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 2026-08-23. For this date, NameServerHistory found 75 DNS check records, 73 successful responses, 2 failed responses, and 238 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

75

Historical checks stored for this nameserver on selected date

Average Latency

238 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-23 23:51

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

2

Checks with no response or no returned latency

Failure Rate

3%

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 2026-08-23 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
75 2026-08-23 23:51 639231254406598736
47 ms 138.197.216.192
74 2026-08-23 23:34 639231244697865594
26 ms 138.197.216.192
73 2026-08-23 23:18 639231234893504693
2049 ms 138.197.216.192
72 2026-08-23 23:02 639231225024549139
184 ms 138.197.216.192
71 2026-08-23 22:45 639231214931957622
2118 ms 138.197.216.192
70 2026-08-23 22:28 639231204962010549
32 ms 138.197.216.192
69 2026-08-23 22:12 639231195170138463
52 ms 138.197.216.192
68 2026-08-23 21:55 639231185235020577
2026 ms 138.197.216.192
67 2026-08-23 21:39 639231175558690075
41 ms 138.197.216.192
66 2026-08-23 21:22 639231165610444012
25 ms 138.197.216.192
65 2026-08-23 20:30 639231133806425363
30 ms 138.197.216.192
64 2026-08-23 20:14 639231124203758023
33 ms 138.197.216.192
63 2026-08-23 19:57 639231114428262706
63 ms 138.197.216.192
62 2026-08-23 19:41 639231104662480065
31 ms 138.197.216.192
61 2026-08-23 19:25 639231094840372018
31 ms 138.197.216.192
60 2026-08-23 19:08 639231085024583224
60 ms 138.197.216.192
59 2026-08-23 18:52 639231075257417427
189 ms 138.197.216.192
58 2026-08-23 18:36 639231065516009503
34 ms 138.197.216.192
57 2026-08-23 18:20 639231055805348837
167 ms 138.197.216.192
56 2026-08-23 18:03 639231045980373765
45 ms 138.197.216.192
55 2026-08-23 17:47 639231035984577527
34 ms 138.197.216.192
54 2026-08-23 17:30 639231025928115303
44 ms 138.197.216.192
53 2026-08-23 16:37 639230994250157583
28 ms 138.197.216.192
52 2026-08-23 16:21 639230984476411369
61 ms 138.197.216.192
51 2026-08-23 16:05 639230974838373450
73 ms 138.197.216.192
50 2026-08-23 15:49 639230965244277645
33 ms 138.197.216.192
49 2026-08-23 15:32 639230955522101820
25 ms 138.197.216.192
48 2026-08-23 15:16 639230945754521603
193 ms 138.197.216.192
47 2026-08-23 15:00 639230935852040504
38 ms 138.197.216.192
46 2026-08-23 14:44 639230926222061048
178 ms 138.197.216.192
45 2026-08-23 14:27 639230916449726907
29 ms 138.197.216.192
44 2026-08-23 14:11 639230906595053086
34 ms 138.197.216.192
43 2026-08-23 13:54 639230896680429441
99 ms 138.197.216.192
42 2026-08-23 13:38 639230886630210965
74 ms 138.197.216.192
41 2026-08-23 12:46 639230855430405719
2037 ms 138.197.216.192
40 2026-08-23 12:29 639230845707499136
166 ms 138.197.216.192
39 2026-08-23 12:13 639230836186805419
188 ms 138.197.216.192
38 2026-08-23 11:57 639230826493828316
48 ms 138.197.216.192
37 2026-08-23 11:41 639230816817882996
42 ms 138.197.216.192
36 2026-08-23 11:25 639230806933854189
2094 ms 138.197.216.192
35 2026-08-23 11:08 639230797120243854
108 ms 138.197.216.192
34 2026-08-23 10:52 639230787310272840
60 ms 138.197.216.192
33 2026-08-23 10:36 639230777600173142
37 ms 138.197.216.192
32 2026-08-23 10:19 639230767665024593
53 ms 138.197.216.192
31 2026-08-23 10:03 639230757720962293
108 ms 138.197.216.192
30 2026-08-23 09:46 639230747722189784
32 ms 138.197.216.192
29 2026-08-23 08:54 639230716313923480
101 ms 138.197.216.192
28 2026-08-23 08:38 639230706813835990
30 ms 138.197.216.192
27 2026-08-23 08:22 639230696871062203
55 ms 138.197.216.192
26 2026-08-23 08:05 639230687142781616
74 ms 138.197.216.192
25 2026-08-23 07:49 639230677432142227
182 ms 138.197.216.192
24 2026-08-23 07:33 639230667686258061
-
23 2026-08-23 07:17 639230658039243685
50 ms 138.197.216.192
22 2026-08-23 07:01 639230648468473803
166 ms 138.197.216.192
21 2026-08-23 06:45 639230638829658294
37 ms 138.197.216.192
20 2026-08-23 06:29 639230629247017617
43 ms 138.197.216.192
19 2026-08-23 06:13 639230619625318239
27 ms 138.197.216.192
18 2026-08-23 05:56 639230609697630264
101 ms 138.197.216.192
17 2026-08-23 05:04 639230578570131864
-
16 2026-08-23 04:48 639230568958963168
41 ms 138.197.216.192
15 2026-08-23 04:32 639230559287611211
53 ms 138.197.216.192
14 2026-08-23 04:16 639230549524312030
120 ms 138.197.216.192
13 2026-08-23 04:00 639230539739801669
46 ms 138.197.216.192
12 2026-08-23 03:43 639230530084069375
173 ms 138.197.216.192
11 2026-08-23 03:27 639230520362691441
48 ms 138.197.216.192
10 2026-08-23 03:11 639230510677194518
2067 ms 138.197.216.192
9 2026-08-23 02:55 639230501156002646
9 ms 138.197.216.192
8 2026-08-23 02:39 639230491502198541
63 ms 138.197.216.192
7 2026-08-23 02:23 639230481860318494
54 ms 138.197.216.192
6 2026-08-23 02:06 639230471893008575
53 ms 138.197.216.192
5 2026-08-23 01:13 639230440030877421
146 ms 138.197.216.192
4 2026-08-23 00:57 639230430479725508
94 ms 138.197.216.192
3 2026-08-23 00:41 639230420875160219
223 ms 138.197.216.192
2 2026-08-23 00:25 639230411240692575
55 ms 138.197.216.192
1 2026-08-23 00:09 639230401550806607
30 ms 138.197.216.192