History for ns2.istt.ir
Domain: istt.ir • Tracking since 2026-08-04 23:25 UTC
DNS response history for ns2.istt.ir
ns2.istt.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 2026-08-25. For this date, NameServerHistory found 42 DNS check records, 42 successful responses, 0 failed responses, and 395 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.istt.ir.
Records on Selected Date
42
Historical checks stored for this nameserver on selected date
Average Latency
395 ms
Calculated from available response records
Latest Check on Selected Date
2026-08-25 14:22
All timestamps shown in UTC
Latest Resolved IP on Selected Date
37.191.79.136
Most recently resolved hosting IP on selected date
Successful Responses
42
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.istt.ir
Showing DNS history for 2026-08-25 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 |
|---|---|---|---|---|---|
| 42 | 2026-08-25 14:22 | 639232638994329666 |
|
203 ms | 37.191.79.136 |
| 41 | 2026-08-25 14:05 | 639232628614783237 |
|
184 ms | 37.191.79.136 |
| 40 | 2026-08-25 13:48 | 639232618360728578 |
|
217 ms | 37.191.79.136 |
| 39 | 2026-08-25 13:30 | 639232608016476376 |
|
192 ms | 37.191.79.136 |
| 38 | 2026-08-25 13:13 | 639232597643611557 |
|
202 ms | 37.191.79.136 |
| 37 | 2026-08-25 12:56 | 639232587225721862 |
|
90 ms | 37.191.79.136 |
| 36 | 2026-08-25 12:38 | 639232576780683689 |
|
5 ms | 37.191.79.136 |
| 35 | 2026-08-25 12:21 | 639232566381512620 |
|
3 ms | 37.191.79.136 |
| 34 | 2026-08-25 12:04 | 639232556111768563 |
|
283 ms | 37.191.79.136 |
| 33 | 2026-08-25 11:47 | 639232545839529039 |
|
94 ms | 37.191.79.136 |
| 32 | 2026-08-25 11:29 | 639232535349285207 |
|
89 ms | 37.191.79.136 |
| 31 | 2026-08-25 11:12 | 639232524938080723 |
|
2183 ms | 37.191.79.136 |
| 30 | 2026-08-25 10:18 | 639232492740373468 |
|
206 ms | 37.191.79.136 |
| 29 | 2026-08-25 10:01 | 639232482235303141 |
|
111 ms | 37.191.79.136 |
| 28 | 2026-08-25 09:43 | 639232471861770303 |
|
205 ms | 37.191.79.136 |
| 27 | 2026-08-25 09:26 | 639232461630217327 |
|
214 ms | 37.191.79.136 |
| 26 | 2026-08-25 09:09 | 639232451282965990 |
|
16 ms | 37.191.79.136 |
| 25 | 2026-08-25 08:52 | 639232440814614938 |
|
203 ms | 37.191.79.136 |
| 24 | 2026-08-25 08:34 | 639232430410720425 |
|
531 ms | 37.191.79.136 |
| 23 | 2026-08-25 08:17 | 639232420003096185 |
|
215 ms | 37.191.79.136 |
| 22 | 2026-08-25 08:00 | 639232409467287444 |
|
213 ms | 37.191.79.136 |
| 21 | 2026-08-25 07:42 | 639232399077195997 |
|
7 ms | 37.191.79.136 |
| 20 | 2026-08-25 07:25 | 639232388731528337 |
|
217 ms | 37.191.79.136 |
| 19 | 2026-08-25 07:07 | 639232378288598612 |
|
210 ms | 37.191.79.136 |
| 18 | 2026-08-25 06:14 | 639232346196373643 |
|
101 ms | 37.191.79.136 |
| 17 | 2026-08-25 05:57 | 639232336112370741 |
|
1612 ms | 37.191.79.136 |
| 16 | 2026-08-25 05:40 | 639232326146508970 |
|
199 ms | 37.191.79.136 |
| 15 | 2026-08-25 05:24 | 639232316189381720 |
|
204 ms | 37.191.79.136 |
| 14 | 2026-08-25 05:07 | 639232306217998913 |
|
214 ms | 37.191.79.136 |
| 13 | 2026-08-25 04:51 | 639232296255744174 |
|
107 ms | 37.191.79.136 |
| 12 | 2026-08-25 04:34 | 639232286095760789 |
|
10 ms | 37.191.79.136 |
| 11 | 2026-08-25 04:17 | 639232276086186273 |
|
202 ms | 37.191.79.136 |
| 10 | 2026-08-25 04:00 | 639232265900986425 |
|
159 ms | 37.191.79.136 |
| 9 | 2026-08-25 03:43 | 639232255723518075 |
|
2101 ms | 37.191.79.136 |
| 8 | 2026-08-25 03:26 | 639232245484452890 |
|
2185 ms | 37.191.79.136 |
| 7 | 2026-08-25 03:09 | 639232235157175331 |
|
193 ms | 37.191.79.136 |
| 6 | 2026-08-25 02:16 | 639232203197189095 |
|
205 ms | 37.191.79.136 |
| 5 | 2026-08-25 01:58 | 639232192844564298 |
|
214 ms | 37.191.79.136 |
| 4 | 2026-08-25 01:41 | 639232182496008942 |
|
211 ms | 37.191.79.136 |
| 3 | 2026-08-25 01:24 | 639232172197053132 |
|
201 ms | 37.191.79.136 |
| 2 | 2026-08-25 00:31 | 639232140250307418 |
|
203 ms | 37.191.79.136 |
| 1 | 2026-08-25 00:14 | 639232129927860324 |
|
2196 ms | 37.191.79.136 |