DNS response history for pdns153.ultradns.org

pdns153.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 50 DNS check records, 50 successful responses, 0 failed responses, and 275 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 pdns153.ultradns.org.
Records on Selected Date

50

Historical checks stored for this nameserver on selected date

Average Latency

275 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 16:48

All timestamps shown in UTC

Latest Resolved IP on Selected Date

156.154.67.153

Most recently resolved hosting IP on selected date

Successful Responses

50

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 pdns153.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
50 2026-08-26 16:48 639233593269224651
12 ms 156.154.67.153
49 2026-08-26 16:30 639233582635086903
2014 ms 156.154.67.153
48 2026-08-26 16:12 639233572000374575
18 ms 156.154.67.153
47 2026-08-26 15:54 639233561188633861
10 ms 156.154.67.153
46 2026-08-26 15:37 639233550544357027
2052 ms 156.154.67.153
45 2026-08-26 14:42 639233517966053117
13 ms 156.154.67.153
44 2026-08-26 14:25 639233507603253585
2021 ms 156.154.67.153
43 2026-08-26 14:08 639233497229039167
2012 ms 156.154.67.153
42 2026-08-26 13:50 639233486864546406
22 ms 156.154.67.153
41 2026-08-26 13:33 639233476455174682
39 ms 156.154.67.153
40 2026-08-26 13:16 639233466171592605
5 ms 156.154.67.153
39 2026-08-26 12:59 639233455747096265
30 ms 156.154.67.153
38 2026-08-26 12:41 639233445367152284
11 ms 156.154.67.153
37 2026-08-26 12:24 639233434974187439
24 ms 156.154.67.153
36 2026-08-26 12:07 639233424567558554
12 ms 156.154.67.153
35 2026-08-26 11:49 639233414056832719
23 ms 156.154.67.153
34 2026-08-26 11:31 639233403515141099
62 ms 156.154.67.153
33 2026-08-26 10:37 639233370841350248
8 ms 156.154.67.153
32 2026-08-26 10:20 639233360361507238
27 ms 156.154.67.153
31 2026-08-26 10:02 639233350067824371
36 ms 156.154.67.153
30 2026-08-26 09:45 639233339545274518
114 ms 156.154.67.153
29 2026-08-26 09:28 639233329214918079
12 ms 156.154.67.153
28 2026-08-26 09:10 639233318749762337
15 ms 156.154.67.153
27 2026-08-26 08:53 639233308387917838
12 ms 156.154.67.153
26 2026-08-26 08:36 639233297961740122
54 ms 156.154.67.153
25 2026-08-26 08:18 639233287487159094
16 ms 156.154.67.153
24 2026-08-26 08:01 639233276995531707
25 ms 156.154.67.153
23 2026-08-26 07:43 639233266521568229
2024 ms 156.154.67.153
22 2026-08-26 07:26 639233256081047431
56 ms 156.154.67.153
21 2026-08-26 06:32 639233223620132921
15 ms 156.154.67.153
20 2026-08-26 06:15 639233213287814244
46 ms 156.154.67.153
19 2026-08-26 05:57 639233202925983161
45 ms 156.154.67.153
18 2026-08-26 05:40 639233192644780696
13 ms 156.154.67.153
17 2026-08-26 05:23 639233182401183833
39 ms 156.154.67.153
16 2026-08-26 05:06 639233172074181051
10 ms 156.154.67.153
15 2026-08-26 04:49 639233161808421455
145 ms 156.154.67.153
14 2026-08-26 04:31 639233151357344052
7 ms 156.154.67.153
13 2026-08-26 04:14 639233141034116946
17 ms 156.154.67.153
12 2026-08-26 03:57 639233130828334142
17 ms 156.154.67.153
11 2026-08-26 03:40 639233120373450007
21 ms 156.154.67.153
10 2026-08-26 03:22 639233110066216193
30 ms 156.154.67.153
9 2026-08-26 02:29 639233078065410564
108 ms 156.154.67.153
8 2026-08-26 02:12 639233067787457832
2020 ms 156.154.67.153
7 2026-08-26 01:55 639233057501801162
16 ms 156.154.67.153
6 2026-08-26 01:37 639233047089431703
77 ms 156.154.67.153
5 2026-08-26 01:20 639233036754790688
315 ms 156.154.67.153
4 2026-08-26 01:03 639233026412602472
20 ms 156.154.67.153
3 2026-08-26 00:46 639233016064066127
9 ms 156.154.67.153
2 2026-08-26 00:29 639233005922655772
10 ms 156.154.67.153
1 2026-08-26 00:12 639232995672256907
14 ms 156.154.67.153