DNS response history for ns4.a2sys.co

ns4.a2sys.co 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 70 DNS check records, 69 successful responses, 1 failed responses, and 284 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 ns4.a2sys.co.
Records on Selected Date

70

Historical checks stored for this nameserver on selected date

Average Latency

284 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 23:45

All timestamps shown in UTC

Latest Resolved IP on Selected Date

139.99.122.116

Most recently resolved hosting IP on selected date

Successful Responses

69

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 ns4.a2sys.co

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
70 2026-08-26 23:45 639233846871926285
67 ms 139.99.122.116
69 2026-08-26 22:51 639233814527872887
18 ms 139.99.122.116
68 2026-08-26 22:34 639233804315489381
11 ms 139.99.122.116
67 2026-08-26 22:17 639233793971346256
11 ms 139.99.122.116
66 2026-08-26 22:00 639233783644630463
-
65 2026-08-26 21:42 639233773302621314
2058 ms 139.99.122.116
64 2026-08-26 21:25 639233762896723748
4 ms 139.99.122.116
63 2026-08-26 21:08 639233752543876329
13 ms 139.99.122.116
62 2026-08-26 20:50 639233742155931788
6 ms 139.99.122.116
61 2026-08-26 20:33 639233731712555311
2025 ms 139.99.122.116
60 2026-08-26 20:15 639233721164051126
11 ms 139.99.122.116
59 2026-08-26 19:58 639233710560486320
24 ms 139.99.122.116
58 2026-08-26 19:40 639233699834667450
68 ms 139.99.122.116
57 2026-08-26 18:45 639233667209186136
73 ms 139.99.122.116
56 2026-08-26 18:28 639233656814316266
30 ms 139.99.122.116
55 2026-08-26 18:10 639233646245051806
28 ms 139.99.122.116
54 2026-08-26 17:53 639233635663779051
15 ms 139.99.122.116
53 2026-08-26 17:35 639233624977342122
8 ms 139.99.122.116
52 2026-08-26 17:17 639233614446136153
16 ms 139.99.122.116
51 2026-08-26 17:00 639233603737877581
53 ms 139.99.122.116
50 2026-08-26 16:42 639233593269224651
12 ms 139.99.122.116
49 2026-08-26 16:24 639233582635086903
46 ms 139.99.122.116
48 2026-08-26 16:07 639233572000374575
16 ms 139.99.122.116
47 2026-08-26 15:49 639233561188633861
2016 ms 139.99.122.116
46 2026-08-26 15:31 639233550544357027
11 ms 139.99.122.116
45 2026-08-26 14:37 639233517966053117
28 ms 139.99.122.116
44 2026-08-26 14:19 639233507603253585
66 ms 139.99.122.116
43 2026-08-26 14:02 639233497229039167
42 ms 139.99.122.116
42 2026-08-26 13:45 639233486864546406
2021 ms 139.99.122.116
41 2026-08-26 13:28 639233476455174682
19 ms 139.99.122.116
40 2026-08-26 13:10 639233466171592605
16 ms 139.99.122.116
39 2026-08-26 12:53 639233455747096265
2081 ms 139.99.122.116
38 2026-08-26 12:36 639233445367152284
78 ms 139.99.122.116
37 2026-08-26 12:18 639233434974187439
34 ms 139.99.122.116
36 2026-08-26 12:01 639233424567558554
36 ms 139.99.122.116
35 2026-08-26 11:44 639233414056832719
68 ms 139.99.122.116
34 2026-08-26 11:26 639233403515141099
14 ms 139.99.122.116
33 2026-08-26 10:31 639233370841350248
18 ms 139.99.122.116
32 2026-08-26 10:14 639233360361507238
70 ms 139.99.122.116
31 2026-08-26 09:57 639233350067824371
2048 ms 139.99.122.116
30 2026-08-26 09:39 639233339545274518
35 ms 139.99.122.116
29 2026-08-26 09:22 639233329214918079
41 ms 139.99.122.116
28 2026-08-26 09:05 639233318749762337
1549 ms 139.99.122.116
27 2026-08-26 08:47 639233308387917838
12 ms 139.99.122.116
26 2026-08-26 08:30 639233297961740122
43 ms 139.99.122.116
25 2026-08-26 08:13 639233287487159094
14 ms 139.99.122.116
24 2026-08-26 07:55 639233276995531707
12 ms 139.99.122.116
23 2026-08-26 07:38 639233266521568229
72 ms 139.99.122.116
22 2026-08-26 07:20 639233256081047431
48 ms 139.99.122.116
21 2026-08-26 06:26 639233223620132921
53 ms 139.99.122.116
20 2026-08-26 06:09 639233213287814244
19 ms 139.99.122.116
19 2026-08-26 05:52 639233202925983161
5 ms 139.99.122.116
18 2026-08-26 05:34 639233192644780696
16 ms 139.99.122.116
17 2026-08-26 05:17 639233182401183833
12 ms 139.99.122.116
16 2026-08-26 05:00 639233172074181051
12 ms 139.99.122.116
15 2026-08-26 04:43 639233161808421455
2048 ms 139.99.122.116
14 2026-08-26 04:26 639233151357344052
28 ms 139.99.122.116
13 2026-08-26 04:08 639233141034116946
11 ms 139.99.122.116
12 2026-08-26 03:51 639233130828334142
4 ms 139.99.122.116
11 2026-08-26 03:34 639233120373450007
18 ms 139.99.122.116
10 2026-08-26 03:17 639233110066216193
22 ms 139.99.122.116
9 2026-08-26 02:24 639233078065410564
11 ms 139.99.122.116
8 2026-08-26 02:06 639233067787457832
10 ms 139.99.122.116
7 2026-08-26 01:49 639233057501801162
26 ms 139.99.122.116
6 2026-08-26 01:32 639233047089431703
56 ms 139.99.122.116
5 2026-08-26 01:15 639233036754790688
4 ms 139.99.122.116
4 2026-08-26 00:57 639233026412602472
15 ms 139.99.122.116
3 2026-08-26 00:40 639233016064066127
2050 ms 139.99.122.116
2 2026-08-26 00:23 639233005922655772
44 ms 139.99.122.116
1 2026-08-26 00:06 639232995672256907
15 ms 139.99.122.116