DNS response history for ns4.upstreamsystems.com

ns4.upstreamsystems.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 2026-08-21. For this date, NameServerHistory found 73 DNS check records, 72 successful responses, 1 failed responses, and 171 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.upstreamsystems.com.
Records on Selected Date

73

Historical checks stored for this nameserver on selected date

Average Latency

171 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-21 23:51

All timestamps shown in UTC

Latest Resolved IP on Selected Date

91.241.94.206

Most recently resolved hosting IP on selected date

Successful Responses

72

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 ns4.upstreamsystems.com

Showing DNS history for 2026-08-21 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
73 2026-08-21 23:51 639229527598660841
56 ms 91.241.94.206
72 2026-08-21 23:35 639229517954323214
116 ms 91.241.94.206
71 2026-08-21 23:19 639229508269999021
71 ms 91.241.94.206
70 2026-08-21 23:03 639229498559060171
60 ms 91.241.94.206
69 2026-08-21 22:46 639229488519347586
128 ms 91.241.94.206
68 2026-08-21 21:53 639229456606578934
142 ms 91.241.94.206
67 2026-08-21 21:37 639229446985772499
209 ms 91.241.94.206
66 2026-08-21 21:21 639229437367313098
53 ms 91.241.94.206
65 2026-08-21 21:05 639229427923950391
105 ms 91.241.94.206
64 2026-08-21 20:49 639229418168588854
92 ms 91.241.94.206
63 2026-08-21 20:33 639229408345678334
109 ms 91.241.94.206
62 2026-08-21 20:16 639229398616354648
87 ms 91.241.94.206
61 2026-08-21 20:00 639229388634592323
103 ms 91.241.94.206
60 2026-08-21 19:43 639229378792837692
94 ms 91.241.94.206
59 2026-08-21 19:27 639229369154682311
47 ms 91.241.94.206
58 2026-08-21 19:11 639229359248017926
89 ms 91.241.94.206
57 2026-08-21 18:54 639229349124294642
81 ms 91.241.94.206
56 2026-08-21 18:02 639229317791715692
135 ms 91.241.94.206
55 2026-08-21 17:46 639229308115194575
50 ms 91.241.94.206
54 2026-08-21 17:29 639229298320320558
2058 ms 91.241.94.206
53 2026-08-21 17:13 639229288674863221
80 ms 91.241.94.206
52 2026-08-21 16:57 639229278983677079
112 ms 91.241.94.206
51 2026-08-21 16:41 639229269405517175
118 ms 91.241.94.206
50 2026-08-21 16:25 639229259594798244
122 ms 91.241.94.206
49 2026-08-21 16:08 639229249736681188
56 ms 91.241.94.206
48 2026-08-21 15:52 639229239699417787
92 ms 91.241.94.206
47 2026-08-21 15:35 639229229621964033
48 ms 91.241.94.206
46 2026-08-21 15:18 639229219567270965
110 ms 91.241.94.206
45 2026-08-21 15:01 639229209406666856
64 ms 91.241.94.206
44 2026-08-21 14:08 639229177815876178
56 ms 91.241.94.206
43 2026-08-21 13:52 639229168243572685
97 ms 91.241.94.206
42 2026-08-21 13:36 639229158599856475
108 ms 91.241.94.206
41 2026-08-21 13:20 639229148998940902
93 ms 91.241.94.206
40 2026-08-21 13:04 639229139276923594
86 ms 91.241.94.206
39 2026-08-21 12:48 639229129709912394
57 ms 91.241.94.206
38 2026-08-21 12:32 639229119801488500
104 ms 91.241.94.206
37 2026-08-21 12:15 639229110135262458
-
36 2026-08-21 11:59 639229100336051392
126 ms 91.241.94.206
35 2026-08-21 11:43 639229090641415626
113 ms 91.241.94.206
34 2026-08-21 11:26 639229080702683947
52 ms 91.241.94.206
33 2026-08-21 11:10 639229070601456699
111 ms 91.241.94.206
32 2026-08-21 10:17 639229038947447232
74 ms 91.241.94.206
31 2026-08-21 10:01 639229029268708773
111 ms 91.241.94.206
30 2026-08-21 09:45 639229019647910603
74 ms 91.241.94.206
29 2026-08-21 09:29 639229009983843738
95 ms 91.241.94.206
28 2026-08-21 09:12 639229000203331882
53 ms 91.241.94.206
27 2026-08-21 08:56 639228990302335999
111 ms 91.241.94.206
26 2026-08-21 08:40 639228980567740722
108 ms 91.241.94.206
25 2026-08-21 08:23 639228970762445174
100 ms 91.241.94.206
24 2026-08-21 08:07 639228961065054445
117 ms 91.241.94.206
23 2026-08-21 07:51 639228951224649885
52 ms 91.241.94.206
22 2026-08-21 07:34 639228941303864592
77 ms 91.241.94.206
21 2026-08-21 07:17 639228931191328583
100 ms 91.241.94.206
20 2026-08-21 06:25 639228899518173317
78 ms 91.241.94.206
19 2026-08-21 06:08 639228889785027669
91 ms 91.241.94.206
18 2026-08-21 05:52 639228880106330161
209 ms 91.241.94.206
17 2026-08-21 05:36 639228870316184091
48 ms 91.241.94.206
16 2026-08-21 05:20 639228860695366512
101 ms 91.241.94.206
15 2026-08-21 05:04 639228851027209500
87 ms 91.241.94.206
14 2026-08-21 04:48 639228841479265462
102 ms 91.241.94.206
13 2026-08-21 04:32 639228831752962260
74 ms 91.241.94.206
12 2026-08-21 04:15 639228821953295483
48 ms 91.241.94.206
11 2026-08-21 03:59 639228812227429953
65 ms 91.241.94.206
10 2026-08-21 03:43 639228802476107538
87 ms 91.241.94.206
9 2026-08-21 03:26 639228792525492032
63 ms 91.241.94.206
8 2026-08-21 02:34 639228761131421385
2091 ms 91.241.94.206
7 2026-08-21 02:18 639228751571206692
78 ms 91.241.94.206
6 2026-08-21 02:02 639228741705571019
2051 ms 91.241.94.206
5 2026-08-21 01:45 639228731642208228
57 ms 91.241.94.206
4 2026-08-21 00:53 639228700387002072
53 ms 91.241.94.206
3 2026-08-21 00:36 639228690742014433
47 ms 91.241.94.206
2 2026-08-21 00:20 639228680877937122
91 ms 91.241.94.206
1 2026-08-21 00:03 639228670775860800
9 ms 91.241.94.206