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 2026-08-16. For this date, NameServerHistory found 178 DNS check records, 177 successful responses, 1 failed responses, and 225 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

178

Historical checks stored for this nameserver on selected date

Average Latency

225 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-16 23:46

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

177

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 2026-08-16 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
178 2026-08-16 23:46 639225207490611656
3 ms 108.162.192.233
177 2026-08-16 23:46 639225207490611656
3 ms 172.64.32.233
176 2026-08-16 23:46 639225207490611656
3 ms 173.245.58.233
175 2026-08-16 23:31 639225198045815385
4 ms 108.162.192.233
174 2026-08-16 23:31 639225198045815385
4 ms 172.64.32.233
173 2026-08-16 23:31 639225198045815385
4 ms 173.245.58.233
172 2026-08-16 22:38 639225166825544741
39 ms 172.64.32.233
171 2026-08-16 22:38 639225166825544741
39 ms 108.162.192.233
170 2026-08-16 22:38 639225166825544741
39 ms 173.245.58.233
169 2026-08-16 22:23 639225157549461269
11 ms 108.162.192.233
168 2026-08-16 22:23 639225157549461269
11 ms 172.64.32.233
167 2026-08-16 22:23 639225157549461269
11 ms 173.245.58.233
166 2026-08-16 22:07 639225147914556308
64 ms 108.162.192.233
165 2026-08-16 22:07 639225147914556308
64 ms 172.64.32.233
164 2026-08-16 22:07 639225147914556308
64 ms 173.245.58.233
163 2026-08-16 21:51 639225138472322960
8 ms 108.162.192.233
162 2026-08-16 21:51 639225138472322960
8 ms 172.64.32.233
161 2026-08-16 21:51 639225138472322960
8 ms 173.245.58.233
160 2026-08-16 20:59 639225107211236826
5 ms 108.162.192.233
159 2026-08-16 20:59 639225107211236826
5 ms 172.64.32.233
158 2026-08-16 20:59 639225107211236826
5 ms 173.245.58.233
157 2026-08-16 20:43 639225097684457510
4 ms 108.162.192.233
156 2026-08-16 20:43 639225097684457510
4 ms 172.64.32.233
155 2026-08-16 20:43 639225097684457510
4 ms 173.245.58.233
154 2026-08-16 20:27 639225087942913396
26 ms 173.245.58.233
153 2026-08-16 20:27 639225087942913396
26 ms 108.162.192.233
152 2026-08-16 20:27 639225087942913396
26 ms 172.64.32.233
151 2026-08-16 20:11 639225078238684183
2061 ms 173.245.58.233
150 2026-08-16 20:11 639225078238684183
2061 ms 172.64.32.233
149 2026-08-16 20:11 639225078238684183
2061 ms 108.162.192.233
148 2026-08-16 19:19 639225046944151094
30 ms 108.162.192.233
147 2026-08-16 19:19 639225046944151094
30 ms 172.64.32.233
146 2026-08-16 19:19 639225046944151094
30 ms 173.245.58.233
145 2026-08-16 19:02 639225037234857231
9 ms 108.162.192.233
144 2026-08-16 19:02 639225037234857231
9 ms 173.245.58.233
143 2026-08-16 19:02 639225037234857231
9 ms 172.64.32.233
142 2026-08-16 18:46 639225027423459920
2049 ms 173.245.58.233
141 2026-08-16 18:46 639225027423459920
2049 ms 172.64.32.233
140 2026-08-16 18:46 639225027423459920
2049 ms 108.162.192.233
139 2026-08-16 18:30 639225017891613027
19 ms 173.245.58.233
138 2026-08-16 18:30 639225017891613027
19 ms 108.162.192.233
137 2026-08-16 18:30 639225017891613027
19 ms 172.64.32.233
136 2026-08-16 17:38 639224986298183527
31 ms 108.162.192.233
135 2026-08-16 17:38 639224986298183527
31 ms 173.245.58.233
134 2026-08-16 17:38 639224986298183527
31 ms 172.64.32.233
133 2026-08-16 17:22 639224976567107023
5 ms 108.162.192.233
132 2026-08-16 17:22 639224976567107023
5 ms 172.64.32.233
131 2026-08-16 17:22 639224976567107023
5 ms 173.245.58.233
130 2026-08-16 17:05 639224966709723386
42 ms 172.64.32.233
129 2026-08-16 17:05 639224966709723386
42 ms 108.162.192.233
128 2026-08-16 17:05 639224966709723386
42 ms 173.245.58.233
127 2026-08-16 16:49 639224957175756942
4 ms 108.162.192.233
126 2026-08-16 16:49 639224957175756942
