DNS response history for nsb.qcweb.org

nsb.qcweb.org 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 2026-08-23. For this date, NameServerHistory found 225 DNS check records, 225 successful responses, 0 failed responses, and 352 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 nsb.qcweb.org.
Records on Selected Date

225

Historical checks stored for this nameserver on selected date

Average Latency

352 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-23 23:55

All timestamps shown in UTC

Latest Resolved IP on Selected Date

172.233.50.75

Most recently resolved hosting IP on selected date

Successful Responses

225

Checks that returned a measurable response

Failed Responses

0

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 nsb.qcweb.org

Showing DNS history for 2026-08-23 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
225 2026-08-23 23:55 639231254406598736
3 ms 172.233.50.75
224 2026-08-23 23:55 639231254406598736
3 ms 172.104.238.151
223 2026-08-23 23:55 639231254406598736
3 ms 139.162.195.230
222 2026-08-23 23:39 639231244697865594
63 ms 172.233.50.75
221 2026-08-23 23:39 639231244697865594
63 ms 139.162.195.230
220 2026-08-23 23:39 639231244697865594
63 ms 172.104.238.151
219 2026-08-23 23:22 639231234893504693
49 ms 172.104.238.151
218 2026-08-23 23:22 639231234893504693
49 ms 172.233.50.75
217 2026-08-23 23:22 639231234893504693
49 ms 139.162.195.230
216 2026-08-23 23:06 639231225024549139
17 ms 139.162.195.230
215 2026-08-23 23:06 639231225024549139
17 ms 172.233.50.75
214 2026-08-23 23:06 639231225024549139
17 ms 172.104.238.151
213 2026-08-23 22:49 639231214931957622
23 ms 172.233.50.75
212 2026-08-23 22:49 639231214931957622
23 ms 139.162.195.230
211 2026-08-23 22:49 639231214931957622
23 ms 172.104.238.151
210 2026-08-23 22:32 639231204962010549
3 ms 139.162.195.230
209 2026-08-23 22:32 639231204962010549
3 ms 172.233.50.75
208 2026-08-23 22:32 639231204962010549
3 ms 172.104.238.151
207 2026-08-23 22:16 639231195170138463
23 ms 139.162.195.230
206 2026-08-23 22:16 639231195170138463
23 ms 172.233.50.75
205 2026-08-23 22:16 639231195170138463
23 ms 172.104.238.151
204 2026-08-23 22:00 639231185235020577
19 ms 139.162.195.230
203 2026-08-23 22:00 639231185235020577
19 ms 172.104.238.151
202 2026-08-23 22:00 639231185235020577
19 ms 172.233.50.75
201 2026-08-23 21:43 639231175558690075
46 ms 172.233.50.75
200 2026-08-23 21:43 639231175558690075
46 ms 139.162.195.230
199 2026-08-23 21:43 639231175558690075
46 ms 172.104.238.151
198 2026-08-23 21:27 639231165610444012
2042 ms 172.104.238.151
197 2026-08-23 21:27 639231165610444012
2042 ms 139.162.195.230
196 2026-08-23 21:27 639231165610444012
2042 ms 172.233.50.75
195 2026-08-23 20:34 639231133806425363
16 ms 172.233.50.75
194 2026-08-23 20:34 639231133806425363
16 ms 172.104.238.151
193 2026-08-23 20:34 639231133806425363
16 ms 139.162.195.230
192 2026-08-23 20:18 639231124203758023
