DNS response history for pdns101.ultradns.org

pdns101.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 195 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 pdns101.ultradns.org.
Records on Selected Date

50

Historical checks stored for this nameserver on selected date

Average Latency

195 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 16:45

All timestamps shown in UTC

Latest Resolved IP on Selected Date

156.154.67.101

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 pdns101.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 16:45 639233593269224651
17 ms 156.154.67.101
49 2026-08-26 16:27 639233582635086903
36 ms 156.154.67.101
48 2026-08-26 16:10 639233572000374575
11 ms 156.154.67.101
47 2026-08-26 15:52 639233561188633861
2027 ms 156.154.67.101
46 2026-08-26 15:34 639233550544357027
2019 ms 156.154.67.101
45 2026-08-26 14:40 639233517966053117
19 ms 156.154.67.101
44 2026-08-26 14:22 639233507603253585
259 ms 156.154.67.101
43 2026-08-26 14:05 639233497229039167
33 ms 156.154.67.101
42 2026-08-26 13:48 639233486864546406
74 ms 156.154.67.101
41 2026-08-26 13:31 639233476455174682
27 ms 156.154.67.101
40 2026-08-26 13:13 639233466171592605
2016 ms 156.154.67.101
39 2026-08-26 12:56 639233455747096265
23 ms 156.154.67.101
38 2026-08-26 12:39 639233445367152284
20 ms 156.154.67.101
37 2026-08-26 12:21 639233434974187439
23 ms 156.154.67.101
36 2026-08-26 12:04 639233424567558554
43 ms 156.154.67.101
35 2026-08-26 11:46 639233414056832719
41 ms 156.154.67.101
34 2026-08-26 11:29 639233403515141099
14 ms 156.154.67.101
33 2026-08-26 10:34 639233370841350248
7 ms 156.154.67.101
32 2026-08-26 10:17 639233360361507238
18 ms 156.154.67.101
31 2026-08-26 10:00 639233350067824371
31 ms 156.154.67.101
30 2026-08-26 09:42 639233339545274518
12 ms 156.154.67.101
29 2026-08-26 09:25 639233329214918079
26 ms 156.154.67.101
28 2026-08-26 09:08 639233318749762337
94 ms 156.154.67.101
27 2026-08-26 08:50 639233308387917838
24 ms 156.154.67.101
26 2026-08-26 08:33 639233297961740122
41 ms 156.154.67.101
25 2026-08-26 08:16 639233287487159094
13 ms 156.154.67.101
24 2026-08-26 07:58 639233276995531707
48 ms 156.154.67.101
23 2026-08-26 07:41 639233266521568229
34 ms 156.154.67.101
22 2026-08-26 07:23 639233256081047431
12 ms 156.154.67.101
21 2026-08-26 06:29 639233223620132921
11 ms 156.154.67.101
20 2026-08-26 06:12 639233213287814244
17 ms 156.154.67.101
19 2026-08-26 05:55 639233202925983161
2043 ms 156.154.67.101
18 2026-08-26 05:37 639233192644780696
30 ms 156.154.67.101
17 2026-08-26 05:20 639233182401183833
12 ms 156.154.67.101
16 2026-08-26 05:03 639233172074181051
8 ms 156.154.67.101
15 2026-08-26 04:46 639233161808421455
8 ms 156.154.67.101
14 2026-08-26 04:29 639233151357344052
10 ms 156.154.67.101
13 2026-08-26 04:11 639233141034116946
11 ms 156.154.67.101
12 2026-08-26 03:54 639233130828334142
32 ms 156.154.67.101
11 2026-08-26 03:37 639233120373450007
10 ms 156.154.67.101
10 2026-08-26 03:20 639233110066216193
45 ms 156.154.67.101
9 2026-08-26 02:26 639233078065410564
11 ms 156.154.67.101
8 2026-08-26 02:09 639233067787457832
9 ms 156.154.67.101
7 2026-08-26 01:52 639233057501801162
9 ms 156.154.67.101
6 2026-08-26 01:35 639233047089431703
49 ms 156.154.67.101
5 2026-08-26 01:18 639233036754790688
216 ms 156.154.67.101
4 2026-08-26 01:00 639233026412602472
11 ms 156.154.67.101
3 2026-08-26 00:43 639233016064066127
27 ms 156.154.67.101
2 2026-08-26 00:26 639233005922655772
77 ms 156.154.67.101
1 2026-08-26 00:09 639232995672256907
28 ms 156.154.67.101