DNS response history for ns01.4-sys.com

ns01.4-sys.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, 73 successful responses, 0 failed responses, and 479 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 ns01.4-sys.com.
Records on Selected Date

73

Historical checks stored for this nameserver on selected date

Average Latency

479 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-21 23:58

All timestamps shown in UTC

Latest Resolved IP on Selected Date

203.152.217.34

Most recently resolved hosting IP on selected date

Successful Responses

73

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 ns01.4-sys.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 23:58 639229527598660841
276 ms 203.152.217.34
72 2026-08-21 23:43 639229517954323214
2011 ms 203.152.217.34
71 2026-08-21 23:26 639229508269999021
538 ms 203.152.217.34
70 2026-08-21 23:10 639229498559060171
3 ms 203.152.217.34
69 2026-08-21 22:54 639229488519347586
543 ms 203.152.217.34
68 2026-08-21 22:00 639229456606578934
540 ms 203.152.217.34
67 2026-08-21 21:44 639229446985772499
542 ms 203.152.217.34
66 2026-08-21 21:28 639229437367313098
534 ms 203.152.217.34
65 2026-08-21 21:12 639229427923950391
536 ms 203.152.217.34
64 2026-08-21 20:56 639229418168588854
253 ms 203.152.217.34
63 2026-08-21 20:40 639229408345678334
2256 ms 203.152.217.34
62 2026-08-21 20:24 639229398616354648
251 ms 203.152.217.34
61 2026-08-21 20:07 639229388634592323
267 ms 203.152.217.34
60 2026-08-21 19:51 639229378792837692
544 ms 203.152.217.34
59 2026-08-21 19:34 639229369154682311
542 ms 203.152.217.34
58 2026-08-21 19:18 639229359248017926
543 ms 203.152.217.34
57 2026-08-21 19:01 639229349124294642
561 ms 203.152.217.34
56 2026-08-21 18:09 639229317791715692
558 ms 203.152.217.34
55 2026-08-21 17:53 639229308115194575
554 ms 203.152.217.34
54 2026-08-21 17:37 639229298320320558
560 ms 203.152.217.34
53 2026-08-21 17:20 639229288674863221
557 ms 203.152.217.34
52 2026-08-21 17:04 639229278983677079
559 ms 203.152.217.34
51 2026-08-21 16:48 639229269405517175
2 ms 203.152.217.34
50 2026-08-21 16:32 639229259594798244
556 ms 203.152.217.34
49 2026-08-21 16:16 639229249736681188
555 ms 203.152.217.34
48 2026-08-21 15:59 639229239699417787
562 ms 203.152.217.34
47 2026-08-21 15:42 639229229621964033
576 ms 203.152.217.34
46 2026-08-21 15:25 639229219567270965
4 ms 203.152.217.34
45 2026-08-21 15:09 639229209406666856
558 ms 203.152.217.34
44 2026-08-21 14:16 639229177815876178
567 ms 203.152.217.34
43 2026-08-21 13:59 639229168243572685
4 ms 203.152.217.34
42 2026-08-21 13:43 639229158599856475
558 ms 203.152.217.34
41 2026-08-21 13:27 639229148998940902
569 ms 203.152.217.34
40 2026-08-21 13:11 639229139276923594
554 ms 203.152.217.34
39 2026-08-21 12:55 639229129709912394
559 ms 203.152.217.34
38 2026-08-21 12:39 639229119801488500
270 ms 203.152.217.34
37 2026-08-21 12:23 639229110135262458
2364 ms 203.152.217.34
36 2026-08-21 12:06 639229100336051392
8 ms 203.152.217.34
35 2026-08-21 11:50 639229090641415626
8 ms 203.152.217.34
34 2026-08-21 11:34 639229080702683947
558 ms 203.152.217.34
33 2026-08-21 11:17 639229070601456699
560 ms 203.152.217.34
32 2026-08-21 10:24 639229038947447232
545 ms 203.152.217.34
31 2026-08-21 10:08 639229029268708773
3 ms 203.152.217.34
30 2026-08-21 09:52 639229019647910603
4 ms 203.152.217.34
29 2026-08-21 09:36 639229009983843738
537 ms 203.152.217.34
28 2026-08-21 09:20 639229000203331882
539 ms 203.152.217.34
27 2026-08-21 09:03 639228990302335999
4 ms 203.152.217.34
26 2026-08-21 08:47 639228980567740722
543 ms 203.152.217.34
25 2026-08-21 08:30 639228970762445174
534 ms 203.152.217.34
24 2026-08-21 08:14 639228961065054445
542 ms 203.152.217.34
23 2026-08-21 07:58 639228951224649885
555 ms 203.152.217.34
22 2026-08-21 07:41 639228941303864592
7 ms 203.152.217.34
21 2026-08-21 07:25 639228931191328583
286 ms 203.152.217.34
20 2026-08-21 06:32 639228899518173317
542 ms 203.152.217.34
19 2026-08-21 06:16 639228889785027669
536 ms 203.152.217.34
18 2026-08-21 05:59 639228880106330161
3 ms 203.152.217.34
17 2026-08-21 05:43 639228870316184091
250 ms 203.152.217.34
16 2026-08-21 05:27 639228860695366512
540 ms 203.152.217.34
15 2026-08-21 05:11 639228851027209500
542 ms 203.152.217.34
14 2026-08-21 04:55 639228841479265462
2 ms 203.152.217.34
13 2026-08-21 04:39 639228831752962260
539 ms 203.152.217.34
12 2026-08-21 04:23 639228821953295483
274 ms 203.152.217.34
11 2026-08-21 04:06 639228812227429953
539 ms 203.152.217.34
10 2026-08-21 03:50 639228802476107538
266 ms 203.152.217.34
9 2026-08-21 03:33 639228792525492032
334 ms 203.152.217.34
8 2026-08-21 02:41 639228761131421385
534 ms 203.152.217.34
7 2026-08-21 02:25 639228751571206692
334 ms 203.152.217.34
6 2026-08-21 02:09 639228741705571019
536 ms 203.152.217.34
5 2026-08-21 01:52 639228731642208228
541 ms 203.152.217.34
4 2026-08-21 01:00 639228700387002072
543 ms 203.152.217.34
3 2026-08-21 00:44 639228690742014433
2 ms 203.152.217.34
2 2026-08-21 00:27 639228680877937122
533 ms 203.152.217.34
1 2026-08-21 00:11 639228670775860800
536 ms 203.152.217.34