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 2026-08-13. For this date, NameServerHistory found 214 DNS check records, 213 successful responses, 1 failed responses, and 304 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

214

Historical checks stored for this nameserver on selected date

Average Latency

304 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-13 23:51

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

213

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 2026-08-13 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
214 2026-08-13 23:51 639222618462620588
2011 ms 172.64.32.233
213 2026-08-13 23:51 639222618462620588
2011 ms 173.245.58.233
212 2026-08-13 23:51 639222618462620588
2011 ms 108.162.192.233
211 2026-08-13 23:34 639222608688333012
9 ms 108.162.192.233
210 2026-08-13 23:34 639222608688333012
9 ms 172.64.32.233
209 2026-08-13 23:34 639222608688333012
9 ms 173.245.58.233
208 2026-08-13 23:18 639222598741756356
20 ms 172.64.32.233
207 2026-08-13 23:18 639222598741756356
20 ms 173.245.58.233
206 2026-08-13 23:18 639222598741756356
20 ms 108.162.192.233
205 2026-08-13 23:01 639222588615244093
24 ms 108.162.192.233
204 2026-08-13 23:01 639222588615244093
24 ms 172.64.32.233
203 2026-08-13 23:01 639222588615244093
24 ms 173.245.58.233
202 2026-08-13 22:07 639222556495289724
2017 ms 173.245.58.233
201 2026-08-13 22:07 639222556495289724
2017 ms 108.162.192.233
200 2026-08-13 22:07 639222556495289724
2017 ms 172.64.32.233
199 2026-08-13 21:50 639222546477917698
2012 ms 173.245.58.233
198 2026-08-13 21:50 639222546477917698
2012 ms 108.162.192.233
197 2026-08-13 21:50 639222546477917698
2012 ms 172.64.32.233
196 2026-08-13 21:33 639222536257653790
4 ms 108.162.192.233
195 2026-08-13 21:33 639222536257653790
4 ms 172.64.32.233
194 2026-08-13 21:33 639222536257653790
4 ms 173.245.58.233
193 2026-08-13 21:16 639222525833084485
20 ms 108.162.192.233
192 2026-08-13 21:16 639222525833084485
20 ms 172.64.32.233
191 2026-08-13 21:16 639222525833084485
20 ms 173.245.58.233
190 2026-08-13 20:59 639222515446085004
47 ms 108.162.192.233
189 2026-08-13 20:59 639222515446085004
47 ms 173.245.58.233
188 2026-08-13 20:59 639222515446085004
47 ms 172.64.32.233
187 2026-08-13 20:42 639222505166766781
4 ms 108.162.192.233
186 2026-08-13 20:42 639222505166766781
4 ms 172.64.32.233
185 2026-08-13 20:42 639222505166766781
4 ms 173.245.58.233
184 2026-08-13 20:25 639222494930541001
-
183 2026-08-13 20:07 639222484469216890
42 ms 172.64.32.233
182 2026-08-13 20:07 639222484469216890
42 ms 173.245.58.233
181 2026-08-13 20:07 639222484469216890
42 ms 108.162.192.233
180 2026-08-13 19:50 639222474270039940
4 ms 108.162.192.233
179 2026-08-13 19:50 639222474270039940
4 ms 172.64.32.233
178 2026-08-13 19:50 639222474270039940
4 ms 173.245.58.233
177 2026-08-13 19:33 639222464005587385
7 ms 172.64.32.233
176 2026-08-13 19:33 639222464005587385
7 ms 173.245.58.233
175 2026-08-13 19:33 639222464005587385
7 ms 108.162.192.233
174 2026-08-13 19:15 639222453485975041
18 ms 173.245.58.233
173 2026-08-13 19:15 639222453485975041
18 ms 172.64.32.233
172 2026-08-13 19:15 639222453485975041
18 ms 108.162.192.233
171 2026-08-13 18:58 639222442984828770
7 ms 108.162.192.233
170 2026-08-13 18:58 639222442984828770
7 ms 172.64.32.233
169 2026-08-13 18:58 639222442984828770
7 ms 173.245.58.233
