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 2026-08-09. For this date, NameServerHistory found 156 DNS check records, 156 successful responses, 0 failed responses, and 165 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

156

Historical checks stored for this nameserver on selected date

Average Latency

165 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-09 23:11

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

156

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 2026-08-09 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
156 2026-08-09 23:11 639219137912168440
93 ms 104.21.81.202
155 2026-08-09 23:11 639219137912168440
93 ms 172.67.164.7
154 2026-08-09 22:57 639219129014206359
45 ms 172.67.164.7
153 2026-08-09 22:57 639219129014206359
45 ms 104.21.81.202
152 2026-08-09 22:42 639219120129816185
27 ms 172.67.164.7
151 2026-08-09 22:42 639219120129816185
27 ms 104.21.81.202
150 2026-08-09 22:27 639219111180200055
43 ms 172.67.164.7
149 2026-08-09 22:27 639219111180200055
43 ms 104.21.81.202
148 2026-08-09 22:12 639219102397272208
105 ms 172.67.164.7
147 2026-08-09 22:12 639219102397272208
105 ms 104.21.81.202
146 2026-08-09 21:57 639219093318422880
44 ms 104.21.81.202
145 2026-08-09 21:57 639219093318422880
44 ms 172.67.164.7
144 2026-08-09 21:42 639219084400315753
41 ms 172.67.164.7
143 2026-08-09 21:42 639219084400315753
41 ms 104.21.81.202
142 2026-08-09 21:27 639219075254551587
103 ms 172.67.164.7
141 2026-08-09 21:27 639219075254551587
103 ms 104.21.81.202
140 2026-08-09 21:11 639219065729192158
54 ms 172.67.164.7
139 2026-08-09 21:11 639219065729192158
54 ms 104.21.81.202
138 2026-08-09 20:56 639219056747802098
46 ms 172.67.164.7
137 2026-08-09 20:56 639219056747802098
46 ms 104.21.81.202
136 2026-08-09 20:41 639219047713450952
33 ms 172.67.164.7
135 2026-08-09 20:41 639219047713450952
33 ms 104.21.81.202
134 2026-08-09 20:26 639219038561445315
54 ms 172.67.164.7
133 2026-08-09 20:26 639219038561445315
54 ms 104.21.81.202
132 2026-08-09 19:35 639219007390383771
35 ms 172.67.164.7
131 2026-08-09 19:35 639219007390383771
35 ms 104.21.81.202
130 2026-08-09 19:20 639218998523265596
31 ms 172.67.164.7
129 2026-08-09 19:20 639218998523265596
31 ms 104.21.81.202
128 2026-08-09 19:05 639218989631630804
54 ms 172.67.164.7
127 2026-08-09 19:05 639218989631630804
54 ms 104.21.81.202
126 2026-08-09 18:51 639218980808450892
16 ms 104.21.81.202
125 2026-08-09 18:51 639218980808450892
16 ms 172.67.164.7
124 2026-08-09 18:36 639218971852160604
13 ms 104.21.81.202
123 2026-08-09 18:36 639218971852160604
13 ms 172.67.164.7
122 2026-08-09 18:21 639218962783650906
34 ms 104.21.81.202
121 2026-08-09 18:21 639218962783650906
34 ms 172.67.164.7
120 2026-08-09 18:06 639218953792820819
14 ms 172.67.164.7
119 2026-08-09 18:06 639218953792820819
14 ms 104.21.81.202
118 2026-08-09 17:51 639218944959692876
23 ms 172.67.164.7
117 2026-08-09 17:51 639218944959692876
23 ms 104.21.81.202
116 2026-08-09 17:36 639218936169104506
11 ms 104.21.81.202
115 2026-08-09 17:36 639218936169104506
11 ms 172.67.164.7
114 2026-08-09 17:21 639218927166062556
10 ms 172.67.164.7
113 2026-08-09 17:21 639218927166062556
10 ms 104.21.81.202
112 2026-08-09 17:06 639218918015715420
29 ms 104.21.81.202
