DNS response history for sdns56.ultradns.org

sdns56.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 65 DNS check records, 64 successful responses, 1 failed responses, and 261 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 sdns56.ultradns.org.
Records on Selected Date

65

Historical checks stored for this nameserver on selected date

Average Latency

261 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 21:46

All timestamps shown in UTC

Latest Resolved IP on Selected Date

156.154.143.56

Most recently resolved hosting IP on selected date

Successful Responses

64

Checks that returned a measurable response

Failed Responses

1

Checks with no response or no returned latency

Failure Rate

2%

Based on the selected date history

Selected Date Status

Responsive

At least one successful response exists on selected date

History for sdns56.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
65 2026-08-26 21:46 639233773302621314
2018 ms 156.154.143.56
64 2026-08-26 21:29 639233762896723748
32 ms 156.154.143.56
63 2026-08-26 21:11 639233752543876329
18 ms 156.154.143.56
62 2026-08-26 20:54 639233742155931788
22 ms 156.154.143.56
61 2026-08-26 20:37 639233731712555311
2015 ms 156.154.143.56
60 2026-08-26 20:19 639233721164051126
44 ms 156.154.143.56
59 2026-08-26 20:01 639233710560486320
2022 ms 156.154.143.56
58 2026-08-26 19:43 639233699834667450
15 ms 156.154.143.56
57 2026-08-26 18:49 639233667209186136
261 ms 156.154.143.56
56 2026-08-26 18:32 639233656814316266
-
55 2026-08-26 18:14 639233646245051806
13 ms 156.154.143.56
54 2026-08-26 17:57 639233635663779051
70 ms 156.154.143.56
53 2026-08-26 17:39 639233624977342122
16 ms 156.154.143.56
52 2026-08-26 17:21 639233614446136153
63 ms 156.154.143.56
51 2026-08-26 17:03 639233603737877581
45 ms 156.154.143.56
50 2026-08-26 16:46 639233593269224651
49 ms 156.154.143.56
49 2026-08-26 16:28 639233582635086903
28 ms 156.154.143.56
48 2026-08-26 16:11 639233572000374575
9 ms 156.154.143.56
47 2026-08-26 15:53 639233561188633861
32 ms 156.154.143.56
46 2026-08-26 15:35 639233550544357027
15 ms 156.154.143.56
45 2026-08-26 14:40 639233517966053117
39 ms 156.154.143.56
44 2026-08-26 14:23 639233507603253585
12 ms 156.154.143.56
43 2026-08-26 14:06 639233497229039167
18 ms 156.154.143.56
42 2026-08-26 13:49 639233486864546406
41 ms 156.154.143.56
41 2026-08-26 13:31 639233476455174682
20 ms 156.154.143.56
40 2026-08-26 13:14 639233466171592605
47 ms 156.154.143.56
39 2026-08-26 12:57 639233455747096265
10 ms 156.154.143.56
38 2026-08-26 12:39 639233445367152284
41 ms 156.154.143.56
37 2026-08-26 12:22 639233434974187439
21 ms 156.154.143.56
36 2026-08-26 12:05 639233424567558554
295 ms 156.154.143.56
35 2026-08-26 11:47 639233414056832719
2050 ms 156.154.143.56
34 2026-08-26 11:30 639233403515141099
12 ms 156.154.143.56
33 2026-08-26 10:35 639233370841350248
15 ms 156.154.143.56
32 2026-08-26 10:18 639233360361507238
26 ms 156.154.143.56
31 2026-08-26 10:01 639233350067824371
36 ms 156.154.143.56
30 2026-08-26 09:43 639233339545274518
10 ms 156.154.143.56
29 2026-08-26 09:26 639233329214918079
2038 ms 156.154.143.56
28 2026-08-26 09:08 639233318749762337
43 ms 156.154.143.56
27 2026-08-26 08:51 639233308387917838
11 ms 156.154.143.56
26 2026-08-26 08:34 639233297961740122
78 ms 156.154.143.56
25 2026-08-26 08:16 639233287487159094
9 ms 156.154.143.56
24 2026-08-26 07:59 639233276995531707
29 ms 156.154.143.56
23 2026-08-26 07:41 639233266521568229
23 ms 156.154.143.56
22 2026-08-26 07:24 639233256081047431
39 ms 156.154.143.56
21 2026-08-26 06:30 639233223620132921
36 ms 156.154.143.56
20 2026-08-26 06:13 639233213287814244
198 ms 156.154.143.56
19 2026-08-26 05:55 639233202925983161
9 ms 156.154.143.56
18 2026-08-26 05:38 639233192644780696
2074 ms 156.154.143.56
17 2026-08-26 05:21 639233182401183833
2012 ms 156.154.143.56
16 2026-08-26 05:04 639233172074181051
303 ms 156.154.143.56
15 2026-08-26 04:47 639233161808421455
11 ms 156.154.143.56
14 2026-08-26 04:29 639233151357344052
12 ms 156.154.143.56
13 2026-08-26 04:12 639233141034116946
18 ms 156.154.143.56
12 2026-08-26 03:55 639233130828334142
9 ms 156.154.143.56
11 2026-08-26 03:38 639233120373450007
30 ms 156.154.143.56
10 2026-08-26 03:21 639233110066216193
39 ms 156.154.143.56
9 2026-08-26 02:27 639233078065410564
16 ms 156.154.143.56
8 2026-08-26 02:10 639233067787457832
30 ms 156.154.143.56
7 2026-08-26 01:53 639233057501801162
41 ms 156.154.143.56
6 2026-08-26 01:36 639233047089431703
45 ms 156.154.143.56
5 2026-08-26 01:18 639233036754790688
30 ms 156.154.143.56
4 2026-08-26 01:01 639233026412602472
9 ms 156.154.143.56
3 2026-08-26 00:44 639233016064066127
18 ms 156.154.143.56
2 2026-08-26 00:27 639233005922655772
7 ms 156.154.143.56
1 2026-08-26 00:10 639232995672256907
26 ms 156.154.143.56