DNS response history for ns1.dualp.ir

ns1.dualp.ir 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 2026-08-26. For this date, NameServerHistory found 43 DNS check records, 40 successful responses, 3 failed responses, and 534 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.dualp.ir.
Records on Selected Date

43

Historical checks stored for this nameserver on selected date

Average Latency

534 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 13:57

All timestamps shown in UTC

Latest Resolved IP on Selected Date

87.236.210.21

Most recently resolved hosting IP on selected date

Successful Responses

40

Checks that returned a measurable response

Failed Responses

3

Checks with no response or no returned latency

Failure Rate

7%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for ns1.dualp.ir

Showing DNS history for 2026-08-26 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
43 2026-08-26 13:57 639233486864546406
343 ms 87.236.210.21
42 2026-08-26 13:40 639233476455174682
589 ms 87.236.210.21
41 2026-08-26 13:23 639233466171592605
899 ms 87.236.210.21
40 2026-08-26 13:05 639233455747096265
188 ms 87.236.210.21
39 2026-08-26 12:48 639233445367152284
188 ms 87.236.210.21
38 2026-08-26 12:31 639233434974187439
181 ms 87.236.210.21
37 2026-08-26 12:13 639233424567558554
180 ms 87.236.210.21
36 2026-08-26 11:56 639233414056832719
181 ms 87.236.210.21
35 2026-08-26 11:38 639233403515141099
207 ms 87.236.210.21
34 2026-08-26 10:44 639233370841350248
228 ms 87.236.210.21
33 2026-08-26 10:27 639233360361507238
176 ms 87.236.210.21
32 2026-08-26 10:09 639233350067824371
31 ms 87.236.210.21
31 2026-08-26 09:52 639233339545274518
200 ms 87.236.210.21
30 2026-08-26 09:34 639233329214918079
188 ms 87.236.210.21
29 2026-08-26 09:17 639233318749762337
189 ms 87.236.210.21
28 2026-08-26 09:00 639233308387917838
193 ms 87.236.210.21
27 2026-08-26 08:42 639233297961740122
187 ms 87.236.210.21
26 2026-08-26 08:25 639233287487159094
743 ms 87.236.210.21
25 2026-08-26 08:08 639233276995531707
181 ms 87.236.210.21
24 2026-08-26 07:50 639233266521568229
182 ms 87.236.210.21
23 2026-08-26 07:33 639233256081047431
183 ms 87.236.210.21
22 2026-08-26 06:39 639233223620132921
1721 ms 87.236.210.21
21 2026-08-26 06:21 639233213287814244
225 ms 87.236.210.21
20 2026-08-26 06:04 639233202925983161
189 ms 87.236.210.21
19 2026-08-26 05:47 639233192644780696
191 ms 87.236.210.21
18 2026-08-26 05:30 639233182401183833
165 ms 87.236.210.21
17 2026-08-26 05:13 639233172074181051
2008 ms 87.236.210.21
16 2026-08-26 04:55 639233161808421455
2008 ms 87.236.210.21
15 2026-08-26 04:38 639233151357344052
-
14 2026-08-26 04:21 639233141034116946
-
13 2026-08-26 04:04 639233130828334142
2015 ms 87.236.210.21
12 2026-08-26 03:47 639233120373450007
2009 ms 87.236.210.21
11 2026-08-26 03:29 639233110066216193
-
10 2026-08-26 02:36 639233078065410564
191 ms 87.236.210.21
9 2026-08-26 02:19 639233067787457832
3888 ms 87.236.210.21
8 2026-08-26 02:02 639233057501801162
180 ms 87.236.210.21
7 2026-08-26 01:44 639233047089431703
3 ms 87.236.210.21
6 2026-08-26 01:27 639233036754790688
3 ms 87.236.210.21
5 2026-08-26 01:10 639233026412602472
193 ms 87.236.210.21
4 2026-08-26 00:53 639233016064066127
198 ms 87.236.210.21
3 2026-08-26 00:35 639233005922655772
197 ms 87.236.210.21
2 2026-08-26 00:18 639232995672256907
175 ms 87.236.210.21
1 2026-08-26 00:01 639232985300872416
180 ms 87.236.210.21