DNS response history for ns2.null.cn

ns2.null.cn 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, 57 successful responses, 0 failed responses, and 711 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 ns2.null.cn.
Records on Selected Date

57

Historical checks stored for this nameserver on selected date

Average Latency

711 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-20 23:20

All timestamps shown in UTC

Latest Resolved IP on Selected Date

170.33.12.185

Most recently resolved hosting IP on selected date

Successful Responses

57

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 ns2.null.cn

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 23:20 639228639850033448
514 ms 170.33.12.185
56 2026-08-20 23:04 639228630204271870
686 ms 170.33.12.185
55 2026-08-20 22:47 639228620295091135
838 ms 170.33.12.185
54 2026-08-20 22:31 639228610298336915
565 ms 170.33.12.185
53 2026-08-20 21:38 639228578917047616
270 ms 170.33.12.185
52 2026-08-20 21:22 639228569046445709
913 ms 170.33.12.185
51 2026-08-20 21:05 639228558946830986
268 ms 170.33.12.185
50 2026-08-20 20:48 639228548977359217
562 ms 170.33.12.185
49 2026-08-20 19:56 639228517494157668
383 ms 170.33.12.185
48 2026-08-20 19:40 639228507374116892
543 ms 170.33.12.185
47 2026-08-20 19:23 639228497315154893
568 ms 170.33.12.185
46 2026-08-20 19:06 639228487287648341
783 ms 170.33.12.185
45 2026-08-20 18:13 639228455828123788
815 ms 170.33.12.185
44 2026-08-20 17:57 639228445900082244
896 ms 170.33.12.185
43 2026-08-20 17:40 639228435866352323
827 ms 170.33.12.185
42 2026-08-20 17:23 639228425802273151
522 ms 170.33.12.185
41 2026-08-20 16:30 639228393616324230
269 ms 170.33.12.185
40 2026-08-20 16:13 639228383590408693
1785 ms 170.33.12.185
39 2026-08-20 15:56 639228373471467474
538 ms 170.33.12.185
38 2026-08-20 15:39 639228363426647311
880 ms 170.33.12.185
37 2026-08-20 14:46 639228331681701910
1318 ms 170.33.12.185
36 2026-08-20 14:30 639228321714746824
378 ms 170.33.12.185
35 2026-08-20 14:13 639228311652090262
590 ms 170.33.12.185
34 2026-08-20 13:56 639228301670088587
536 ms 170.33.12.185
33 2026-08-20 13:04 639228269987976710
308 ms 170.33.12.185
32 2026-08-20 12:47 639228260009452308
1068 ms 170.33.12.185
31 2026-08-20 12:30 639228249661740894
1011 ms 170.33.12.185
30 2026-08-20 12:13 639228239552680346
992 ms 170.33.12.185
29 2026-08-20 11:20 639228207667580819
228 ms 170.33.12.185
28 2026-08-20 11:03 639228197494011560
647 ms 170.33.12.185
27 2026-08-20 10:46 639228187497039939
559 ms 170.33.12.185
26 2026-08-20 10:29 639228177408432646
1122 ms 170.33.12.185
25 2026-08-20 09:37 639228146356166262
617 ms 170.33.12.185
24 2026-08-20 09:21 639228136541505712
1203 ms 170.33.12.185
23 2026-08-20 09:05 639228126519136598
296 ms 170.33.12.185
22 2026-08-20 08:48 639228116537148885
537 ms 170.33.12.185
21 2026-08-20 07:55 639228085320764351
291 ms 170.33.12.185
20 2026-08-20 07:39 639228075444604839
557 ms 170.33.12.185
19 2026-08-20 07:23 639228065615498985
981 ms 170.33.12.185
18 2026-08-20 07:06 639228055675321422
589 ms 170.33.12.185
17 2026-08-20 06:14 639228024230839396
964 ms 170.33.12.185
16 2026-08-20 05:58 639228014720406505
1791 ms 170.33.12.185
15 2026-08-20 05:42 639228004930827030
678 ms 170.33.12.185
14 2026-08-20 05:25 639227995103340154
279 ms 170.33.12.185
13 2026-08-20 04:33 639227963811374894
811 ms 170.33.12.185
12 2026-08-20 04:17 639227954132571365
836 ms 170.33.12.185
11 2026-08-20 04:01 639227944541208342
854 ms 170.33.12.185
10 2026-08-20 03:45 639227934657213484
286 ms 170.33.12.185
9 2026-08-20 02:52 639227903628145469
787 ms 170.33.12.185
8 2026-08-20 02:37 639227893995483475
292 ms 170.33.12.185
7 2026-08-20 02:21 639227884280244209
765 ms 170.33.12.185
6 2026-08-20 02:04 639227874371147132
555 ms 170.33.12.185
5 2026-08-20 01:12 639227843224256432
282 ms 170.33.12.185
4 2026-08-20 00:56 639227833720403506
307 ms 170.33.12.185
3 2026-08-20 00:40 639227824170728278
712 ms 170.33.12.185
2 2026-08-20 00:24 639227814865867570
556 ms 170.33.12.185
1 2026-08-20 00:09 639227805445376839
2508 ms 170.33.12.185