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 2026-08-27. For this date, NameServerHistory found 211 DNS check records, 210 successful responses, 1 failed responses, and 308 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

211

Historical checks stored for this nameserver on selected date

Average Latency

308 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-27 23:14

All timestamps shown in UTC

Latest Resolved IP on Selected Date

162.159.44.161

Most recently resolved hosting IP on selected date

Successful Responses

210

Checks that returned a measurable response

Failed Responses

1

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 2026-08-27 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
211 2026-08-27 23:14 639234690580226618
11 ms 162.159.44.161
210 2026-08-27 23:14 639234690580226618
11 ms 172.64.35.161
209 2026-08-27 23:14 639234690580226618
11 ms 108.162.195.161
208 2026-08-27 22:57 639234680477852135
3 ms 108.162.195.161
207 2026-08-27 22:57 639234680477852135
3 ms 162.159.44.161
206 2026-08-27 22:57 639234680477852135
3 ms 172.64.35.161
205 2026-08-27 22:40 639234670282270693
40 ms 162.159.44.161
204 2026-08-27 22:40 639234670282270693
40 ms 108.162.195.161
203 2026-08-27 22:40 639234670282270693
40 ms 172.64.35.161
202 2026-08-27 22:23 639234660146106544
-
201 2026-08-27 22:06 639234649768231829
10 ms 108.162.195.161
200 2026-08-27 22:06 639234649768231829
10 ms 162.159.44.161
199 2026-08-27 22:06 639234649768231829
10 ms 172.64.35.161
198 2026-08-27 21:49 639234639589413826
3 ms 108.162.195.161
197 2026-08-27 21:49 639234639589413826
3 ms 162.159.44.161
196 2026-08-27 21:49 639234639589413826
3 ms 172.64.35.161
195 2026-08-27 21:32 639234629372993861
4 ms 108.162.195.161
194 2026-08-27 21:32 639234629372993861
4 ms 162.159.44.161
193 2026-08-27 21:32 639234629372993861
4 ms 172.64.35.161
192 2026-08-27 21:15 639234619223904344
11 ms 108.162.195.161
191 2026-08-27 21:15 639234619223904344
11 ms 162.159.44.161
190 2026-08-27 21:15 639234619223904344
11 ms 172.64.35.161
189 2026-08-27 20:58 639234608944811927
48 ms 108.162.195.161
188 2026-08-27 20:58 639234608944811927
48 ms 162.159.44.161
187 2026-08-27 20:58 639234608944811927
48 ms 172.64.35.161
186 2026-08-27 20:41 639234598661858910
7 ms 108.162.195.161
185 2026-08-27 20:41 639234598661858910
7 ms 162.159.44.161
184 2026-08-27 20:41 639234598661858910
7 ms 172.64.35.161
183 2026-08-27 20:24 639234588314533893
34 ms 108.162.195.161
182 2026-08-27 20:24 639234588314533893
34 ms 162.159.44.161
181 2026-08-27 20:24 639234588314533893
34 ms 172.64.35.161
180 2026-08-27 20:06 639234577878211878
14 ms 108.162.195.161
179 2026-08-27 20:06 639234577878211878
14 ms 162.159.44.161
178 2026-08-27 20:06 639234577878211878
14 ms 172.64.35.161
177 2026-08-27 19:12 639234545578367474
7 ms 108.162.195.161
176 2026-08-27 19:12 639234545578367474
7 ms 162.159.44.161
175 2026-08-27 19:12 639234545578367474
7 ms 172.64.35.161
174 2026-08-27 18:55 639234535255111795
21 ms 108.162.195.161
173 2026-08-27 18:55 639234535255111795
21 ms 162.159.44.161
172 2026-08-27 18:55 639234535255111795
21 ms 172.64.35.161
171 2026-08-27 18:38 639234525107594067
22 ms 108.162.195.161
170 2026-08-27 18:38 639234525107594067
22 ms 162.159.44.161
169 2026-08-27 18:38 639234525107594067
22 ms 172.64.35.161
168 2026-08-27 18:21 639234514890244566
