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 2026-08-13. For this date, NameServerHistory found 144 DNS check records, 144 successful responses, 0 failed responses, and 231 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

144

Historical checks stored for this nameserver on selected date

Average Latency

231 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-13 23:52

All timestamps shown in UTC

Latest Resolved IP on Selected Date

104.21.81.202

Most recently resolved hosting IP on selected date

Successful Responses

144

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.optionalarm.com

Showing DNS history for 2026-08-13 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
144 2026-08-13 23:52 639222618462620588
7 ms 104.21.81.202
143 2026-08-13 23:52 639222618462620588
7 ms 172.67.164.7
142 2026-08-13 23:36 639222608688333012
20 ms 104.21.81.202
141 2026-08-13 23:36 639222608688333012
20 ms 172.67.164.7
140 2026-08-13 23:19 639222598741756356
56 ms 172.67.164.7
139 2026-08-13 23:19 639222598741756356
56 ms 104.21.81.202
138 2026-08-13 23:02 639222588615244093
30 ms 104.21.81.202
137 2026-08-13 23:02 639222588615244093
30 ms 172.67.164.7
136 2026-08-13 22:09 639222556495289724
25 ms 172.67.164.7
135 2026-08-13 22:09 639222556495289724
25 ms 104.21.81.202
134 2026-08-13 21:53 639222546477917698
25 ms 172.67.164.7
133 2026-08-13 21:53 639222546477917698
25 ms 104.21.81.202
132 2026-08-13 21:36 639222536257653790
55 ms 172.67.164.7
131 2026-08-13 21:36 639222536257653790
55 ms 104.21.81.202
130 2026-08-13 21:18 639222525833084485
25 ms 104.21.81.202
129 2026-08-13 21:18 639222525833084485
25 ms 172.67.164.7
128 2026-08-13 21:01 639222515446085004
47 ms 104.21.81.202
127 2026-08-13 21:01 639222515446085004
47 ms 172.67.164.7
126 2026-08-13 20:44 639222505166766781
51 ms 172.67.164.7
125 2026-08-13 20:44 639222505166766781
51 ms 104.21.81.202
124 2026-08-13 20:27 639222494930541001
38 ms 172.67.164.7
123 2026-08-13 20:27 639222494930541001
38 ms 104.21.81.202
122 2026-08-13 20:09 639222484469216890
22 ms 104.21.81.202
121 2026-08-13 20:09 639222484469216890
22 ms 172.67.164.7
120 2026-08-13 19:52 639222474270039940
17 ms 104.21.81.202
119 2026-08-13 19:52 639222474270039940
17 ms 172.67.164.7
118 2026-08-13 19:35 639222464005587385
15 ms 104.21.81.202
117 2026-08-13 19:35 639222464005587385
15 ms 172.67.164.7
116 2026-08-13 19:18 639222453485975041
97 ms 172.67.164.7
115 2026-08-13 19:18 639222453485975041
97 ms 104.21.81.202
114 2026-08-13 19:00 639222442984828770
38 ms 104.21.81.202
113 2026-08-13 19:00 639222442984828770
38 ms 172.67.164.7
112 2026-08-13 18:06 639222410191353397
14 ms 172.67.164.7
111 2026-08-13 18:06 639222410191353397
14 ms 104.21.81.202
110 2026-08-13 17:49 639222399952628376
40 ms 104.21.81.202
109 2026-08-13 17:49 639222399952628376
40 ms 172.67.164.7
108 2026-08-13 17:31 639222389608608647
114 ms 172.67.164.7
107 2026-08-13 17:31 639222389608608647
114 ms 104.21.81.202
106 2026-08-13 17:15 639222379604012481
42 ms 172.67.164.7
105 2026-08-13 17:15 639222379604012481
