DNS response history for b.qtlcdncn.info

b.qtlcdncn.info 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 2026-08-26. For this date, NameServerHistory found 130 DNS check records, 130 successful responses, 0 failed responses, and 79 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 b.qtlcdncn.info.
Records on Selected Date

130

Historical checks stored for this nameserver on selected date

Average Latency

79 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 21:44

All timestamps shown in UTC

Latest Resolved IP on Selected Date

163.171.128.23

Most recently resolved hosting IP on selected date

Successful Responses

130

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 b.qtlcdncn.info

Showing DNS history for 2026-08-26 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
130 2026-08-26 21:44 639233773302621314
153 ms 163.171.128.23
129 2026-08-26 21:44 639233773302621314
153 ms 163.171.128.75
128 2026-08-26 21:27 639233762896723748
35 ms 163.171.128.75
127 2026-08-26 21:27 639233762896723748
35 ms 163.171.128.15
126 2026-08-26 21:09 639233752543876329
12 ms 163.171.128.23
125 2026-08-26 21:09 639233752543876329
12 ms 163.171.128.75
124 2026-08-26 20:52 639233742155931788
21 ms 163.171.128.75
123 2026-08-26 20:52 639233742155931788
21 ms 163.171.128.23
122 2026-08-26 20:35 639233731712555311
41 ms 163.171.128.15
121 2026-08-26 20:35 639233731712555311
41 ms 163.171.128.23
120 2026-08-26 20:17 639233721164051126
10 ms 163.171.128.15
119 2026-08-26 20:17 639233721164051126
10 ms 163.171.128.75
118 2026-08-26 20:00 639233710560486320
269 ms 163.171.128.23
117 2026-08-26 20:00 639233710560486320
269 ms 163.171.128.15
116 2026-08-26 19:42 639233699834667450
12 ms 163.171.128.75
115 2026-08-26 19:42 639233699834667450
12 ms 163.171.128.23
114 2026-08-26 18:47 639233667209186136
448 ms 163.171.128.15
113 2026-08-26 18:47 639233667209186136
448 ms 163.171.128.75
112 2026-08-26 18:30 639233656814316266
38 ms 163.171.128.23
111 2026-08-26 18:30 639233656814316266
38 ms 163.171.128.75
110 2026-08-26 18:12 639233646245051806
577 ms 163.171.128.15
109 2026-08-26 18:12 639233646245051806
577 ms 163.171.128.75
108 2026-08-26 17:55 639233635663779051
27 ms 163.171.128.15
107 2026-08-26 17:55 639233635663779051
27 ms 163.171.128.75
106 2026-08-26 17:37 639233624977342122
26 ms 163.171.128.23
105 2026-08-26 17:37 639233624977342122
26 ms 163.171.128.15
104 2026-08-26 17:19 639233614446136153
22 ms 163.171.128.15
103 2026-08-26 17:19 639233614446136153
22 ms 163.171.128.75
102 2026-08-26 17:01 639233603737877581
74 ms 163.171.128.23
101 2026-08-26 17:01 639233603737877581
74 ms 163.171.128.15
100 2026-08-26 16:44 639233593269224651
22 ms 163.171.128.23
99 2026-08-26 16:44 639233593269224651
22 ms 163.171.128.15
98 2026-08-26 16:26 639233582635086903
33 ms 163.171.128.15
97 2026-08-26 16:26 639233582635086903
33 ms 163.171.128.23
96 2026-08-26 16:09 639233572000374575
22 ms 163.171.128.15
95 2026-08-26 16:09 639233572000374575
22 ms 163.171.128.75
94 2026-08-26 15:51 639233561188633861
782 ms 163.171.128.15
93 2026-08-26 15:51 639233561188633861
782 ms 163.171.128.75
92 2026-08-26 15:33 639233550544357027
33 ms 163.171.128.15
91 2026-08-26 15:33 639233550544357027
33 ms 163.171.128.23
90 2026-08-26 14:39 639233517966053117
62 ms 163.171.128.75
89 2026-08-26 14:39 639233517966053117
62 ms 163.171.128.23
88 2026-08-26 14:21 639233507603253585
36 ms 163.171.128.75
87 2026-08-26 14:21 639233507603253585
36 ms 163.171.128.23
86 2026-08-26 14:04 639233497229039167
33 ms 163.171.128.23
85 2026-08-26 14:04 639233497229039167
33 ms 163.171.128.75
84 2026-08-26 13:47 639233486864546406
17 ms 163.171.128.15
83 2026-08-26 13:47 639233486864546406
17 ms 163.171.128.23
82 2026-08-26 13:29 639233476455174682
19 ms 163.171.128.15
81 2026-08-26 13:29 639233476455174682
19 ms 163.171.128.75
80 2026-08-26 13:12 639233466171592605
9 ms 163.171.128.75
79 2026-08-26 13:12 639233466171592605
9 ms 163.171.128.23
78 2026-08-26 12:55 639233455747096265
9 ms 163.171.128.15
77 2026-08-26 12:55 639233455747096265
9 ms 163.171.128.75
76 2026-08-26 12:38 639233445367152284
10 ms 163.171.128.75
75 2026-08-26 12:38 639233445367152284
10 ms 163.171.128.23
74 2026-08-26 12:20 639233434974187439
11 ms 163.171.128.75
73 2026-08-26 12:20 639233434974187439
11 ms 163.171.128.23
