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 2026-08-22. For this date, NameServerHistory found 74 DNS check records, 73 successful responses, 1 failed responses, and 237 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

74

Historical checks stored for this nameserver on selected date

Average Latency

237 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-22 23:53

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

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 ns2.a1cert.com

Showing DNS history for 2026-08-22 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 2026-08-22 23:53 639230391807229016
103 ms 77.223.137.136
73 2026-08-22 23:36 639230382051619327
55 ms 77.223.137.136
72 2026-08-22 23:20 639230372323353529
-
71 2026-08-22 23:04 639230362586451064
102 ms 77.223.137.136
70 2026-08-22 22:47 639230352793666303
61 ms 77.223.137.136
69 2026-08-22 22:31 639230342775737758
53 ms 77.223.137.136
68 2026-08-22 22:14 639230332639939561
8 ms 77.223.137.136
67 2026-08-22 21:21 639230301014190104
147 ms 77.223.137.136
66 2026-08-22 21:05 639230291048161498
106 ms 77.223.137.136
65 2026-08-22 20:48 639230280894353664
103 ms 77.223.137.136
64 2026-08-22 20:31 639230270699419073
121 ms 77.223.137.136
63 2026-08-22 20:13 639230260248163050
2063 ms 77.223.137.136
62 2026-08-22 19:56 639230250122494282
74 ms 77.223.137.136
61 2026-08-22 19:40 639230239972935046
102 ms 77.223.137.136
60 2026-08-22 19:23 639230229963262464
60 ms 77.223.137.136
59 2026-08-22 19:06 639230220033804658
18 ms 77.223.137.136
58 2026-08-22 18:50 639230209891107289
74 ms 77.223.137.136
57 2026-08-22 18:32 639230199630298717
61 ms 77.223.137.136
56 2026-08-22 18:15 639230189301984150
11 ms 77.223.137.136
55 2026-08-22 17:22 639230157138468804
73 ms 77.223.137.136
54 2026-08-22 17:05 639230146987869495
109 ms 77.223.137.136
53 2026-08-22 16:48 639230136768638516
108 ms 77.223.137.136
52 2026-08-22 16:31 639230126735907877
116 ms 77.223.137.136
51 2026-08-22 16:14 639230116551187768
54 ms 77.223.137.136
50 2026-08-22 15:57 639230106335615913
104 ms 77.223.137.136
49 2026-08-22 15:40 639230096177758176
65 ms 77.223.137.136
48 2026-08-22 15:23 639230086185999993
128 ms 77.223.137.136
47 2026-08-22 15:07 639230076247854903
59 ms 77.223.137.136
46 2026-08-22 14:50 639230066076077530
84 ms 77.223.137.136
45 2026-08-22 14:33 639230055738197328
108 ms 77.223.137.136
44 2026-08-22 14:15 639230045411225521
84 ms 77.223.137.136
43 2026-08-22 13:21 639230013046000470
96 ms 77.223.137.136
42 2026-08-22 13:05 639230003090037878
115 ms 77.223.137.136
41 2026-08-22 12:48 639229993008259475
17 ms 77.223.137.136
40 2026-08-22 12:31 639229982909449470
95 ms 77.223.137.136
39 2026-08-22 12:15 639229973035502212
108 ms 77.223.137.136
38 2026-08-22 11:58 639229963064296145
133 ms 77.223.137.136
37 2026-08-22 11:41 639229952996162143
26 ms 77.223.137.136
36 2026-08-22 11:24 639229943051949195
103 ms 77.223.137.136
35 2026-08-22 11:08 639229932919214934
7 ms 77.223.137.136
34 2026-08-22 10:51 639229922745889838
8 ms 77.223.137.136
33 2026-08-22 10:34 639229912587214796
114 ms 77.223.137.136
32 2026-08-22 10:17 639229902240004454
2067 ms 77.223.137.136
31 2026-08-22 09:24 639229870800501662
9 ms 77.223.137.136
30 2026-08-22 09:08 639229861058384956
103 ms 77.223.137.136
29 2026-08-22 08:52 639229851158592604
51 ms 77.223.137.136
28 2026-08-22 08:36 639229841475569629
110 ms 77.223.137.136
27 2026-08-22 08:19 639229831887658471
2065 ms 77.223.137.136
26 2026-08-22 08:03 639229822043670346
104 ms 77.223.137.136
25 2026-08-22 07:47 639229812327913936
2131 ms 77.223.137.136
24 2026-08-22 07:31 639229802629488686
3 ms 77.223.137.136
23 2026-08-22 07:15 639229793051447309
4 ms 77.223.137.136
22 2026-08-22 06:59 639229783303531961
10 ms 77.223.137.136
21 2026-08-22 06:42 639229773458051942
120 ms 77.223.137.136
20 2026-08-22 06:25 639229763373848056
114 ms 77.223.137.136
19 2026-08-22 05:33 639229732140622809
94 ms 77.223.137.136
18 2026-08-22 05:18 639229722699695967
2008 ms 77.223.137.136
17 2026-08-22 05:02 639229713097498075
105 ms 77.223.137.136
16 2026-08-22 04:46 639229703543969637
106 ms 77.223.137.136
15 2026-08-22 04:30 639229693970392873
8 ms 77.223.137.136
14 2026-08-22 04:13 639229684277329469
2 ms 77.223.137.136
13 2026-08-22 03:57 639229674501596661
87 ms 77.223.137.136
12 2026-08-22 03:41 639229665064441147
7 ms 77.223.137.136
11 2026-08-22 03:25 639229655507536872
3 ms 77.223.137.136
10 2026-08-22 03:09 639229645849603111
104 ms 77.223.137.136
9 2026-08-22 02:53 639229636090497453
9 ms 77.223.137.136
8 2026-08-22 02:36 639229625978544281
60 ms 77.223.137.136
7 2026-08-22 01:44 639229594644662176
142 ms 77.223.137.136
6 2026-08-22 01:28 639229585214633065
100 ms 77.223.137.136
5 2026-08-22 01:12 639229575581042175
78 ms 77.223.137.136
4 2026-08-22 00:56 639229565912268962
2067 ms 77.223.137.136
3 2026-08-22 00:40 639229556237813203
17 ms 77.223.137.136
2 2026-08-22 00:24 639229546625802518
157 ms 77.223.137.136
1 2026-08-22 00:08 639229537172016621
16 ms 77.223.137.136