1175 ms 172.104.238.151
191 2026-08-23 20:18 639231124203758023
1175 ms 139.162.195.230
190 2026-08-23 20:18 639231124203758023
1175 ms 172.233.50.75
189 2026-08-23 20:01 639231114428262706
17 ms 172.233.50.75
188 2026-08-23 20:01 639231114428262706
17 ms 172.104.238.151
187 2026-08-23 20:01 639231114428262706
17 ms 139.162.195.230
186 2026-08-23 19:45 639231104662480065
57 ms 172.233.50.75
185 2026-08-23 19:45 639231104662480065
57 ms 139.162.195.230
184 2026-08-23 19:45 639231104662480065
57 ms 172.104.238.151
183 2026-08-23 19:29 639231094840372018
3 ms 139.162.195.230
182 2026-08-23 19:29 639231094840372018
3 ms 172.104.238.151
181 2026-08-23 19:29 639231094840372018
3 ms 172.233.50.75
180 2026-08-23 19:12 639231085024583224
54 ms 139.162.195.230
179 2026-08-23 19:12 639231085024583224
54 ms 172.104.238.151
178 2026-08-23 19:12 639231085024583224
54 ms 172.233.50.75
177 2026-08-23 18:56 639231075257417427
1659 ms 172.104.238.151
176 2026-08-23 18:56 639231075257417427
1659 ms 139.162.195.230
175 2026-08-23 18:56 639231075257417427
1659 ms 172.233.50.75
174 2026-08-23 18:40 639231065516009503
22 ms 139.162.195.230
173 2026-08-23 18:40 639231065516009503
22 ms 172.233.50.75
172 2026-08-23 18:40 639231065516009503
22 ms 172.104.238.151
171 2026-08-23 18:24 639231055805348837
61 ms 172.233.50.75
170 2026-08-23 18:24 639231055805348837
61 ms 139.162.195.230
169 2026-08-23 18:24 639231055805348837
61 ms 172.104.238.151
168 2026-08-23 18:07 639231045980373765
34 ms 139.162.195.230
167 2026-08-23 18:07 639231045980373765
34 ms 172.104.238.151
166 2026-08-23 18:07 639231045980373765
34 ms 172.233.50.75
165 2026-08-23 17:51 639231035984577527
45 ms 172.233.50.75
164 2026-08-23 17:51 639231035984577527
45 ms 139.162.195.230
163 2026-08-23 17:51 639231035984577527
45 ms 172.104.238.151
162 2026-08-23 17:34 639231025928115303
2057 ms 172.104.238.151
161 2026-08-23 17:34 639231025928115303
2057 ms 172.233.50.75
160 2026-08-23 17:34 639231025928115303
2057 ms 139.162.195.230
159 2026-08-23 16:41 639230994250157583
20 ms 172.233.50.75
158 2026-08-23 16:41 639230994250157583
20 ms 139.162.195.230
157 2026-08-23 16:41 639230994250157583
20 ms 172.104.238.151
156 2026-08-23 16:25 639230984476411369
16 ms 139.162.195.230
155 2026-08-23 16:25 639230984476411369
16 ms 172.104.238.151
154 2026-08-23 16:25 639230984476411369
16 ms 172.233.50.75
153 2026-08-23 16:09 639230974838373450
34 ms 172.233.50.75
152 2026-08-23 16:09 639230974838373450
34 ms 172.104.238.151
151 2026-08-23 16:09 639230974838373450
34 ms 139.162.195.230
150 2026-08-23 15:53 639230965244277645
34 ms 172.233.50.75
149 2026-08-23 15:53 639230965244277645
34 ms 172.104.238.151
148 2026-08-23 15:53 639230965244277645
34 ms 139.162.195.230
147 2026-08-23 15:37 639230955522101820
2022 ms 172.104.238.151
146 2026-08-23 15:37 639230955522101820
2022 ms 172.233.50.75
145 2026-08-23 15:37 639230955522101820
2022 ms 139.162.195.230
