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 2026-08-26. For this date, NameServerHistory found 80 DNS check records, 78 successful responses, 2 failed responses, and 85 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

80

Historical checks stored for this nameserver on selected date

Average Latency

85 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 13:27

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

78

Checks that returned a measurable response

Failed Responses

2

Checks with no response or no returned latency

Failure Rate

2%

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 2026-08-26 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
80 2026-08-26 13:27 639233476455174682
19 ms 104.21.81.202
79 2026-08-26 13:27 639233476455174682
19 ms 172.67.164.7
78 2026-08-26 13:10 639233466171592605
8 ms 104.21.81.202
77 2026-08-26 13:10 639233466171592605
8 ms 172.67.164.7
76 2026-08-26 12:53 639233455747096265
96 ms 172.67.164.7
75 2026-08-26 12:53 639233455747096265
96 ms 104.21.81.202
74 2026-08-26 12:35 639233445367152284
35 ms 104.21.81.202
73 2026-08-26 12:35 639233445367152284
35 ms 172.67.164.7
72 2026-08-26 12:18 639233434974187439
35 ms 172.67.164.7
71 2026-08-26 12:18 639233434974187439
35 ms 104.21.81.202
70 2026-08-26 12:01 639233424567558554
22 ms 104.21.81.202
69 2026-08-26 12:01 639233424567558554
22 ms 172.67.164.7
68 2026-08-26 11:43 639233414056832719
40 ms 172.67.164.7
67 2026-08-26 11:43 639233414056832719
40 ms 104.21.81.202
66 2026-08-26 11:25 639233403515141099
8 ms 172.67.164.7
65 2026-08-26 11:25 639233403515141099
8 ms 104.21.81.202
64 2026-08-26 10:31 639233370841350248
4 ms 104.21.81.202
63 2026-08-26 10:31 639233370841350248
4 ms 172.67.164.7
62 2026-08-26 10:14 639233360361507238
19 ms 172.67.164.7
61 2026-08-26 10:14 639233360361507238
19 ms 104.21.81.202
60 2026-08-26 09:56 639233350067824371
28 ms 104.21.81.202
59 2026-08-26 09:56 639233350067824371
28 ms 172.67.164.7
58 2026-08-26 09:39 639233339545274518
116 ms 104.21.81.202
57 2026-08-26 09:39 639233339545274518
116 ms 172.67.164.7
56 2026-08-26 09:22 639233329214918079
42 ms 172.67.164.7
55 2026-08-26 09:22 639233329214918079
42 ms 104.21.81.202
54 2026-08-26 09:04 639233318749762337
59 ms 172.67.164.7
53 2026-08-26 09:04 639233318749762337
59 ms 104.21.81.202
52 2026-08-26 08:47 639233308387917838
15 ms 104.21.81.202
51 2026-08-26 08:47 639233308387917838
15 ms 172.67.164.7
50 2026-08-26 08:30 639233297961740122
64 ms 104.21.81.202
49 2026-08-26 08:30 639233297961740122
64 ms 172.67.164.7
48 2026-08-26 08:12 639233287487159094
17 ms 104.21.81.202
47 2026-08-26 08:12 639233287487159094
17 ms 172.67.164.7
46 2026-08-26 07:55 639233276995531707
99 ms 172.67.164.7
45 2026-08-26 07:55 639233276995531707
99 ms 104.21.81.202
44 2026-08-26 07:37 639233266521568229
32 ms 172.67.164.7
43 2026-08-26 07:37 639233266521568229
32 ms 104.21.81.202
42 2026-08-26 07:20 639233256081047431
2033 ms 104.21.81.202
41 2026-08-26 07:20 639233256081047431
2033 ms 172.67.164.7
40 2026-08-26 06:26 639233223620132921
10 ms 172.67.164.7
39 2026-08-26 06:26 639233223620132921
10 ms 104.21.81.202
38 2026-08-26 06:08 639233213287814244
77 ms 104.21.81.202
37 2026-08-26 06:08 639233213287814244
77 ms 172.67.164.7
36 2026-08-26 05:51 639233202925983161
39 ms 172.67.164.7
35 2026-08-26 05:51 639233202925983161
39 ms 104.21.81.202
34 2026-08-26 05:34 639233192644780696
34 ms 172.67.164.7
33 2026-08-26 05:34 639233192644780696
34 ms 104.21.81.202
32 2026-08-26 05:17 639233182401183833
-
31 2026-08-26 05:00 639233172074181051
11 ms 104.21.81.202
30 2026-08-26 05:00 639233172074181051
11 ms 172.67.164.7
29 2026-08-26 04:43 639233161808421455
34 ms 104.21.81.202
28 2026-08-26 04:43 639233161808421455
34 ms 172.67.164.7
27 2026-08-26 04:25 639233151357344052
5 ms 104.21.81.202
26 2026-08-26 04:25 639233151357344052
5 ms 172.67.164.7
25 2026-08-26 04:08 639233141034116946
50 ms 104.21.81.202
24 2026-08-26 04:08 639233141034116946
50 ms 172.67.164.7
23 2026-08-26 03:51 639233130828334142
10 ms 172.67.164.7
22 2026-08-26 03:51 639233130828334142
10 ms 104.21.81.202
21 2026-08-26 03:34 639233120373450007
53 ms 104.21.81.202
20 2026-08-26 03:34 639233120373450007
53 ms 172.67.164.7
19 2026-08-26 03:16 639233110066216193
30 ms 172.67.164.7
18 2026-08-26 03:16 639233110066216193
30 ms 104.21.81.202
17 2026-08-26 02:23 639233078065410564
-
16 2026-08-26 02:06 639233067787457832
21 ms 104.21.81.202
15 2026-08-26 02:06 639233067787457832
21 ms 172.67.164.7
14 2026-08-26 01:49 639233057501801162
30 ms 172.67.164.7
13 2026-08-26 01:49 639233057501801162
30 ms 104.21.81.202
12 2026-08-26 01:31 639233047089431703
26 ms 104.21.81.202
11 2026-08-26 01:31 639233047089431703
26 ms 172.67.164.7
10 2026-08-26 01:14 639233036754790688
39 ms 104.21.81.202
9 2026-08-26 01:14 639233036754790688
39 ms 172.67.164.7
8 2026-08-26 00:57 639233026412602472
10 ms 172.67.164.7
7 2026-08-26 00:57 639233026412602472
10 ms 104.21.81.202
6 2026-08-26 00:40 639233016064066127
4 ms 104.21.81.202
5 2026-08-26 00:40 639233016064066127
4 ms 172.67.164.7
4 2026-08-26 00:23 639233005922655772
15 ms 104.21.81.202
3 2026-08-26 00:23 639233005922655772
15 ms 172.67.164.7
2 2026-08-26 00:06 639232995672256907
12 ms 172.67.164.7
1 2026-08-26 00:06 639232995672256907
12 ms 104.21.81.202