72 2026-08-26 12:03 639233424567558554
29 ms 163.171.128.75
71 2026-08-26 12:03 639233424567558554
29 ms 163.171.128.15
70 2026-08-26 11:45 639233414056832719
27 ms 163.171.128.75
69 2026-08-26 11:45 639233414056832719
27 ms 163.171.128.23
68 2026-08-26 11:28 639233403515141099
38 ms 163.171.147.57
67 2026-08-26 11:28 639233403515141099
38 ms 163.171.147.33
66 2026-08-26 10:33 639233370841350248
17 ms 163.171.128.23
65 2026-08-26 10:33 639233370841350248
17 ms 163.171.128.75
64 2026-08-26 10:16 639233360361507238
17 ms 163.171.128.15
63 2026-08-26 10:16 639233360361507238
17 ms 163.171.128.23
62 2026-08-26 09:59 639233350067824371
9 ms 163.171.128.23
61 2026-08-26 09:59 639233350067824371
9 ms 163.171.128.15
60 2026-08-26 09:41 639233339545274518
23 ms 163.171.128.75
59 2026-08-26 09:41 639233339545274518
23 ms 163.171.128.23
58 2026-08-26 09:24 639233329214918079
10 ms 163.171.128.75
57 2026-08-26 09:24 639233329214918079
10 ms 163.171.128.15
56 2026-08-26 09:07 639233318749762337
69 ms 163.171.147.65
55 2026-08-26 09:07 639233318749762337
69 ms 163.171.147.33
54 2026-08-26 08:49 639233308387917838
17 ms 163.171.128.23
53 2026-08-26 08:49 639233308387917838
17 ms 163.171.128.75
52 2026-08-26 08:32 639233297961740122
10 ms 163.171.128.15
51 2026-08-26 08:32 639233297961740122
10 ms 163.171.128.23
50 2026-08-26 08:15 639233287487159094
273 ms 163.171.128.23
49 2026-08-26 08:15 639233287487159094
273 ms 163.171.128.75
48 2026-08-26 07:57 639233276995531707
44 ms 163.171.145.151
47 2026-08-26 07:57 639233276995531707
44 ms 163.171.145.70
46 2026-08-26 07:40 639233266521568229
33 ms 163.171.128.75
45 2026-08-26 07:40 639233266521568229
33 ms 163.171.128.15
44 2026-08-26 07:22 639233256081047431
302 ms 163.171.128.75
43 2026-08-26 07:22 639233256081047431
302 ms 163.171.128.23
42 2026-08-26 06:28 639233223620132921
9 ms 163.171.128.75
41 2026-08-26 06:28 639233223620132921
9 ms 163.171.128.15
40 2026-08-26 06:11 639233213287814244
15 ms 163.171.128.15
39 2026-08-26 06:11 639233213287814244
15 ms 163.171.128.23
38 2026-08-26 05:54 639233202925983161
8 ms 163.171.128.75
37 2026-08-26 05:54 639233202925983161
8 ms 163.171.128.15
36 2026-08-26 05:36 639233192644780696
258 ms 163.171.128.23
35 2026-08-26 05:36 639233192644780696
258 ms 163.171.128.15
34 2026-08-26 05:19 639233182401183833
27 ms 163.171.128.75
33 2026-08-26 05:19 639233182401183833
27 ms 163.171.128.15
32 2026-08-26 05:02 639233172074181051
11 ms 163.171.128.15
31 2026-08-26 05:02 639233172074181051
11 ms 163.171.128.23
30 2026-08-26 04:45 639233161808421455
390 ms 163.171.128.15
29 2026-08-26 04:45 639233161808421455
390 ms 163.171.128.23
28 2026-08-26 04:28 639233151357344052
9 ms 163.171.128.23
27 2026-08-26 04:28 639233151357344052
9 ms 163.171.128.15
26 2026-08-26 04:10 639233141034116946
131 ms 163.171.145.70
25 2026-08-26 04:10 639233141034116946
131 ms 163.171.145.151
24 2026-08-26 03:53 639233130828334142
40 ms 163.171.128.15
23 2026-08-26 03:53 639233130828334142
40 ms 163.171.128.75
22 2026-08-26 03:36 639233120373450007
14 ms 163.171.128.75
21 2026-08-26 03:36 639233120373450007
14 ms 163.171.128.15
20 2026-08-26 03:19 639233110066216193
168 ms 163.171.145.70
19 2026-08-26 03:19 639233110066216193
168 ms 163.171.145.151
18 2026-08-26 02:25 639233078065410564
20 ms 163.171.128.15
17 2026-08-26 02:25 639233078065410564
20 ms 163.171.128.75
16 2026-08-26 02:08 639233067787457832
42 ms 163.171.147.33
15 2026-08-26 02:08 639233067787457832
42 ms 163.171.147.57
14 2026-08-26 01:51 639233057501801162
25 ms 163.171.128.23
13 2026-08-26 01:51 639233057501801162
25 ms 163.171.128.15
12 2026-08-26 01:34 639233047089431703
39 ms 163.171.128.75
11 2026-08-26 01:34 639233047089431703
39 ms 163.171.128.15
10 2026-08-26 01:17 639233036754790688
9 ms 163.171.128.23
9 2026-08-26 01:17 639233036754790688
9 ms 163.171.128.15
8 2026-08-26 00:59 639233026412602472
36 ms 163.171.128.75
7 2026-08-26 00:59 639233026412602472
36 ms 163.171.128.23
6 2026-08-26 00:42 639233016064066127
10 ms 163.171.128.23
5 2026-08-26 00:42 639233016064066127
10 ms 163.171.128.15
4 2026-08-26 00:25 639233005922655772
52 ms 163.171.145.70
3 2026-08-26 00:25 639233005922655772
52 ms 163.171.145.151
2 2026-08-26 00:08 639232995672256907
20 ms 163.171.128.23
1 2026-08-26 00:08 639232995672256907
20 ms 163.171.128.75