DNS response history for ns2.a1cert.com

ns2.a1cert.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 184 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 ns2.a1cert.com.
Records on Selected Date

73

Historical checks stored for this nameserver on selected date

Average Latency

184 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

77.223.137.136

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 ns2.a1cert.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
20 ms 77.223.137.136
72 2026-08-21 23:36 639229517954323214
10 ms 77.223.137.136
71 2026-08-21 23:20 639229508269999021
63 ms 77.223.137.136
70 2026-08-21 23:04 639229498559060171
2060 ms 77.223.137.136
69 2026-08-21 22:47 639229488519347586
10 ms 77.223.137.136
68 2026-08-21 21:54 639229456606578934
9 ms 77.223.137.136
67 2026-08-21 21:38 639229446985772499
122 ms 77.223.137.136
66 2026-08-21 21:22 639229437367313098
110 ms 77.223.137.136
65 2026-08-21 21:06 639229427923950391
124 ms 77.223.137.136
64 2026-08-21 20:50 639229418168588854
55 ms 77.223.137.136
63 2026-08-21 20:33 639229408345678334
101 ms 77.223.137.136
62 2026-08-21 20:17 639229398616354648
59 ms 77.223.137.136
61 2026-08-21 20:01 639229388634592323
8 ms 77.223.137.136
60 2026-08-21 19:44 639229378792837692
81 ms 77.223.137.136
59 2026-08-21 19:28 639229369154682311
59 ms 77.223.137.136
58 2026-08-21 19:12 639229359248017926
2099 ms 77.223.137.136
57 2026-08-21 18:55 639229349124294642
8 ms 77.223.137.136
56 2026-08-21 18:03 639229317791715692
21 ms 77.223.137.136
55 2026-08-21 17:46 639229308115194575
105 ms 77.223.137.136
54 2026-08-21 17:30 639229298320320558
64 ms 77.223.137.136
53 2026-08-21 17:14 639229288674863221
71 ms 77.223.137.136
52 2026-08-21 16:58 639229278983677079
111 ms 77.223.137.136
51 2026-08-21 16:42 639229269405517175
26 ms 77.223.137.136
50 2026-08-21 16:26 639229259594798244
42 ms 77.223.137.136
49 2026-08-21 16:09 639229249736681188
80 ms 77.223.137.136
48 2026-08-21 15:52 639229239699417787
102 ms 77.223.137.136
47 2026-08-21 15:36 639229229621964033
107 ms 77.223.137.136
46 2026-08-21 15:19 639229219567270965
103 ms 77.223.137.136
45 2026-08-21 15:02 639229209406666856
116 ms 77.223.137.136
44 2026-08-21 14:09 639229177815876178
122 ms 77.223.137.136
43 2026-08-21 13:53 639229168243572685
76 ms 77.223.137.136
42 2026-08-21 13:37 639229158599856475
114 ms 77.223.137.136
41 2026-08-21 13:21 639229148998940902
2081 ms 77.223.137.136
40 2026-08-21 13:05 639229139276923594
59 ms 77.223.137.136
39 2026-08-21 12:49 639229129709912394
123 ms 77.223.137.136
38 2026-08-21 12:33 639229119801488500
2092 ms 77.223.137.136
37 2026-08-21 12:16 639229110135262458
125 ms 77.223.137.136
36 2026-08-21 12:00 639229100336051392
103 ms 77.223.137.136
35 2026-08-21 11:44 639229090641415626
81 ms 77.223.137.136
34 2026-08-21 11:27 639229080702683947
53 ms 77.223.137.136
33 2026-08-21 11:11 639229070601456699
56 ms 77.223.137.136
32 2026-08-21 10:18 639229038947447232
109 ms 77.223.137.136
31 2026-08-21 10:02 639229029268708773
3 ms 77.223.137.136
30 2026-08-21 09:46 639229019647910603
33 ms 77.223.137.136
29 2026-08-21 09:29 639229009983843738
52 ms 77.223.137.136
28 2026-08-21 09:13 639229000203331882
73 ms 77.223.137.136
27 2026-08-21 08:57 639228990302335999
105 ms 77.223.137.136
26 2026-08-21 08:40 639228980567740722
110 ms 77.223.137.136
25 2026-08-21 08:24 639228970762445174
115 ms 77.223.137.136
24 2026-08-21 08:08 639228961065054445
7 ms 77.223.137.136
23 2026-08-21 07:52 639228951224649885
5 ms 77.223.137.136
22 2026-08-21 07:35 639228941303864592
7 ms 77.223.137.136
21 2026-08-21 07:18 639228931191328583
7 ms 77.223.137.136
20 2026-08-21 06:26 639228899518173317
79 ms 77.223.137.136
19 2026-08-21 06:09 639228889785027669
72 ms 77.223.137.136
18 2026-08-21 05:53 639228880106330161
107 ms 77.223.137.136
17 2026-08-21 05:37 639228870316184091
139 ms 77.223.137.136
16 2026-08-21 05:21 639228860695366512
32 ms 77.223.137.136
15 2026-08-21 05:05 639228851027209500
112 ms 77.223.137.136
14 2026-08-21 04:49 639228841479265462
7 ms 77.223.137.136
13 2026-08-21 04:33 639228831752962260
67 ms 77.223.137.136
12 2026-08-21 04:16 639228821953295483
3 ms 77.223.137.136
11 2026-08-21 04:00 639228812227429953
57 ms 77.223.137.136
10 2026-08-21 03:44 639228802476107538
8 ms 77.223.137.136
9 2026-08-21 03:27 639228792525492032
110 ms 77.223.137.136
8 2026-08-21 02:35 639228761131421385
123 ms 77.223.137.136
7 2026-08-21 02:19 639228751571206692
137 ms 77.223.137.136
6 2026-08-21 02:02 639228741705571019
118 ms 77.223.137.136
5 2026-08-21 01:46 639228731642208228
100 ms 77.223.137.136
4 2026-08-21 00:54 639228700387002072
199 ms 77.223.137.136
3 2026-08-21 00:37 639228690742014433
53 ms 77.223.137.136
2 2026-08-21 00:21 639228680877937122
120 ms 77.223.137.136
1 2026-08-21 00:04 639228670775860800
121 ms 77.223.137.136