DNS response history for ns21.server-iran.com

ns21.server-iran.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 2026-08-24. For this date, NameServerHistory found 34 DNS check records, 33 successful responses, 1 failed responses, and 87 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 ns21.server-iran.com.
Records on Selected Date

34

Historical checks stored for this nameserver on selected date

Average Latency

87 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-24 13:56

All timestamps shown in UTC

Latest Resolved IP on Selected Date

178.22.123.45

Most recently resolved hosting IP on selected date

Successful Responses

33

Checks that returned a measurable response

Failed Responses

1

Checks with no response or no returned latency

Failure Rate

3%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for ns21.server-iran.com

Showing DNS history for 2026-08-24 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
34 2026-08-24 13:56 639231765923559455
8 ms 178.22.123.45
33 2026-08-24 13:40 639231755868832964
2017 ms 178.22.123.45
32 2026-08-24 13:22 639231745628278877
47 ms 178.22.123.45
31 2026-08-24 13:05 639231735407682062
51 ms 178.22.123.45
30 2026-08-24 12:13 639231703815441688
6 ms 178.22.123.45
29 2026-08-24 11:56 639231693747052549
8 ms 178.22.123.45
28 2026-08-24 11:39 639231683712487276
15 ms 178.22.123.45
27 2026-08-24 11:22 639231673513573868
29 ms 178.22.123.45
26 2026-08-24 10:29 639231641791249939
28 ms 178.22.123.45
25 2026-08-24 10:13 639231631866211033
38 ms 178.22.123.45
24 2026-08-24 09:56 639231621644955316
5 ms 178.22.123.45
23 2026-08-24 09:39 639231611478799259
13 ms 178.22.123.45
22 2026-08-24 08:46 639231579923718211
27 ms 178.22.123.45
21 2026-08-24 08:29 639231569810702936
22 ms 178.22.123.45
20 2026-08-24 08:13 639231559762411619
23 ms 178.22.123.45
19 2026-08-24 07:56 639231549663595407
36 ms 178.22.123.45
18 2026-08-24 07:03 639231518076817246
10 ms 178.22.123.45
17 2026-08-24 06:47 639231508078650885
47 ms 178.22.123.45
16 2026-08-24 06:30 639231498210697093
30 ms 178.22.123.45
15 2026-08-24 06:13 639231488109699360
20 ms 178.22.123.45
14 2026-08-24 05:21 639231456772510692
36 ms 178.22.123.45
13 2026-08-24 05:05 639231447084631185
4 ms 178.22.123.45
12 2026-08-24 04:48 639231437208519473
3 ms 178.22.123.45
11 2026-08-24 04:32 639231427209627490
-
10 2026-08-24 03:39 639231395791246644
24 ms 178.22.123.45
9 2026-08-24 03:23 639231386075551458
26 ms 178.22.123.45
8 2026-08-24 03:07 639231376208713791
4 ms 178.22.123.45
7 2026-08-24 02:50 639231366170589276
30 ms 178.22.123.45
6 2026-08-24 01:58 639231334732159368
4 ms 178.22.123.45
5 2026-08-24 01:41 639231325035670078
24 ms 178.22.123.45
4 2026-08-24 01:25 639231315132253837
85 ms 178.22.123.45
3 2026-08-24 01:08 639231305014280808
52 ms 178.22.123.45
2 2026-08-24 00:16 639231273779380675
65 ms 178.22.123.45
1 2026-08-24 00:00 639231264180839154
49 ms 178.22.123.45