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 2026-08-17. For this date, NameServerHistory found 143 DNS check records, 142 successful responses, 1 failed responses, and 91 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

143

Historical checks stored for this nameserver on selected date

Average Latency

91 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-17 23:47

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

142

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.optionalarm.com

Showing DNS history for 2026-08-17 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
143 2026-08-17 23:47 639226072268080268
9 ms 172.67.164.7
142 2026-08-17 23:47 639226072268080268
9 ms 104.21.81.202
141 2026-08-17 23:31 639226062577647657
15 ms 172.67.164.7
140 2026-08-17 23:31 639226062577647657
15 ms 104.21.81.202
139 2026-08-17 22:38 639226031060857136
7 ms 104.21.81.202
138 2026-08-17 22:38 639226031060857136
7 ms 172.67.164.7
137 2026-08-17 22:22 639226021535117364
7 ms 104.21.81.202
136 2026-08-17 22:22 639226021535117364
7 ms 172.67.164.7
135 2026-08-17 22:06 639226011884237078
-
134 2026-08-17 21:50 639226002309299142
14 ms 172.67.164.7
133 2026-08-17 21:50 639226002309299142
14 ms 104.21.81.202
132 2026-08-17 21:34 639225992791784448
61 ms 104.21.81.202
131 2026-08-17 21:34 639225992791784448
61 ms 172.67.164.7
130 2026-08-17 21:18 639225983045271390
22 ms 172.67.164.7
129 2026-08-17 21:18 639225983045271390
22 ms 104.21.81.202
128 2026-08-17 21:02 639225973246293513
45 ms 172.67.164.7
127 2026-08-17 21:02 639225973246293513
45 ms 104.21.81.202
126 2026-08-17 20:46 639225963620186236
37 ms 104.21.81.202
125 2026-08-17 20:46 639225963620186236
37 ms 172.67.164.7
124 2026-08-17 20:29 639225953899183916
19 ms 172.67.164.7
123 2026-08-17 20:29 639225953899183916
19 ms 104.21.81.202
122 2026-08-17 20:14 639225944391528206
7 ms 172.67.164.7
121 2026-08-17 20:14 639225944391528206
7 ms 104.21.81.202
120 2026-08-17 19:57 639225934593254169
6 ms 172.67.164.7
119 2026-08-17 19:57 639225934593254169
6 ms 104.21.81.202
118 2026-08-17 19:41 639225924669984512
9 ms 172.67.164.7
117 2026-08-17 19:41 639225924669984512
9 ms 104.21.81.202
116 2026-08-17 18:48 639225893048561320
28 ms 172.67.164.7
115 2026-08-17 18:48 639225893048561320
28 ms 104.21.81.202
114 2026-08-17 18:32 639225883481298424
6 ms 104.21.81.202
113 2026-08-17 18:32 639225883481298424
6 ms 172.67.164.7
112 2026-08-17 18:16 639225873845394034
44 ms 104.21.81.202
111 2026-08-17 18:16 639225873845394034
44 ms 172.67.164.7
110 2026-08-17 18:00 639225864216078662
68 ms 104.21.81.202
109 2026-08-17 18:00 639225864216078662
68 ms 172.67.164.7
108 2026-08-17 17:44 639225854541857773
16 ms 104.21.81.202
107 2026-08-17 17:44 639225854541857773
16 ms 172.67.164.7
106 2026-08-17 17:27 639225844733604072
23 ms 104.21.81.202
105 2026-08-17 17:27 639225844733604072
23 ms 172.67.164.7
104 2026-08-17 17:11 639225835085229232
2041 ms 172.67.164.7
103 2026-08-17 17:11 639225835085229232