144 2026-08-23 15:20 639230945754521603
2683 ms 172.104.238.151
143 2026-08-23 15:20 639230945754521603
2683 ms 172.233.50.75
142 2026-08-23 15:20 639230945754521603
2683 ms 139.162.195.230
141 2026-08-23 15:04 639230935852040504
2006 ms 139.162.195.230
140 2026-08-23 15:04 639230935852040504
2006 ms 172.104.238.151
139 2026-08-23 15:04 639230935852040504
2006 ms 172.233.50.75
138 2026-08-23 14:47 639230926222061048
18 ms 172.233.50.75
137 2026-08-23 14:47 639230926222061048
18 ms 139.162.195.230
136 2026-08-23 14:47 639230926222061048
18 ms 172.104.238.151
135 2026-08-23 14:31 639230916449726907
456 ms 172.233.50.75
134 2026-08-23 14:31 639230916449726907
456 ms 172.104.238.151
133 2026-08-23 14:31 639230916449726907
456 ms 139.162.195.230
132 2026-08-23 14:15 639230906595053086
3 ms 172.233.50.75
131 2026-08-23 14:15 639230906595053086
3 ms 139.162.195.230
130 2026-08-23 14:15 639230906595053086
3 ms 172.104.238.151
129 2026-08-23 13:58 639230896680429441
46 ms 172.104.238.151
128 2026-08-23 13:58 639230896680429441
46 ms 172.233.50.75
127 2026-08-23 13:58 639230896680429441
46 ms 139.162.195.230
126 2026-08-23 13:42 639230886630210965
46 ms 172.233.50.75
125 2026-08-23 13:42 639230886630210965
46 ms 172.104.238.151
124 2026-08-23 13:42 639230886630210965
46 ms 139.162.195.230
123 2026-08-23 12:50 639230855430405719
299 ms 172.233.50.75
122 2026-08-23 12:50 639230855430405719
299 ms 139.162.195.230
121 2026-08-23 12:50 639230855430405719
299 ms 172.104.238.151
120 2026-08-23 12:34 639230845707499136
7 ms 172.233.50.75
119 2026-08-23 12:34 639230845707499136
7 ms 139.162.195.230
118 2026-08-23 12:34 639230845707499136
7 ms 172.104.238.151
117 2026-08-23 12:17 639230836186805419
467 ms 172.233.50.75
116 2026-08-23 12:17 639230836186805419
467 ms 172.104.238.151
115 2026-08-23 12:17 639230836186805419
467 ms 139.162.195.230
114 2026-08-23 12:01 639230826493828316
9 ms 172.233.50.75
113 2026-08-23 12:01 639230826493828316
9 ms 139.162.195.230
112 2026-08-23 12:01 639230826493828316
9 ms 172.104.238.151
111 2026-08-23 11:45 639230816817882996
1660 ms 172.233.50.75
110 2026-08-23 11:45 639230816817882996
1660 ms 139.162.195.230
109 2026-08-23 11:45 639230816817882996
1660 ms 172.104.238.151
108 2026-08-23 11:29 639230806933854189
18 ms 172.233.50.75
107 2026-08-23 11:29 639230806933854189
18 ms 172.104.238.151
106 2026-08-23 11:29 639230806933854189
18 ms 139.162.195.230
105 2026-08-23 11:12 639230797120243854
14 ms 172.104.238.151
104 2026-08-23 11:12 639230797120243854
14 ms 172.233.50.75
103 2026-08-23 11:12 639230797120243854
14 ms 139.162.195.230
102 2026-08-23 10:56 639230787310272840
12 ms 139.162.195.230
101 2026-08-23 10:56 639230787310272840
12 ms 172.104.238.151
100 2026-08-23 10:56 639230787310272840
12 ms 172.233.50.75
99 2026-08-23 10:40 639230777600173142
13 ms 139.162.195.230
98 2026-08-23 10:40 639230777600173142
13 ms 172.104.238.151
