.159.44.161
109 2026-08-25 12:49 639232587225721862
42 ms 108.162.195.161
108 2026-08-25 12:31 639232576780683689
5 ms 108.162.195.161
107 2026-08-25 12:31 639232576780683689
5 ms 162.159.44.161
106 2026-08-25 12:31 639232576780683689
5 ms 172.64.35.161
105 2026-08-25 12:14 639232566381512620
8 ms 108.162.195.161
104 2026-08-25 12:14 639232566381512620
8 ms 162.159.44.161
103 2026-08-25 12:14 639232566381512620
8 ms 172.64.35.161
102 2026-08-25 11:57 639232556111768563
21 ms 108.162.195.161
101 2026-08-25 11:57 639232556111768563
21 ms 162.159.44.161
100 2026-08-25 11:57 639232556111768563
21 ms 172.64.35.161
99 2026-08-25 11:40 639232545839529039
35 ms 162.159.44.161
98 2026-08-25 11:40 639232545839529039
35 ms 172.64.35.161
97 2026-08-25 11:40 639232545839529039
35 ms 108.162.195.161
96 2026-08-25 11:22 639232535349285207
2020 ms 172.64.35.161
95 2026-08-25 11:22 639232535349285207
2020 ms 162.159.44.161
94 2026-08-25 11:22 639232535349285207
2020 ms 108.162.195.161
93 2026-08-25 11:05 639232524938080723
8 ms 108.162.195.161
92 2026-08-25 11:05 639232524938080723
8 ms 162.159.44.161
91 2026-08-25 11:05 639232524938080723
8 ms 172.64.35.161
90 2026-08-25 10:11 639232492740373468
3 ms 108.162.195.161
89 2026-08-25 10:11 639232492740373468
3 ms 162.159.44.161
88 2026-08-25 10:11 639232492740373468
3 ms 172.64.35.161
87 2026-08-25 09:54 639232482235303141
16 ms 108.162.195.161
86 2026-08-25 09:54 639232482235303141
16 ms 162.159.44.161
85 2026-08-25 09:54 639232482235303141
16 ms 172.64.35.161
84 2026-08-25 09:36 639232471861770303
22 ms 108.162.195.161
83 2026-08-25 09:36 639232471861770303
22 ms 162.159.44.161
82 2026-08-25 09:36 639232471861770303
22 ms 172.64.35.161
81 2026-08-25 09:19 639232461630217327
34 ms 108.162.195.161
80 2026-08-25 09:19 639232461630217327
34 ms 162.159.44.161
79 2026-08-25 09:19 639232461630217327
34 ms 172.64.35.161
78 2026-08-25 09:02 639232451282965990
9 ms 172.64.35.161
77 2026-08-25 09:02 639232451282965990
9 ms 108.162.195.161
76 2026-08-25 09:02 639232451282965990
9 ms 162.159.44.161
75 2026-08-25 08:44 639232440814614938
19 ms 108.162.195.161
74 2026-08-25 08:44 639232440814614938
19 ms 162.159.44.161
73 2026-08-25 08:44 639232440814614938
19 ms 172.64.35.161
72 2026-08-25 08:27 639232430410720425
4 ms 108.162.195.161
71 2026-08-25 08:27 639232430410720425
4 ms 162.159.44.161
70 2026-08-25 08:27 639232430410720425
4 ms 172.64.35.161
69 2026-08-25 08:10 639232420003096185
80 ms 172.64.35.161
68 2026-08-25 08:10 639232420003096185
80 ms 162.159.44.161
67 2026-08-25 08:10 639232420003096185
80 ms 108.162.195.161
66 2026-08-25 07:52 639232409467287444
7 ms 108.162.195.161
65 2026-08-25 07:52 639232409467287444
7 ms 162.159.44.161
64 2026-08-25 07:52 639232409467287444
7 ms 172.64.35.161
63 2026-08-25 07:35 639232399077195997
3 ms 108.162.195.161
62 2026-08-25 07:35 639232399077195997
3 ms 162.159.44.161
61 2026-08-25 07:35 639232399077195997
3 ms 172.64.35.161
60 2026-08-25 07:18 639232388731528337
7 ms 108.162.195.161
59 2026-08-25 07:18 639232388731528337
7 ms 162.159.44.161
58 2026-08-25 07:18 639232388731528337
7 ms 172.64.35.161
57 2026-08-25 07:00 639232378288598612
37 ms 172.64.35.161
56 2026-08-25 07:00 639232378288598612
37 ms 162.159.44.161
55 2026-08-25 07:00 639232378288598612