2041 ms 104.21.81.202
102 2026-08-17 16:55 639225825349373981
15 ms 172.67.164.7
101 2026-08-17 16:55 639225825349373981
15 ms 104.21.81.202
100 2026-08-17 16:39 639225815690604161
35 ms 172.67.164.7
99 2026-08-17 16:39 639225815690604161
35 ms 104.21.81.202
98 2026-08-17 16:23 639225805952472306
13 ms 172.67.164.7
97 2026-08-17 16:23 639225805952472306
13 ms 104.21.81.202
96 2026-08-17 16:07 639225796264729638
33 ms 104.21.81.202
95 2026-08-17 16:07 639225796264729638
33 ms 172.67.164.7
94 2026-08-17 15:50 639225786326499329
52 ms 172.67.164.7
93 2026-08-17 15:50 639225786326499329
52 ms 104.21.81.202
92 2026-08-17 14:58 639225754798130711
52 ms 172.67.164.7
91 2026-08-17 14:58 639225754798130711
52 ms 104.21.81.202
90 2026-08-17 14:41 639225745123193922
19 ms 104.21.81.202
89 2026-08-17 14:41 639225745123193922
19 ms 172.67.164.7
88 2026-08-17 14:25 639225735540597271
50 ms 172.67.164.7
87 2026-08-17 14:25 639225735540597271
50 ms 104.21.81.202
86 2026-08-17 14:09 639225725894857396
27 ms 104.21.81.202
85 2026-08-17 14:09 639225725894857396
27 ms 172.67.164.7
84 2026-08-17 13:53 639225716249606913
34 ms 104.21.81.202
83 2026-08-17 13:53 639225716249606913
34 ms 172.67.164.7
82 2026-08-17 13:37 639225706638238179
25 ms 172.67.164.7
81 2026-08-17 13:37 639225706638238179
25 ms 104.21.81.202
80 2026-08-17 13:21 639225696949691423
10 ms 104.21.81.202
79 2026-08-17 13:21 639225696949691423
10 ms 172.67.164.7
78 2026-08-17 13:05 639225687286186336
30 ms 172.67.164.7
77 2026-08-17 13:05 639225687286186336
30 ms 104.21.81.202
76 2026-08-17 12:49 639225677679573133
34 ms 172.67.164.7
75 2026-08-17 12:49 639225677679573133
34 ms 104.21.81.202
74 2026-08-17 12:33 639225667957861024
9 ms 172.67.164.7
73 2026-08-17 12:33 639225667957861024
9 ms 104.21.81.202
72 2026-08-17 12:17 639225658298791618
12 ms 104.21.81.202
71 2026-08-17 12:17 639225658298791618
12 ms 172.67.164.7
70 2026-08-17 12:01 639225648583652785
49 ms 172.67.164.7
69 2026-08-17 12:01 639225648583652785
49 ms 104.21.81.202
68 2026-08-17 11:08 639225617000524308
13 ms 172.67.164.7
67 2026-08-17 11:08 639225617000524308
13 ms 104.21.81.202
66 2026-08-17 10:52 639225607668541600
33 ms 172.67.164.7
65 2026-08-17 10:52 639225607668541600
33 ms 104.21.81.202
64 2026-08-17 10:36 639225598117279238
2079 ms 104.21.81.202
63 2026-08-17 10:36 639225598117279238
2079 ms 172.67.164.7
62 2026-08-17 10:21 639225588751002710
58 ms 104.21.81.202
61 2026-08-17 10:21 639225588751002710
58 ms 172.67.164.7
60 2026-08-17 10:05 639225579295831051
51 ms 172.67.164.7
59 2026-08-17 10:05 639225579295831051
51 ms 104.21.81.202
58 2026-08-17 09:49 639225569761469940
111 ms 104.21.81.202
57 2026-08-17 09:49 639225569761469940
111 ms 172.67.164.7
56 2026-08-17 09:33 639225560161422333
45 ms 104.21.81.202
55 2026-08-17 09:33 639225560161422333
45 ms 172.67.164.7
54 2026-08-17 09:17 639225550739955565
14 ms 172.67.164.7
53 2026-08-17 09:17 639225550739955565
14 ms 104.21.81.202
52 2026-08-17 09:01 639225541125222426
