DNS response history for pdns131.ultradns.org

pdns131.ultradns.org 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 53 DNS check records, 53 successful responses, 0 failed responses, and 227 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.org.
Records on Selected Date

53

Historical checks stored for this nameserver on selected date

Average Latency

227 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 17:37

All timestamps shown in UTC

Latest Resolved IP on Selected Date

156.154.67.131

Most recently resolved hosting IP on selected date

Successful Responses

53

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.org

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
53 2026-08-26 17:37 639233624977342122
11 ms 156.154.67.131
52 2026-08-26 17:19 639233614446136153
39 ms 156.154.67.131
51 2026-08-26 17:01 639233603737877581
13 ms 156.154.67.131
50 2026-08-26 16:44 639233593269224651
66 ms 156.154.67.131
49 2026-08-26 16:26 639233582635086903
74 ms 156.154.67.131
48 2026-08-26 16:08 639233572000374575
13 ms 156.154.67.131
47 2026-08-26 15:50 639233561188633861
10 ms 156.154.67.131
46 2026-08-26 15:33 639233550544357027
35 ms 156.154.67.131
45 2026-08-26 14:38 639233517966053117
85 ms 156.154.67.131
44 2026-08-26 14:21 639233507603253585
17 ms 156.154.67.131
43 2026-08-26 14:04 639233497229039167
53 ms 156.154.67.131
42 2026-08-26 13:46 639233486864546406
9 ms 156.154.67.131
41 2026-08-26 13:29 639233476455174682
32 ms 156.154.67.131
40 2026-08-26 13:12 639233466171592605
25 ms 156.154.67.131
39 2026-08-26 12:55 639233455747096265
14 ms 156.154.67.131
38 2026-08-26 12:37 639233445367152284
12 ms 156.154.67.131
37 2026-08-26 12:20 639233434974187439
37 ms 156.154.67.131
36 2026-08-26 12:03 639233424567558554
2026 ms 156.154.67.131
35 2026-08-26 11:45 639233414056832719
11 ms 156.154.67.131
34 2026-08-26 11:28 639233403515141099
2013 ms 156.154.67.131
33 2026-08-26 10:33 639233370841350248
26 ms 156.154.67.131
32 2026-08-26 10:16 639233360361507238
37 ms 156.154.67.131
31 2026-08-26 09:58 639233350067824371
15 ms 156.154.67.131
30 2026-08-26 09:41 639233339545274518
11 ms 156.154.67.131
29 2026-08-26 09:24 639233329214918079
29 ms 156.154.67.131
28 2026-08-26 09:06 639233318749762337
31 ms 156.154.67.131
27 2026-08-26 08:49 639233308387917838
15 ms 156.154.67.131
26 2026-08-26 08:32 639233297961740122
148 ms 156.154.67.131
25 2026-08-26 08:14 639233287487159094
271 ms 156.154.67.131
24 2026-08-26 07:57 639233276995531707
32 ms 156.154.67.131
23 2026-08-26 07:39 639233266521568229
15 ms 156.154.67.131
22 2026-08-26 07:22 639233256081047431
40 ms 156.154.67.131
21 2026-08-26 06:28 639233223620132921
2012 ms 156.154.67.131
20 2026-08-26 06:11 639233213287814244
2008 ms 156.154.67.131
19 2026-08-26 05:53 639233202925983161
9 ms 156.154.67.131
18 2026-08-26 05:36 639233192644780696
146 ms 156.154.67.131
17 2026-08-26 05:19 639233182401183833
36 ms 156.154.67.131
16 2026-08-26 05:02 639233172074181051
25 ms 156.154.67.131
15 2026-08-26 04:45 639233161808421455
7 ms 156.154.67.131
14 2026-08-26 04:27 639233151357344052
12 ms 156.154.67.131
13 2026-08-26 04:10 639233141034116946
23 ms 156.154.67.131
12 2026-08-26 03:53 639233130828334142
29 ms 156.154.67.131
11 2026-08-26 03:36 639233120373450007
16 ms 156.154.67.131
10 2026-08-26 03:18 639233110066216193
12 ms 156.154.67.131
9 2026-08-26 02:25 639233078065410564
14 ms 156.154.67.131
8 2026-08-26 02:08 639233067787457832
10 ms 156.154.67.131
7 2026-08-26 01:51 639233057501801162
27 ms 156.154.67.131
6 2026-08-26 01:34 639233047089431703
218 ms 156.154.67.131
5 2026-08-26 01:16 639233036754790688
37 ms 156.154.67.131
4 2026-08-26 00:59 639233026412602472
75 ms 156.154.67.131
3 2026-08-26 00:42 639233016064066127
2026 ms 156.154.67.131
2 2026-08-26 00:25 639233005922655772
35 ms 156.154.67.131
1 2026-08-26 00:08 639232995672256907
10 ms 156.154.67.131