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 2026-08-28. For this date, NameServerHistory found 168 DNS check records, 168 successful responses, 0 failed responses, and 270 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

168

Historical checks stored for this nameserver on selected date

Average Latency

270 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-28 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

168

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 2026-08-28 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
168 2026-08-28 23:48 639235574865467349
4 ms 108.162.195.161
167 2026-08-28 23:48 639235574865467349
4 ms 162.159.44.161
166 2026-08-28 23:48 639235574865467349
4 ms 172.64.35.161
165 2026-08-28 23:31 639235564640220198
8 ms 172.64.35.161
164 2026-08-28 23:31 639235564640220198
8 ms 108.162.195.161
163 2026-08-28 23:31 639235564640220198
8 ms 162.159.44.161
162 2026-08-28 23:14 639235554328938529
20 ms 108.162.195.161
161 2026-08-28 23:14 639235554328938529
20 ms 172.64.35.161
160 2026-08-28 23:14 639235554328938529
20 ms 162.159.44.161
159 2026-08-28 22:56 639235543879452837
20 ms 108.162.195.161
158 2026-08-28 22:56 639235543879452837
20 ms 162.159.44.161
157 2026-08-28 22:56 639235543879452837
20 ms 172.64.35.161
156 2026-08-28 22:03 639235511923394567
2016 ms 172.64.35.161
155 2026-08-28 22:03 639235511923394567
2016 ms 108.162.195.161
154 2026-08-28 22:03 639235511923394567
2016 ms 162.159.44.161
153 2026-08-28 21:46 639235501571282412
26 ms 108.162.195.161
152 2026-08-28 21:46 639235501571282412
26 ms 172.64.35.161
151 2026-08-28 21:46 639235501571282412
26 ms 162.159.44.161
150 2026-08-28 21:28 639235491147763512
30 ms 108.162.195.161
149 2026-08-28 21:28 639235491147763512
30 ms 172.64.35.161
148 2026-08-28 21:28 639235491147763512
30 ms 162.159.44.161
147 2026-08-28 21:11 639235480607057252
5 ms 108.162.195.161
146 2026-08-28 21:11 639235480607057252
5 ms 162.159.44.161
145 2026-08-28 21:11 639235480607057252
5 ms 172.64.35.161
144 2026-08-28 20:17 639235448504869535
43 ms 162.159.44.161
143 2026-08-28 20:17 639235448504869535
43 ms 108.162.195.161
142 2026-08-28 20:17 639235448504869535
43 ms 172.64.35.161
141 2026-08-28 20:00 639235438205961423
7 ms 108.162.195.161
140 2026-08-28 20:00 639235438205961423
7 ms 162.159.44.161
139 2026-08-28 20:00 639235438205961423
7 ms 172.64.35.161
138 2026-08-28 19:43 639235427771603643
7 ms 108.162.195.161
137 2026-08-28 19:43 639235427771603643
7 ms 172.64.35.161
136 2026-08-28 19:43 639235427771603643
7 ms 162.159.44.161
135 2026-08-28 19:25 639235417327437217
52 ms 108.162.195.161
134 2026-08-28 19:25 639235417327437217
52 ms 172.64.35.161
133 2026-08-28 19:25 639235417327437217
52 ms 162.159.44.161
132 2026-08-28 18:32 639235385468729647
25 ms 108.162.195.161
131 2026-08-28 18:32 639235385468729647
25 ms 162.159.44.161
130 2026-08-28 18:32 639235385468729647
25 ms 172.64.35.161
129 2026-08-28 18:15 639235375227508188
46 ms 108.162.195.161
128 2026-08-28 18:15 639235375227508188
46 ms 162.159.44.161
127 2026-08-28 18:15 639235375227508188
46 ms 172.64.35.161
126 2026-08-28 17:58 639235364947407812
4 ms 108.162.195.161
125 2026-08-28 17:58 639235364947407812
4 ms 162.159.44.161
124 2026-08-28 17:58 639235364947407812
4 ms 172.64.35.161
123 2026-08-28 17:40 639235354434017190
41 ms 108.162.195.161
122 2026-08-28 17:40 639235354434017190
41 ms 162.159.44.161
121 2026-08-28 17:40 639235354434017190
41 ms 172.64.35.161
120 2026-08-28 16:47 639235322621629103
22 ms 172.64.35.161
119 2026-08-28 16:47 639235322621629103
