DNS response history for a.dnscstr.com

a.dnscstr.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 2026-08-21. For this date, NameServerHistory found 73 DNS check records, 73 successful responses, 0 failed responses, and 191 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 a.dnscstr.com.
Records on Selected Date

73

Historical checks stored for this nameserver on selected date

Average Latency

191 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-21 23:52

All timestamps shown in UTC

Latest Resolved IP on Selected Date

138.197.216.192

Most recently resolved hosting IP on selected date

Successful Responses

73

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 a.dnscstr.com

Showing DNS history for 2026-08-21 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
73 2026-08-21 23:52 639229527598660841
228 ms 138.197.216.192
72 2026-08-21 23:37 639229517954323214
33 ms 138.197.216.192
71 2026-08-21 23:20 639229508269999021
32 ms 138.197.216.192
70 2026-08-21 23:04 639229498559060171
22 ms 138.197.216.192
69 2026-08-21 22:48 639229488519347586
2190 ms 138.197.216.192
68 2026-08-21 21:54 639229456606578934
30 ms 138.197.216.192
67 2026-08-21 21:38 639229446985772499
37 ms 138.197.216.192
66 2026-08-21 21:22 639229437367313098
51 ms 138.197.216.192
65 2026-08-21 21:06 639229427923950391
85 ms 138.197.216.192
64 2026-08-21 20:50 639229418168588854
52 ms 138.197.216.192
63 2026-08-21 20:34 639229408345678334
179 ms 138.197.216.192
62 2026-08-21 20:17 639229398616354648
47 ms 138.197.216.192
61 2026-08-21 20:01 639229388634592323
163 ms 138.197.216.192
60 2026-08-21 19:45 639229378792837692
109 ms 138.197.216.192
59 2026-08-21 19:28 639229369154682311
121 ms 138.197.216.192
58 2026-08-21 19:12 639229359248017926
2098 ms 138.197.216.192
57 2026-08-21 18:55 639229349124294642
4026 ms 138.197.216.192
56 2026-08-21 18:03 639229317791715692
46 ms 138.197.216.192
55 2026-08-21 17:47 639229308115194575
38 ms 138.197.216.192
54 2026-08-21 17:30 639229298320320558
46 ms 138.197.216.192
53 2026-08-21 17:14 639229288674863221
232 ms 138.197.216.192
52 2026-08-21 16:58 639229278983677079
26 ms 138.197.216.192
51 2026-08-21 16:42 639229269405517175
56 ms 138.197.216.192
50 2026-08-21 16:26 639229259594798244
35 ms 138.197.216.192
49 2026-08-21 16:09 639229249736681188
204 ms 138.197.216.192
48 2026-08-21 15:53 639229239699417787
44 ms 138.197.216.192
47 2026-08-21 15:36 639229229621964033
36 ms 138.197.216.192
46 2026-08-21 15:19 639229219567270965
21 ms 138.197.216.192
45 2026-08-21 15:02 639229209406666856
133 ms 138.197.216.192
44 2026-08-21 14:10 639229177815876178
32 ms 138.197.216.192
43 2026-08-21 13:53 639229168243572685
50 ms 138.197.216.192
42 2026-08-21 13:37 639229158599856475
181 ms 138.197.216.192
41 2026-08-21 13:21 639229148998940902
62 ms 138.197.216.192
40 2026-08-21 13:05 639229139276923594
26 ms 138.197.216.192
39 2026-08-21 12:49 639229129709912394
37 ms 138.197.216.192
38 2026-08-21 12:33 639229119801488500
169 ms 138.197.216.192
37 2026-08-21 12:17 639229110135262458
31 ms 138.197.216.192
36 2026-08-21 12:00 639229100336051392
101 ms 138.197.216.192
35 2026-08-21 11:44 639229090641415626
59 ms 138.197.216.192
34 2026-08-21 11:28 639229080702683947
34 ms 138.197.216.192
33 2026-08-21 11:11 639229070601456699
34 ms 138.197.216.192
32 2026-08-21 10:18 639229038947447232
29 ms 138.197.216.192
31 2026-08-21 10:02 639229029268708773
54 ms 138.197.216.192
30 2026-08-21 09:46 639229019647910603
60 ms 138.197.216.192
29 2026-08-21 09:30 639229009983843738
38 ms 138.197.216.192
28 2026-08-21 09:14 639229000203331882
63 ms 138.197.216.192
27 2026-08-21 08:57 639228990302335999
42 ms 138.197.216.192
26 2026-08-21 08:41 639228980567740722
44 ms 138.197.216.192
25 2026-08-21 08:24 639228970762445174
171 ms 138.197.216.192
24 2026-08-21 08:08 639228961065054445
32 ms 138.197.216.192
23 2026-08-21 07:52 639228951224649885
46 ms 138.197.216.192
22 2026-08-21 07:35 639228941303864592
38 ms 138.197.216.192
21 2026-08-21 07:18 639228931191328583
101 ms 138.197.216.192
20 2026-08-21 06:26 639228899518173317
24 ms 138.197.216.192
19 2026-08-21 06:09 639228889785027669
197 ms 138.197.216.192
18 2026-08-21 05:53 639228880106330161
28 ms 138.197.216.192
17 2026-08-21 05:37 639228870316184091
67 ms 138.197.216.192
16 2026-08-21 05:21 639228860695366512
126 ms 138.197.216.192
15 2026-08-21 05:05 639228851027209500
65 ms 138.197.216.192
14 2026-08-21 04:49 639228841479265462
77 ms 138.197.216.192
13 2026-08-21 04:33 639228831752962260
97 ms 138.197.216.192
12 2026-08-21 04:17 639228821953295483
44 ms 138.197.216.192
11 2026-08-21 04:00 639228812227429953
181 ms 138.197.216.192
10 2026-08-21 03:44 639228802476107538
175 ms 138.197.216.192
9 2026-08-21 03:27 639228792525492032
70 ms 138.197.216.192
8 2026-08-21 02:35 639228761131421385
34 ms 138.197.216.192
7 2026-08-21 02:19 639228751571206692
30 ms 138.197.216.192
6 2026-08-21 02:03 639228741705571019
115 ms 138.197.216.192
5 2026-08-21 01:46 639228731642208228
38 ms 138.197.216.192
4 2026-08-21 00:54 639228700387002072
53 ms 138.197.216.192
3 2026-08-21 00:38 639228690742014433
223 ms 138.197.216.192
2 2026-08-21 00:21 639228680877937122
193 ms 138.197.216.192
1 2026-08-21 00:04 639228670775860800
162 ms 138.197.216.192