DNS response history for ulla.ns.cloudflare.com

ulla.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 2026-08-15. For this date, NameServerHistory found 226 DNS check records, 225 successful responses, 1 failed responses, and 295 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 ulla.ns.cloudflare.com.
Records on Selected Date

226

Historical checks stored for this nameserver on selected date

Average Latency

295 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-15 23:53

All timestamps shown in UTC

Latest Resolved IP on Selected Date

173.245.58.233

Most recently resolved hosting IP on selected date

Successful Responses

225

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 ulla.ns.cloudflare.com

Showing DNS history for 2026-08-15 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
226 2026-08-15 23:53 639224347685767174
50 ms 173.245.58.233
225 2026-08-15 23:53 639224347685767174
50 ms 172.64.32.233
224 2026-08-15 23:53 639224347685767174
50 ms 108.162.192.233
223 2026-08-15 23:38 639224338276675277
2014 ms 108.162.192.233
222 2026-08-15 23:38 639224338276675277
2014 ms 173.245.58.233
221 2026-08-15 23:38 639224338276675277
2014 ms 172.64.32.233
220 2026-08-15 22:44 639224306594546649
50 ms 108.162.192.233
219 2026-08-15 22:44 639224306594546649
50 ms 172.64.32.233
218 2026-08-15 22:44 639224306594546649
50 ms 173.245.58.233
217 2026-08-15 22:29 639224297145423303
16 ms 173.245.58.233
216 2026-08-15 22:29 639224297145423303
16 ms 108.162.192.233
215 2026-08-15 22:29 639224297145423303
16 ms 172.64.32.233
214 2026-08-15 22:13 639224287678238833
10 ms 108.162.192.233
213 2026-08-15 22:13 639224287678238833
10 ms 172.64.32.233
212 2026-08-15 22:13 639224287678238833
10 ms 173.245.58.233
211 2026-08-15 21:58 639224278490872828
2040 ms 172.64.32.233
210 2026-08-15 21:58 639224278490872828
2040 ms 108.162.192.233
209 2026-08-15 21:58 639224278490872828
2040 ms 173.245.58.233
208 2026-08-15 21:42 639224269149307826
-
207 2026-08-15 21:27 639224259868597616
4 ms 108.162.192.233
206 2026-08-15 21:27 639224259868597616
4 ms 172.64.32.233
205 2026-08-15 21:27 639224259868597616
4 ms 173.245.58.233
204 2026-08-15 21:11 639224250518642175
26 ms 108.162.192.233
203 2026-08-15 21:11 639224250518642175
26 ms 172.64.32.233
202 2026-08-15 21:11 639224250518642175
26 ms 173.245.58.233
201 2026-08-15 20:55 639224241064772383
50 ms 108.162.192.233
200 2026-08-15 20:55 639224241064772383
50 ms 173.245.58.233
199 2026-08-15 20:55 639224241064772383
50 ms 172.64.32.233
198 2026-08-15 20:40 639224231691099605
25 ms 108.162.192.233
197 2026-08-15 20:40 639224231691099605
25 ms 173.245.58.233
196 2026-08-15 20:40 639224231691099605
25 ms 172.64.32.233
195 2026-08-15 20:24 639224222468168159
15 ms 108.162.192.233
194 2026-08-15 20:24 639224222468168159
15 ms 173.245.58.233
193 2026-08-15 20:24 639224222468168159
15 ms 172.64.32.233