22 ms 108.162.195.161
118 2026-08-28 16:47 639235322621629103
22 ms 162.159.44.161
117 2026-08-28 16:30 639235312230592801
9 ms 108.162.195.161
116 2026-08-28 16:30 639235312230592801
9 ms 162.159.44.161
115 2026-08-28 16:30 639235312230592801
9 ms 172.64.35.161
114 2026-08-28 16:13 639235301738139314
2078 ms 172.64.35.161
113 2026-08-28 16:13 639235301738139314
2078 ms 162.159.44.161
112 2026-08-28 16:13 639235301738139314
2078 ms 108.162.195.161
111 2026-08-28 15:55 639235291168160936
15 ms 108.162.195.161
110 2026-08-28 15:55 639235291168160936
15 ms 172.64.35.161
109 2026-08-28 15:55 639235291168160936
15 ms 162.159.44.161
108 2026-08-28 15:01 639235258803654519
8 ms 108.162.195.161
107 2026-08-28 15:01 639235258803654519
8 ms 162.159.44.161
106 2026-08-28 15:01 639235258803654519
8 ms 172.64.35.161
105 2026-08-28 14:44 639235248596087996
4 ms 108.162.195.161
104 2026-08-28 14:44 639235248596087996
4 ms 162.159.44.161
103 2026-08-28 14:44 639235248596087996
4 ms 172.64.35.161
102 2026-08-28 14:27 639235238225955920
29 ms 108.162.195.161
101 2026-08-28 14:27 639235238225955920
29 ms 172.64.35.161
100 2026-08-28 14:27 639235238225955920
29 ms 162.159.44.161
99 2026-08-28 14:09 639235227727862105
7 ms 172.64.35.161
98 2026-08-28 14:09 639235227727862105
7 ms 162.159.44.161
97 2026-08-28 14:09 639235227727862105
7 ms 108.162.195.161
96 2026-08-28 13:15 639235195230848570
3 ms 108.162.195.161
95 2026-08-28 13:15 639235195230848570
3 ms 162.159.44.161
94 2026-08-28 13:15 639235195230848570
3 ms 172.64.35.161
93 2026-08-28 12:58 639235184840503274
4 ms 108.162.195.161
92 2026-08-28 12:58 639235184840503274
4 ms 162.159.44.161
91 2026-08-28 12:58 639235184840503274
4 ms 172.64.35.161
90 2026-08-28 12:40 639235174453894956
2009 ms 108.162.195.161
89 2026-08-28 12:40 639235174453894956
2009 ms 172.64.35.161
88 2026-08-28 12:40 639235174453894956
2009 ms 162.159.44.161
87 2026-08-28 12:23 639235163898672622
22 ms 172.64.35.161
86 2026-08-28 12:23 639235163898672622
22 ms 108.162.195.161
85 2026-08-28 12:23 639235163898672622
22 ms 162.159.44.161
84 2026-08-28 11:30 639235132147470568
8 ms 108.162.195.161
83 2026-08-28 11:30 639235132147470568
8 ms 162.159.44.161
82 2026-08-28 11:30 639235132147470568
8 ms 172.64.35.161
81 2026-08-28 11:13 639235121907744088
36 ms 162.159.44.161
80 2026-08-28 11:13 639235121907744088
36 ms 172.64.35.161
79 2026-08-28 11:13 639235121907744088
36 ms 108.162.195.161
78 2026-08-28 10:56 639235111428014262
29 ms 108.162.195.161
77 2026-08-28 10:56 639235111428014262
29 ms 162.159.44.161
76 2026-08-28 10:56 639235111428014262
29 ms 172.64.35.161
75 2026-08-28 10:38 639235100921813626
14 ms 108.162.195.161
74 2026-08-28 10:38 639235100921813626
14 ms 172.64.35.161
73 2026-08-28 10:38 639235100921813626
14 ms 162.159.44.161
72 2026-08-28 09:44 639235068670703481
21 ms 108.162.195.161
71 2026-08-28 09:44 639235068670703481
21 ms 162.159.44.161
70 2026-08-28 09:44 639235068670703481
21 ms 172.64.35.161
69 2026-08-28 09:27 639235058337459445
12 ms 108.162.195.161
68 2026-08-28 09:27 639235058337459445
12 ms 162.159.44.161
67 2026-08-28 09:27 639235058337459445
12 ms 172.64.35.161
66 2026-08-28 09:09 639235047825109146
18 ms 108.162.195.161
65 2026-08-28 09:09 639235047825109146
18 ms 172.64.35.161
64 2026-08-28 09:09 639235047825109146
18 ms 162.159.44.161
63 2026-08-28 08:52 639235037383229033
45 ms 108.162.195.161
62 2026-08-28 08:52 639235037383229033
45 ms 162.159.44.161
61 2026-08-28 08:52 639235037383229033
45 ms 172.64.35.161
60 2026-08-28 07:59 639235005619242711