4 ms 172.64.32.233
125 2026-08-16 16:49 639224957175756942
4 ms 173.245.58.233
124 2026-08-16 15:57 639224925782379869
15 ms 108.162.192.233
123 2026-08-16 15:57 639224925782379869
15 ms 172.64.32.233
122 2026-08-16 15:57 639224925782379869
15 ms 173.245.58.233
121 2026-08-16 15:41 639224916429532459
39 ms 108.162.192.233
120 2026-08-16 15:41 639224916429532459
39 ms 172.64.32.233
119 2026-08-16 15:41 639224916429532459
39 ms 173.245.58.233
118 2026-08-16 15:25 639224906878325623
3 ms 108.162.192.233
117 2026-08-16 15:25 639224906878325623
3 ms 172.64.32.233
116 2026-08-16 15:25 639224906878325623
3 ms 173.245.58.233
115 2026-08-16 15:09 639224897258974385
39 ms 108.162.192.233
114 2026-08-16 15:09 639224897258974385
39 ms 172.64.32.233
113 2026-08-16 15:09 639224897258974385
39 ms 173.245.58.233
112 2026-08-16 14:17 639224866169532828
4 ms 108.162.192.233
111 2026-08-16 14:17 639224866169532828
4 ms 172.64.32.233
110 2026-08-16 14:17 639224866169532828
4 ms 173.245.58.233
109 2026-08-16 14:01 639224856561831915
44 ms 173.245.58.233
108 2026-08-16 14:01 639224856561831915
44 ms 172.64.32.233
107 2026-08-16 14:01 639224856561831915
44 ms 108.162.192.233
106 2026-08-16 13:45 639224846830897794
76 ms 108.162.192.233
105 2026-08-16 13:45 639224846830897794
76 ms 172.64.32.233
104 2026-08-16 13:45 639224846830897794
76 ms 173.245.58.233
103 2026-08-16 13:29 639224836975863283
33 ms 173.245.58.233
102 2026-08-16 13:29 639224836975863283
33 ms 108.162.192.233
101 2026-08-16 13:29 639224836975863283
33 ms 172.64.32.233
100 2026-08-16 12:35 639224804985340946
33 ms 108.162.192.233
99 2026-08-16 12:35 639224804985340946
33 ms 172.64.32.233
98 2026-08-16 12:35 639224804985340946
33 ms 173.245.58.233
97 2026-08-16 12:20 639224795567782333
34 ms 108.162.192.233
96 2026-08-16 12:20 639224795567782333
34 ms 172.64.32.233
95 2026-08-16 12:20 639224795567782333
34 ms 173.245.58.233
94 2026-08-16 12:04 639224785914225250
2019 ms 108.162.192.233
93 2026-08-16 12:04 639224785914225250
2019 ms 173.245.58.233
92 2026-08-16 12:04 639224785914225250
2019 ms 172.64.32.233
91 2026-08-16 11:48 639224776383854998
66 ms 108.162.192.233
90 2026-08-16 11:48 639224776383854998
66 ms 172.64.32.233
89 2026-08-16 11:48 639224776383854998
66 ms 173.245.58.233
88 2026-08-16 10:54 639224744252113993
2019 ms 108.162.192.233
87 2026-08-16 10:54 639224744252113993
2019 ms 172.64.32.233
86 2026-08-16 10:54 639224744252113993
2019 ms 173.245.58.233
85 2026-08-16 10:37 639224734238905542
25 ms 108.162.192.233
84 2026-08-16 10:37 639224734238905542
25 ms 172.64.32.233
83 2026-08-16 10:37 639224734238905542
25 ms 173.245.58.233
82 2026-08-16 10:21 639224724335031221
40 ms 108.162.192.233
81 2026-08-16 10:21 639224724335031221
40 ms 173.245.58.233
80 2026-08-16 10:21 639224724335031221
40 ms 172.64.32.233
79 2026-08-16 10:04 639224714475244430
7 ms 108.162.192.233
78 2026-08-16 10:04 639224714475244430
7 ms 172.64.32.233
77 2026-08-16 10:04 639224714475244430
7 ms 173.245.58.233
76 2026-08-16 09:09 639224681063874153
37 ms 108.162.192.233
75 2026-08-16 09:09 639224681063874153
37 ms 172.64.32.233
74 2026-08-16 09:09 639224681063874153
37 ms 173.245.58.233
73 2026-08-16 08:52 639224671038956665
2033 ms 172.64.32.233
72 2026-08-16 08:52 639224671038956665
2033 ms 173.245.58.233
71 2026-08-16 08:52 639224671038956665
2033 ms 108.162.192.233
70 2026-08-16 08:36 639224661079806122
4 ms 108.162.192.233
69 2026-08-16 08:36 639224661079806122
4 ms 172.64.32.233
68 2026-08-16 08:36 639224661079806122
4 ms 173.245.58.233
67 2026-08-16 08:19 639224651169993038
16 ms 108.162.192.233
66 2026-08-16 08:19 639224651169993038
16 ms 172.64.32.233
65 2026-08-16 08:19 639224651169993038
16 ms 173.245.58.233
64 2026-08-16 07:25 639224618882283050
