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 2026-08-17. For this date, NameServerHistory found 212 DNS check records, 210 successful responses, 2 failed responses, and 307 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

212

Historical checks stored for this nameserver on selected date

Average Latency

307 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-17 23:48

All timestamps shown in UTC

Latest Resolved IP on Selected Date

172.64.32.233

Most recently resolved hosting IP on selected date

Successful Responses

210

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 ulla.ns.cloudflare.com

Showing DNS history for 2026-08-17 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
212 2026-08-17 23:48 639226072268080268
34 ms 172.64.32.233
211 2026-08-17 23:48 639226072268080268
34 ms 108.162.192.233
210 2026-08-17 23:48 639226072268080268
34 ms 173.245.58.233
209 2026-08-17 23:31 639226062577647657
22 ms 108.162.192.233
208 2026-08-17 23:31 639226062577647657
22 ms 172.64.32.233
207 2026-08-17 23:31 639226062577647657
22 ms 173.245.58.233
206 2026-08-17 22:39 639226031060857136
4 ms 108.162.192.233
205 2026-08-17 22:39 639226031060857136
4 ms 172.64.32.233
204 2026-08-17 22:39 639226031060857136
4 ms 173.245.58.233
203 2026-08-17 22:23 639226021535117364
2051 ms 172.64.32.233
202 2026-08-17 22:23 639226021535117364
2051 ms 108.162.192.233
201 2026-08-17 22:23 639226021535117364
2051 ms 173.245.58.233
200 2026-08-17 22:07 639226011884237078
50 ms 108.162.192.233
199 2026-08-17 22:07 639226011884237078
50 ms 172.64.32.233
198 2026-08-17 22:07 639226011884237078
50 ms 173.245.58.233
197 2026-08-17 21:51 639226002309299142
38 ms 108.162.192.233
196 2026-08-17 21:51 639226002309299142
38 ms 172.64.32.233
195 2026-08-17 21:51 639226002309299142
38 ms 173.245.58.233
194 2026-08-17 21:35 639225992791784448
16 ms 108.162.192.233
193 2026-08-17 21:35 639225992791784448
16 ms 173.245.58.233
192 2026-08-17 21:35 639225992791784448
16 ms 172.64.32.233
191 2026-08-17 21:19 639225983045271390
3 ms 108.162.192.233
190 2026-08-17 21:19 639225983045271390
3 ms 172.64.32.233
189 2026-08-17 21:19 639225983045271390
3 ms 173.245.58.233
188 2026-08-17 21:02 639225973246293513
11 ms 173.245.58.233
187 2026-08-17 21:02 639225973246293513
11 ms 172.64.32.233
186 2026-08-17 21:02 639225973246293513
11 ms 108.162.192.233
185 2026-08-17 20:47 639225963620186236
48 ms 108.162.192.233
184 2026-08-17 20:47 639225963620186236
48 ms 172.64.32.233
183 2026-08-17 20:47 639225963620186236
48 ms 173.245.58.233
182 2026-08-17 20:30 639225953899183916
18 ms 108.162.192.233
181 2026-08-17 20:30 639225953899183916
18 ms 172.64.32.233
180 2026-08-17 20:30 639225953899183916
18 ms 173.245.58.233
179 2026-08-17 20:14 639225944391528206
2040 ms 172.64.32.233
178 2026-08-17 20:14 639225944391528206
2040 ms 108.162.192.233
177 2026-08-17 20:14 639225944391528206
2040 ms 173.245.58.233
176 2026-08-17 19:58 639225934593254169
5 ms 108.162.192.233
175 2026-08-17 19:58 639225934593254169
5 ms 172.64.32.233
174 2026-08-17 19:58 639225934593254169
5 ms 173.245.58.233
173 2026-08-17 19:42 639225924669984512
2032 ms 172.64.32.233
172 2026-08-17 19:42 639225924669984512
2032 ms 173.245.58.233
171 2026-08-17 19:42 639225924669984512
2032 ms 108.162.192.233
170 2026-08-17 18:49 639225893048561320
50 ms 108.162.192.233
169 2026-08-17 18:49 639225893048561320