55 ms 108.162.195.161
167 2026-08-27 18:21 639234514890244566
55 ms 162.159.44.161
166 2026-08-27 18:21 639234514890244566
55 ms 172.64.35.161
165 2026-08-27 18:04 639234504745477862
4 ms 108.162.195.161
164 2026-08-27 18:04 639234504745477862
4 ms 162.159.44.161
163 2026-08-27 18:04 639234504745477862
4 ms 172.64.35.161
162 2026-08-27 17:47 639234494449227290
44 ms 108.162.195.161
161 2026-08-27 17:47 639234494449227290
44 ms 162.159.44.161
160 2026-08-27 17:47 639234494449227290
44 ms 172.64.35.161
159 2026-08-27 17:30 639234484118025686
59 ms 108.162.195.161
158 2026-08-27 17:30 639234484118025686
59 ms 162.159.44.161
157 2026-08-27 17:30 639234484118025686
59 ms 172.64.35.161
156 2026-08-27 17:13 639234473946362077
11 ms 162.159.44.161
155 2026-08-27 17:13 639234473946362077
11 ms 172.64.35.161
154 2026-08-27 17:13 639234473946362077
11 ms 108.162.195.161
153 2026-08-27 16:56 639234463759124388
56 ms 172.64.35.161
152 2026-08-27 16:56 639234463759124388
56 ms 162.159.44.161
151 2026-08-27 16:56 639234463759124388
56 ms 108.162.195.161
150 2026-08-27 16:39 639234453500759178
31 ms 108.162.195.161
149 2026-08-27 16:39 639234453500759178
31 ms 162.159.44.161
148 2026-08-27 16:39 639234453500759178
31 ms 172.64.35.161
147 2026-08-27 16:21 639234442983541638
4 ms 108.162.195.161
146 2026-08-27 16:21 639234442983541638
4 ms 162.159.44.161
145 2026-08-27 16:21 639234442983541638
4 ms 172.64.35.161
144 2026-08-27 16:04 639234432404354562
29 ms 108.162.195.161
143 2026-08-27 16:04 639234432404354562
29 ms 162.159.44.161
142 2026-08-27 16:04 639234432404354562
29 ms 172.64.35.161
141 2026-08-27 15:09 639234399767719119
77 ms 108.162.195.161
140 2026-08-27 15:09 639234399767719119
77 ms 162.159.44.161
139 2026-08-27 15:09 639234399767719119
77 ms 172.64.35.161
138 2026-08-27 14:52 639234389460601485
2031 ms 108.162.195.161
137 2026-08-27 14:52 639234389460601485
2031 ms 172.64.35.161
136 2026-08-27 14:52 639234389460601485
2031 ms 162.159.44.161
135 2026-08-27 14:35 639234379227178707
6 ms 108.162.195.161
134 2026-08-27 14:35 639234379227178707
6 ms 162.159.44.161
133 2026-08-27 14:35 639234379227178707
6 ms 172.64.35.161
132 2026-08-27 14:18 639234369065315214
2021 ms 108.162.195.161
131 2026-08-27 14:18 639234369065315214
2021 ms 172.64.35.161
130 2026-08-27 14:18 639234369065315214
2021 ms 162.159.44.161
129 2026-08-27 14:01 639234358825501576
28 ms 162.159.44.161
128 2026-08-27 14:01 639234358825501576
28 ms 172.64.35.161
127 2026-08-27 14:01 639234358825501576
28 ms 108.162.195.161
126 2026-08-27 13:44 639234348572745268
45 ms 172.64.35.161
125 2026-08-27 13:44 639234348572745268
45 ms 108.162.195.161
124 2026-08-27 13:44 639234348572745268
45 ms 162.159.44.161
123 2026-08-27 13:27 639234338264503481
42 ms 172.64.35.161
122 2026-08-27 13:27 639234338264503481
42 ms 162.159.44.161
121 2026-08-27 13:27 639234338264503481
42 ms 108.162.195.161
120 2026-08-27 13:09 639234327818741376
22 ms 108.162.195.161
119 2026-08-27 13:09 639234327818741376
22 ms 162.159.44.161
118 2026-08-27 13:09 639234327818741376
22 ms 172.64.35.161
117 2026-08-27 12:52 639234317475724313
42 ms 108.162.195.161
116 2026-08-27 12:52 639234317475724313
42 ms 162.159.44.161
115 2026-08-27 12:52 639234317475724313
42 ms 172.64.35.161
114 2026-08-27 12:35 639234307007468133
20 ms 172.64.35.161
113 2026-08-27 12:35 639234307007468133
20 ms 108.162.195.161