42 ms 104.21.81.202
104 2026-08-13 16:58 639222369372672858
2021 ms 104.21.81.202
103 2026-08-13 16:58 639222369372672858
2021 ms 172.67.164.7
102 2026-08-13 16:41 639222359096909298
18 ms 104.21.81.202
101 2026-08-13 16:41 639222359096909298
18 ms 172.67.164.7
100 2026-08-13 16:23 639222348814301655
51 ms 172.67.164.7
99 2026-08-13 16:23 639222348814301655
51 ms 104.21.81.202
98 2026-08-13 16:06 639222338608331104
9 ms 104.21.81.202
97 2026-08-13 16:06 639222338608331104
9 ms 172.67.164.7
96 2026-08-13 15:49 639222328204609760
42 ms 172.67.164.7
95 2026-08-13 15:49 639222328204609760
42 ms 104.21.81.202
94 2026-08-13 15:32 639222317859759909
39 ms 104.21.81.202
93 2026-08-13 15:32 639222317859759909
39 ms 172.67.164.7
92 2026-08-13 15:15 639222307560137918
25 ms 172.67.164.7
91 2026-08-13 15:15 639222307560137918
25 ms 104.21.81.202
90 2026-08-13 14:57 639222297274357149
25 ms 172.67.164.7
89 2026-08-13 14:57 639222297274357149
25 ms 104.21.81.202
88 2026-08-13 14:04 639222265004477827
24 ms 172.67.164.7
87 2026-08-13 14:04 639222265004477827
24 ms 104.21.81.202
86 2026-08-13 13:48 639222255176583683
19 ms 104.21.81.202
85 2026-08-13 13:48 639222255176583683
19 ms 172.67.164.7
84 2026-08-13 13:31 639222245340146131
28 ms 172.67.164.7
83 2026-08-13 13:31 639222245340146131
28 ms 104.21.81.202
82 2026-08-13 13:15 639222235662219956
19 ms 104.21.81.202
81 2026-08-13 13:15 639222235662219956
19 ms 172.67.164.7
80 2026-08-13 12:59 639222225817223284
39 ms 172.67.164.7
79 2026-08-13 12:59 639222225817223284
39 ms 104.21.81.202
78 2026-08-13 12:43 639222216341869648
10 ms 172.67.164.7
77 2026-08-13 12:43 639222216341869648
10 ms 104.21.81.202
76 2026-08-13 12:27 639222206848442189
32 ms 104.21.81.202
75 2026-08-13 12:27 639222206848442189
32 ms 172.67.164.7
74 2026-08-13 12:12 639222197538963225
9 ms 172.67.164.7
73 2026-08-13 12:12 639222197538963225
9 ms 104.21.81.202
72 2026-08-13 11:56 639222188113685569
31 ms 104.21.81.202
71 2026-08-13 11:56 639222188113685569
31 ms 172.67.164.7
70 2026-08-13 11:41 639222178880138458
36 ms 104.21.81.202
69 2026-08-13 11:41 639222178880138458
36 ms 172.67.164.7
68 2026-08-13 11:25 639222169343013317
13 ms 104.21.81.202
67 2026-08-13 11:25 639222169343013317
13 ms 172.67.164.7
66 2026-08-13 11:09 639222159910600596
11 ms 172.67.164.7
65 2026-08-13 11:09 639222159910600596
11 ms 104.21.81.202
64 2026-08-13 10:17 639222128676274866
119 ms 172.67.164.7
63 2026-08-13 10:17 639222128676274866
119 ms 104.21.81.202
62 2026-08-13 10:02 639222119169781983
24 ms 104.21.81.202
61 2026-08-13 10:02 639222119169781983
24 ms 172.67.164.7
60 2026-08-13 09:46 639222109996148889
20 ms 172.67.164.7
59 2026-08-13 09:46 639222109996148889
20 ms 104.21.81.202
58 2026-08-13 09:31 639222100791323799
27 ms 172.67.164.7
57 2026-08-13 09:31 639222100791323799
27 ms 104.21.81.202
56 2026-08-13 09:16 639222091647893142
41 ms 104.21.81.202
55 2026-08-13 09:16 639222091647893142
41 ms 172.67.164.7
54 2026-08-13 09:01 639222082524717649
55 ms 104.21.81.202
53 2026-08-13 09:01 639222082524717649
55 ms 172.67.164.7