14 ms 108.162.192.233
63 2026-08-16 07:25 639224618882283050
14 ms 172.64.32.233
62 2026-08-16 07:25 639224618882283050
14 ms 173.245.58.233
61 2026-08-16 07:10 639224609519965372
19 ms 108.162.192.233
60 2026-08-16 07:10 639224609519965372
19 ms 173.245.58.233
59 2026-08-16 07:10 639224609519965372
19 ms 172.64.32.233
58 2026-08-16 06:54 639224599969658888
2012 ms 108.162.192.233
57 2026-08-16 06:54 639224599969658888
2012 ms 173.245.58.233
56 2026-08-16 06:54 639224599969658888
2012 ms 172.64.32.233
55 2026-08-16 06:38 639224590360343307
17 ms 108.162.192.233
54 2026-08-16 06:38 639224590360343307
17 ms 172.64.32.233
53 2026-08-16 06:38 639224590360343307
17 ms 173.245.58.233
52 2026-08-16 05:45 639224558901831832
4 ms 108.162.192.233
51 2026-08-16 05:45 639224558901831832
4 ms 172.64.32.233
50 2026-08-16 05:45 639224558901831832
4 ms 173.245.58.233
49 2026-08-16 05:30 639224549678210576
15 ms 173.245.58.233
48 2026-08-16 05:30 639224549678210576
15 ms 172.64.32.233
47 2026-08-16 05:30 639224549678210576
15 ms 108.162.192.233
46 2026-08-16 05:14 639224540433420642
27 ms 108.162.192.233
45 2026-08-16 05:14 639224540433420642
27 ms 173.245.58.233
44 2026-08-16 05:14 639224540433420642
27 ms 172.64.32.233
43 2026-08-16 04:59 639224531046032443
20 ms 173.245.58.233
42 2026-08-16 04:59 639224531046032443
20 ms 108.162.192.233
41 2026-08-16 04:59 639224531046032443
20 ms 172.64.32.233
40 2026-08-16 04:07 639224499638024410
12 ms 108.162.192.233
39 2026-08-16 04:07 639224499638024410
12 ms 172.64.32.233
38 2026-08-16 04:07 639224499638024410
12 ms 173.245.58.233
37 2026-08-16 03:51 639224490358783451
7 ms 108.162.192.233
36 2026-08-16 03:51 639224490358783451
7 ms 173.245.58.233
35 2026-08-16 03:51 639224490358783451
7 ms 172.64.32.233
34 2026-08-16 03:36 639224481111410545
5 ms 108.162.192.233
33 2026-08-16 03:36 639224481111410545
5 ms 172.64.32.233
32 2026-08-16 03:36 639224481111410545
5 ms 173.245.58.233
31 2026-08-16 03:20 639224471809153772
4 ms 108.162.192.233
30 2026-08-16 03:20 639224471809153772
4 ms 172.64.32.233
29 2026-08-16 03:20 639224471809153772
4 ms 173.245.58.233
28 2026-08-16 02:27 639224440124457324
4 ms 108.162.192.233
27 2026-08-16 02:27 639224440124457324
4 ms 172.64.32.233
26 2026-08-16 02:27 639224440124457324
4 ms 173.245.58.233
25 2026-08-16 02:12 639224430921105721
-
24 2026-08-16 01:56 639224421455433103
3 ms 108.162.192.233
23 2026-08-16 01:56 639224421455433103
3 ms 172.64.32.233
22 2026-08-16 01:56 639224421455433103
3 ms 173.245.58.233
21 2026-08-16 01:40 639224412089740331
10 ms 172.64.32.233
20 2026-08-16 01:40 639224412089740331
10 ms 108.162.192.233
19 2026-08-16 01:40 639224412089740331
10 ms 173.245.58.233
18 2026-08-16 01:26 639224403168392868
37 ms 108.162.192.233
17 2026-08-16 01:26 639224403168392868
37 ms 172.64.32.233
16 2026-08-16 01:26 639224403168392868
37 ms 173.245.58.233
15 2026-08-16 01:10 639224393856251387
39 ms 108.162.192.233
14 2026-08-16 01:10 639224393856251387
39 ms 172.64.32.233
13 2026-08-16 01:10 639224393856251387
39 ms 173.245.58.233
12 2026-08-16 00:55 639224384677141438
5 ms 108.162.192.233
11 2026-08-16 00:55 639224384677141438
5 ms 172.64.32.233
10 2026-08-16 00:55 639224384677141438
5 ms 173.245.58.233
9 2026-08-16 00:40 639224375597986398
4 ms 108.162.192.233
8 2026-08-16 00:40 639224375597986398
4 ms 172.64.32.233
7 2026-08-16 00:40 639224375597986398
4 ms 173.245.58.233
6 2026-08-16 00:24 639224366430296466
4 ms 108.162.192.233
5 2026-08-16 00:24 639224366430296466
4 ms 172.64.32.233
4 2026-08-16 00:24 639224366430296466
4 ms 173.245.58.233
3 2026-08-16 00:09 639224357218176789
3 ms 108.162.192.233
2 2026-08-16 00:09 639224357218176789
3 ms 172.64.32.233
1 2026-08-16 00:09 639224357218176789
3 ms 173.245.58.233