111 2026-08-09 17:06 639218918015715420
29 ms 172.67.164.7
110 2026-08-09 16:51 639218908881852638
35 ms 104.21.81.202
109 2026-08-09 16:51 639218908881852638
35 ms 172.67.164.7
108 2026-08-09 16:00 639218877956262035
40 ms 104.21.81.202
107 2026-08-09 16:00 639218877956262035
40 ms 172.67.164.7
106 2026-08-09 15:46 639218869143729797
60 ms 104.21.81.202
105 2026-08-09 15:46 639218869143729797
60 ms 172.67.164.7
104 2026-08-09 15:31 639218860485298832
23 ms 104.21.81.202
103 2026-08-09 15:31 639218860485298832
23 ms 172.67.164.7
102 2026-08-09 15:16 639218851607906747
16 ms 104.21.81.202
101 2026-08-09 15:16 639218851607906747
16 ms 172.67.164.7
100 2026-08-09 15:02 639218842720839568
29 ms 104.21.81.202
99 2026-08-09 15:02 639218842720839568
29 ms 172.67.164.7
98 2026-08-09 14:47 639218833878788864
43 ms 104.21.81.202
97 2026-08-09 14:47 639218833878788864
43 ms 172.67.164.7
96 2026-08-09 14:32 639218825180862573
18 ms 172.67.164.7
95 2026-08-09 14:32 639218825180862573
18 ms 104.21.81.202
94 2026-08-09 14:18 639218816469621951
7 ms 104.21.81.202
93 2026-08-09 14:18 639218816469621951
7 ms 172.67.164.7
92 2026-08-09 14:03 639218807685036212
42 ms 104.21.81.202
91 2026-08-09 14:03 639218807685036212
42 ms 172.67.164.7
90 2026-08-09 13:49 639218798978271509
82 ms 172.67.164.7
89 2026-08-09 13:49 639218798978271509
82 ms 104.21.81.202
88 2026-08-09 13:34 639218790065423597
43 ms 104.21.81.202
87 2026-08-09 13:34 639218790065423597
43 ms 172.67.164.7
86 2026-08-09 13:19 639218781304584862
25 ms 104.21.81.202
85 2026-08-09 13:19 639218781304584862
25 ms 172.67.164.7
84 2026-08-09 12:27 639218750311179000
2048 ms 172.67.164.7
83 2026-08-09 12:27 639218750311179000
2048 ms 104.21.81.202
82 2026-08-09 12:13 639218741750420268
2039 ms 172.67.164.7
81 2026-08-09 12:13 639218741750420268
2039 ms 104.21.81.202
80 2026-08-09 11:59 639218733057535576
8 ms 104.21.81.202
79 2026-08-09 11:59 639218733057535576
8 ms 172.67.164.7
78 2026-08-09 11:44 639218724471329044
61 ms 104.21.81.202
77 2026-08-09 11:44 639218724471329044
61 ms 172.67.164.7
76 2026-08-09 11:30 639218715911974203
10 ms 172.67.164.7
75 2026-08-09 11:30 639218715911974203
10 ms 104.21.81.202
74 2026-08-09 11:15 639218707310812834
22 ms 172.67.164.7
73 2026-08-09 11:15 639218707310812834
22 ms 104.21.81.202
72 2026-08-09 11:01 639218698790485612
37 ms 104.21.81.202
71 2026-08-09 11:01 639218698790485612
37 ms 172.67.164.7
70 2026-08-09 10:47 639218690367692706
16 ms 104.21.81.202
69 2026-08-09 10:47 639218690367692706
16 ms 172.67.164.7
68 2026-08-09 10:33 639218681923173883
76 ms 172.67.164.7
67 2026-08-09 10:33 639218681923173883
76 ms 104.21.81.202
66 2026-08-09 10:19 639218673547179738
8 ms 104.21.81.202
65 2026-08-09 10:19 639218673547179738
8 ms 172.67.164.7
64 2026-08-09 10:05 639218664890274867
23 ms 172.67.164.7
63 2026-08-09 10:05 639218664890274867
23 ms 104.21.81.202
62 2026-08-09 09:50 639218656036928157
27 ms 172.67.164.7
61 2026-08-09 09:50 639218656036928157
27 ms 104.21.81.202
60 2026-08-09 08:58 639218624808018222
144 ms 172.67.164.7
59 2026-08-09 08:58 639218624808018222
144 ms 104.21.81.202
58 2026-08-09 08:44 639218616243340806
42 ms 172.67.164.7
57 2026-08-09 08:44 639218616243340806
42 ms 104.21.81.202
