DNS response history for z.arvancdn.ir

z.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 113 DNS check records, 112 successful responses, 1 failed responses, and 215 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.arvancdn.ir.
Records on Selected Date

113

Historical checks stored for this nameserver on selected date

Average Latency

215 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 18:50

All timestamps shown in UTC

Latest Resolved IP on Selected Date

185.143.233.238

Most recently resolved hosting IP on selected date

Successful Responses

112

Checks that returned a measurable response

Failed Responses

1

Checks with no response or no returned latency

Failure Rate

1%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for z.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
113 2026-08-26 18:50 639233667209186136
37 ms 185.143.233.238
112 2026-08-26 18:50 639233667209186136
37 ms 185.143.234.238
111 2026-08-26 18:32 639233656814316266
110 ms 185.143.234.238
110 2026-08-26 18:32 639233656814316266
110 ms 185.143.233.238
109 2026-08-26 18:15 639233646245051806
10 ms 185.143.233.238
108 2026-08-26 18:15 639233646245051806
10 ms 185.143.234.238
107 2026-08-26 17:57 639233635663779051
30 ms 185.143.233.238
106 2026-08-26 17:57 639233635663779051
30 ms 185.143.234.238
105 2026-08-26 17:39 639233624977342122
31 ms 185.143.233.238
104 2026-08-26 17:39 639233624977342122
31 ms 185.143.234.238
103 2026-08-26 17:22 639233614446136153
21 ms 185.143.234.238
102 2026-08-26 17:22 639233614446136153
21 ms 185.143.233.238
101 2026-08-26 17:04 639233603737877581
20 ms 185.143.233.238
100 2026-08-26 17:04 639233603737877581
20 ms 185.143.234.238
99 2026-08-26 16:46 639233593269224651
96 ms 185.143.233.238
98 2026-08-26 16:46 639233593269224651
96 ms 185.143.234.238
97 2026-08-26 16:29 639233582635086903
13 ms 185.143.233.238
96 2026-08-26 16:29 639233582635086903
13 ms 185.143.234.238
95 2026-08-26 16:11 639233572000374575
2065 ms 185.143.234.238
94 2026-08-26 16:11 639233572000374575
2065 ms 185.143.233.238
93 2026-08-26 15:53 639233561188633861
11 ms 185.143.234.238
92 2026-08-26 15:53 639233561188633861
11 ms 185.143.233.238
91 2026-08-26 15:35 639233550544357027
2089 ms 185.143.234.238
90 2026-08-26 15:35 639233550544357027
2089 ms 185.143.233.238
89 2026-08-26 14:41 639233517966053117
98 ms 185.143.233.238
88 2026-08-26 14:41 639233517966053117
98 ms 185.143.234.238
87 2026-08-26 14:24 639233507603253585
38 ms 185.143.233.238
86 2026-08-26 14:24 639233507603253585
38 ms 185.143.234.238
85 2026-08-26 14:06 639233497229039167
92 ms 185.143.233.238
84 2026-08-26 14:06 639233497229039167
92 ms 185.143.234.238
83 2026-08-26 13:49 639233486864546406
99 ms 185.143.234.238
82 2026-08-26 13:49 639233486864546406
99 ms 185.143.233.238
81 2026-08-26 13:32 639233476455174682
25 ms 185.143.233.238
80 2026-08-26 13:32 639233476455174682
25 ms 185.143.234.238
79 2026-08-26 13:15 639233466171592605
10 ms 185.143.234.238
78 2026-08-26 13:15 639233466171592605
10 ms 185.143.233.238
77 2026-08-26 12:57 639233455747096265
69 ms 185.143.234.238
76 2026-08-26 12:57 639233455747096265
69 ms 185.143.233.238
75 2026-08-26 12:40 639233445367152284
10 ms 185.143.234.238
74 2026-08-26 12:40 639233445367152284
10 ms 185.143.233.238
73 2026-08-26 12:23 639233434974187439
24 ms 185.143.234.238
72 2026-08-26 12:23 639233434974187439
24 ms 185.143.233.238
71 2026-08-26 12:05 639233424567558554
104 ms 185.143.234.238
70 2026-08-26 12:05 639233424567558554
104 ms 185.143.233.238
69 2026-08-26 11:48 639233414056832719
9 ms 185.143.234.238
68 2026-08-26 11:48 639233414056832719
9 ms 185.143.233.238
67 2026-08-26 11:30 639233403515141099
19 ms 185.143.234.238
66 2026-08-26 11:30 639233403515141099
19 ms 185.143.233.238
65 2026-08-26 10:36 639233370841350248
31 ms 185.143.234.238
64 2026-08-26 10:36 639233370841350248
