DNS response history for pdns154.ultradns.net

pdns154.ultradns.net 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 43 DNS check records, 43 successful responses, 0 failed responses, and 359 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 pdns154.ultradns.net.
Records on Selected Date

43

Historical checks stored for this nameserver on selected date

Average Latency

359 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 14:03

All timestamps shown in UTC

Latest Resolved IP on Selected Date

156.154.65.154

Most recently resolved hosting IP on selected date

Successful Responses

43

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 pdns154.ultradns.net

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
43 2026-08-26 14:03 639233497229039167
38 ms 156.154.65.154
42 2026-08-26 13:46 639233486864546406
13 ms 156.154.65.154
41 2026-08-26 13:29 639233476455174682
70 ms 156.154.65.154
40 2026-08-26 13:12 639233466171592605
56 ms 156.154.65.154
39 2026-08-26 12:54 639233455747096265
26 ms 156.154.65.154
38 2026-08-26 12:37 639233445367152284
15 ms 156.154.65.154
37 2026-08-26 12:20 639233434974187439
2035 ms 156.154.65.154
36 2026-08-26 12:02 639233424567558554
56 ms 156.154.65.154
35 2026-08-26 11:45 639233414056832719
27 ms 156.154.65.154
34 2026-08-26 11:27 639233403515141099
29 ms 156.154.65.154
33 2026-08-26 10:33 639233370841350248
24 ms 156.154.65.154
32 2026-08-26 10:15 639233360361507238
34 ms 156.154.65.154
31 2026-08-26 09:58 639233350067824371
48 ms 156.154.65.154
30 2026-08-26 09:41 639233339545274518
38 ms 156.154.65.154
29 2026-08-26 09:23 639233329214918079
121 ms 156.154.65.154
28 2026-08-26 09:06 639233318749762337
49 ms 156.154.65.154
27 2026-08-26 08:49 639233308387917838
11 ms 156.154.65.154
26 2026-08-26 08:31 639233297961740122
2031 ms 156.154.65.154
25 2026-08-26 08:14 639233287487159094
41 ms 156.154.65.154
24 2026-08-26 07:56 639233276995531707
17 ms 156.154.65.154
23 2026-08-26 07:39 639233266521568229
11 ms 156.154.65.154
22 2026-08-26 07:22 639233256081047431
23 ms 156.154.65.154
21 2026-08-26 06:27 639233223620132921
11 ms 156.154.65.154
20 2026-08-26 06:10 639233213287814244
20 ms 156.154.65.154
19 2026-08-26 05:53 639233202925983161
34 ms 156.154.65.154
18 2026-08-26 05:36 639233192644780696
27 ms 156.154.65.154
17 2026-08-26 05:19 639233182401183833
10 ms 156.154.65.154
16 2026-08-26 05:02 639233172074181051
41 ms 156.154.65.154
15 2026-08-26 04:44 639233161808421455
16 ms 156.154.65.154
14 2026-08-26 04:27 639233151357344052
55 ms 156.154.65.154
13 2026-08-26 04:10 639233141034116946
2033 ms 156.154.65.154
12 2026-08-26 03:53 639233130828334142
2009 ms 156.154.65.154
11 2026-08-26 03:35 639233120373450007
52 ms 156.154.65.154
10 2026-08-26 03:18 639233110066216193
33 ms 156.154.65.154
9 2026-08-26 02:25 639233078065410564
31 ms 156.154.65.154
8 2026-08-26 02:08 639233067787457832
2036 ms 156.154.65.154
7 2026-08-26 01:51 639233057501801162
25 ms 156.154.65.154
6 2026-08-26 01:33 639233047089431703
20 ms 156.154.65.154
5 2026-08-26 01:16 639233036754790688
81 ms 156.154.65.154
4 2026-08-26 00:59 639233026412602472
4010 ms 156.154.65.154
3 2026-08-26 00:42 639233016064066127
10 ms 156.154.65.154
2 2026-08-26 00:25 639233005922655772
40 ms 156.154.65.154
1 2026-08-26 00:08 639232995672256907
14 ms 156.154.65.154