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 2026-08-20. For this date, NameServerHistory found 169 DNS check records, 168 successful responses, 1 failed responses, and 164 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

169

Historical checks stored for this nameserver on selected date

Average Latency

164 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-20 23:58

All timestamps shown in UTC

Latest Resolved IP on Selected Date

108.162.192.233

Most recently resolved hosting IP on selected date

Successful Responses

168

Checks that returned a measurable response

Failed Responses

1

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 2026-08-20 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
169 2026-08-20 23:58 639228670775860800
57 ms 108.162.192.233
168 2026-08-20 23:58 639228670775860800
57 ms 172.64.32.233
167 2026-08-20 23:58 639228670775860800
57 ms 173.245.58.233
166 2026-08-20 23:07 639228639850033448
8 ms 108.162.192.233
165 2026-08-20 23:07 639228639850033448
8 ms 172.64.32.233
164 2026-08-20 23:07 639228639850033448
8 ms 173.245.58.233
163 2026-08-20 22:51 639228630204271870
11 ms 108.162.192.233
162 2026-08-20 22:51 639228630204271870
11 ms 172.64.32.233
161 2026-08-20 22:51 639228630204271870
11 ms 173.245.58.233
160 2026-08-20 22:34 639228620295091135
44 ms 172.64.32.233
159 2026-08-20 22:34 639228620295091135
44 ms 173.245.58.233
158 2026-08-20 22:34 639228620295091135
44 ms 108.162.192.233
157 2026-08-20 22:18 639228610298336915
6 ms 108.162.192.233
156 2026-08-20 22:18 639228610298336915
6 ms 172.64.32.233
155 2026-08-20 22:18 639228610298336915
6 ms 173.245.58.233
154 2026-08-20 21:25 639228578917047616
10 ms 108.162.192.233
153 2026-08-20 21:25 639228578917047616
10 ms 172.64.32.233
152 2026-08-20 21:25 639228578917047616
10 ms 173.245.58.233
151 2026-08-20 21:09 639228569046445709
39 ms 172.64.32.233
150 2026-08-20 21:09 639228569046445709
39 ms 108.162.192.233
149 2026-08-20 21:09 639228569046445709
39 ms 173.245.58.233
148 2026-08-20 20:52 639228558946830986
9 ms 108.162.192.233
147 2026-08-20 20:52 639228558946830986
9 ms 173.245.58.233
146 2026-08-20 20:52 639228558946830986
9 ms 172.64.32.233
145 2026-08-20 20:35 639228548977359217
2062 ms 173.245.58.233
144 2026-08-20 20:35 639228548977359217
2062 ms 172.64.32.233
143 2026-08-20 20:35 639228548977359217
2062 ms 108.162.192.233
142 2026-08-20 19:43 639228517494157668
30 ms 108.162.192.233
141 2026-08-20 19:43 639228517494157668
30 ms 173.245.58.233
140 2026-08-20 19:43 639228517494157668
30 ms 172.64.32.233
139 2026-08-20 19:26 639228507374116892
4 ms 108.162.192.233
138 2026-08-20 19:26 639228507374116892
4 ms 172.64.32.233
137 2026-08-20 19:26 639228507374116892
4 ms 173.245.58.233
136 2026-08-20 19:09 639228497315154893
3 ms 108.162.192.233
135 2026-08-20 19:09 639228497315154893
3 ms 172.64.32.233
134 2026-08-20 19:09 639228497315154893
3 ms 173.245.58.233
133 2026-08-20 18:53 639228487287648341
48 ms 108.162.192.233
132 2026-08-20 18:53 639228487287648341
48 ms 172.64.32.233
131 2026-08-20 18:53 639228487287648341
48 ms 173.245.58.233
130 2026-08-20 18:00 639228455828123788
5 ms 108.162.192.233
129 2026-08-20 18:00 639228455828123788
5 ms 172.64.32.233
128 2026-08-20 18:00 639228455828123788
5 ms 173.245.58.233
127 2026-08-20 17:44 639228445900082244
5 ms 108.162.192.233
126 2026-08-20 17:44 639228445900082244
5 ms 172.64.32.233
125 2026-08-20 17:44 639228445900082244
5 ms 173.245.58.233
124 2026-08-20 17:27 639228435866352323
8 ms 172.64.32.233
123 2026-08-20 17:27 639228435866352323
8 ms 173.245.58.233
122 2026-08-20 17:27 639228435866352323