50 ms 172.64.32.233
168 2026-08-17 18:49 639225893048561320
50 ms 173.245.58.233
167 2026-08-17 18:33 639225883481298424
8 ms 108.162.192.233
166 2026-08-17 18:33 639225883481298424
8 ms 172.64.32.233
165 2026-08-17 18:33 639225883481298424
8 ms 173.245.58.233
164 2026-08-17 18:17 639225873845394034
40 ms 173.245.58.233
163 2026-08-17 18:17 639225873845394034
40 ms 172.64.32.233
162 2026-08-17 18:17 639225873845394034
40 ms 108.162.192.233
161 2026-08-17 18:01 639225864216078662
11 ms 108.162.192.233
160 2026-08-17 18:01 639225864216078662
11 ms 173.245.58.233
159 2026-08-17 18:01 639225864216078662
11 ms 172.64.32.233
158 2026-08-17 17:45 639225854541857773
12 ms 108.162.192.233
157 2026-08-17 17:45 639225854541857773
12 ms 173.245.58.233
156 2026-08-17 17:45 639225854541857773
12 ms 172.64.32.233
155 2026-08-17 17:28 639225844733604072
7 ms 108.162.192.233
154 2026-08-17 17:28 639225844733604072
7 ms 172.64.32.233
153 2026-08-17 17:28 639225844733604072
7 ms 173.245.58.233
152 2026-08-17 17:12 639225835085229232
27 ms 108.162.192.233
151 2026-08-17 17:12 639225835085229232
27 ms 173.245.58.233
150 2026-08-17 17:12 639225835085229232
27 ms 172.64.32.233
149 2026-08-17 16:56 639225825349373981
53 ms 108.162.192.233
148 2026-08-17 16:56 639225825349373981
53 ms 172.64.32.233
147 2026-08-17 16:56 639225825349373981
53 ms 173.245.58.233
146 2026-08-17 16:40 639225815690604161
8 ms 108.162.192.233
145 2026-08-17 16:40 639225815690604161
8 ms 172.64.32.233
144 2026-08-17 16:40 639225815690604161
8 ms 173.245.58.233
143 2026-08-17 16:24 639225805952472306
44 ms 172.64.32.233
142 2026-08-17 16:24 639225805952472306
44 ms 108.162.192.233
141 2026-08-17 16:24 639225805952472306
44 ms 173.245.58.233
140 2026-08-17 16:07 639225796264729638
4 ms 108.162.192.233
139 2026-08-17 16:07 639225796264729638
4 ms 172.64.32.233
138 2026-08-17 16:07 639225796264729638
4 ms 173.245.58.233
137 2026-08-17 15:51 639225786326499329
2037 ms 172.64.32.233
136 2026-08-17 15:51 639225786326499329
2037 ms 108.162.192.233
135 2026-08-17 15:51 639225786326499329
2037 ms 173.245.58.233
134 2026-08-17 14:58 639225754798130711
43 ms 108.162.192.233
133 2026-08-17 14:58 639225754798130711
43 ms 172.64.32.233
132 2026-08-17 14:58 639225754798130711
43 ms 173.245.58.233
131 2026-08-17 14:42 639225745123193922
11 ms 108.162.192.233
130 2026-08-17 14:42 639225745123193922
11 ms 173.245.58.233
129 2026-08-17 14:42 639225745123193922
11 ms 172.64.32.233
128 2026-08-17 14:26 639225735540597271
53 ms 108.162.192.233
127 2026-08-17 14:26 639225735540597271
53 ms 172.64.32.233
126 2026-08-17 14:26 639225735540597271
53 ms 173.245.58.233
125 2026-08-17 14:10 639225725894857396
10 ms 173.245.58.233
124 2026-08-17 14:10 639225725894857396
10 ms 172.64.32.233
123 2026-08-17 14:10 639225725894857396
10 ms 108.162.192.233
122 2026-08-17 13:54 639225716249606913
35 ms 172.64.32.233
121 2026-08-17 13:54 639225716249606913
35 ms 108.162.192.233
120 2026-08-17 13:54 639225716249606913
35 ms 173.245.58.233
119 2026-08-17 13:38 639225706638238179
4 ms 108.162.192.233
118 2026-08-17 13:38 639225706638238179
4 ms 172.64.32.233
117 2026-08-17 13:38 639225706638238179
4 ms 173.245.58.233
116 2026-08-17 13:22 639225696949691423
4 ms 108.162.192.233
115 2026-08-17 13:22 639225696949691423
4 ms 172.64.32.233
114 2026-08-17 13:22 639225696949691423
4 ms 173.245.58.233