52 2026-08-13 08:45 639222073378630456
4 ms 172.67.164.7
51 2026-08-13 08:45 639222073378630456
4 ms 104.21.81.202
50 2026-08-13 08:31 639222064537306701
23 ms 104.21.81.202
49 2026-08-13 08:31 639222064537306701
23 ms 172.67.164.7
48 2026-08-13 08:15 639222055409471864
68 ms 104.21.81.202
47 2026-08-13 08:15 639222055409471864
68 ms 172.67.164.7
46 2026-08-13 08:00 639222046117152411
37 ms 172.67.164.7
45 2026-08-13 08:00 639222046117152411
37 ms 104.21.81.202
44 2026-08-13 07:45 639222036915107067
40 ms 104.21.81.202
43 2026-08-13 07:45 639222036915107067
40 ms 172.67.164.7
42 2026-08-13 07:29 639222027654889141
23 ms 172.67.164.7
41 2026-08-13 07:29 639222027654889141
23 ms 104.21.81.202
40 2026-08-13 06:37 639221996824612035
2153 ms 172.67.164.7
39 2026-08-13 06:37 639221996824612035
2153 ms 104.21.81.202
38 2026-08-13 06:22 639221987863418113
2085 ms 104.21.81.202
37 2026-08-13 06:22 639221987863418113
2085 ms 172.67.164.7
36 2026-08-13 06:08 639221979006823112
10 ms 104.21.81.202
35 2026-08-13 06:08 639221979006823112
10 ms 172.67.164.7
34 2026-08-13 05:53 639221970068466615
22 ms 172.67.164.7
33 2026-08-13 05:53 639221970068466615
22 ms 104.21.81.202
32 2026-08-13 05:38 639221961001585139
14 ms 104.21.81.202
31 2026-08-13 05:38 639221961001585139
14 ms 172.67.164.7
30 2026-08-13 05:23 639221952104046397
100 ms 172.67.164.7
29 2026-08-13 05:23 639221952104046397
100 ms 104.21.81.202
28 2026-08-13 05:08 639221943247694484
15 ms 104.21.81.202
27 2026-08-13 05:08 639221943247694484
15 ms 172.67.164.7
26 2026-08-13 04:54 639221934603388241
33 ms 172.67.164.7
25 2026-08-13 04:54 639221934603388241
33 ms 104.21.81.202
24 2026-08-13 04:39 639221925729273358
13 ms 104.21.81.202
23 2026-08-13 04:39 639221925729273358
13 ms 172.67.164.7
22 2026-08-13 04:24 639221916777813401
20 ms 172.67.164.7
21 2026-08-13 04:24 639221916777813401
20 ms 104.21.81.202
20 2026-08-13 04:09 639221907816913910
2038 ms 172.67.164.7
19 2026-08-13 04:09 639221907816913910
2038 ms 104.21.81.202
18 2026-08-13 03:54 639221898639694322
10 ms 172.67.164.7
17 2026-08-13 03:54 639221898639694322
10 ms 104.21.81.202
16 2026-08-13 03:02 639221868257567489
91 ms 172.67.164.7
15 2026-08-13 03:02 639221868257567489
91 ms 104.21.81.202
14 2026-08-13 02:47 639221859270235608
2023 ms 104.21.81.202
13 2026-08-13 02:47 639221859270235608
2023 ms 172.67.164.7
12 2026-08-13 02:32 639221850184464515
2042 ms 172.67.164.7
11 2026-08-13 02:32 639221850184464515
2042 ms 104.21.81.202
10 2026-08-13 02:17 639221841141973425
60 ms 104.21.81.202
9 2026-08-13 02:17 639221841141973425
60 ms 172.67.164.7
8 2026-08-13 01:26 639221810548753083
62 ms 104.21.81.202
7 2026-08-13 01:26 639221810548753083
62 ms 172.67.164.7
6 2026-08-13 01:11 639221801656796262
2022 ms 172.67.164.7
5 2026-08-13 01:11 639221801656796262
2022 ms 104.21.81.202
4 2026-08-13 00:56 639221792658715334
33 ms 104.21.81.202
3 2026-08-13 00:56 639221792658715334
33 ms 172.67.164.7
2 2026-08-13 00:41 639221783571379176
47 ms 172.67.164.7
1 2026-08-13 00:41 639221783571379176
47 ms 104.21.81.202