97 2026-08-23 10:40 639230777600173142
13 ms 172.233.50.75
96 2026-08-23 10:24 639230767665024593
160 ms 172.233.50.75
95 2026-08-23 10:24 639230767665024593
160 ms 172.104.238.151
94 2026-08-23 10:24 639230767665024593
160 ms 139.162.195.230
93 2026-08-23 10:07 639230757720962293
36 ms 172.104.238.151
92 2026-08-23 10:07 639230757720962293
36 ms 172.233.50.75
91 2026-08-23 10:07 639230757720962293
36 ms 139.162.195.230
90 2026-08-23 09:50 639230747722189784
46 ms 172.233.50.75
89 2026-08-23 09:50 639230747722189784
46 ms 172.104.238.151
88 2026-08-23 09:50 639230747722189784
46 ms 139.162.195.230
87 2026-08-23 08:58 639230716313923480
2157 ms 172.233.50.75
86 2026-08-23 08:58 639230716313923480
2157 ms 139.162.195.230
85 2026-08-23 08:58 639230716313923480
2157 ms 172.104.238.151
84 2026-08-23 08:42 639230706813835990
51 ms 172.233.50.75
83 2026-08-23 08:42 639230706813835990
51 ms 139.162.195.230
82 2026-08-23 08:42 639230706813835990
51 ms 172.104.238.151
81 2026-08-23 08:26 639230696871062203
165 ms 172.233.50.75
80 2026-08-23 08:26 639230696871062203
165 ms 172.104.238.151
79 2026-08-23 08:26 639230696871062203
165 ms 139.162.195.230
78 2026-08-23 08:09 639230687142781616
5 ms 172.104.238.151
77 2026-08-23 08:09 639230687142781616
5 ms 139.162.195.230
76 2026-08-23 08:09 639230687142781616
5 ms 172.233.50.75
75 2026-08-23 07:53 639230677432142227
1795 ms 172.233.50.75
74 2026-08-23 07:53 639230677432142227
1795 ms 139.162.195.230
73 2026-08-23 07:53 639230677432142227
1795 ms 172.104.238.151
72 2026-08-23 07:37 639230667686258061
24 ms 139.162.195.230
71 2026-08-23 07:37 639230667686258061
24 ms 172.233.50.75
70 2026-08-23 07:37 639230667686258061
24 ms 172.104.238.151
69 2026-08-23 07:21 639230658039243685
2028 ms 139.162.195.230
68 2026-08-23 07:21 639230658039243685
2028 ms 172.104.238.151
67 2026-08-23 07:21 639230658039243685
2028 ms 172.233.50.75
66 2026-08-23 07:05 639230648468473803
3 ms 172.104.238.151
65 2026-08-23 07:05 639230648468473803
3 ms 172.233.50.75
64 2026-08-23 07:05 639230648468473803
3 ms 139.162.195.230
63 2026-08-23 06:49 639230638829658294
22 ms 139.162.195.230
62 2026-08-23 06:49 639230638829658294
22 ms 172.104.238.151
61 2026-08-23 06:49 639230638829658294
22 ms 172.233.50.75
60 2026-08-23 06:33 639230629247017617
34 ms 172.104.238.151
59 2026-08-23 06:33 639230629247017617
34 ms 172.233.50.75
58 2026-08-23 06:33 639230629247017617
34 ms 139.162.195.230
57 2026-08-23 06:16 639230619625318239
21 ms 172.104.238.151
56 2026-08-23 06:16 639230619625318239
21 ms 139.162.195.230
55 2026-08-23 06:16 639230619625318239
21 ms 172.233.50.75
54 2026-08-23 06:00 639230609697630264
175 ms 172.104.238.151
53 2026-08-23 06:00 639230609697630264
175 ms 172.233.50.75
52 2026-08-23 06:00 639230609697630264
175 ms 139.162.195.230
51 2026-08-23 05:08 639230578570131864
21 ms 172.233.50.75
50 2026-08-23 05:08 639230578570131864
21 ms 172.104.238.151
49 2026-08-23 05:08 639230578570131864
