DNS response history for ns2.optionalarm.com

ns2.optionalarm.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 2026-08-20. For this date, NameServerHistory found 111 DNS check records, 108 successful responses, 3 failed responses, and 200 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.optionalarm.com.
Records on Selected Date

111

Historical checks stored for this nameserver on selected date

Average Latency

200 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-20 23:58

All timestamps shown in UTC

Latest Resolved IP on Selected Date

172.67.164.7

Most recently resolved hosting IP on selected date

Successful Responses

108

Checks that returned a measurable response

Failed Responses

3

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 ns2.optionalarm.com

Showing DNS history for 2026-08-20 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
111 2026-08-20 23:58 639228670775860800
7 ms 172.67.164.7
110 2026-08-20 23:58 639228670775860800
7 ms 104.21.81.202
109 2026-08-20 23:06 639228639850033448
34 ms 172.67.164.7
108 2026-08-20 23:06 639228639850033448
34 ms 104.21.81.202
107 2026-08-20 22:50 639228630204271870
104 ms 104.21.81.202
106 2026-08-20 22:50 639228630204271870
104 ms 172.67.164.7
105 2026-08-20 22:34 639228620295091135
-
104 2026-08-20 22:17 639228610298336915
193 ms 104.21.81.202
103 2026-08-20 22:17 639228610298336915
193 ms 172.67.164.7
102 2026-08-20 21:24 639228578917047616
15 ms 172.67.164.7
101 2026-08-20 21:24 639228578917047616
15 ms 104.21.81.202
100 2026-08-20 21:08 639228569046445709
24 ms 172.67.164.7
99 2026-08-20 21:08 639228569046445709
24 ms 104.21.81.202
98 2026-08-20 20:51 639228558946830986
528 ms 172.67.164.7
97 2026-08-20 20:51 639228558946830986
528 ms 104.21.81.202
96 2026-08-20 20:35 639228548977359217
64 ms 172.67.164.7
95 2026-08-20 20:35 639228548977359217
64 ms 104.21.81.202
94 2026-08-20 19:42 639228517494157668
13 ms 104.21.81.202
93 2026-08-20 19:42 639228517494157668
13 ms 172.67.164.7
92 2026-08-20 19:25 639228507374116892
58 ms 104.21.81.202
91 2026-08-20 19:25 639228507374116892
58 ms 172.67.164.7
90 2026-08-20 19:08 639228497315154893
51 ms 104.21.81.202
89 2026-08-20 19:08 639228497315154893
51 ms 172.67.164.7
88 2026-08-20 18:52 639228487287648341
-
87 2026-08-20 17:59 639228455828123788
41 ms 172.67.164.7
86 2026-08-20 17:59 639228455828123788
41 ms 104.21.81.202
85 2026-08-20 17:43 639228445900082244
36 ms 104.21.81.202
84 2026-08-20 17:43 639228445900082244
36 ms 172.67.164.7
83 2026-08-20 17:26 639228435866352323
29 ms 104.21.81.202
82 2026-08-20 17:26 639228435866352323
29 ms 172.67.164.7
81 2026-08-20 17:09 639228425802273151
80 ms 172.67.164.7
80 2026-08-20 17:09 639228425802273151
80 ms 104.21.81.202
79 2026-08-20 16:16 639228393616324230
-
78 2026-08-20 15:59 639228383590408693
9 ms 172.67.164.7
77 2026-08-20 15:59 639228383590408693
9 ms 104.21.81.202
76 2026-08-20 15:42 639228373471467474
11 ms 172.67.164.7
75 2026-08-20 15:42 639228373471467474
11 ms 104.21.81.202
74 2026-08-20 15:25 639228363426647311
12 ms 172.67.164.7
73 2026-08-20 15:25 639228363426647311
12 ms 104.21.81.202
72 2026-08-20 14:32 639228331681701910
14 ms 104.21.81.202
71 2026-08-20 14:32 639228331681701910
14 ms 172.67.164.7
70 2026-08-20 14:16 639228321714746824
13 ms 172.67.164.7
69 2026-08-20 14:16 639228321714746824
13 ms 104.21.81.202
68 2026-08-20 13:59 639228311652090262
21 ms 104.21.81.202
67 2026-08-20 13:59 639228311652090262
21 ms 172.67.164.7
66 2026-08-20 13:42 639228301670088587
12 ms 104.21.81.202
65 2026-08-20 13:42 639228301670088587
12 ms 172.67.164.7
64 2026-08-20 12:50 639228269987976710
57 ms 104.21.81.202