192 2026-08-15 20:09 639224213173899635
5 ms 108.162.192.233
191 2026-08-15 20:09 639224213173899635
5 ms 172.64.32.233
190 2026-08-15 20:09 639224213173899635
5 ms 173.245.58.233
189 2026-08-15 19:53 639224203914451783
2020 ms 108.162.192.233
188 2026-08-15 19:53 639224203914451783
2020 ms 172.64.32.233
187 2026-08-15 19:53 639224203914451783
2020 ms 173.245.58.233
186 2026-08-15 19:00 639224172202542163
21 ms 108.162.192.233
185 2026-08-15 19:00 639224172202542163
21 ms 172.64.32.233
184 2026-08-15 19:00 639224172202542163
21 ms 173.245.58.233
183 2026-08-15 18:45 639224163338654093
6 ms 108.162.192.233
182 2026-08-15 18:45 639224163338654093
6 ms 172.64.32.233
181 2026-08-15 18:45 639224163338654093
6 ms 173.245.58.233
180 2026-08-15 18:30 639224154287995374
15 ms 108.162.192.233
179 2026-08-15 18:30 639224154287995374
15 ms 172.64.32.233
178 2026-08-15 18:30 639224154287995374
15 ms 173.245.58.233
177 2026-08-15 18:15 639224145118612503
6 ms 108.162.192.233
176 2026-08-15 18:15 639224145118612503
6 ms 172.64.32.233
175 2026-08-15 18:15 639224145118612503
6 ms 173.245.58.233
174 2026-08-15 18:00 639224135995990731
50 ms 173.245.58.233
173 2026-08-15 18:00 639224135995990731
50 ms 108.162.192.233
172 2026-08-15 18:00 639224135995990731
50 ms 172.64.32.233
171 2026-08-15 17:45 639224127185332624
35 ms 108.162.192.233
170 2026-08-15 17:45 639224127185332624
35 ms 172.64.32.233
169 2026-08-15 17:45 639224127185332624
35 ms 173.245.58.233
168 2026-08-15 17:30 639224118229289175
21 ms 108.162.192.233
167 2026-08-15 17:30 639224118229289175
21 ms 172.64.32.233
166 2026-08-15 17:30 639224118229289175
21 ms 173.245.58.233
165 2026-08-15 17:15 639224109273796359
51 ms 173.245.58.233
164 2026-08-15 17:15 639224109273796359
51 ms 108.162.192.233
163 2026-08-15 17:15 639224109273796359
51 ms 172.64.32.233
162 2026-08-15 17:01 639224100490805608
4027 ms 108.162.192.233
161 2026-08-15 17:01 639224100490805608
4027 ms 172.64.32.233
160 2026-08-15 17:01 639224100490805608
4027 ms 173.245.58.233
159 2026-08-15 16:46 639224091353714490
2024 ms 108.162.192.233
158 2026-08-15 16:46 639224091353714490
2024 ms 173.245.58.233
157 2026-08-15 16:46 639224091353714490
2024 ms 172.64.32.233
156 2026-08-15 16:30 639224082033126828
18 ms 173.245.58.233
155 2026-08-15 16:30 639224082033126828
18 ms 108.162.192.233
154 2026-08-15 16:30 639224082033126828
18 ms 172.64.32.233
153 2026-08-15 16:14 639224072736962403
4 ms 108.162.192.233
152 2026-08-15 16:14 639224072736962403
4 ms 172.64.32.233
151 2026-08-15 16:14 639224072736962403
4 ms 173.245.58.233
150 2026-08-15 15:22 639224041475563754
5 ms 108.162.192.233
149 2026-08-15 15:22 639224041475563754
5 ms 172.64.32.233
148 2026-08-15 15:22 639224041475563754
5 ms 173.245.58.233
147 2026-08-15 15:07 639224032345604453
5 ms 108.162.192.233
146 2026-08-15 15:07 639224032345604453
5 ms 172.64.32.233
145 2026-08-15 15:07 639224032345604453
