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 2026-08-17. For this date, NameServerHistory found 72 DNS check records, 71 successful responses, 1 failed responses, and 217 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

72

Historical checks stored for this nameserver on selected date

Average Latency

217 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-17 23:54

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

71

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 a.dnscstr.com

Showing DNS history for 2026-08-17 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
72 2026-08-17 23:54 639226072268080268
2137 ms 138.197.216.192
71 2026-08-17 23:37 639226062577647657
-
70 2026-08-17 22:45 639226031060857136
68 ms 138.197.216.192
69 2026-08-17 22:29 639226021535117364
138 ms 138.197.216.192
68 2026-08-17 22:13 639226011884237078
66 ms 138.197.216.192
67 2026-08-17 21:57 639226002309299142
103 ms 138.197.216.192
66 2026-08-17 21:41 639225992791784448
65 ms 138.197.216.192
65 2026-08-17 21:25 639225983045271390
100 ms 138.197.216.192
64 2026-08-17 21:09 639225973246293513
2026 ms 138.197.216.192
63 2026-08-17 20:52 639225963620186236
30 ms 138.197.216.192
62 2026-08-17 20:36 639225953899183916
69 ms 138.197.216.192
61 2026-08-17 20:20 639225944391528206
63 ms 138.197.216.192
60 2026-08-17 20:04 639225934593254169
33 ms 138.197.216.192
59 2026-08-17 19:48 639225924669984512
30 ms 138.197.216.192
58 2026-08-17 18:55 639225893048561320
70 ms 138.197.216.192
57 2026-08-17 18:39 639225883481298424
102 ms 138.197.216.192
56 2026-08-17 18:23 639225873845394034
122 ms 138.197.216.192
55 2026-08-17 18:07 639225864216078662
34 ms 138.197.216.192
54 2026-08-17 17:51 639225854541857773
112 ms 138.197.216.192
53 2026-08-17 17:34 639225844733604072
68 ms 138.197.216.192
52 2026-08-17 17:18 639225835085229232
32 ms 138.197.216.192
51 2026-08-17 17:02 639225825349373981
134 ms 138.197.216.192
50 2026-08-17 16:46 639225815690604161
58 ms 138.197.216.192
49 2026-08-17 16:30 639225805952472306
38 ms 138.197.216.192
48 2026-08-17 16:13 639225796264729638
171 ms 138.197.216.192
47 2026-08-17 15:57 639225786326499329
2099 ms 138.197.216.192
46 2026-08-17 15:04 639225754798130711
184 ms 138.197.216.192
45 2026-08-17 14:48 639225745123193922
189 ms 138.197.216.192
44 2026-08-17 14:32 639225735540597271
107 ms 138.197.216.192
43 2026-08-17 14:16 639225725894857396
44 ms 138.197.216.192
42 2026-08-17 14:00 639225716249606913
31 ms 138.197.216.192
41 2026-08-17 13:44 639225706638238179
13 ms 138.197.216.192
40 2026-08-17 13:28 639225696949691423
113 ms 138.197.216.192
39 2026-08-17 13:12 639225687286186336
83 ms 138.197.216.192
38 2026-08-17 12:56 639225677679573133
83 ms 138.197.216.192
37 2026-08-17 12:39 639225667957861024
39 ms 138.197.216.192
36 2026-08-17 12:23 639225658298791618
31 ms 138.197.216.192
35 2026-08-17 12:07 639225648583652785
170 ms 138.197.216.192
34 2026-08-17 11:15 639225617000524308
219 ms 138.197.216.192
33 2026-08-17 10:59 639225607668541600
10 ms 138.197.216.192
32 2026-08-17 10:43 639225598117279238
60 ms 138.197.216.192
31 2026-08-17 10:27 639225588751002710
2017 ms 138.197.216.192
30 2026-08-17 10:12 639225579295831051
129 ms 138.197.216.192
29 2026-08-17 09:56 639225569761469940
108 ms 138.197.216.192
28 2026-08-17 09:40 639225560161422333
26 ms 138.197.216.192
27 2026-08-17 09:24 639225550739955565
23 ms 138.197.216.192
26 2026-08-17 09:08 639225541125222426
59 ms 138.197.216.192
25 2026-08-17 08:52 639225531526675983
60 ms 138.197.216.192
24 2026-08-17 08:36 639225521915528222
27 ms 138.197.216.192
23 2026-08-17 08:20 639225512148151789
64 ms 138.197.216.192
22 2026-08-17 07:28 639225480786142412
31 ms 138.197.216.192
21 2026-08-17 07:12 639225471394348551
22 ms 138.197.216.192
20 2026-08-17 06:56 639225462031685068
111 ms 138.197.216.192
19 2026-08-17 06:41 639225452639458328
47 ms 138.197.216.192
18 2026-08-17 06:25 639225443300966543
35 ms 138.197.216.192
17 2026-08-17 06:09 639225433880499379
263 ms 138.197.216.192
16 2026-08-17 05:54 639225424395198277
37 ms 138.197.216.192
15 2026-08-17 05:38 639225414744137487
38 ms 138.197.216.192
14 2026-08-17 05:22 639225405186783164
2035 ms 138.197.216.192
13 2026-08-17 05:06 639225395563669822
174 ms 138.197.216.192
12 2026-08-17 04:49 639225386076645158
63 ms 138.197.216.192
11 2026-08-17 04:34 639225376620669704
120 ms 138.197.216.192
10 2026-08-17 03:42 639225345580892706
28 ms 138.197.216.192
9 2026-08-17 03:27 639225336207383710
75 ms 138.197.216.192
8 2026-08-17 03:11 639225326726565001
87 ms 138.197.216.192
7 2026-08-17 02:55 639225317249271010
42 ms 138.197.216.192
6 2026-08-17 02:03 639225286280886044
28 ms 138.197.216.192
5 2026-08-17 01:48 639225276872567548
74 ms 138.197.216.192
4 2026-08-17 01:32 639225267353865348
57 ms 138.197.216.192
3 2026-08-17 01:16 639225258033914248
103 ms 138.197.216.192
2 2026-08-17 00:24 639225226652221583
42 ms 138.197.216.192
1 2026-08-17 00:08 639225217156387684
35 ms 138.197.216.192