31 ms 185.143.233.238
63 2026-08-26 10:18 639233360361507238
13 ms 185.143.234.238
62 2026-08-26 10:18 639233360361507238
13 ms 185.143.233.238
61 2026-08-26 10:01 639233350067824371
17 ms 185.143.234.238
60 2026-08-26 10:01 639233350067824371
17 ms 185.143.233.238
59 2026-08-26 09:44 639233339545274518
108 ms 185.143.233.238
58 2026-08-26 09:44 639233339545274518
108 ms 185.143.234.238
57 2026-08-26 09:26 639233329214918079
14 ms 185.143.233.238
56 2026-08-26 09:26 639233329214918079
14 ms 185.143.234.238
55 2026-08-26 09:09 639233318749762337
23 ms 185.143.233.238
54 2026-08-26 09:09 639233318749762337
23 ms 185.143.234.238
53 2026-08-26 08:52 639233308387917838
35 ms 185.143.234.238
52 2026-08-26 08:52 639233308387917838
35 ms 185.143.233.238
51 2026-08-26 08:34 639233297961740122
149 ms 185.143.234.238
50 2026-08-26 08:34 639233297961740122
149 ms 185.143.233.238
49 2026-08-26 08:17 639233287487159094
68 ms 185.143.234.238
48 2026-08-26 08:17 639233287487159094
68 ms 185.143.233.238
47 2026-08-26 07:59 639233276995531707
76 ms 185.143.234.238
46 2026-08-26 07:59 639233276995531707
76 ms 185.143.233.238
45 2026-08-26 07:42 639233266521568229
2180 ms 185.143.234.238
44 2026-08-26 07:42 639233266521568229
2180 ms 185.143.233.238
43 2026-08-26 07:25 639233256081047431
23 ms 185.143.233.238
42 2026-08-26 07:25 639233256081047431
23 ms 185.143.234.238
41 2026-08-26 06:30 639233223620132921
10 ms 185.143.233.238
40 2026-08-26 06:30 639233223620132921
10 ms 185.143.234.238
39 2026-08-26 06:13 639233213287814244
10 ms 185.143.233.238
38 2026-08-26 06:13 639233213287814244
10 ms 185.143.234.238
37 2026-08-26 05:56 639233202925983161
8 ms 185.143.234.238
36 2026-08-26 05:56 639233202925983161
8 ms 185.143.233.238
35 2026-08-26 05:39 639233192644780696
22 ms 185.143.233.238
34 2026-08-26 05:39 639233192644780696
22 ms 185.143.234.238
33 2026-08-26 05:22 639233182401183833
12 ms 185.143.233.238
32 2026-08-26 05:22 639233182401183833
12 ms 185.143.234.238
31 2026-08-26 05:05 639233172074181051
20 ms 185.143.234.238
30 2026-08-26 05:05 639233172074181051
20 ms 185.143.233.238
29 2026-08-26 04:47 639233161808421455
28 ms 185.143.234.238
28 2026-08-26 04:47 639233161808421455
28 ms 185.143.233.238
27 2026-08-26 04:30 639233151357344052
18 ms 185.143.234.238
26 2026-08-26 04:30 639233151357344052
18 ms 185.143.233.238
25 2026-08-26 04:13 639233141034116946
36 ms 185.143.234.238
24 2026-08-26 04:13 639233141034116946
36 ms 185.143.233.238
23 2026-08-26 03:56 639233130828334142
27 ms 185.143.233.238
22 2026-08-26 03:56 639233130828334142
27 ms 185.143.234.238
21 2026-08-26 03:38 639233120373450007
84 ms 185.143.234.238
20 2026-08-26 03:38 639233120373450007
84 ms 185.143.233.238
19 2026-08-26 03:21 639233110066216193
31 ms 185.143.234.238
18 2026-08-26 03:21 639233110066216193
31 ms 185.143.233.238
17 2026-08-26 02:28 639233078065410564
8 ms 185.143.234.238
16 2026-08-26 02:28 639233078065410564
8 ms 185.143.233.238
15 2026-08-26 02:11 639233067787457832
8 ms 185.143.233.238
14 2026-08-26 02:11 639233067787457832
8 ms 185.143.234.238
13 2026-08-26 01:54 639233057501801162
18 ms 185.143.233.238
12 2026-08-26 01:54 639233057501801162
18 ms 185.143.234.238
11 2026-08-26 01:36 639233047089431703
47 ms 185.143.234.238
10 2026-08-26 01:36 639233047089431703
47 ms 185.143.233.238
9 2026-08-26 01:19 639233036754790688
34 ms 185.143.233.238
8 2026-08-26 01:19 639233036754790688
34 ms 185.143.234.238
7 2026-08-26 01:02 639233026412602472
3706 ms 185.143.233.238
6 2026-08-26 01:02 639233026412602472
3706 ms 185.143.234.238
5 2026-08-26 00:45 639233016064066127
-
4 2026-08-26 00:27 639233005922655772
29 ms 185.143.233.238
3 2026-08-26 00:27 639233005922655772
29 ms 185.143.234.238
2 2026-08-26 00:10 639232995672256907
27 ms 185.143.234.238
1 2026-08-26 00:10 639232995672256907
27 ms 185.143.233.238