5 ms 173.245.58.233
144 2026-08-15 14:52 639224023169497283
33 ms 108.162.192.233
143 2026-08-15 14:52 639224023169497283
33 ms 172.64.32.233
142 2026-08-15 14:52 639224023169497283
33 ms 173.245.58.233
141 2026-08-15 14:37 639224013981146405
10 ms 173.245.58.233
140 2026-08-15 14:37 639224013981146405
10 ms 172.64.32.233
139 2026-08-15 14:37 639224013981146405
10 ms 108.162.192.233
138 2026-08-15 14:21 639224004883412586
19 ms 108.162.192.233
137 2026-08-15 14:21 639224004883412586
19 ms 172.64.32.233
136 2026-08-15 14:21 639224004883412586
19 ms 173.245.58.233
135 2026-08-15 14:06 639223995612880615
9 ms 108.162.192.233
134 2026-08-15 14:06 639223995612880615
9 ms 173.245.58.233
133 2026-08-15 14:06 639223995612880615
9 ms 172.64.32.233
132 2026-08-15 13:50 639223986271830789
3 ms 108.162.192.233
131 2026-08-15 13:50 639223986271830789
3 ms 172.64.32.233
130 2026-08-15 13:50 639223986271830789
3 ms 173.245.58.233
129 2026-08-15 13:35 639223977005780949
9 ms 173.245.58.233
128 2026-08-15 13:35 639223977005780949
9 ms 172.64.32.233
127 2026-08-15 13:35 639223977005780949
9 ms 108.162.192.233
126 2026-08-15 13:19 639223967653137793
4 ms 108.162.192.233
125 2026-08-15 13:19 639223967653137793
4 ms 172.64.32.233
124 2026-08-15 13:19 639223967653137793
4 ms 173.245.58.233
123 2026-08-15 13:04 639223958286010799
13 ms 108.162.192.233
122 2026-08-15 13:04 639223958286010799
13 ms 172.64.32.233
121 2026-08-15 13:04 639223958286010799
13 ms 173.245.58.233
120 2026-08-15 12:48 639223948936108345
44 ms 108.162.192.233
119 2026-08-15 12:48 639223948936108345
44 ms 172.64.32.233
118 2026-08-15 12:48 639223948936108345
44 ms 173.245.58.233
117 2026-08-15 12:33 639223939673066880
12 ms 108.162.192.233
116 2026-08-15 12:33 639223939673066880
12 ms 172.64.32.233
115 2026-08-15 12:33 639223939673066880
12 ms 173.245.58.233
114 2026-08-15 11:41 639223908317760530
127 ms 108.162.192.233
113 2026-08-15 11:41 639223908317760530
127 ms 172.64.32.233
112 2026-08-15 11:41 639223908317760530
127 ms 173.245.58.233
111 2026-08-15 11:25 639223898992594258
31 ms 108.162.192.233
110 2026-08-15 11:25 639223898992594258
31 ms 172.64.32.233
109 2026-08-15 11:25 639223898992594258
31 ms 173.245.58.233
108 2026-08-15 11:10 639223889761312823
67 ms 108.162.192.233
107 2026-08-15 11:10 639223889761312823
67 ms 172.64.32.233
106 2026-08-15 11:10 639223889761312823
67 ms 173.245.58.233
105 2026-08-15 10:54 639223880359273507
78 ms 108.162.192.233
104 2026-08-15 10:54 639223880359273507
78 ms 172.64.32.233
103 2026-08-15 10:54 639223880359273507
78 ms 173.245.58.233
102 2026-08-15 10:38 639223870920466808
177 ms 173.245.58.233
101 2026-08-15 10:38 639223870920466808
177 ms 108.162.192.233
100 2026-08-15 10:38 639223870920466808
177 ms 172.64.32.233
99 2026-08-15 10:23 639223861579762179
29 ms 173.245.58.233
98 2026-08-15 10:23 639223861579762179
29 ms 108.162.192.233
97 2026-08-15 10:23 639223861579762179