8 ms 108.162.192.233
121 2026-08-20 17:10 639228425802273151
5 ms 108.162.192.233
120 2026-08-20 17:10 639228425802273151
5 ms 172.64.32.233
119 2026-08-20 17:10 639228425802273151
5 ms 173.245.58.233
118 2026-08-20 16:16 639228393616324230
20 ms 173.245.58.233
117 2026-08-20 16:16 639228393616324230
20 ms 108.162.192.233
116 2026-08-20 16:16 639228393616324230
20 ms 172.64.32.233
115 2026-08-20 16:00 639228383590408693
14 ms 108.162.192.233
114 2026-08-20 16:00 639228383590408693
14 ms 172.64.32.233
113 2026-08-20 16:00 639228383590408693
14 ms 173.245.58.233
112 2026-08-20 15:43 639228373471467474
21 ms 108.162.192.233
111 2026-08-20 15:43 639228373471467474
21 ms 172.64.32.233
110 2026-08-20 15:43 639228373471467474
21 ms 173.245.58.233
109 2026-08-20 15:26 639228363426647311
8 ms 108.162.192.233
108 2026-08-20 15:26 639228363426647311
8 ms 172.64.32.233
107 2026-08-20 15:26 639228363426647311
8 ms 173.245.58.233
106 2026-08-20 14:33 639228331681701910
13 ms 173.245.58.233
105 2026-08-20 14:33 639228331681701910
13 ms 108.162.192.233
104 2026-08-20 14:33 639228331681701910
13 ms 172.64.32.233
103 2026-08-20 14:17 639228321714746824
5 ms 108.162.192.233
102 2026-08-20 14:17 639228321714746824
5 ms 172.64.32.233
101 2026-08-20 14:17 639228321714746824
5 ms 173.245.58.233
100 2026-08-20 14:00 639228311652090262
-
99 2026-08-20 13:43 639228301670088587
10 ms 172.64.32.233
98 2026-08-20 13:43 639228301670088587
10 ms 108.162.192.233
97 2026-08-20 13:43 639228301670088587
10 ms 173.245.58.233
96 2026-08-20 12:51 639228269987976710
4023 ms 108.162.192.233
95 2026-08-20 12:51 639228269987976710
4023 ms 172.64.32.233
94 2026-08-20 12:51 639228269987976710
4023 ms 173.245.58.233
93 2026-08-20 12:34 639228260009452308
27 ms 172.64.32.233
92 2026-08-20 12:34 639228260009452308
27 ms 108.162.192.233
91 2026-08-20 12:34 639228260009452308
27 ms 173.245.58.233
90 2026-08-20 12:17 639228249661740894
6 ms 108.162.192.233
89 2026-08-20 12:17 639228249661740894
6 ms 172.64.32.233
88 2026-08-20 12:17 639228249661740894
6 ms 173.245.58.233
87 2026-08-20 12:00 639228239552680346
42 ms 172.64.32.233
86 2026-08-20 12:00 639228239552680346
42 ms 173.245.58.233
85 2026-08-20 12:00 639228239552680346
42 ms 108.162.192.233
84 2026-08-20 11:07 639228207667580819
5 ms 108.162.192.233
83 2026-08-20 11:07 639228207667580819
5 ms 172.64.32.233
82 2026-08-20 11:07 639228207667580819
5 ms 173.245.58.233
81 2026-08-20 10:50 639228197494011560
6 ms 108.162.192.233
80 2026-08-20 10:50 639228197494011560
6 ms 172.64.32.233
79 2026-08-20 10:50 639228197494011560
6 ms 173.245.58.233
78 2026-08-20 10:33 639228187497039939
13 ms 173.245.58.233
77 2026-08-20 10:33 639228187497039939
13 ms 172.64.32.233
76 2026-08-20 10:33 639228187497039939
13 ms 108.162.192.233
75 2026-08-20 10:16 639228177408432646
49 ms 108.162.192.233
74 2026-08-20 10:16 639228177408432646
49 ms 173.245.58.233
73 2026-08-20 10:16 639228177408432646
49 ms 172.64.32.233
72 2026-08-20 09:24 639228146356166262
4 ms 108.162.192.233
71 2026-08-20 09:24 639228146356166262
4 ms 172.64.32.233
70 2026-08-20 09:24 639228146356166262
4 ms 173.245.58.233
69 2026-08-20 09:08 639228136541505712
8 ms 108.162.192.233
68 2026-08-20 09:08 639228136541505712
8 ms 172.64.32.233
67 2026-08-20 09:08 639228136541505712
8 ms 173.245.58.233
66 2026-08-20 08:51 639228126519136598
25 ms 108.162.192.233
65 2026-08-20 08:51 639228126519136598
25 ms 173.245.58.233
64 2026-08-20 08:51 639228126519136598
25 ms 172.64.32.233
63 2026-08-20 08:35 639228116537148885
10 ms 108.162.192.233
62 2026-08-20 08:35 639228116537148885
10 ms 172.64.32.233