21 ms 139.162.195.230
48 2026-08-23 04:52 639230568958963168
64 ms 139.162.195.230
47 2026-08-23 04:52 639230568958963168
64 ms 172.233.50.75
46 2026-08-23 04:52 639230568958963168
64 ms 172.104.238.151
45 2026-08-23 04:36 639230559287611211
3 ms 139.162.195.230
44 2026-08-23 04:36 639230559287611211
3 ms 172.104.238.151
43 2026-08-23 04:36 639230559287611211
3 ms 172.233.50.75
42 2026-08-23 04:20 639230549524312030
1519 ms 139.162.195.230
41 2026-08-23 04:20 639230549524312030
1519 ms 172.104.238.151
40 2026-08-23 04:20 639230549524312030
1519 ms 172.233.50.75
39 2026-08-23 04:04 639230539739801669
3 ms 139.162.195.230
38 2026-08-23 04:04 639230539739801669
3 ms 172.104.238.151
37 2026-08-23 04:04 639230539739801669
3 ms 172.233.50.75
36 2026-08-23 03:47 639230530084069375
63 ms 172.104.238.151
35 2026-08-23 03:47 639230530084069375
63 ms 172.233.50.75
34 2026-08-23 03:47 639230530084069375
63 ms 139.162.195.230
33 2026-08-23 03:31 639230520362691441
2 ms 172.104.238.151
32 2026-08-23 03:31 639230520362691441
2 ms 139.162.195.230
31 2026-08-23 03:31 639230520362691441
2 ms 172.233.50.75
30 2026-08-23 03:15 639230510677194518
282 ms 139.162.195.230
29 2026-08-23 03:15 639230510677194518
282 ms 172.233.50.75
28 2026-08-23 03:15 639230510677194518
282 ms 172.104.238.151
27 2026-08-23 02:59 639230501156002646
23 ms 172.233.50.75
26 2026-08-23 02:59 639230501156002646
23 ms 139.162.195.230
25 2026-08-23 02:59 639230501156002646
23 ms 172.104.238.151
24 2026-08-23 02:43 639230491502198541
97 ms 139.162.195.230
23 2026-08-23 02:43 639230491502198541
97 ms 172.233.50.75
22 2026-08-23 02:43 639230491502198541
97 ms 172.104.238.151
21 2026-08-23 02:27 639230481860318494
46 ms 172.233.50.75
20 2026-08-23 02:27 639230481860318494
46 ms 172.104.238.151
19 2026-08-23 02:27 639230481860318494
46 ms 139.162.195.230
18 2026-08-23 02:11 639230471893008575
152 ms 139.162.195.230
17 2026-08-23 02:11 639230471893008575
152 ms 172.104.238.151
16 2026-08-23 02:11 639230471893008575
152 ms 172.233.50.75
15 2026-08-23 01:17 639230440030877421
18 ms 172.104.238.151
14 2026-08-23 01:17 639230440030877421
18 ms 172.233.50.75
13 2026-08-23 01:17 639230440030877421
18 ms 139.162.195.230
12 2026-08-23 01:01 639230430479725508
20 ms 139.162.195.230
11 2026-08-23 01:01 639230430479725508
20 ms 172.233.50.75
10 2026-08-23 01:01 639230430479725508
20 ms 172.104.238.151
9 2026-08-23 00:45 639230420875160219
17 ms 172.104.238.151
8 2026-08-23 00:45 639230420875160219
17 ms 172.233.50.75
7 2026-08-23 00:45 639230420875160219
17 ms 139.162.195.230
6 2026-08-23 00:29 639230411240692575
8 ms 172.104.238.151
5 2026-08-23 00:29 639230411240692575
8 ms 172.233.50.75
4 2026-08-23 00:29 639230411240692575
8 ms 139.162.195.230
3 2026-08-23 00:13 639230401550806607
3 ms 172.104.238.151
2 2026-08-23 00:13 639230401550806607
3 ms 172.233.50.75
1 2026-08-23 00:13 639230401550806607
3 ms 139.162.195.230