29 ms 172.64.32.233
96 2026-08-15 10:07 639223852238616009
25 ms 173.245.58.233
95 2026-08-15 10:07 639223852238616009
25 ms 108.162.192.233
94 2026-08-15 10:07 639223852238616009
25 ms 172.64.32.233
93 2026-08-15 09:52 639223843019815620
114 ms 108.162.192.233
92 2026-08-15 09:52 639223843019815620
114 ms 172.64.32.233
91 2026-08-15 09:52 639223843019815620
114 ms 173.245.58.233
90 2026-08-15 09:36 639223833669915012
10 ms 108.162.192.233
89 2026-08-15 09:36 639223833669915012
10 ms 172.64.32.233
88 2026-08-15 09:36 639223833669915012
10 ms 173.245.58.233
87 2026-08-15 09:21 639223824494613222
6 ms 108.162.192.233
86 2026-08-15 09:21 639223824494613222
6 ms 172.64.32.233
85 2026-08-15 09:21 639223824494613222
6 ms 173.245.58.233
84 2026-08-15 09:05 639223815116325293
52 ms 108.162.192.233
83 2026-08-15 09:05 639223815116325293
52 ms 172.64.32.233
82 2026-08-15 09:05 639223815116325293
52 ms 173.245.58.233
81 2026-08-15 08:49 639223805493870221
41 ms 108.162.192.233
80 2026-08-15 08:49 639223805493870221
41 ms 172.64.32.233
79 2026-08-15 08:49 639223805493870221
41 ms 173.245.58.233
78 2026-08-15 07:57 639223774218660438
2010 ms 173.245.58.233
77 2026-08-15 07:57 639223774218660438
2010 ms 108.162.192.233
76 2026-08-15 07:57 639223774218660438
2010 ms 172.64.32.233
75 2026-08-15 07:41 639223764663090372
24 ms 108.162.192.233
74 2026-08-15 07:41 639223764663090372
24 ms 172.64.32.233
73 2026-08-15 07:41 639223764663090372
24 ms 173.245.58.233
72 2026-08-15 07:26 639223755338811400
10 ms 108.162.192.233
71 2026-08-15 07:26 639223755338811400
10 ms 173.245.58.233
70 2026-08-15 07:26 639223755338811400
10 ms 172.64.32.233
69 2026-08-15 07:10 639223746019193268
49 ms 108.162.192.233
68 2026-08-15 07:10 639223746019193268
49 ms 172.64.32.233
67 2026-08-15 07:10 639223746019193268
49 ms 173.245.58.233
66 2026-08-15 06:55 639223736658778104
21 ms 173.245.58.233
65 2026-08-15 06:55 639223736658778104
21 ms 108.162.192.233
64 2026-08-15 06:55 639223736658778104
21 ms 172.64.32.233
63 2026-08-15 06:39 639223727330194499
16 ms 108.162.192.233
62 2026-08-15 06:39 639223727330194499
16 ms 172.64.32.233
61 2026-08-15 06:39 639223727330194499
16 ms 173.245.58.233
60 2026-08-15 06:23 639223717848514742
36 ms 173.245.58.233
59 2026-08-15 06:23 639223717848514742
36 ms 108.162.192.233
58 2026-08-15 06:23 639223717848514742
36 ms 172.64.32.233
57 2026-08-15 06:07 639223708284754056
28 ms 108.162.192.233
56 2026-08-15 06:07 639223708284754056
28 ms 172.64.32.233
55 2026-08-15 06:07 639223708284754056
28 ms 173.245.58.233
54 2026-08-15 05:52 639223699061259933
15 ms 108.162.192.233
53 2026-08-15 05:52 639223699061259933
15 ms 172.64.32.233
52 2026-08-15 05:52 639223699061259933
15 ms 173.245.58.233
51 2026-08-15 05:36 639223689592545140
8 ms 108.162.192.233
50 2026-08-15 05:36 639223689592545140
8 ms 173.245.58.233
49 2026-08-15 05:36 639223689592545140
