DNS response history for pdns171.ultradns.biz

pdns171.ultradns.biz 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 2026-09-01. For this date, NameServerHistory found 44 DNS check records, 44 successful responses, 0 failed responses, and 249 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 pdns171.ultradns.biz.
Records on Selected Date

44

Historical checks stored for this nameserver on selected date

Average Latency

249 ms

Calculated from available response records

Latest Check on Selected Date

2026-09-01 15:19

All timestamps shown in UTC

Latest Resolved IP on Selected Date

156.154.66.171

Most recently resolved hosting IP on selected date

Successful Responses

44

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 pdns171.ultradns.biz

Showing DNS history for 2026-09-01 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
44 2026-09-01 15:19 639238723349432115
11 ms 156.154.66.171
43 2026-09-01 14:25 639238690993873259
46 ms 156.154.66.171
42 2026-09-01 14:08 639238680658140472
8 ms 156.154.66.171
41 2026-09-01 13:51 639238670295233158
5 ms 156.154.66.171
40 2026-09-01 13:33 639238659704397018
12 ms 156.154.66.171
39 2026-09-01 13:16 639238649308394463
7 ms 156.154.66.171
38 2026-09-01 12:58 639238638904588883
11 ms 156.154.66.171
37 2026-09-01 12:41 639238628486902752
14 ms 156.154.66.171
36 2026-09-01 12:23 639238617906743100
36 ms 156.154.66.171
35 2026-09-01 12:06 639238607506044626
9 ms 156.154.66.171
34 2026-09-01 11:49 639238597040761406
9 ms 156.154.66.171
33 2026-09-01 11:31 639238586261546969
12 ms 156.154.66.171
32 2026-09-01 11:13 639238575587642333
13 ms 156.154.66.171
31 2026-09-01 10:19 639238543127398267
18 ms 156.154.66.171
30 2026-09-01 10:01 639238532668234016
9 ms 156.154.66.171
29 2026-09-01 09:44 639238522029321761
146 ms 156.154.66.171
28 2026-09-01 09:26 639238511519050351
12 ms 156.154.66.171
27 2026-09-01 09:09 639238500942239673
25 ms 156.154.66.171
26 2026-09-01 08:51 639238490412377398
17 ms 156.154.66.171
25 2026-09-01 08:33 639238479833203021
2008 ms 156.154.66.171
24 2026-09-01 08:16 639238469140507479
23 ms 156.154.66.171
23 2026-09-01 07:58 639238458443560361
29 ms 156.154.66.171
22 2026-09-01 07:40 639238447694851502
2011 ms 156.154.66.171
21 2026-09-01 07:22 639238436624109087
20 ms 156.154.66.171
20 2026-09-01 07:03 639238425565611335
16 ms 156.154.66.171
19 2026-09-01 06:08 639238392250222581
10 ms 156.154.66.171
18 2026-09-01 05:49 639238381322537831
10 ms 156.154.66.171
17 2026-09-01 05:31 639238370248186084
9 ms 156.154.66.171
16 2026-09-01 05:13 639238359264687845
10 ms 156.154.66.171
15 2026-09-01 04:55 639238348534621818
9 ms 156.154.66.171
14 2026-09-01 04:37 639238337725739433
2088 ms 156.154.66.171
13 2026-09-01 04:18 639238326844749368
9 ms 156.154.66.171
12 2026-09-01 04:00 639238315792024737
2009 ms 156.154.66.171
11 2026-09-01 03:42 639238304931064768
61 ms 156.154.66.171
10 2026-09-01 03:24 639238294131483803
2010 ms 156.154.66.171
9 2026-09-01 03:06 639238283314985519
24 ms 156.154.66.171
8 2026-09-01 02:48 639238272374093187
11 ms 156.154.66.171
7 2026-09-01 01:53 639238240032549922
37 ms 156.154.66.171
6 2026-09-01 01:36 639238229204177368
9 ms 156.154.66.171
5 2026-09-01 01:18 639238218326150282
10 ms 156.154.66.171
4 2026-09-01 01:00 639238207574700853
12 ms 156.154.66.171
3 2026-09-01 00:41 639238196660283915
12 ms 156.154.66.171
2 2026-09-01 00:23 639238185782358546
59 ms 156.154.66.171
1 2026-09-01 00:05 639238175054391781
13 ms 156.154.66.171