20 ms 162.159.44.161
59 2026-08-28 07:59 639235005619242711
20 ms 172.64.35.161
58 2026-08-28 07:59 639235005619242711
20 ms 108.162.195.161
57 2026-08-28 07:42 639234995310346584
12 ms 162.159.44.161
56 2026-08-28 07:42 639234995310346584
12 ms 172.64.35.161
55 2026-08-28 07:42 639234995310346584
12 ms 108.162.195.161
54 2026-08-28 07:25 639234984946548933
2015 ms 108.162.195.161
53 2026-08-28 07:25 639234984946548933
2015 ms 162.159.44.161
52 2026-08-28 07:25 639234984946548933
2015 ms 172.64.35.161
51 2026-08-28 07:07 639234974608077290
38 ms 108.162.195.161
50 2026-08-28 07:07 639234974608077290
38 ms 162.159.44.161
49 2026-08-28 07:07 639234974608077290
38 ms 172.64.35.161
48 2026-08-28 06:14 639234942529845595
34 ms 108.162.195.161
47 2026-08-28 06:14 639234942529845595
34 ms 172.64.35.161
46 2026-08-28 06:14 639234942529845595
34 ms 162.159.44.161
45 2026-08-28 05:57 639234932259126627
22 ms 162.159.44.161
44 2026-08-28 05:57 639234932259126627
22 ms 172.64.35.161
43 2026-08-28 05:57 639234932259126627
22 ms 108.162.195.161
42 2026-08-28 05:40 639234921916735988
2011 ms 162.159.44.161
41 2026-08-28 05:40 639234921916735988
2011 ms 172.64.35.161
40 2026-08-28 05:40 639234921916735988
2011 ms 108.162.195.161
39 2026-08-28 05:22 639234911470038027
11 ms 108.162.195.161
38 2026-08-28 05:22 639234911470038027
11 ms 162.159.44.161
37 2026-08-28 05:22 639234911470038027
11 ms 172.64.35.161
36 2026-08-28 04:29 639234879588411654
20 ms 108.162.195.161
35 2026-08-28 04:29 639234879588411654
20 ms 162.159.44.161
34 2026-08-28 04:29 639234879588411654
20 ms 172.64.35.161
33 2026-08-28 04:12 639234869341589104
34 ms 162.159.44.161
32 2026-08-28 04:12 639234869341589104
34 ms 172.64.35.161
31 2026-08-28 04:12 639234869341589104
34 ms 108.162.195.161
30 2026-08-28 03:55 639234859012216675
2014 ms 172.64.35.161
29 2026-08-28 03:55 639234859012216675
2014 ms 162.159.44.161
28 2026-08-28 03:55 639234859012216675
2014 ms 108.162.195.161
27 2026-08-28 03:38 639234848695364934
5 ms 108.162.195.161
26 2026-08-28 03:38 639234848695364934
5 ms 162.159.44.161
25 2026-08-28 03:38 639234848695364934
5 ms 172.64.35.161
24 2026-08-28 02:45 639234816952458162
25 ms 108.162.195.161
23 2026-08-28 02:45 639234816952458162
25 ms 172.64.35.161
22 2026-08-28 02:45 639234816952458162
25 ms 162.159.44.161
21 2026-08-28 02:28 639234806773081598
12 ms 108.162.195.161
20 2026-08-28 02:28 639234806773081598
12 ms 162.159.44.161
19 2026-08-28 02:28 639234806773081598
12 ms 172.64.35.161
18 2026-08-28 02:10 639234796382955255
18 ms 108.162.195.161
17 2026-08-28 02:10 639234796382955255
18 ms 162.159.44.161
16 2026-08-28 02:10 639234796382955255
18 ms 172.64.35.161
15 2026-08-28 01:53 639234786015782563
2031 ms 172.64.35.161
14 2026-08-28 01:53 639234786015782563
2031 ms 108.162.195.161
13 2026-08-28 01:53 639234786015782563
2031 ms 162.159.44.161
12 2026-08-28 00:59 639234753811917646
20 ms 108.162.195.161
11 2026-08-28 00:59 639234753811917646
20 ms 162.159.44.161
10 2026-08-28 00:59 639234753811917646
20 ms 172.64.35.161
9 2026-08-28 00:43 639234743739767811
3 ms 108.162.195.161
8 2026-08-28 00:43 639234743739767811
3 ms 162.159.44.161
7 2026-08-28 00:43 639234743739767811
3 ms 172.64.35.161
6 2026-08-28 00:25 639234733372362811
8 ms 108.162.195.161
5 2026-08-28 00:25 639234733372362811
8 ms 162.159.44.161
4 2026-08-28 00:25 639234733372362811
8 ms 172.64.35.161
3 2026-08-28 00:08 639234723048550337
26 ms 108.162.195.161
2 2026-08-28 00:08 639234723048550337
26 ms 162.159.44.161
1 2026-08-28 00:08 639234723048550337
26 ms 172.64.35.161