112 2026-08-27 12:35 639234307007468133
20 ms 162.159.44.161
111 2026-08-27 12:17 639234296664302575
31 ms 172.64.35.161
110 2026-08-27 12:17 639234296664302575
31 ms 162.159.44.161
109 2026-08-27 12:17 639234296664302575
31 ms 108.162.195.161
108 2026-08-27 12:00 639234286253196126
8 ms 172.64.35.161
107 2026-08-27 12:00 639234286253196126
8 ms 108.162.195.161
106 2026-08-27 12:00 639234286253196126
8 ms 162.159.44.161
105 2026-08-27 11:06 639234253963286387
4 ms 108.162.195.161
104 2026-08-27 11:06 639234253963286387
4 ms 162.159.44.161
103 2026-08-27 11:06 639234253963286387
4 ms 172.64.35.161
102 2026-08-27 10:49 639234243654907465
5 ms 108.162.195.161
101 2026-08-27 10:49 639234243654907465
5 ms 162.159.44.161
100 2026-08-27 10:49 639234243654907465
5 ms 172.64.35.161
99 2026-08-27 10:32 639234233269654413
68 ms 108.162.195.161
98 2026-08-27 10:32 639234233269654413
68 ms 162.159.44.161
97 2026-08-27 10:32 639234233269654413
68 ms 172.64.35.161
96 2026-08-27 10:15 639234222943951923
11 ms 108.162.195.161
95 2026-08-27 10:15 639234222943951923
11 ms 162.159.44.161
94 2026-08-27 10:15 639234222943951923
11 ms 172.64.35.161
93 2026-08-27 09:57 639234212558002823
19 ms 108.162.195.161
92 2026-08-27 09:57 639234212558002823
19 ms 162.159.44.161
91 2026-08-27 09:57 639234212558002823
19 ms 172.64.35.161
90 2026-08-27 09:40 639234202117531850
10 ms 108.162.195.161
89 2026-08-27 09:40 639234202117531850
10 ms 162.159.44.161
88 2026-08-27 09:40 639234202117531850
10 ms 172.64.35.161
87 2026-08-27 09:22 639234191649612722
34 ms 108.162.195.161
86 2026-08-27 09:22 639234191649612722
34 ms 172.64.35.161
85 2026-08-27 09:22 639234191649612722
34 ms 162.159.44.161
84 2026-08-27 09:05 639234181105879568
14 ms 108.162.195.161
83 2026-08-27 09:05 639234181105879568
14 ms 162.159.44.161
82 2026-08-27 09:05 639234181105879568
14 ms 172.64.35.161
81 2026-08-27 08:48 639234170713214496
12 ms 172.64.35.161
80 2026-08-27 08:48 639234170713214496
12 ms 108.162.195.161
79 2026-08-27 08:48 639234170713214496
12 ms 162.159.44.161
78 2026-08-27 08:30 639234160341037652
11 ms 172.64.35.161
77 2026-08-27 08:30 639234160341037652
11 ms 108.162.195.161
76 2026-08-27 08:30 639234160341037652
11 ms 162.159.44.161
75 2026-08-27 08:13 639234149799404224
6 ms 108.162.195.161
74 2026-08-27 08:13 639234149799404224
6 ms 162.159.44.161
73 2026-08-27 08:13 639234149799404224
6 ms 172.64.35.161
72 2026-08-27 07:56 639234139553286469
24 ms 108.162.195.161
71 2026-08-27 07:56 639234139553286469
24 ms 162.159.44.161
70 2026-08-27 07:56 639234139553286469
24 ms 172.64.35.161
69 2026-08-27 07:02 639234107183588293
23 ms 108.162.195.161
68 2026-08-27 07:02 639234107183588293
23 ms 162.159.44.161
67 2026-08-27 07:02 639234107183588293
23 ms 172.64.35.161
66 2026-08-27 06:45 639234096905435724
7 ms 172.64.35.161
65 2026-08-27 06:45 639234096905435724
7 ms 108.162.195.161
64 2026-08-27 06:45 639234096905435724
7 ms 162.159.44.161
63 2026-08-27 06:27 639234086579410775
10 ms 108.162.195.161
62 2026-08-27 06:27 639234086579410775
10 ms 162.159.44.161
61 2026-08-27 06:27 639234086579410775
10 ms 172.64.35.161
60 2026-08-27 06:10 639234076291157956
4008 ms 108.162.195.161
59 2026-08-27 06:10 639234076291157956
4008 ms 162.159.44.161
58 2026-08-27 06:10 639234076291157956
4008 ms 172.64.35.161
57 2026-08-27 05:53 639234065981939454
2039 ms 162.159.44.161