168 2026-08-13 18:03 639222410191353397
9 ms 108.162.192.233
167 2026-08-13 18:03 639222410191353397
9 ms 172.64.32.233
166 2026-08-13 18:03 639222410191353397
9 ms 173.245.58.233
165 2026-08-13 17:46 639222399952628376
42 ms 108.162.192.233
164 2026-08-13 17:46 639222399952628376
42 ms 172.64.32.233
163 2026-08-13 17:46 639222399952628376
42 ms 173.245.58.233
162 2026-08-13 17:29 639222389608608647
20 ms 108.162.192.233
161 2026-08-13 17:29 639222389608608647
20 ms 172.64.32.233
160 2026-08-13 17:29 639222389608608647
20 ms 173.245.58.233
159 2026-08-13 17:12 639222379604012481
8 ms 108.162.192.233
158 2026-08-13 17:12 639222379604012481
8 ms 172.64.32.233
157 2026-08-13 17:12 639222379604012481
8 ms 173.245.58.233
156 2026-08-13 16:55 639222369372672858
25 ms 172.64.32.233
155 2026-08-13 16:55 639222369372672858
25 ms 173.245.58.233
154 2026-08-13 16:55 639222369372672858
25 ms 108.162.192.233
153 2026-08-13 16:38 639222359096909298
39 ms 172.64.32.233
152 2026-08-13 16:38 639222359096909298
39 ms 173.245.58.233
151 2026-08-13 16:38 639222359096909298
39 ms 108.162.192.233
150 2026-08-13 16:21 639222348814301655
13 ms 108.162.192.233
149 2026-08-13 16:21 639222348814301655
13 ms 172.64.32.233
148 2026-08-13 16:21 639222348814301655
13 ms 173.245.58.233
147 2026-08-13 16:04 639222338608331104
47 ms 108.162.192.233
146 2026-08-13 16:04 639222338608331104
47 ms 172.64.32.233
145 2026-08-13 16:04 639222338608331104
47 ms 173.245.58.233
144 2026-08-13 15:47 639222328204609760
35 ms 108.162.192.233
143 2026-08-13 15:47 639222328204609760
35 ms 172.64.32.233
142 2026-08-13 15:47 639222328204609760
35 ms 173.245.58.233
141 2026-08-13 15:29 639222317859759909
41 ms 172.64.32.233
140 2026-08-13 15:29 639222317859759909
41 ms 173.245.58.233
139 2026-08-13 15:29 639222317859759909
41 ms 108.162.192.233
138 2026-08-13 15:12 639222307560137918
4 ms 108.162.192.233
137 2026-08-13 15:12 639222307560137918
4 ms 172.64.32.233
136 2026-08-13 15:12 639222307560137918
4 ms 173.245.58.233
135 2026-08-13 14:55 639222297274357149
2020 ms 108.162.192.233
134 2026-08-13 14:55 639222297274357149
2020 ms 172.64.32.233
133 2026-08-13 14:55 639222297274357149
2020 ms 173.245.58.233
132 2026-08-13 14:01 639222265004477827
72 ms 108.162.192.233
131 2026-08-13 14:01 639222265004477827
72 ms 172.64.32.233
130 2026-08-13 14:01 639222265004477827
72 ms 173.245.58.233
129 2026-08-13 13:45 639222255176583683
33 ms 108.162.192.233
128 2026-08-13 13:45 639222255176583683
33 ms 172.64.32.233
127 2026-08-13 13:45 639222255176583683
33 ms 173.245.58.233
126 2026-08-13 13:29 639222245340146131
51 ms 108.162.192.233
125 2026-08-13 13:29 639222245340146131
51 ms 172.64.32.233
124 2026-08-13 13:29 639222245340146131
51 ms 173.245.58.233
123 2026-08-13 13:13 639222235662219956
26 ms 108.162.192.233
122 2026-08-13 13:13 639222235662219956
26 ms 172.64.32.233
121 2026-08-13 13:13 639222235662219956
26 ms 173.245.58.233
120 2026-08-13 12:56 639222225817223284
15 ms 108.162.192.233
119 2026-08-13 12:56 639222225817223284
15 ms 172.64.32.233
118 2026-08-13 12:56 639222225817223284
15 ms 173.245.58.233
117 2026-08-13 12:40 639222216341869648
25 ms 108.162.192.233
116 2026-08-13 12:40 639222216341869648
25 ms 172.64.32.233
115 2026-08-13 12:40 639222216341869648
25 ms 173.245.58.233
114 2026-08-13 12:25 639222206848442189
6 ms 108.162.192.233
113 2026-08-13 12:25 639222206848442189