17 ms 172.67.164.7
51 2026-08-17 09:01 639225541125222426
17 ms 104.21.81.202
50 2026-08-17 08:45 639225531526675983
30 ms 104.21.81.202
49 2026-08-17 08:45 639225531526675983
30 ms 172.67.164.7
48 2026-08-17 08:29 639225521915528222
26 ms 172.67.164.7
47 2026-08-17 08:29 639225521915528222
26 ms 104.21.81.202
46 2026-08-17 08:13 639225512148151789
28 ms 104.21.81.202
45 2026-08-17 08:13 639225512148151789
28 ms 172.67.164.7
44 2026-08-17 07:21 639225480786142412
31 ms 172.67.164.7
43 2026-08-17 07:21 639225480786142412
31 ms 104.21.81.202
42 2026-08-17 07:05 639225471394348551
26 ms 104.21.81.202
41 2026-08-17 07:05 639225471394348551
26 ms 172.67.164.7
40 2026-08-17 06:50 639225462031685068
24 ms 104.21.81.202
39 2026-08-17 06:50 639225462031685068
24 ms 172.67.164.7
38 2026-08-17 06:34 639225452639458328
17 ms 104.21.81.202
37 2026-08-17 06:34 639225452639458328
17 ms 172.67.164.7
36 2026-08-17 06:18 639225443300966543
41 ms 172.67.164.7
35 2026-08-17 06:18 639225443300966543
41 ms 104.21.81.202
34 2026-08-17 06:03 639225433880499379
14 ms 172.67.164.7
33 2026-08-17 06:03 639225433880499379
14 ms 104.21.81.202
32 2026-08-17 05:47 639225424395198277
109 ms 104.21.81.202
31 2026-08-17 05:47 639225424395198277
109 ms 172.67.164.7
30 2026-08-17 05:31 639225414744137487
72 ms 172.67.164.7
29 2026-08-17 05:31 639225414744137487
72 ms 104.21.81.202
28 2026-08-17 05:15 639225405186783164
96 ms 104.21.81.202
27 2026-08-17 05:15 639225405186783164
96 ms 172.67.164.7
26 2026-08-17 04:59 639225395563669822
56 ms 104.21.81.202
25 2026-08-17 04:59 639225395563669822
56 ms 172.67.164.7
24 2026-08-17 04:43 639225386076645158
43 ms 104.21.81.202
23 2026-08-17 04:43 639225386076645158
43 ms 172.67.164.7
22 2026-08-17 04:27 639225376620669704
191 ms 172.67.164.7
21 2026-08-17 04:27 639225376620669704
191 ms 104.21.81.202
20 2026-08-17 03:36 639225345580892706
8 ms 104.21.81.202
19 2026-08-17 03:36 639225345580892706
8 ms 172.67.164.7
18 2026-08-17 03:20 639225336207383710
21 ms 104.21.81.202
17 2026-08-17 03:20 639225336207383710
21 ms 172.67.164.7
16 2026-08-17 03:04 639225326726565001
9 ms 104.21.81.202
15 2026-08-17 03:04 639225326726565001
9 ms 172.67.164.7
14 2026-08-17 02:48 639225317249271010
14 ms 104.21.81.202
13 2026-08-17 02:48 639225317249271010
14 ms 172.67.164.7
12 2026-08-17 01:57 639225286280886044
26 ms 104.21.81.202
11 2026-08-17 01:57 639225286280886044
26 ms 172.67.164.7
10 2026-08-17 01:41 639225276872567548
30 ms 104.21.81.202
9 2026-08-17 01:41 639225276872567548
30 ms 172.67.164.7
8 2026-08-17 01:25 639225267353865348
34 ms 172.67.164.7
7 2026-08-17 01:25 639225267353865348
34 ms 104.21.81.202
6 2026-08-17 01:10 639225258033914248
21 ms 172.67.164.7
5 2026-08-17 01:10 639225258033914248
21 ms 104.21.81.202
4 2026-08-17 00:17 639225226652221583
54 ms 104.21.81.202
3 2026-08-17 00:17 639225226652221583
54 ms 172.67.164.7
2 2026-08-17 00:02 639225217156387684
55 ms 104.21.81.202
1 2026-08-17 00:02 639225217156387684
55 ms 172.67.164.7