DNS response history for pdns131.ultradns.com

pdns131.ultradns.com 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 48 DNS check records, 48 successful responses, 0 failed responses, and 361 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 pdns131.ultradns.com.
Records on Selected Date

48

Historical checks stored for this nameserver on selected date

Average Latency

361 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 16:07

All timestamps shown in UTC

Latest Resolved IP on Selected Date

156.154.64.131

Most recently resolved hosting IP on selected date

Successful Responses

48

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 pdns131.ultradns.com

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
48 2026-08-26 16:07 639233572000374575
40 ms 156.154.64.131
47 2026-08-26 15:49 639233561188633861
28 ms 156.154.64.131
46 2026-08-26 15:31 639233550544357027
12 ms 156.154.64.131
45 2026-08-26 14:37 639233517966053117
44 ms 156.154.64.131
44 2026-08-26 14:19 639233507603253585
21 ms 156.154.64.131
43 2026-08-26 14:02 639233497229039167
58 ms 156.154.64.131
42 2026-08-26 13:45 639233486864546406
12 ms 156.154.64.131
41 2026-08-26 13:27 639233476455174682
12 ms 156.154.64.131
40 2026-08-26 13:10 639233466171592605
10 ms 156.154.64.131
39 2026-08-26 12:53 639233455747096265
34 ms 156.154.64.131
38 2026-08-26 12:36 639233445367152284
27 ms 156.154.64.131
37 2026-08-26 12:18 639233434974187439
72 ms 156.154.64.131
36 2026-08-26 12:01 639233424567558554
47 ms 156.154.64.131
35 2026-08-26 11:43 639233414056832719
23 ms 156.154.64.131
34 2026-08-26 11:26 639233403515141099
2014 ms 156.154.64.131
33 2026-08-26 10:32 639233370841350248
4040 ms 156.154.64.131
32 2026-08-26 10:14 639233360361507238
2067 ms 156.154.64.131
31 2026-08-26 09:57 639233350067824371
35 ms 156.154.64.131
30 2026-08-26 09:39 639233339545274518
52 ms 156.154.64.131
29 2026-08-26 09:22 639233329214918079
20 ms 156.154.64.131
28 2026-08-26 09:05 639233318749762337
2024 ms 156.154.64.131
27 2026-08-26 08:47 639233308387917838
78 ms 156.154.64.131
26 2026-08-26 08:30 639233297961740122
11 ms 156.154.64.131
25 2026-08-26 08:13 639233287487159094
24 ms 156.154.64.131
24 2026-08-26 07:55 639233276995531707
10 ms 156.154.64.131
23 2026-08-26 07:38 639233266521568229
10 ms 156.154.64.131
22 2026-08-26 07:20 639233256081047431
43 ms 156.154.64.131
21 2026-08-26 06:26 639233223620132921
11 ms 156.154.64.131
20 2026-08-26 06:09 639233213287814244
43 ms 156.154.64.131
19 2026-08-26 05:52 639233202925983161
14 ms 156.154.64.131
18 2026-08-26 05:34 639233192644780696
2035 ms 156.154.64.131
17 2026-08-26 05:17 639233182401183833
24 ms 156.154.64.131
16 2026-08-26 05:00 639233172074181051
14 ms 156.154.64.131
15 2026-08-26 04:43 639233161808421455
2008 ms 156.154.64.131
14 2026-08-26 04:26 639233151357344052
14 ms 156.154.64.131
13 2026-08-26 04:08 639233141034116946
18 ms 156.154.64.131
12 2026-08-26 03:51 639233130828334142
75 ms 156.154.64.131
11 2026-08-26 03:34 639233120373450007
18 ms 156.154.64.131
10 2026-08-26 03:17 639233110066216193
19 ms 156.154.64.131
9 2026-08-26 02:23 639233078065410564
23 ms 156.154.64.131
8 2026-08-26 02:06 639233067787457832
16 ms 156.154.64.131
7 2026-08-26 01:49 639233057501801162
2034 ms 156.154.64.131
6 2026-08-26 01:32 639233047089431703
10 ms 156.154.64.131
5 2026-08-26 01:15 639233036754790688
12 ms 156.154.64.131
4 2026-08-26 00:57 639233026412602472
11 ms 156.154.64.131
3 2026-08-26 00:40 639233016064066127
10 ms 156.154.64.131
2 2026-08-26 00:23 639233005922655772
57 ms 156.154.64.131
1 2026-08-26 00:06 639232995672256907
11 ms 156.154.64.131