DNS response history for sdns101.ultradns.net

sdns101.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, 64 successful responses, 1 failed responses, and 277 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 sdns101.ultradns.net.
Records on Selected Date

65

Historical checks stored for this nameserver on selected date

Average Latency

277 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

156.154.141.101

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 sdns101.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
10 ms 156.154.141.101
64 2026-08-26 21:25 639233762896723748
11 ms 156.154.141.101
63 2026-08-26 21:08 639233752543876329
13 ms 156.154.141.101
62 2026-08-26 20:51 639233742155931788
11 ms 156.154.141.101
61 2026-08-26 20:33 639233731712555311
62 ms 156.154.141.101
60 2026-08-26 20:16 639233721164051126
41 ms 156.154.141.101
59 2026-08-26 19:58 639233710560486320
25 ms 156.154.141.101
58 2026-08-26 19:40 639233699834667450
10 ms 156.154.141.101
57 2026-08-26 18:46 639233667209186136
62 ms 156.154.141.101
56 2026-08-26 18:28 639233656814316266
2009 ms 156.154.141.101
55 2026-08-26 18:11 639233646245051806
10 ms 156.154.141.101
54 2026-08-26 17:53 639233635663779051
9 ms 156.154.141.101
53 2026-08-26 17:35 639233624977342122
10 ms 156.154.141.101
52 2026-08-26 17:18 639233614446136153
18 ms 156.154.141.101
51 2026-08-26 17:00 639233603737877581
30 ms 156.154.141.101
50 2026-08-26 16:43 639233593269224651
2035 ms 156.154.141.101
49 2026-08-26 16:25 639233582635086903
35 ms 156.154.141.101
48 2026-08-26 16:07 639233572000374575
16 ms 156.154.141.101
47 2026-08-26 15:49 639233561188633861
32 ms 156.154.141.101
46 2026-08-26 15:31 639233550544357027
17 ms 156.154.141.101
45 2026-08-26 14:37 639233517966053117
20 ms 156.154.141.101
44 2026-08-26 14:20 639233507603253585
60 ms 156.154.141.101
43 2026-08-26 14:02 639233497229039167
13 ms 156.154.141.101
42 2026-08-26 13:45 639233486864546406
13 ms 156.154.141.101
41 2026-08-26 13:28 639233476455174682
12 ms 156.154.141.101
40 2026-08-26 13:11 639233466171592605
20 ms 156.154.141.101
39 2026-08-26 12:53 639233455747096265
15 ms 156.154.141.101
38 2026-08-26 12:36 639233445367152284
2039 ms 156.154.141.101
37 2026-08-26 12:19 639233434974187439
14 ms 156.154.141.101
36 2026-08-26 12:01 639233424567558554
24 ms 156.154.141.101
35 2026-08-26 11:44 639233414056832719
29 ms 156.154.141.101
34 2026-08-26 11:26 639233403515141099
12 ms 156.154.141.101
33 2026-08-26 10:32 639233370841350248
35 ms 156.154.141.101
32 2026-08-26 10:14 639233360361507238
31 ms 156.154.141.101
31 2026-08-26 09:57 639233350067824371
19 ms 156.154.141.101
30 2026-08-26 09:40 639233339545274518
8 ms 156.154.141.101
29 2026-08-26 09:22 639233329214918079
51 ms 156.154.141.101
28 2026-08-26 09:05 639233318749762337
46 ms 156.154.141.101
27 2026-08-26 08:48 639233308387917838
-
26 2026-08-26 08:30 639233297961740122
14 ms 156.154.141.101
25 2026-08-26 08:13 639233287487159094
64 ms 156.154.141.101
24 2026-08-26 07:55 639233276995531707
11 ms 156.154.141.101
23 2026-08-26 07:38 639233266521568229
40 ms 156.154.141.101
22 2026-08-26 07:21 639233256081047431
2078 ms 156.154.141.101
21 2026-08-26 06:26 639233223620132921
2207 ms 156.154.141.101
20 2026-08-26 06:09 639233213287814244
21 ms 156.154.141.101
19 2026-08-26 05:52 639233202925983161
2023 ms 156.154.141.101
18 2026-08-26 05:35 639233192644780696
13 ms 156.154.141.101
17 2026-08-26 05:18 639233182401183833
11 ms 156.154.141.101
16 2026-08-26 05:01 639233172074181051
31 ms 156.154.141.101
15 2026-08-26 04:43 639233161808421455
10 ms 156.154.141.101
14 2026-08-26 04:26 639233151357344052
24 ms 156.154.141.101
13 2026-08-26 04:09 639233141034116946
8 ms 156.154.141.101
12 2026-08-26 03:52 639233130828334142
9 ms 156.154.141.101
11 2026-08-26 03:34 639233120373450007
12 ms 156.154.141.101
10 2026-08-26 03:17 639233110066216193
2027 ms 156.154.141.101
9 2026-08-26 02:24 639233078065410564
9 ms 156.154.141.101
8 2026-08-26 02:07 639233067787457832
16 ms 156.154.141.101
7 2026-08-26 01:50 639233057501801162
36 ms 156.154.141.101
6 2026-08-26 01:32 639233047089431703
9 ms 156.154.141.101
5 2026-08-26 01:15 639233036754790688
49 ms 156.154.141.101
4 2026-08-26 00:58 639233026412602472
6 ms 156.154.141.101
3 2026-08-26 00:41 639233016064066127
2027 ms 156.154.141.101
2 2026-08-26 00:24 639233005922655772
11 ms 156.154.141.101
1 2026-08-26 00:07 639232995672256907
13 ms 156.154.141.101