61 2026-08-20 08:35 639228116537148885
10 ms 173.245.58.233
60 2026-08-20 07:43 639228085320764351
38 ms 172.64.32.233
59 2026-08-20 07:43 639228085320764351
38 ms 173.245.58.233
58 2026-08-20 07:43 639228085320764351
38 ms 108.162.192.233
57 2026-08-20 07:26 639228075444604839
3 ms 108.162.192.233
56 2026-08-20 07:26 639228075444604839
3 ms 172.64.32.233
55 2026-08-20 07:26 639228075444604839
3 ms 173.245.58.233
54 2026-08-20 07:10 639228065615498985
93 ms 172.64.32.233
53 2026-08-20 07:10 639228065615498985
93 ms 173.245.58.233
52 2026-08-20 07:10 639228065615498985
93 ms 108.162.192.233
51 2026-08-20 06:53 639228055675321422
9 ms 108.162.192.233
50 2026-08-20 06:53 639228055675321422
9 ms 172.64.32.233
49 2026-08-20 06:53 639228055675321422
9 ms 173.245.58.233
48 2026-08-20 06:01 639228024230839396
6 ms 108.162.192.233
47 2026-08-20 06:01 639228024230839396
6 ms 172.64.32.233
46 2026-08-20 06:01 639228024230839396
6 ms 173.245.58.233
45 2026-08-20 05:45 639228014720406505
52 ms 172.64.32.233
44 2026-08-20 05:45 639228014720406505
52 ms 173.245.58.233
43 2026-08-20 05:45 639228014720406505
52 ms 108.162.192.233
42 2026-08-20 05:29 639228004930827030
39 ms 108.162.192.233
41 2026-08-20 05:29 639228004930827030
39 ms 173.245.58.233
40 2026-08-20 05:29 639228004930827030
39 ms 172.64.32.233
39 2026-08-20 05:12 639227995103340154
28 ms 108.162.192.233
38 2026-08-20 05:12 639227995103340154
28 ms 172.64.32.233
37 2026-08-20 05:12 639227995103340154
28 ms 173.245.58.233
36 2026-08-20 04:20 639227963811374894
4 ms 108.162.192.233
35 2026-08-20 04:20 639227963811374894
4 ms 172.64.32.233
34 2026-08-20 04:20 639227963811374894
4 ms 173.245.58.233
33 2026-08-20 04:04 639227954132571365
2012 ms 172.64.32.233
32 2026-08-20 04:04 639227954132571365
2012 ms 108.162.192.233
31 2026-08-20 04:04 639227954132571365
2012 ms 173.245.58.233
30 2026-08-20 03:48 639227944541208342
11 ms 108.162.192.233
29 2026-08-20 03:48 639227944541208342
11 ms 172.64.32.233
28 2026-08-20 03:48 639227944541208342
11 ms 173.245.58.233
27 2026-08-20 03:32 639227934657213484
31 ms 108.162.192.233
26 2026-08-20 03:32 639227934657213484
31 ms 172.64.32.233
25 2026-08-20 03:32 639227934657213484
31 ms 173.245.58.233
24 2026-08-20 02:40 639227903628145469
4 ms 108.162.192.233
23 2026-08-20 02:40 639227903628145469
4 ms 172.64.32.233
22 2026-08-20 02:40 639227903628145469
4 ms 173.245.58.233
21 2026-08-20 02:24 639227893995483475
36 ms 172.64.32.233
20 2026-08-20 02:24 639227893995483475
36 ms 173.245.58.233
19 2026-08-20 02:24 639227893995483475
36 ms 108.162.192.233
18 2026-08-20 02:08 639227884280244209
3 ms 108.162.192.233
17 2026-08-20 02:08 639227884280244209
3 ms 172.64.32.233
16 2026-08-20 02:08 639227884280244209
3 ms 173.245.58.233
15 2026-08-20 01:51 639227874371147132
16 ms 172.64.32.233
14 2026-08-20 01:51 639227874371147132
16 ms 108.162.192.233
13 2026-08-20 01:51 639227874371147132
16 ms 173.245.58.233
12 2026-08-20 00:59 639227843224256432
10 ms 108.162.192.233
11 2026-08-20 00:59 639227843224256432
10 ms 172.64.32.233
10 2026-08-20 00:59 639227843224256432
10 ms 173.245.58.233
9 2026-08-20 00:43 639227833720403506
40 ms 108.162.192.233
8 2026-08-20 00:43 639227833720403506
40 ms 173.245.58.233
7 2026-08-20 00:43 639227833720403506
40 ms 172.64.32.233
6 2026-08-20 00:27 639227824170728278
25 ms 108.162.192.233
5 2026-08-20 00:27 639227824170728278
25 ms 172.64.32.233
4 2026-08-20 00:27 639227824170728278
25 ms 173.245.58.233
3 2026-08-20 00:12 639227814865867570
40 ms 108.162.192.233
2 2026-08-20 00:12 639227814865867570
40 ms 172.64.32.233
1 2026-08-20 00:12 639227814865867570
40 ms 173.245.58.233