DNS response history for z.ns.arvancdn.ir

z.ns.arvancdn.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 58 DNS check records, 57 successful responses, 1 failed responses, and 221 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 z.ns.arvancdn.ir.
Records on Selected Date

58

Historical checks stored for this nameserver on selected date

Average Latency

221 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 19:41

All timestamps shown in UTC

Latest Resolved IP on Selected Date

185.143.235.253

Most recently resolved hosting IP on selected date

Successful Responses

57

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 z.ns.arvancdn.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
58 2026-08-26 19:41 639233699834667450
20 ms 185.143.235.253
57 2026-08-26 18:46 639233667209186136
13 ms 185.143.235.253
56 2026-08-26 18:29 639233656814316266
107 ms 185.143.235.253
55 2026-08-26 18:12 639233646245051806
21 ms 185.143.235.253
54 2026-08-26 17:54 639233635663779051
29 ms 185.143.235.253
53 2026-08-26 17:36 639233624977342122
20 ms 185.143.235.253
52 2026-08-26 17:19 639233614446136153
17 ms 185.143.235.253
51 2026-08-26 17:01 639233603737877581
20 ms 185.143.235.253
50 2026-08-26 16:43 639233593269224651
17 ms 185.143.235.253
49 2026-08-26 16:26 639233582635086903
2074 ms 185.143.235.253
48 2026-08-26 16:08 639233572000374575
-
47 2026-08-26 15:50 639233561188633861
13 ms 185.143.235.253
46 2026-08-26 15:32 639233550544357027
19 ms 185.143.235.253
45 2026-08-26 14:38 639233517966053117
20 ms 185.143.235.253
44 2026-08-26 14:21 639233507603253585
10 ms 185.143.235.253
43 2026-08-26 14:03 639233497229039167
19 ms 185.143.235.253
42 2026-08-26 13:46 639233486864546406
27 ms 185.143.235.253
41 2026-08-26 13:29 639233476455174682
8 ms 185.143.235.253
40 2026-08-26 13:11 639233466171592605
115 ms 185.143.235.253
39 2026-08-26 12:54 639233455747096265
11 ms 185.143.235.253
38 2026-08-26 12:37 639233445367152284
88 ms 185.143.235.253
37 2026-08-26 12:20 639233434974187439
2158 ms 185.143.235.253
36 2026-08-26 12:02 639233424567558554
19 ms 185.143.235.253
35 2026-08-26 11:45 639233414056832719
26 ms 185.143.235.253
34 2026-08-26 11:27 639233403515141099
35 ms 185.143.235.253
33 2026-08-26 10:33 639233370841350248
9 ms 185.143.235.253
32 2026-08-26 10:15 639233360361507238
21 ms 185.143.235.253
31 2026-08-26 09:58 639233350067824371
10 ms 185.143.235.253
30 2026-08-26 09:40 639233339545274518
20 ms 185.143.235.253
29 2026-08-26 09:23 639233329214918079
7 ms 185.143.235.253
28 2026-08-26 09:06 639233318749762337
33 ms 185.143.235.253
27 2026-08-26 08:48 639233308387917838
21 ms 185.143.235.253
26 2026-08-26 08:31 639233297961740122
20 ms 185.143.235.253
25 2026-08-26 08:14 639233287487159094
19 ms 185.143.235.253
24 2026-08-26 07:56 639233276995531707
14 ms 185.143.235.253
23 2026-08-26 07:39 639233266521568229
2021 ms 185.143.235.253
22 2026-08-26 07:21 639233256081047431
16 ms 185.143.235.253
21 2026-08-26 06:27 639233223620132921
31 ms 185.143.235.253
20 2026-08-26 06:10 639233213287814244
20 ms 185.143.235.253
19 2026-08-26 05:53 639233202925983161
19 ms 185.143.235.253
18 2026-08-26 05:36 639233192644780696
19 ms 185.143.235.253
17 2026-08-26 05:18 639233182401183833
12 ms 185.143.235.253
16 2026-08-26 05:01 639233172074181051
16 ms 185.143.235.253
15 2026-08-26 04:44 639233161808421455
19 ms 185.143.235.253
14 2026-08-26 04:27 639233151357344052
9 ms 185.143.235.253
13 2026-08-26 04:10 639233141034116946
2009 ms 185.143.235.253
12 2026-08-26 03:53 639233130828334142
2065 ms 185.143.235.253
11 2026-08-26 03:35 639233120373450007
1054 ms 185.143.235.253
10 2026-08-26 03:18 639233110066216193
33 ms 185.143.235.253
9 2026-08-26 02:25 639233078065410564
9 ms 185.143.235.253
8 2026-08-26 02:07 639233067787457832
25 ms 185.143.235.253
7 2026-08-26 01:50 639233057501801162
9 ms 185.143.235.253
6 2026-08-26 01:33 639233047089431703
41 ms 185.143.235.253
5 2026-08-26 01:16 639233036754790688
24 ms 185.143.235.253
4 2026-08-26 00:58 639233026412602472
8 ms 185.143.235.253
3 2026-08-26 00:41 639233016064066127
12 ms 185.143.235.253
2 2026-08-26 00:24 639233005922655772
18 ms 185.143.235.253
1 2026-08-26 00:07 639232995672256907
10 ms 185.143.235.253