6 ms 172.64.32.233
112 2026-08-13 12:25 639222206848442189
6 ms 173.245.58.233
111 2026-08-13 12:09 639222197538963225
16 ms 108.162.192.233
110 2026-08-13 12:09 639222197538963225
16 ms 172.64.32.233
109 2026-08-13 12:09 639222197538963225
16 ms 173.245.58.233
108 2026-08-13 11:53 639222188113685569
50 ms 108.162.192.233
107 2026-08-13 11:53 639222188113685569
50 ms 172.64.32.233
106 2026-08-13 11:53 639222188113685569
50 ms 173.245.58.233
105 2026-08-13 11:38 639222178880138458
4 ms 108.162.192.233
104 2026-08-13 11:38 639222178880138458
4 ms 172.64.32.233
103 2026-08-13 11:38 639222178880138458
4 ms 173.245.58.233
102 2026-08-13 11:22 639222169343013317
14 ms 108.162.192.233
101 2026-08-13 11:22 639222169343013317
14 ms 172.64.32.233
100 2026-08-13 11:22 639222169343013317
14 ms 173.245.58.233
99 2026-08-13 11:06 639222159910600596
3 ms 108.162.192.233
98 2026-08-13 11:06 639222159910600596
3 ms 172.64.32.233
97 2026-08-13 11:06 639222159910600596
3 ms 173.245.58.233
96 2026-08-13 10:14 639222128676274866
6 ms 108.162.192.233
95 2026-08-13 10:14 639222128676274866
6 ms 172.64.32.233
94 2026-08-13 10:14 639222128676274866
6 ms 173.245.58.233
93 2026-08-13 09:58 639222119169781983
3 ms 108.162.192.233
92 2026-08-13 09:58 639222119169781983
3 ms 172.64.32.233
91 2026-08-13 09:58 639222119169781983
3 ms 173.245.58.233
90 2026-08-13 09:43 639222109996148889
23 ms 108.162.192.233
89 2026-08-13 09:43 639222109996148889
23 ms 172.64.32.233
88 2026-08-13 09:43 639222109996148889
23 ms 173.245.58.233
87 2026-08-13 09:28 639222100791323799
12 ms 172.64.32.233
86 2026-08-13 09:28 639222100791323799
12 ms 108.162.192.233
85 2026-08-13 09:28 639222100791323799
12 ms 173.245.58.233
84 2026-08-13 09:12 639222091647893142
4 ms 108.162.192.233
83 2026-08-13 09:12 639222091647893142
4 ms 172.64.32.233
82 2026-08-13 09:12 639222091647893142
4 ms 173.245.58.233
81 2026-08-13 08:57 639222082524717649
38 ms 108.162.192.233
80 2026-08-13 08:57 639222082524717649
38 ms 172.64.32.233
79 2026-08-13 08:57 639222082524717649
38 ms 173.245.58.233
78 2026-08-13 08:42 639222073378630456
2029 ms 173.245.58.233
77 2026-08-13 08:42 639222073378630456
2029 ms 108.162.192.233
76 2026-08-13 08:42 639222073378630456
2029 ms 172.64.32.233
75 2026-08-13 08:27 639222064537306701
7 ms 108.162.192.233
74 2026-08-13 08:27 639222064537306701
7 ms 172.64.32.233
73 2026-08-13 08:27 639222064537306701
7 ms 173.245.58.233
72 2026-08-13 08:12 639222055409471864
32 ms 108.162.192.233
71 2026-08-13 08:12 639222055409471864
32 ms 172.64.32.233
70 2026-08-13 08:12 639222055409471864
32 ms 173.245.58.233
69 2026-08-13 07:57 639222046117152411
22 ms 108.162.192.233
68 2026-08-13 07:57 639222046117152411
22 ms 172.64.32.233
67 2026-08-13 07:57 639222046117152411
22 ms 173.245.58.233
66 2026-08-13 07:41 639222036915107067
39 ms 108.162.192.233
65 2026-08-13 07:41 639222036915107067
39 ms 172.64.32.233
64 2026-08-13 07:41 639222036915107067
39 ms 173.245.58.233
63 2026-08-13 07:26 639222027654889141
2016 ms 108.162.192.233
62 2026-08-13 07:26 639222027654889141
2016 ms 172.64.32.233
61 2026-08-13 07:26 639222027654889141
2016 ms 173.245.58.233
60 2026-08-13 06:34 639221996824612035
40 ms 108.162.192.233
59 2026-08-13 06:34 639221996824612035
40 ms 172.64.32.233
58 2026-08-13 06:34 639221996824612035
40 ms 173.245.58.233
57 2026-08-13 06:20 639221987863418113