56 2026-08-09 08:29 639218607397811973
11 ms 104.21.81.202
55 2026-08-09 08:29 639218607397811973
11 ms 172.67.164.7
54 2026-08-09 08:15 639218598812444454
37 ms 104.21.81.202
53 2026-08-09 08:15 639218598812444454
37 ms 172.67.164.7
52 2026-08-09 08:01 639218590219570048
29 ms 172.67.164.7
51 2026-08-09 08:01 639218590219570048
29 ms 104.21.81.202
50 2026-08-09 07:47 639218581690210758
33 ms 104.21.81.202
49 2026-08-09 07:47 639218581690210758
33 ms 172.67.164.7
48 2026-08-09 07:32 639218573057388822
8 ms 104.21.81.202
47 2026-08-09 07:32 639218573057388822
8 ms 172.67.164.7
46 2026-08-09 07:18 639218564408781785
27 ms 172.67.164.7
45 2026-08-09 07:18 639218564408781785
27 ms 104.21.81.202
44 2026-08-09 07:03 639218555767188482
2120 ms 104.21.81.202
43 2026-08-09 07:03 639218555767188482
2120 ms 172.67.164.7
42 2026-08-09 06:49 639218547142705295
13 ms 104.21.81.202
41 2026-08-09 06:49 639218547142705295
13 ms 172.67.164.7
40 2026-08-09 06:34 639218538090114532
9 ms 104.21.81.202
39 2026-08-09 06:34 639218538090114532
9 ms 172.67.164.7
38 2026-08-09 06:19 639218529257910584
55 ms 172.67.164.7
37 2026-08-09 06:19 639218529257910584
55 ms 104.21.81.202
36 2026-08-09 05:27 639218498473231858
6 ms 172.67.164.7
35 2026-08-09 05:27 639218498473231858
6 ms 104.21.81.202
34 2026-08-09 05:13 639218489802113995
10 ms 104.21.81.202
33 2026-08-09 05:13 639218489802113995
10 ms 172.67.164.7
32 2026-08-09 04:58 639218481006804516
8 ms 172.67.164.7
31 2026-08-09 04:58 639218481006804516
8 ms 104.21.81.202
30 2026-08-09 04:44 639218472048712427
2019 ms 172.67.164.7
29 2026-08-09 04:44 639218472048712427
2019 ms 104.21.81.202
28 2026-08-09 04:29 639218463224432974
24 ms 104.21.81.202
27 2026-08-09 04:29 639218463224432974
24 ms 172.67.164.7
26 2026-08-09 04:14 639218454384107526
41 ms 172.67.164.7
25 2026-08-09 04:14 639218454384107526
41 ms 104.21.81.202
24 2026-08-09 03:59 639218445331231791
9 ms 172.67.164.7
23 2026-08-09 03:59 639218445331231791
9 ms 104.21.81.202
22 2026-08-09 03:44 639218436285215733
23 ms 172.67.164.7
21 2026-08-09 03:44 639218436285215733
23 ms 104.21.81.202
20 2026-08-09 03:29 639218427289555123
26 ms 172.67.164.7
19 2026-08-09 03:29 639218427289555123
26 ms 104.21.81.202
18 2026-08-09 03:14 639218418227819981
2045 ms 172.67.164.7
17 2026-08-09 03:14 639218418227819981
2045 ms 104.21.81.202
16 2026-08-09 02:59 639218409119503123
36 ms 104.21.81.202
15 2026-08-09 02:59 639218409119503123
36 ms 172.67.164.7
14 2026-08-09 02:43 639218399771712154
28 ms 172.67.164.7
13 2026-08-09 02:43 639218399771712154
28 ms 104.21.81.202
12 2026-08-09 01:53 639218368648652303
20 ms 172.67.164.7
11 2026-08-09 01:53 639218368648652303
20 ms 104.21.81.202
10 2026-08-09 01:38 639218359569598460
149 ms 172.67.164.7
9 2026-08-09 01:38 639218359569598460
149 ms 104.21.81.202
8 2026-08-09 01:23 639218350555429902
34 ms 172.67.164.7
7 2026-08-09 01:23 639218350555429902
34 ms 104.21.81.202
6 2026-08-09 01:07 639218341311543299
12 ms 104.21.81.202
5 2026-08-09 01:07 639218341311543299
12 ms 172.67.164.7
4 2026-08-09 00:15 639218309981981465
10 ms 172.67.164.7
3 2026-08-09 00:15 639218309981981465
10 ms 104.21.81.202
2 2026-08-09 00:00 639218300987184335
11 ms 172.67.164.7
1 2026-08-09 00:00 639218300987184335
11 ms 104.21.81.202