DNS response history for ns4.sys-tech.net

ns4.sys-tech.net 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 2026-08-20. For this date, NameServerHistory found 57 DNS check records, 56 successful responses, 1 failed responses, and 445 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.sys-tech.net.
Records on Selected Date

57

Historical checks stored for this nameserver on selected date

Average Latency

445 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-20 23:14

All timestamps shown in UTC

Latest Resolved IP on Selected Date

199.21.216.4

Most recently resolved hosting IP on selected date

Successful Responses

56

Checks that returned a measurable response

Failed Responses

1

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 ns4.sys-tech.net

Showing DNS history for 2026-08-20 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
57 2026-08-20 23:14 639228639850033448
105 ms 199.21.216.4
56 2026-08-20 22:58 639228630204271870
120 ms 199.21.216.4
55 2026-08-20 22:41 639228620295091135
243 ms 199.21.216.4
54 2026-08-20 22:25 639228610298336915
125 ms 199.21.216.4
53 2026-08-20 21:32 639228578917047616
113 ms 199.21.216.4
52 2026-08-20 21:16 639228569046445709
118 ms 199.21.216.4
51 2026-08-20 20:59 639228558946830986
-
50 2026-08-20 20:42 639228548977359217
2240 ms 199.21.216.4
49 2026-08-20 19:50 639228517494157668
243 ms 199.21.216.4
48 2026-08-20 19:33 639228507374116892
227 ms 199.21.216.4
47 2026-08-20 19:16 639228497315154893
113 ms 199.21.216.4
46 2026-08-20 19:00 639228487287648341
229 ms 199.21.216.4
45 2026-08-20 18:07 639228455828123788
131 ms 199.21.216.4
44 2026-08-20 17:51 639228445900082244
234 ms 199.21.216.4
43 2026-08-20 17:34 639228435866352323
231 ms 199.21.216.4
42 2026-08-20 17:17 639228425802273151
111 ms 199.21.216.4
41 2026-08-20 16:24 639228393616324230
231 ms 199.21.216.4
40 2026-08-20 16:07 639228383590408693
244 ms 199.21.216.4
39 2026-08-20 15:50 639228373471467474
119 ms 199.21.216.4
38 2026-08-20 15:33 639228363426647311
230 ms 199.21.216.4
37 2026-08-20 14:40 639228331681701910
242 ms 199.21.216.4
36 2026-08-20 14:24 639228321714746824
297 ms 199.21.216.4
35 2026-08-20 14:07 639228311652090262
111 ms 199.21.216.4
34 2026-08-20 13:50 639228301670088587
136 ms 199.21.216.4
33 2026-08-20 12:58 639228269987976710
233 ms 199.21.216.4
32 2026-08-20 12:41 639228260009452308
137 ms 199.21.216.4
31 2026-08-20 12:24 639228249661740894
110 ms 199.21.216.4
30 2026-08-20 12:07 639228239552680346
252 ms 199.21.216.4
29 2026-08-20 11:14 639228207667580819
2239 ms 199.21.216.4
28 2026-08-20 10:57 639228197494011560
288 ms 199.21.216.4
27 2026-08-20 10:40 639228187497039939
2211 ms 199.21.216.4
26 2026-08-20 10:23 639228177408432646
236 ms 199.21.216.4
25 2026-08-20 09:32 639228146356166262
110 ms 199.21.216.4
24 2026-08-20 09:15 639228136541505712
319 ms 199.21.216.4
23 2026-08-20 08:59 639228126519136598
2224 ms 199.21.216.4
22 2026-08-20 08:42 639228116537148885
229 ms 199.21.216.4
21 2026-08-20 07:49 639228085320764351
109 ms 199.21.216.4
20 2026-08-20 07:34 639228075444604839
228 ms 199.21.216.4
19 2026-08-20 07:17 639228065615498985
112 ms 199.21.216.4
18 2026-08-20 07:00 639228055675321422
230 ms 199.21.216.4
17 2026-08-20 06:08 639228024230839396
4302 ms 199.21.216.4
16 2026-08-20 05:52 639228014720406505
251 ms 199.21.216.4
15 2026-08-20 05:36 639228004930827030
234 ms 199.21.216.4
14 2026-08-20 05:19 639227995103340154
289 ms 199.21.216.4
13 2026-08-20 04:27 639227963811374894
119 ms 199.21.216.4
12 2026-08-20 04:11 639227954132571365
227 ms 199.21.216.4
11 2026-08-20 03:55 639227944541208342
222 ms 199.21.216.4
10 2026-08-20 03:39 639227934657213484
2236 ms 199.21.216.4
9 2026-08-20 02:47 639227903628145469
122 ms 199.21.216.4
8 2026-08-20 02:31 639227893995483475
230 ms 199.21.216.4
7 2026-08-20 02:15 639227884280244209
227 ms 199.21.216.4
6 2026-08-20 01:58 639227874371147132
138 ms 199.21.216.4
5 2026-08-20 01:06 639227843224256432
135 ms 199.21.216.4
4 2026-08-20 00:50 639227833720403506
226 ms 199.21.216.4
3 2026-08-20 00:35 639227824170728278
120 ms 199.21.216.4
2 2026-08-20 00:19 639227814865867570
115 ms 199.21.216.4
1 2026-08-20 00:03 639227805445376839
290 ms 199.21.216.4