9 ms 108.162.192.233
56 2026-08-13 06:20 639221987863418113
9 ms 172.64.32.233
55 2026-08-13 06:20 639221987863418113
9 ms 173.245.58.233
54 2026-08-13 06:05 639221979006823112
22 ms 108.162.192.233
53 2026-08-13 06:05 639221979006823112
22 ms 172.64.32.233
52 2026-08-13 06:05 639221979006823112
22 ms 173.245.58.233
51 2026-08-13 05:50 639221970068466615
45 ms 108.162.192.233
50 2026-08-13 05:50 639221970068466615
45 ms 172.64.32.233
49 2026-08-13 05:50 639221970068466615
45 ms 173.245.58.233
48 2026-08-13 05:35 639221961001585139
24 ms 173.245.58.233
47 2026-08-13 05:35 639221961001585139
24 ms 172.64.32.233
46 2026-08-13 05:35 639221961001585139
24 ms 108.162.192.233
45 2026-08-13 05:20 639221952104046397
13 ms 108.162.192.233
44 2026-08-13 05:20 639221952104046397
13 ms 173.245.58.233
43 2026-08-13 05:20 639221952104046397
13 ms 172.64.32.233
42 2026-08-13 05:05 639221943247694484
2 ms 108.162.192.233
41 2026-08-13 05:05 639221943247694484
2 ms 172.64.32.233
40 2026-08-13 05:05 639221943247694484
2 ms 173.245.58.233
39 2026-08-13 04:51 639221934603388241
54 ms 172.64.32.233
38 2026-08-13 04:51 639221934603388241
54 ms 108.162.192.233
37 2026-08-13 04:51 639221934603388241
54 ms 173.245.58.233
36 2026-08-13 04:36 639221925729273358
6 ms 108.162.192.233
35 2026-08-13 04:36 639221925729273358
6 ms 172.64.32.233
34 2026-08-13 04:36 639221925729273358
6 ms 173.245.58.233
33 2026-08-13 04:21 639221916777813401
16 ms 108.162.192.233
32 2026-08-13 04:21 639221916777813401
16 ms 172.64.32.233
31 2026-08-13 04:21 639221916777813401
16 ms 173.245.58.233
30 2026-08-13 04:06 639221907816913910
2048 ms 173.245.58.233
29 2026-08-13 04:06 639221907816913910
2048 ms 108.162.192.233
28 2026-08-13 04:06 639221907816913910
2048 ms 172.64.32.233
27 2026-08-13 03:51 639221898639694322
38 ms 108.162.192.233
26 2026-08-13 03:51 639221898639694322
38 ms 172.64.32.233
25 2026-08-13 03:51 639221898639694322
38 ms 173.245.58.233
24 2026-08-13 03:00 639221868257567489
70 ms 173.245.58.233
23 2026-08-13 03:00 639221868257567489
70 ms 108.162.192.233
22 2026-08-13 03:00 639221868257567489
70 ms 172.64.32.233
21 2026-08-13 02:45 639221859270235608
2033 ms 108.162.192.233
20 2026-08-13 02:45 639221859270235608
2033 ms 172.64.32.233
19 2026-08-13 02:45 639221859270235608
2033 ms 173.245.58.233
18 2026-08-13 02:30 639221850184464515
17 ms 172.64.32.233
17 2026-08-13 02:30 639221850184464515
17 ms 108.162.192.233
16 2026-08-13 02:30 639221850184464515
17 ms 173.245.58.233
15 2026-08-13 02:15 639221841141973425
4023 ms 172.64.32.233
14 2026-08-13 02:15 639221841141973425
4023 ms 108.162.192.233
13 2026-08-13 02:15 639221841141973425
4023 ms 173.245.58.233
12 2026-08-13 01:24 639221810548753083
7 ms 108.162.192.233
11 2026-08-13 01:24 639221810548753083
7 ms 173.245.58.233
10 2026-08-13 01:24 639221810548753083
7 ms 172.64.32.233
9 2026-08-13 01:09 639221801656796262
18 ms 108.162.192.233
8 2026-08-13 01:09 639221801656796262
18 ms 173.245.58.233
7 2026-08-13 01:09 639221801656796262
18 ms 172.64.32.233
6 2026-08-13 00:54 639221792658715334
3 ms 108.162.192.233
5 2026-08-13 00:54 639221792658715334
3 ms 172.64.32.233
4 2026-08-13 00:54 639221792658715334
3 ms 173.245.58.233
3 2026-08-13 00:39 639221783571379176
35 ms 173.245.58.233
2 2026-08-13 00:39 639221783571379176
35 ms 108.162.192.233
1 2026-08-13 00:39 639221783571379176
35 ms 172.64.32.233