DNS response history for sdns20.ultradns.net

sdns20.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 65 DNS check records, 65 successful responses, 0 failed responses, and 239 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 sdns20.ultradns.net.
Records on Selected Date

65

Historical checks stored for this nameserver on selected date

Average Latency

239 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 21:43

All timestamps shown in UTC

Latest Resolved IP on Selected Date

156.154.141.20

Most recently resolved hosting IP on selected date

Successful Responses

65

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 sdns20.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
65 2026-08-26 21:43 639233773302621314
11 ms 156.154.141.20
64 2026-08-26 21:26 639233762896723748
26 ms 156.154.141.20
63 2026-08-26 21:09 639233752543876329
18 ms 156.154.141.20
62 2026-08-26 20:52 639233742155931788
36 ms 156.154.141.20
61 2026-08-26 20:34 639233731712555311
11 ms 156.154.141.20
60 2026-08-26 20:17 639233721164051126
2022 ms 156.154.141.20
59 2026-08-26 19:59 639233710560486320
26 ms 156.154.141.20
58 2026-08-26 19:41 639233699834667450
14 ms 156.154.141.20
57 2026-08-26 18:47 639233667209186136
7 ms 156.154.141.20
56 2026-08-26 18:29 639233656814316266
9 ms 156.154.141.20
55 2026-08-26 18:12 639233646245051806
19 ms 156.154.141.20
54 2026-08-26 17:54 639233635663779051
16 ms 156.154.141.20
53 2026-08-26 17:36 639233624977342122
10 ms 156.154.141.20
52 2026-08-26 17:19 639233614446136153
10 ms 156.154.141.20
51 2026-08-26 17:01 639233603737877581
28 ms 156.154.141.20
50 2026-08-26 16:43 639233593269224651
9 ms 156.154.141.20
49 2026-08-26 16:26 639233582635086903
12 ms 156.154.141.20
48 2026-08-26 16:08 639233572000374575
10 ms 156.154.141.20
47 2026-08-26 15:50 639233561188633861
2034 ms 156.154.141.20
46 2026-08-26 15:32 639233550544357027
60 ms 156.154.141.20
45 2026-08-26 14:38 639233517966053117
82 ms 156.154.141.20
44 2026-08-26 14:21 639233507603253585
11 ms 156.154.141.20
43 2026-08-26 14:03 639233497229039167
27 ms 156.154.141.20
42 2026-08-26 13:46 639233486864546406
51 ms 156.154.141.20
41 2026-08-26 13:29 639233476455174682
14 ms 156.154.141.20
40 2026-08-26 13:12 639233466171592605
50 ms 156.154.141.20
39 2026-08-26 12:54 639233455747096265
2065 ms 156.154.141.20
38 2026-08-26 12:37 639233445367152284
7 ms 156.154.141.20
37 2026-08-26 12:20 639233434974187439
35 ms 156.154.141.20
36 2026-08-26 12:02 639233424567558554
10 ms 156.154.141.20
35 2026-08-26 11:45 639233414056832719
24 ms 156.154.141.20
34 2026-08-26 11:27 639233403515141099
15 ms 156.154.141.20
33 2026-08-26 10:33 639233370841350248
14 ms 156.154.141.20
32 2026-08-26 10:15 639233360361507238
34 ms 156.154.141.20
31 2026-08-26 09:58 639233350067824371
4037 ms 156.154.141.20
30 2026-08-26 09:41 639233339545274518
27 ms 156.154.141.20
29 2026-08-26 09:23 639233329214918079
17 ms 156.154.141.20
28 2026-08-26 09:06 639233318749762337
16 ms 156.154.141.20
27 2026-08-26 08:49 639233308387917838
50 ms 156.154.141.20
26 2026-08-26 08:31 639233297961740122
23 ms 156.154.141.20
25 2026-08-26 08:14 639233287487159094
33 ms 156.154.141.20
24 2026-08-26 07:56 639233276995531707
19 ms 156.154.141.20
23 2026-08-26 07:39 639233266521568229
11 ms 156.154.141.20
22 2026-08-26 07:21 639233256081047431
14 ms 156.154.141.20
21 2026-08-26 06:27 639233223620132921
24 ms 156.154.141.20
20 2026-08-26 06:10 639233213287814244
22 ms 156.154.141.20
19 2026-08-26 05:53 639233202925983161
29 ms 156.154.141.20
18 2026-08-26 05:36 639233192644780696
15 ms 156.154.141.20
17 2026-08-26 05:19 639233182401183833
61 ms 156.154.141.20
16 2026-08-26 05:01 639233172074181051
10 ms 156.154.141.20
15 2026-08-26 04:44 639233161808421455
11 ms 156.154.141.20
14 2026-08-26 04:27 639233151357344052
23 ms 156.154.141.20
13 2026-08-26 04:10 639233141034116946
14 ms 156.154.141.20
12 2026-08-26 03:53 639233130828334142
19 ms 156.154.141.20
11 2026-08-26 03:35 639233120373450007
4012 ms 156.154.141.20
10 2026-08-26 03:18 639233110066216193
35 ms 156.154.141.20
9 2026-08-26 02:25 639233078065410564
11 ms 156.154.141.20
8 2026-08-26 02:08 639233067787457832
26 ms 156.154.141.20
7 2026-08-26 01:50 639233057501801162
9 ms 156.154.141.20
6 2026-08-26 01:33 639233047089431703
8 ms 156.154.141.20
5 2026-08-26 01:16 639233036754790688
43 ms 156.154.141.20
4 2026-08-26 00:59 639233026412602472
9 ms 156.154.141.20
3 2026-08-26 00:41 639233016064066127
10 ms 156.154.141.20
2 2026-08-26 00:24 639233005922655772
23 ms 156.154.141.20
1 2026-08-26 00:07 639232995672256907
19 ms 156.154.141.20