8 ms 172.64.32.233
48 2026-08-15 05:20 639223680143410810
21 ms 108.162.192.233
47 2026-08-15 05:20 639223680143410810
21 ms 172.64.32.233
46 2026-08-15 05:20 639223680143410810
21 ms 173.245.58.233
45 2026-08-15 05:04 639223670514517104
2026 ms 173.245.58.233
44 2026-08-15 05:04 639223670514517104
2026 ms 172.64.32.233
43 2026-08-15 05:04 639223670514517104
2026 ms 108.162.192.233
42 2026-08-15 04:11 639223638855054294
11 ms 108.162.192.233
41 2026-08-15 04:11 639223638855054294
11 ms 172.64.32.233
40 2026-08-15 04:11 639223638855054294
11 ms 173.245.58.233
39 2026-08-15 03:56 639223629623335972
62 ms 172.64.32.233
38 2026-08-15 03:56 639223629623335972
62 ms 108.162.192.233
37 2026-08-15 03:56 639223629623335972
62 ms 173.245.58.233
36 2026-08-15 03:41 639223620390189495
34 ms 173.245.58.233
35 2026-08-15 03:41 639223620390189495
34 ms 172.64.32.233
34 2026-08-15 03:41 639223620390189495
34 ms 108.162.192.233
33 2026-08-15 03:25 639223610916950440
36 ms 108.162.192.233
32 2026-08-15 03:25 639223610916950440
36 ms 172.64.32.233
31 2026-08-15 03:25 639223610916950440
36 ms 173.245.58.233
30 2026-08-15 03:09 639223601597759168
91 ms 173.245.58.233
29 2026-08-15 03:09 639223601597759168
91 ms 172.64.32.233
28 2026-08-15 03:09 639223601597759168
91 ms 108.162.192.233
27 2026-08-15 02:54 639223592342172093
4 ms 108.162.192.233
26 2026-08-15 02:54 639223592342172093
4 ms 172.64.32.233
25 2026-08-15 02:54 639223592342172093
4 ms 173.245.58.233
24 2026-08-15 02:39 639223583324121497
2014 ms 108.162.192.233
23 2026-08-15 02:39 639223583324121497
2014 ms 173.245.58.233
22 2026-08-15 02:39 639223583324121497
2014 ms 172.64.32.233
21 2026-08-15 02:23 639223574086714218
13 ms 108.162.192.233
20 2026-08-15 02:23 639223574086714218
13 ms 172.64.32.233
19 2026-08-15 02:23 639223574086714218
13 ms 173.245.58.233
18 2026-08-15 02:08 639223564698424889
9 ms 172.64.32.233
17 2026-08-15 02:08 639223564698424889
9 ms 108.162.192.233
16 2026-08-15 02:08 639223564698424889
9 ms 173.245.58.233
15 2026-08-15 01:52 639223555408664206
44 ms 108.162.192.233
14 2026-08-15 01:52 639223555408664206
44 ms 172.64.32.233
13 2026-08-15 01:52 639223555408664206
44 ms 173.245.58.233
12 2026-08-15 01:37 639223546000912416
4 ms 108.162.192.233
11 2026-08-15 01:37 639223546000912416
4 ms 172.64.32.233
10 2026-08-15 01:37 639223546000912416
4 ms 173.245.58.233
9 2026-08-15 01:21 639223536550774847
2026 ms 172.64.32.233
8 2026-08-15 01:21 639223536550774847
2026 ms 108.162.192.233
7 2026-08-15 01:21 639223536550774847
2026 ms 173.245.58.233
6 2026-08-15 00:28 639223505017205611
4 ms 108.162.192.233
5 2026-08-15 00:28 639223505017205611
4 ms 172.64.32.233
4 2026-08-15 00:28 639223505017205611
4 ms 173.245.58.233
3 2026-08-15 00:13 639223495784410207
5 ms 108.162.192.233
2 2026-08-15 00:13 639223495784410207
5 ms 172.64.32.233
1 2026-08-15 00:13 639223495784410207
5 ms 173.245.58.233