63 2026-08-20 12:50 639228269987976710
57 ms 172.67.164.7
62 2026-08-20 12:33 639228260009452308
42 ms 104.21.81.202
61 2026-08-20 12:33 639228260009452308
42 ms 172.67.164.7
60 2026-08-20 12:16 639228249661740894
60 ms 104.21.81.202
59 2026-08-20 12:16 639228249661740894
60 ms 172.67.164.7
58 2026-08-20 11:59 639228239552680346
19 ms 104.21.81.202
57 2026-08-20 11:59 639228239552680346
19 ms 172.67.164.7
56 2026-08-20 11:06 639228207667580819
9 ms 104.21.81.202
55 2026-08-20 11:06 639228207667580819
9 ms 172.67.164.7
54 2026-08-20 10:49 639228197494011560
2020 ms 172.67.164.7
53 2026-08-20 10:49 639228197494011560
2020 ms 104.21.81.202
52 2026-08-20 10:32 639228187497039939
2020 ms 104.21.81.202
51 2026-08-20 10:32 639228187497039939
2020 ms 172.67.164.7
50 2026-08-20 10:15 639228177408432646
13 ms 172.67.164.7
49 2026-08-20 10:15 639228177408432646
13 ms 104.21.81.202
48 2026-08-20 09:24 639228146356166262
292 ms 172.67.164.7
47 2026-08-20 09:24 639228146356166262
292 ms 104.21.81.202
46 2026-08-20 09:07 639228136541505712
15 ms 172.67.164.7
45 2026-08-20 09:07 639228136541505712
15 ms 104.21.81.202
44 2026-08-20 08:50 639228126519136598
31 ms 104.21.81.202
43 2026-08-20 08:50 639228126519136598
31 ms 172.67.164.7
42 2026-08-20 08:34 639228116537148885
11 ms 172.67.164.7
41 2026-08-20 08:34 639228116537148885
11 ms 104.21.81.202
40 2026-08-20 07:42 639228085320764351
12 ms 104.21.81.202
39 2026-08-20 07:42 639228085320764351
12 ms 172.67.164.7
38 2026-08-20 07:25 639228075444604839
38 ms 104.21.81.202
37 2026-08-20 07:25 639228075444604839
38 ms 172.67.164.7
36 2026-08-20 07:09 639228065615498985
24 ms 104.21.81.202
35 2026-08-20 07:09 639228065615498985
24 ms 172.67.164.7
34 2026-08-20 06:52 639228055675321422
2143 ms 104.21.81.202
33 2026-08-20 06:52 639228055675321422
2143 ms 172.67.164.7
32 2026-08-20 06:00 639228024230839396
52 ms 172.67.164.7
31 2026-08-20 06:00 639228024230839396
52 ms 104.21.81.202
30 2026-08-20 05:44 639228014720406505
20 ms 172.67.164.7
29 2026-08-20 05:44 639228014720406505
20 ms 104.21.81.202
28 2026-08-20 05:28 639228004930827030
17 ms 104.21.81.202
27 2026-08-20 05:28 639228004930827030
17 ms 172.67.164.7
26 2026-08-20 05:11 639227995103340154
28 ms 172.67.164.7
25 2026-08-20 05:11 639227995103340154
28 ms 104.21.81.202
24 2026-08-20 04:19 639227963811374894
32 ms 172.67.164.7
23 2026-08-20 04:19 639227963811374894
32 ms 104.21.81.202
22 2026-08-20 04:03 639227954132571365
42 ms 172.67.164.7
21 2026-08-20 04:03 639227954132571365
42 ms 104.21.81.202
20 2026-08-20 03:47 639227944541208342
45 ms 172.67.164.7
19 2026-08-20 03:47 639227944541208342
45 ms 104.21.81.202
18 2026-08-20 03:31 639227934657213484
2051 ms 104.21.81.202
17 2026-08-20 03:31 639227934657213484
2051 ms 172.67.164.7
16 2026-08-20 02:39 639227903628145469
9 ms 172.67.164.7
15 2026-08-20 02:39 639227903628145469
9 ms 104.21.81.202
14 2026-08-20 02:23 639227893995483475
69 ms 172.67.164.7
13 2026-08-20 02:23 639227893995483475
69 ms 104.21.81.202
12 2026-08-20 02:07 639227884280244209
140 ms 172.67.164.7
11 2026-08-20 02:07 639227884280244209
140 ms 104.21.81.202
10 2026-08-20 01:50 639227874371147132
9 ms 104.21.81.202
9 2026-08-20 01:50 639227874371147132
9 ms 172.67.164.7
8 2026-08-20 00:58 639227843224256432
20 ms 104.21.81.202
7 2026-08-20 00:58 639227843224256432
20 ms 172.67.164.7
6 2026-08-20 00:42 639227833720403506
41 ms 172.67.164.7
5 2026-08-20 00:42 639227833720403506
41 ms 104.21.81.202
4 2026-08-20 00:27 639227824170728278
21 ms 104.21.81.202
3 2026-08-20 00:27 639227824170728278
21 ms 172.67.164.7
2 2026-08-20 00:11 639227814865867570
6 ms 104.21.81.202
1 2026-08-20 00:11 639227814865867570
6 ms 172.67.164.7