113 2026-08-17 13:06 639225687286186336
35 ms 108.162.192.233
112 2026-08-17 13:06 639225687286186336
35 ms 172.64.32.233
111 2026-08-17 13:06 639225687286186336
35 ms 173.245.58.233
110 2026-08-17 12:50 639225677679573133
6 ms 108.162.192.233
109 2026-08-17 12:50 639225677679573133
6 ms 172.64.32.233
108 2026-08-17 12:50 639225677679573133
6 ms 173.245.58.233
107 2026-08-17 12:34 639225667957861024
45 ms 172.64.32.233
106 2026-08-17 12:34 639225667957861024
45 ms 173.245.58.233
105 2026-08-17 12:34 639225667957861024
45 ms 108.162.192.233
104 2026-08-17 12:18 639225658298791618
7 ms 108.162.192.233
103 2026-08-17 12:18 639225658298791618
7 ms 173.245.58.233
102 2026-08-17 12:18 639225658298791618
7 ms 172.64.32.233
101 2026-08-17 12:01 639225648583652785
2009 ms 173.245.58.233
100 2026-08-17 12:01 639225648583652785
2009 ms 172.64.32.233
99 2026-08-17 12:01 639225648583652785
2009 ms 108.162.192.233
98 2026-08-17 11:09 639225617000524308
26 ms 108.162.192.233
97 2026-08-17 11:09 639225617000524308
26 ms 172.64.32.233
96 2026-08-17 11:09 639225617000524308
26 ms 173.245.58.233
95 2026-08-17 10:53 639225607668541600
23 ms 108.162.192.233
94 2026-08-17 10:53 639225607668541600
23 ms 173.245.58.233
93 2026-08-17 10:53 639225607668541600
23 ms 172.64.32.233
92 2026-08-17 10:37 639225598117279238
8 ms 172.64.32.233
91 2026-08-17 10:37 639225598117279238
8 ms 108.162.192.233
90 2026-08-17 10:37 639225598117279238
8 ms 173.245.58.233
89 2026-08-17 10:22 639225588751002710
4042 ms 173.245.58.233
88 2026-08-17 10:22 639225588751002710
4042 ms 172.64.32.233
87 2026-08-17 10:22 639225588751002710
4042 ms 108.162.192.233
86 2026-08-17 10:06 639225579295831051
6 ms 108.162.192.233
85 2026-08-17 10:06 639225579295831051
6 ms 172.64.32.233
84 2026-08-17 10:06 639225579295831051
6 ms 173.245.58.233
83 2026-08-17 09:50 639225569761469940
7 ms 172.64.32.233
82 2026-08-17 09:50 639225569761469940
7 ms 108.162.192.233
81 2026-08-17 09:50 639225569761469940
7 ms 173.245.58.233
80 2026-08-17 09:34 639225560161422333
25 ms 172.64.32.233
79 2026-08-17 09:34 639225560161422333
25 ms 108.162.192.233
78 2026-08-17 09:34 639225560161422333
25 ms 173.245.58.233
77 2026-08-17 09:18 639225550739955565
8 ms 173.245.58.233
76 2026-08-17 09:18 639225550739955565
8 ms 172.64.32.233
75 2026-08-17 09:18 639225550739955565
8 ms 108.162.192.233
74 2026-08-17 09:02 639225541125222426
32 ms 172.64.32.233
73 2026-08-17 09:02 639225541125222426
32 ms 108.162.192.233
72 2026-08-17 09:02 639225541125222426
32 ms 173.245.58.233
71 2026-08-17 08:46 639225531526675983
-
70 2026-08-17 08:30 639225521915528222
11 ms 173.245.58.233
69 2026-08-17 08:30 639225521915528222
11 ms 172.64.32.233
68 2026-08-17 08:30 639225521915528222
11 ms 108.162.192.233
67 2026-08-17 08:14 639225512148151789
3 ms 108.162.192.233
66 2026-08-17 08:14 639225512148151789
3 ms 172.64.32.233
65 2026-08-17 08:14 639225512148151789
3 ms 173.245.58.233
64 2026-08-17 07:22 639225480786142412
5 ms 108.162.192.233
63 2026-08-17 07:22 639225480786142412
5 ms 172.64.32.233
62 2026-08-17 07:22 639225480786142412
5 ms 173.245.58.233
61 2026-08-17 07:06 639225471394348551
43 ms 108.162.192.233
60 2026-08-17 07:06 639225471394348551
43 ms 172.64.32.233
59 2026-08-17 07:06 639225471394348551
43 ms 173.245.58.233
58 2026-08-17 06:50 639225462031685068
31 ms 172.64.32.233
57 2026-08-17 06:50 639225462031685068
