DNS response history for ns1.xir.ir

ns1.xir.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 2026-08-24. For this date, NameServerHistory found 18 DNS check records, 18 successful responses, 0 failed responses, and 554 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.xir.ir.
Records on Selected Date

18

Historical checks stored for this nameserver on selected date

Average Latency

554 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-24 07:11

All timestamps shown in UTC

Latest Resolved IP on Selected Date

81.12.39.8

Most recently resolved hosting IP on selected date

Successful Responses

18

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 ns1.xir.ir

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
18 2026-08-24 07:11 639231518076817246
3 ms 81.12.39.8
17 2026-08-24 06:54 639231508078650885
2103 ms 81.12.39.8
16 2026-08-24 06:37 639231498210697093
198 ms 81.12.39.8
15 2026-08-24 06:21 639231488109699360
4 ms 81.12.39.8
14 2026-08-24 05:28 639231456772510692
4 ms 81.12.39.8
13 2026-08-24 05:12 639231447084631185
390 ms 81.12.39.8
12 2026-08-24 04:56 639231437208519473
25 ms 81.12.39.8
11 2026-08-24 04:39 639231427209627490
177 ms 81.12.39.8
10 2026-08-24 03:46 639231395791246644
7 ms 81.12.39.8
9 2026-08-24 03:30 639231386075551458
7 ms 81.12.39.8
8 2026-08-24 03:14 639231376208713791
190 ms 81.12.39.8
7 2026-08-24 02:57 639231366170589276
7 ms 81.12.39.8
6 2026-08-24 02:05 639231334732159368
4133 ms 81.12.39.8
5 2026-08-24 01:49 639231325035670078
94 ms 81.12.39.8
4 2026-08-24 01:32 639231315132253837
2272 ms 81.12.39.8
3 2026-08-24 01:15 639231305014280808
39 ms 81.12.39.8
2 2026-08-24 00:23 639231273779380675
153 ms 81.12.39.8
1 2026-08-24 00:07 639231264180839154
171 ms 81.12.39.8