56 2026-08-27 05:53 639234065981939454
2039 ms 172.64.35.161
55 2026-08-27 05:53 639234065981939454
2039 ms 108.162.195.161
54 2026-08-27 05:36 639234055548642997
2026 ms 108.162.195.161
53 2026-08-27 05:36 639234055548642997
2026 ms 172.64.35.161
52 2026-08-27 05:36 639234055548642997
2026 ms 162.159.44.161
51 2026-08-27 05:19 639234045267979603
5 ms 108.162.195.161
50 2026-08-27 05:19 639234045267979603
5 ms 162.159.44.161
49 2026-08-27 05:19 639234045267979603
5 ms 172.64.35.161
48 2026-08-27 05:02 639234034999717463
2106 ms 162.159.44.161
47 2026-08-27 05:02 639234034999717463
2106 ms 108.162.195.161
46 2026-08-27 05:02 639234034999717463
2106 ms 172.64.35.161
45 2026-08-27 04:44 639234024739225358
3 ms 108.162.195.161
44 2026-08-27 04:44 639234024739225358
3 ms 162.159.44.161
43 2026-08-27 04:44 639234024739225358
3 ms 172.64.35.161
42 2026-08-27 04:27 639234014311170162
30 ms 108.162.195.161
41 2026-08-27 04:27 639234014311170162
30 ms 162.159.44.161
40 2026-08-27 04:27 639234014311170162
30 ms 172.64.35.161
39 2026-08-27 04:09 639234003806017640
2031 ms 162.159.44.161
38 2026-08-27 04:09 639234003806017640
2031 ms 172.64.35.161
37 2026-08-27 04:09 639234003806017640
2031 ms 108.162.195.161
36 2026-08-27 03:52 639233993356203030
3 ms 108.162.195.161
35 2026-08-27 03:52 639233993356203030
3 ms 162.159.44.161
34 2026-08-27 03:52 639233993356203030
3 ms 172.64.35.161
33 2026-08-27 02:59 639233961301716608
4 ms 108.162.195.161
32 2026-08-27 02:59 639233961301716608
4 ms 162.159.44.161
31 2026-08-27 02:59 639233961301716608
4 ms 172.64.35.161
30 2026-08-27 02:41 639233950834200647
3 ms 108.162.195.161
29 2026-08-27 02:41 639233950834200647
3 ms 162.159.44.161
28 2026-08-27 02:41 639233950834200647
3 ms 172.64.35.161
27 2026-08-27 02:24 639233940431849026
8 ms 162.159.44.161
26 2026-08-27 02:24 639233940431849026
8 ms 108.162.195.161
25 2026-08-27 02:24 639233940431849026
8 ms 172.64.35.161
24 2026-08-27 02:07 639233930110596398
3 ms 108.162.195.161
23 2026-08-27 02:07 639233930110596398
3 ms 162.159.44.161
22 2026-08-27 02:07 639233930110596398
3 ms 172.64.35.161
21 2026-08-27 01:49 639233919705434540
19 ms 108.162.195.161
20 2026-08-27 01:49 639233919705434540
19 ms 162.159.44.161
19 2026-08-27 01:49 639233919705434540
19 ms 172.64.35.161
18 2026-08-27 01:32 639233909452807845
13 ms 162.159.44.161
17 2026-08-27 01:32 639233909452807845
13 ms 108.162.195.161
16 2026-08-27 01:32 639233909452807845
13 ms 172.64.35.161
15 2026-08-27 01:15 639233899096420820
2013 ms 172.64.35.161
14 2026-08-27 01:15 639233899096420820
2013 ms 162.159.44.161
13 2026-08-27 01:15 639233899096420820
2013 ms 108.162.195.161
12 2026-08-27 00:58 639233888707824939
2014 ms 172.64.35.161
11 2026-08-27 00:58 639233888707824939
2014 ms 162.159.44.161
10 2026-08-27 00:58 639233888707824939
2014 ms 108.162.195.161
9 2026-08-27 00:41 639233878461203802
24 ms 108.162.195.161
8 2026-08-27 00:41 639233878461203802
24 ms 162.159.44.161
7 2026-08-27 00:41 639233878461203802
24 ms 172.64.35.161
6 2026-08-27 00:23 639233868060868209
13 ms 108.162.195.161
5 2026-08-27 00:23 639233868060868209
13 ms 162.159.44.161
4 2026-08-27 00:23 639233868060868209
13 ms 172.64.35.161
3 2026-08-27 00:06 639233857450922991
15 ms 162.159.44.161
2 2026-08-27 00:06 639233857450922991
15 ms 108.162.195.161
1 2026-08-27 00:06 639233857450922991
15 ms 172.64.35.161