DNS response history for ns01.ip.wustl.edu

ns01.ip.wustl.edu 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 36 DNS check records, 36 successful responses, 0 failed responses, and 435 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 ns01.ip.wustl.edu.
Records on Selected Date

36

Historical checks stored for this nameserver on selected date

Average Latency

435 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 12:09

All timestamps shown in UTC

Latest Resolved IP on Selected Date

128.252.0.9

Most recently resolved hosting IP on selected date

Successful Responses

36

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 ns01.ip.wustl.edu

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
36 2026-08-26 12:09 639233424567558554
2008 ms 128.252.0.9
35 2026-08-26 11:51 639233414056832719
251 ms 128.252.0.9
34 2026-08-26 11:33 639233403515141099
391 ms 128.252.0.9
33 2026-08-26 10:39 639233370841350248
14 ms 128.252.0.9
32 2026-08-26 10:22 639233360361507238
246 ms 128.252.0.9
31 2026-08-26 10:04 639233350067824371
123 ms 128.252.0.9
30 2026-08-26 09:47 639233339545274518
39 ms 128.252.0.9
29 2026-08-26 09:30 639233329214918079
250 ms 128.252.0.9
28 2026-08-26 09:12 639233318749762337
256 ms 128.252.0.9
27 2026-08-26 08:55 639233308387917838
275 ms 128.252.0.9
26 2026-08-26 08:38 639233297961740122
135 ms 128.252.0.9
25 2026-08-26 08:20 639233287487159094
10 ms 128.252.0.9
24 2026-08-26 08:03 639233276995531707
2011 ms 128.252.0.9
23 2026-08-26 07:45 639233266521568229
129 ms 128.252.0.9
22 2026-08-26 07:28 639233256081047431
2009 ms 128.252.0.9
21 2026-08-26 06:34 639233223620132921
246 ms 128.252.0.9
20 2026-08-26 06:17 639233213287814244
9 ms 128.252.0.9
19 2026-08-26 05:59 639233202925983161
126 ms 128.252.0.9
18 2026-08-26 05:42 639233192644780696
251 ms 128.252.0.9
17 2026-08-26 05:25 639233182401183833
18 ms 128.252.0.9
16 2026-08-26 05:08 639233172074181051
251 ms 128.252.0.9
15 2026-08-26 04:51 639233161808421455
129 ms 128.252.0.9
14 2026-08-26 04:33 639233151357344052
26 ms 128.252.0.9
13 2026-08-26 04:16 639233141034116946
129 ms 128.252.0.9
12 2026-08-26 03:59 639233130828334142
264 ms 128.252.0.9
11 2026-08-26 03:42 639233120373450007
2013 ms 128.252.0.9
10 2026-08-26 03:24 639233110066216193
252 ms 128.252.0.9
9 2026-08-26 02:31 639233078065410564
125 ms 128.252.0.9
8 2026-08-26 02:14 639233067787457832
130 ms 128.252.0.9
7 2026-08-26 01:57 639233057501801162
127 ms 128.252.0.9
6 2026-08-26 01:39 639233047089431703
122 ms 128.252.0.9
5 2026-08-26 01:22 639233036754790688
2650 ms 128.252.0.9
4 2026-08-26 01:05 639233026412602472
262 ms 128.252.0.9
3 2026-08-26 00:48 639233016064066127
12 ms 128.252.0.9
2 2026-08-26 00:31 639233005922655772
130 ms 128.252.0.9
1 2026-08-26 00:14 639232995672256907
235 ms 128.252.0.9