DNS response history for ns4.mcmaster.com

ns4.mcmaster.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 72 DNS check records, 72 successful responses, 0 failed responses, and 254 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 ns4.mcmaster.com.
Records on Selected Date

72

Historical checks stored for this nameserver on selected date

Average Latency

254 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-17 23:55

All timestamps shown in UTC

Latest Resolved IP on Selected Date

12.203.197.21

Most recently resolved hosting IP on selected date

Successful Responses

72

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 ns4.mcmaster.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
72 2026-08-17 23:55 639226072268080268
112 ms 12.203.197.21
71 2026-08-17 23:38 639226062577647657
147 ms 12.203.197.21
70 2026-08-17 22:46 639226031060857136
166 ms 12.203.197.21
69 2026-08-17 22:30 639226021535117364
28 ms 12.203.197.21
68 2026-08-17 22:14 639226011884237078
140 ms 12.203.197.21
67 2026-08-17 21:58 639226002309299142
29 ms 12.203.197.21
66 2026-08-17 21:42 639225992791784448
118 ms 12.203.197.21
65 2026-08-17 21:26 639225983045271390
119 ms 12.203.197.21
64 2026-08-17 21:10 639225973246293513
37 ms 12.203.197.21
63 2026-08-17 20:54 639225963620186236
121 ms 12.203.197.21
62 2026-08-17 20:37 639225953899183916
123 ms 12.203.197.21
61 2026-08-17 20:21 639225944391528206
59 ms 12.203.197.21
60 2026-08-17 20:05 639225934593254169
10 ms 12.203.197.21
59 2026-08-17 19:49 639225924669984512
114 ms 12.203.197.21
58 2026-08-17 18:56 639225893048561320
9 ms 12.203.197.21
57 2026-08-17 18:40 639225883481298424
31 ms 12.203.197.21
56 2026-08-17 18:24 639225873845394034
115 ms 12.203.197.21
55 2026-08-17 18:08 639225864216078662
4115 ms 12.203.197.21
54 2026-08-17 17:52 639225854541857773
10 ms 12.203.197.21
53 2026-08-17 17:36 639225844733604072
75 ms 12.203.197.21
52 2026-08-17 17:19 639225835085229232
18 ms 12.203.197.21
51 2026-08-17 17:03 639225825349373981
121 ms 12.203.197.21
50 2026-08-17 16:47 639225815690604161
40 ms 12.203.197.21
49 2026-08-17 16:31 639225805952472306
39 ms 12.203.197.21
48 2026-08-17 16:15 639225796264729638
123 ms 12.203.197.21
47 2026-08-17 15:58 639225786326499329
54 ms 12.203.197.21
46 2026-08-17 15:06 639225754798130711
113 ms 12.203.197.21
45 2026-08-17 14:49 639225745123193922
19 ms 12.203.197.21
44 2026-08-17 14:33 639225735540597271
119 ms 12.203.197.21
43 2026-08-17 14:17 639225725894857396
109 ms 12.203.197.21
42 2026-08-17 14:01 639225716249606913
117 ms 12.203.197.21
41 2026-08-17 13:45 639225706638238179
111 ms 12.203.197.21
40 2026-08-17 13:29 639225696949691423
117 ms 12.203.197.21
39 2026-08-17 13:13 639225687286186336
33 ms 12.203.197.21
38 2026-08-17 12:57 639225677679573133
113 ms 12.203.197.21
37 2026-08-17 12:41 639225667957861024
124 ms 12.203.197.21
36 2026-08-17 12:25 639225658298791618
130 ms 12.203.197.21
35 2026-08-17 12:08 639225648583652785
2012 ms 12.203.197.21
34 2026-08-17 11:16 639225617000524308
29 ms 12.203.197.21
33 2026-08-17 11:00 639225607668541600
136 ms 12.203.197.21
32 2026-08-17 10:44 639225598117279238
2019 ms 12.203.197.21
31 2026-08-17 10:29 639225588751002710
128 ms 12.203.197.21
30 2026-08-17 10:13 639225579295831051
127 ms 12.203.197.21
29 2026-08-17 09:57 639225569761469940
112 ms 12.203.197.21
28 2026-08-17 09:41 639225560161422333
127 ms 12.203.197.21
27 2026-08-17 09:25 639225550739955565
109 ms 12.203.197.21
26 2026-08-17 09:09 639225541125222426
12 ms 12.203.197.21
25 2026-08-17 08:53 639225531526675983
117 ms 12.203.197.21
24 2026-08-17 08:37 639225521915528222
15 ms 12.203.197.21
23 2026-08-17 08:21 639225512148151789
121 ms 12.203.197.21
22 2026-08-17 07:29 639225480786142412
116 ms 12.203.197.21
21 2026-08-17 07:13 639225471394348551
133 ms 12.203.197.21
20 2026-08-17 06:57 639225462031685068
138 ms 12.203.197.21
19 2026-08-17 06:42 639225452639458328
118 ms 12.203.197.21
18 2026-08-17 06:26 639225443300966543
38 ms 12.203.197.21
17 2026-08-17 06:11 639225433880499379
4127 ms 12.203.197.21
16 2026-08-17 05:55 639225424395198277
126 ms 12.203.197.21
15 2026-08-17 05:39 639225414744137487
22 ms 12.203.197.21
14 2026-08-17 05:23 639225405186783164
124 ms 12.203.197.21
13 2026-08-17 05:07 639225395563669822
119 ms 12.203.197.21
12 2026-08-17 04:51 639225386076645158
12 ms 12.203.197.21
11 2026-08-17 04:35 639225376620669704
113 ms 12.203.197.21
10 2026-08-17 03:43 639225345580892706
15 ms 12.203.197.21
9 2026-08-17 03:28 639225336207383710
113 ms 12.203.197.21
8 2026-08-17 03:12 639225326726565001
12 ms 12.203.197.21
7 2026-08-17 02:56 639225317249271010
121 ms 12.203.197.21
6 2026-08-17 02:04 639225286280886044
111 ms 12.203.197.21
5 2026-08-17 01:49 639225276872567548
118 ms 12.203.197.21
4 2026-08-17 01:33 639225267353865348
127 ms 12.203.197.21
3 2026-08-17 01:17 639225258033914248
117 ms 12.203.197.21
2 2026-08-17 00:25 639225226652221583
112 ms 12.203.197.21
1 2026-08-17 00:10 639225217156387684
11 ms 12.203.197.21