DNS response history for ns1.rackdc.com

ns1.rackdc.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 426 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 ns1.rackdc.com.
Records on Selected Date

73

Historical checks stored for this nameserver on selected date

Average Latency

426 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-21 23:56

All timestamps shown in UTC

Latest Resolved IP on Selected Date

185.35.21.245

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 ns1.rackdc.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 23:56 639229527598660841
2077 ms 185.35.21.245
72 2026-08-21 23:40 639229517954323214
90 ms 185.35.21.245
71 2026-08-21 23:24 639229508269999021
62 ms 185.35.21.245
70 2026-08-21 23:07 639229498559060171
95 ms 185.35.21.245
69 2026-08-21 22:51 639229488519347586
97 ms 185.35.21.245
68 2026-08-21 21:57 639229456606578934
4 ms 185.35.21.245
67 2026-08-21 21:41 639229446985772499
114 ms 185.35.21.245
66 2026-08-21 21:25 639229437367313098
96 ms 185.35.21.245
65 2026-08-21 21:09 639229427923950391
95 ms 185.35.21.245
64 2026-08-21 20:53 639229418168588854
77 ms 185.35.21.245
63 2026-08-21 20:37 639229408345678334
56 ms 185.35.21.245
62 2026-08-21 20:21 639229398616354648
59 ms 185.35.21.245
61 2026-08-21 20:04 639229388634592323
2018 ms 185.35.21.245
60 2026-08-21 19:48 639229378792837692
120 ms 185.35.21.245
59 2026-08-21 19:31 639229369154682311
88 ms 185.35.21.245
58 2026-08-21 19:15 639229359248017926
13 ms 185.35.21.245
57 2026-08-21 18:58 639229349124294642
15 ms 185.35.21.245
56 2026-08-21 18:06 639229317791715692
3551 ms 185.35.21.245
55 2026-08-21 17:50 639229308115194575
103 ms 185.35.21.245
54 2026-08-21 17:34 639229298320320558
55 ms 185.35.21.245
53 2026-08-21 17:17 639229288674863221
6 ms 185.35.21.245
52 2026-08-21 17:01 639229278983677079
90 ms 185.35.21.245
51 2026-08-21 16:45 639229269405517175
54 ms 185.35.21.245
50 2026-08-21 16:29 639229259594798244
91 ms 185.35.21.245
49 2026-08-21 16:13 639229249736681188
93 ms 185.35.21.245
48 2026-08-21 15:56 639229239699417787
81 ms 185.35.21.245
47 2026-08-21 15:39 639229229621964033
63 ms 185.35.21.245
46 2026-08-21 15:22 639229219567270965
3575 ms 185.35.21.245
45 2026-08-21 15:05 639229209406666856
93 ms 185.35.21.245
44 2026-08-21 14:13 639229177815876178
61 ms 185.35.21.245
43 2026-08-21 13:56 639229168243572685
92 ms 185.35.21.245
42 2026-08-21 13:41 639229158599856475
176 ms 185.35.21.245
41 2026-08-21 13:24 639229148998940902
92 ms 185.35.21.245
40 2026-08-21 13:09 639229139276923594
3 ms 185.35.21.245
39 2026-08-21 12:52 639229129709912394
76 ms 185.35.21.245
38 2026-08-21 12:36 639229119801488500
184 ms 185.35.21.245
37 2026-08-21 12:20 639229110135262458
98 ms 185.35.21.245
36 2026-08-21 12:04 639229100336051392
101 ms 185.35.21.245
35 2026-08-21 11:47 639229090641415626
95 ms 185.35.21.245
34 2026-08-21 11:31 639229080702683947
59 ms 185.35.21.245
33 2026-08-21 11:14 639229070601456699
58 ms 185.35.21.245
32 2026-08-21 10:21 639229038947447232
65 ms 185.35.21.245
31 2026-08-21 10:05 639229029268708773
88 ms 185.35.21.245
30 2026-08-21 09:49 639229019647910603
-
29 2026-08-21 09:33 639229009983843738
86 ms 185.35.21.245
28 2026-08-21 09:17 639229000203331882
93 ms 185.35.21.245
27 2026-08-21 09:00 639228990302335999
5061 ms 185.35.21.245
26 2026-08-21 08:44 639228980567740722
53 ms 185.35.21.245
25 2026-08-21 08:28 639228970762445174
1607 ms 185.35.21.245
24 2026-08-21 08:11 639228961065054445
90 ms 185.35.21.245
23 2026-08-21 07:55 639228951224649885
3 ms 185.35.21.245
22 2026-08-21 07:38 639228941303864592
72 ms 185.35.21.245
21 2026-08-21 07:22 639228931191328583
94 ms 185.35.21.245
20 2026-08-21 06:29 639228899518173317
4 ms 185.35.21.245
19 2026-08-21 06:13 639228889785027669
58 ms 185.35.21.245
18 2026-08-21 05:57 639228880106330161
2051 ms 185.35.21.245
17 2026-08-21 05:40 639228870316184091
108 ms 185.35.21.245
16 2026-08-21 05:24 639228860695366512
8 ms 185.35.21.245
15 2026-08-21 05:08 639228851027209500
68 ms 185.35.21.245
14 2026-08-21 04:52 639228841479265462
93 ms 185.35.21.245
13 2026-08-21 04:36 639228831752962260
30 ms 185.35.21.245
12 2026-08-21 04:20 639228821953295483
86 ms 185.35.21.245
11 2026-08-21 04:03 639228812227429953
2 ms 185.35.21.245
10 2026-08-21 03:47 639228802476107538
2083 ms 185.35.21.245
9 2026-08-21 03:31 639228792525492032
88 ms 185.35.21.245
8 2026-08-21 02:38 639228761131421385
2050 ms 185.35.21.245
7 2026-08-21 02:22 639228751571206692
2055 ms 185.35.21.245
6 2026-08-21 02:06 639228741705571019
3 ms 185.35.21.245
5 2026-08-21 01:49 639228731642208228
84 ms 185.35.21.245
4 2026-08-21 00:57 639228700387002072
61 ms 185.35.21.245
3 2026-08-21 00:41 639228690742014433
89 ms 185.35.21.245
2 2026-08-21 00:24 639228680877937122
91 ms 185.35.21.245
1 2026-08-21 00:08 639228670775860800
89 ms 185.35.21.245