37 ms 108.162.195.161
54 2026-08-25 06:07 639232346196373643
7 ms 108.162.195.161
53 2026-08-25 06:07 639232346196373643
7 ms 162.159.44.161
52 2026-08-25 06:07 639232346196373643
7 ms 172.64.35.161
51 2026-08-25 05:50 639232336112370741
22 ms 108.162.195.161
50 2026-08-25 05:50 639232336112370741
22 ms 172.64.35.161
49 2026-08-25 05:50 639232336112370741
22 ms 162.159.44.161
48 2026-08-25 05:33 639232326146508970
11 ms 108.162.195.161
47 2026-08-25 05:33 639232326146508970
11 ms 162.159.44.161
46 2026-08-25 05:33 639232326146508970
11 ms 172.64.35.161
45 2026-08-25 05:17 639232316189381720
24 ms 162.159.44.161
44 2026-08-25 05:17 639232316189381720
24 ms 172.64.35.161
43 2026-08-25 05:17 639232316189381720
24 ms 108.162.195.161
42 2026-08-25 05:00 639232306217998913
2033 ms 108.162.195.161
41 2026-08-25 05:00 639232306217998913
2033 ms 172.64.35.161
40 2026-08-25 05:00 639232306217998913
2033 ms 162.159.44.161
39 2026-08-25 04:44 639232296255744174
2048 ms 162.159.44.161
38 2026-08-25 04:44 639232296255744174
2048 ms 108.162.195.161
37 2026-08-25 04:44 639232296255744174
2048 ms 172.64.35.161
36 2026-08-25 04:27 639232286095760789
32 ms 108.162.195.161
35 2026-08-25 04:27 639232286095760789
32 ms 162.159.44.161
34 2026-08-25 04:27 639232286095760789
32 ms 172.64.35.161
33 2026-08-25 04:10 639232276086186273
38 ms 108.162.195.161
32 2026-08-25 04:10 639232276086186273
38 ms 162.159.44.161
31 2026-08-25 04:10 639232276086186273
38 ms 172.64.35.161
30 2026-08-25 03:53 639232265900986425
39 ms 162.159.44.161
29 2026-08-25 03:53 639232265900986425
39 ms 108.162.195.161
28 2026-08-25 03:53 639232265900986425
39 ms 172.64.35.161
27 2026-08-25 03:36 639232255723518075
6 ms 108.162.195.161
26 2026-08-25 03:36 639232255723518075
6 ms 162.159.44.161
25 2026-08-25 03:36 639232255723518075
6 ms 172.64.35.161
24 2026-08-25 03:19 639232245484452890
15 ms 108.162.195.161
23 2026-08-25 03:19 639232245484452890
15 ms 172.64.35.161
22 2026-08-25 03:19 639232245484452890
15 ms 162.159.44.161
21 2026-08-25 03:02 639232235157175331
10 ms 108.162.195.161
20 2026-08-25 03:02 639232235157175331
10 ms 162.159.44.161
19 2026-08-25 03:02 639232235157175331
10 ms 172.64.35.161
18 2026-08-25 02:08 639232203197189095
10 ms 108.162.195.161
17 2026-08-25 02:08 639232203197189095
10 ms 162.159.44.161
16 2026-08-25 02:08 639232203197189095
10 ms 172.64.35.161
15 2026-08-25 01:51 639232192844564298
5 ms 108.162.195.161
14 2026-08-25 01:51 639232192844564298
5 ms 162.159.44.161
13 2026-08-25 01:51 639232192844564298
5 ms 172.64.35.161
12 2026-08-25 01:34 639232182496008942
2036 ms 162.159.44.161
11 2026-08-25 01:34 639232182496008942
2036 ms 108.162.195.161
10 2026-08-25 01:34 639232182496008942
2036 ms 172.64.35.161
9 2026-08-25 01:17 639232172197053132
29 ms 108.162.195.161
8 2026-08-25 01:17 639232172197053132
29 ms 162.159.44.161
7 2026-08-25 01:17 639232172197053132
29 ms 172.64.35.161
6 2026-08-25 00:24 639232140250307418
28 ms 172.64.35.161
5 2026-08-25 00:24 639232140250307418
28 ms 162.159.44.161
4 2026-08-25 00:24 639232140250307418
28 ms 108.162.195.161
3 2026-08-25 00:06 639232129927860324
56 ms 108.162.195.161
2 2026-08-25 00:06 639232129927860324
56 ms 172.64.35.161
1 2026-08-25 00:06 639232129927860324
56 ms 162.159.44.161