31 ms 108.162.192.233
56 2026-08-17 06:50 639225462031685068
31 ms 173.245.58.233
55 2026-08-17 06:35 639225452639458328
7 ms 173.245.58.233
54 2026-08-17 06:35 639225452639458328
7 ms 172.64.32.233
53 2026-08-17 06:35 639225452639458328
7 ms 108.162.192.233
52 2026-08-17 06:19 639225443300966543
14 ms 172.64.32.233
51 2026-08-17 06:19 639225443300966543
14 ms 108.162.192.233
50 2026-08-17 06:19 639225443300966543
14 ms 173.245.58.233
49 2026-08-17 06:03 639225433880499379
10 ms 108.162.192.233
48 2026-08-17 06:03 639225433880499379
10 ms 172.64.32.233
47 2026-08-17 06:03 639225433880499379
10 ms 173.245.58.233
46 2026-08-17 05:48 639225424395198277
20 ms 108.162.192.233
45 2026-08-17 05:48 639225424395198277
20 ms 172.64.32.233
44 2026-08-17 05:48 639225424395198277
20 ms 173.245.58.233
43 2026-08-17 05:32 639225414744137487
2012 ms 172.64.32.233
42 2026-08-17 05:32 639225414744137487
2012 ms 108.162.192.233
41 2026-08-17 05:32 639225414744137487
2012 ms 173.245.58.233
40 2026-08-17 05:16 639225405186783164
21 ms 108.162.192.233
39 2026-08-17 05:16 639225405186783164
21 ms 172.64.32.233
38 2026-08-17 05:16 639225405186783164
21 ms 173.245.58.233
37 2026-08-17 05:00 639225395563669822
17 ms 172.64.32.233
36 2026-08-17 05:00 639225395563669822
17 ms 108.162.192.233
35 2026-08-17 05:00 639225395563669822
17 ms 173.245.58.233
34 2026-08-17 04:44 639225386076645158
8 ms 108.162.192.233
33 2026-08-17 04:44 639225386076645158
8 ms 173.245.58.233
32 2026-08-17 04:44 639225386076645158
8 ms 172.64.32.233
31 2026-08-17 04:28 639225376620669704
2017 ms 108.162.192.233
30 2026-08-17 04:28 639225376620669704
2017 ms 172.64.32.233
29 2026-08-17 04:28 639225376620669704
2017 ms 173.245.58.233
28 2026-08-17 03:36 639225345580892706
4 ms 108.162.192.233
27 2026-08-17 03:36 639225345580892706
4 ms 172.64.32.233
26 2026-08-17 03:36 639225345580892706
4 ms 173.245.58.233
25 2026-08-17 03:21 639225336207383710
-
24 2026-08-17 03:05 639225326726565001
21 ms 108.162.192.233
23 2026-08-17 03:05 639225326726565001
21 ms 173.245.58.233
22 2026-08-17 03:05 639225326726565001
21 ms 172.64.32.233
21 2026-08-17 02:49 639225317249271010
3 ms 108.162.192.233
20 2026-08-17 02:49 639225317249271010
3 ms 172.64.32.233
19 2026-08-17 02:49 639225317249271010
3 ms 173.245.58.233
18 2026-08-17 01:57 639225286280886044
26 ms 108.162.192.233
17 2026-08-17 01:57 639225286280886044
26 ms 172.64.32.233
16 2026-08-17 01:57 639225286280886044
26 ms 173.245.58.233
15 2026-08-17 01:42 639225276872567548
7 ms 108.162.192.233
14 2026-08-17 01:42 639225276872567548
7 ms 173.245.58.233
13 2026-08-17 01:42 639225276872567548
7 ms 172.64.32.233
12 2026-08-17 01:26 639225267353865348
8 ms 173.245.58.233
11 2026-08-17 01:26 639225267353865348
8 ms 108.162.192.233
10 2026-08-17 01:26 639225267353865348
8 ms 172.64.32.233
9 2026-08-17 01:10 639225258033914248
2011 ms 173.245.58.233
8 2026-08-17 01:10 639225258033914248
2011 ms 172.64.32.233
7 2026-08-17 01:10 639225258033914248
2011 ms 108.162.192.233
6 2026-08-17 00:18 639225226652221583
24 ms 108.162.192.233
5 2026-08-17 00:18 639225226652221583
24 ms 172.64.32.233
4 2026-08-17 00:18 639225226652221583
24 ms 173.245.58.233
3 2026-08-17 00:02 639225217156387684
25 ms 108.162.192.233
2 2026-08-17 00:02 639225217156387684
25 ms 172.64.32.233
1 2026-08-17 00:02 639225217156387684
25 ms 173.245.58.233