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 2026-08-19. For this date, NameServerHistory found 74 DNS check records, 71 successful responses, 3 failed responses, and 167 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

74

Historical checks stored for this nameserver on selected date

Average Latency

167 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-19 23:46

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

3

Checks with no response or no returned latency

Failure Rate

4%

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 2026-08-19 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
74 2026-08-19 23:46 639227795899225951
45 ms 138.197.216.192
73 2026-08-19 23:30 639227786351762008
42 ms 138.197.216.192
72 2026-08-19 23:14 639227776640591733
47 ms 138.197.216.192
71 2026-08-19 22:58 639227767128841282
50 ms 138.197.216.192
70 2026-08-19 22:42 639227757477304711
172 ms 138.197.216.192
69 2026-08-19 22:26 639227747572098014
178 ms 138.197.216.192
68 2026-08-19 22:09 639227737588613113
52 ms 138.197.216.192
67 2026-08-19 21:17 639227706134603955
61 ms 138.197.216.192
66 2026-08-19 21:01 639227696589027396
56 ms 138.197.216.192
65 2026-08-19 20:45 639227687097707639
110 ms 138.197.216.192
64 2026-08-19 20:29 639227677474464487
49 ms 138.197.216.192
63 2026-08-19 20:13 639227667767441118
46 ms 138.197.216.192
62 2026-08-19 19:56 639227657984833832
41 ms 138.197.216.192
61 2026-08-19 19:40 639227648079992640
167 ms 138.197.216.192
60 2026-08-19 19:23 639227638125048441
39 ms 138.197.216.192
59 2026-08-19 19:07 639227628211392142
35 ms 138.197.216.192
58 2026-08-19 18:50 639227618261696275
41 ms 138.197.216.192
57 2026-08-19 18:34 639227608366233645
124 ms 138.197.216.192
56 2026-08-19 18:17 639227598301787588
58 ms 138.197.216.192
55 2026-08-19 17:24 639227566241010716
28 ms 138.197.216.192
54 2026-08-19 17:07 639227556454538959
2028 ms 138.197.216.192
53 2026-08-19 16:51 639227546640305542
28 ms 138.197.216.192
52 2026-08-19 16:35 639227536965466472
40 ms 138.197.216.192
51 2026-08-19 16:18 639227527048658280
55 ms 138.197.216.192
50 2026-08-19 16:02 639227517386634438
166 ms 138.197.216.192
49 2026-08-19 15:46 639227507459551637
75 ms 138.197.216.192
48 2026-08-19 15:29 639227497515595277
55 ms 138.197.216.192
47 2026-08-19 15:12 639227487441798036
119 ms 138.197.216.192
46 2026-08-19 14:56 639227477445551863
104 ms 138.197.216.192
45 2026-08-19 14:39 639227467297067891
-
44 2026-08-19 14:22 639227457057795635
220 ms 138.197.216.192
43 2026-08-19 13:28 639227425244777397
7 ms 138.197.216.192
42 2026-08-19 13:12 639227415422116485
60 ms 138.197.216.192
41 2026-08-19 12:55 639227405307256053
31 ms 138.197.216.192
40 2026-08-19 12:39 639227395396602630
27 ms 138.197.216.192
39 2026-08-19 12:22 639227385510363611
31 ms 138.197.216.192
38 2026-08-19 12:06 639227375508324850
31 ms 138.197.216.192
37 2026-08-19 11:49 639227365326611906
166 ms 138.197.216.192
36 2026-08-19 11:32 639227355360014208
179 ms 138.197.216.192
35 2026-08-19 11:15 639227345036782165
31 ms 138.197.216.192
34 2026-08-19 10:58 639227334992964533
33 ms 138.197.216.192
33 2026-08-19 10:41 639227324986605572
60 ms 138.197.216.192
32 2026-08-19 10:25 639227314928414539
45 ms 138.197.216.192
31 2026-08-19 09:31 639227283029182134
170 ms 138.197.216.192
30 2026-08-19 09:15 639227273294779350
71 ms 138.197.216.192
29 2026-08-19 08:59 639227263525231313
2146 ms 138.197.216.192
28 2026-08-19 08:42 639227253578313363
171 ms 138.197.216.192
27 2026-08-19 08:26 639227243649973322
88 ms 138.197.216.192
26 2026-08-19 08:09 639227233581059317
175 ms 138.197.216.192
25 2026-08-19 07:52 639227223667352067
51 ms 138.197.216.192
24 2026-08-19 07:36 639227213714837066
99 ms 138.197.216.192
23 2026-08-19 07:19 639227203701208496
153 ms 138.197.216.192
22 2026-08-19 07:02 639227193643202179
221 ms 138.197.216.192
21 2026-08-19 06:46 639227183584431597
212 ms 138.197.216.192
20 2026-08-19 06:29 639227173347403088
103 ms 138.197.216.192
19 2026-08-19 05:36 639227141523007601
211 ms 138.197.216.192
18 2026-08-19 05:19 639227131785931574
-
17 2026-08-19 05:03 639227122176475389
26 ms 138.197.216.192
16 2026-08-19 04:47 639227112668934596
45 ms 138.197.216.192
15 2026-08-19 04:31 639227102773292788
-
14 2026-08-19 04:15 639227093141136930
122 ms 138.197.216.192
13 2026-08-19 03:59 639227083449420147
47 ms 138.197.216.192
12 2026-08-19 03:43 639227073771748493
39 ms 138.197.216.192
11 2026-08-19 03:26 639227063977347614
91 ms 138.197.216.192
10 2026-08-19 03:10 639227054253519024
34 ms 138.197.216.192
9 2026-08-19 02:54 639227044381963886
183 ms 138.197.216.192
8 2026-08-19 02:37 639227034441085514
34 ms 138.197.216.192
7 2026-08-19 01:45 639227003126489968
25 ms 138.197.216.192
6 2026-08-19 01:29 639226993456311614
2098 ms 138.197.216.192
5 2026-08-19 01:13 639226983847312345
36 ms 138.197.216.192
4 2026-08-19 00:57 639226974357874853
28 ms 138.197.216.192
3 2026-08-19 00:41 639226964670484721
55 ms 138.197.216.192
2 2026-08-19 00:25 639226954857899696
34 ms 138.197.216.192
1 2026-08-19 00:08 639226945091603488
45 ms 138.197.216.192