DNS response history for ulns01.ul.ac.za

ulns01.ul.ac.za 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 58 DNS check records, 58 successful responses, 0 failed responses, and 410 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 ulns01.ul.ac.za.
Records on Selected Date

58

Historical checks stored for this nameserver on selected date

Average Latency

410 ms

Calculated from available response records

Latest Check on Selected Date

2026-08-26 18:59

All timestamps shown in UTC

Latest Resolved IP on Selected Date

196.21.218.28

Most recently resolved hosting IP on selected date

Successful Responses

58

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 ulns01.ul.ac.za

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
58 2026-08-26 18:59 639233667209186136
398 ms 196.21.218.28
57 2026-08-26 18:41 639233656814316266
197 ms 196.21.218.28
56 2026-08-26 18:24 639233646245051806
396 ms 196.21.218.28
55 2026-08-26 18:06 639233635663779051
393 ms 196.21.218.28
54 2026-08-26 17:49 639233624977342122
569 ms 196.21.218.28
53 2026-08-26 17:31 639233614446136153
309 ms 196.21.218.28
52 2026-08-26 17:13 639233603737877581
195 ms 196.21.218.28
51 2026-08-26 16:55 639233593269224651
563 ms 196.21.218.28
50 2026-08-26 16:38 639233582635086903
566 ms 196.21.218.28
49 2026-08-26 16:20 639233572000374575
579 ms 196.21.218.28
48 2026-08-26 16:02 639233561188633861
566 ms 196.21.218.28
47 2026-08-26 15:44 639233550544357027
757 ms 196.21.218.28
46 2026-08-26 14:50 639233517966053117
391 ms 196.21.218.28
45 2026-08-26 14:33 639233507603253585
393 ms 196.21.218.28
44 2026-08-26 14:15 639233497229039167
392 ms 196.21.218.28
43 2026-08-26 13:58 639233486864546406
396 ms 196.21.218.28
42 2026-08-26 13:41 639233476455174682
393 ms 196.21.218.28
41 2026-08-26 13:23 639233466171592605
198 ms 196.21.218.28
40 2026-08-26 13:06 639233455747096265
392 ms 196.21.218.28
39 2026-08-26 12:49 639233445367152284
395 ms 196.21.218.28
38 2026-08-26 12:32 639233434974187439
199 ms 196.21.218.28
37 2026-08-26 12:14 639233424567558554
404 ms 196.21.218.28
36 2026-08-26 11:57 639233414056832719
196 ms 196.21.218.28
35 2026-08-26 11:39 639233403515141099
200 ms 196.21.218.28
34 2026-08-26 10:44 639233370841350248
563 ms 196.21.218.28
33 2026-08-26 10:27 639233360361507238
931 ms 196.21.218.28
32 2026-08-26 10:10 639233350067824371
574 ms 196.21.218.28
31 2026-08-26 09:53 639233339545274518
564 ms 196.21.218.28
30 2026-08-26 09:35 639233329214918079
199 ms 196.21.218.28
29 2026-08-26 09:18 639233318749762337
201 ms 196.21.218.28
28 2026-08-26 09:00 639233308387917838
197 ms 196.21.218.28
27 2026-08-26 08:43 639233297961740122
202 ms 196.21.218.28
26 2026-08-26 08:26 639233287487159094
398 ms 196.21.218.28
25 2026-08-26 08:08 639233276995531707
391 ms 196.21.218.28
24 2026-08-26 07:51 639233266521568229
775 ms 196.21.218.28
23 2026-08-26 07:33 639233256081047431
196 ms 196.21.218.28
22 2026-08-26 06:39 639233223620132921
1653 ms 196.21.218.28
21 2026-08-26 06:22 639233213287814244
390 ms 196.21.218.28
20 2026-08-26 06:05 639233202925983161
394 ms 196.21.218.28
19 2026-08-26 05:48 639233192644780696
568 ms 196.21.218.28
18 2026-08-26 05:30 639233182401183833
197 ms 196.21.218.28
17 2026-08-26 05:13 639233172074181051
391 ms 196.21.218.28
16 2026-08-26 04:56 639233161808421455
392 ms 196.21.218.28
15 2026-08-26 04:39 639233151357344052
391 ms 196.21.218.28
14 2026-08-26 04:22 639233141034116946
385 ms 196.21.218.28
13 2026-08-26 04:04 639233130828334142
389 ms 196.21.218.28
12 2026-08-26 03:47 639233120373450007
390 ms 196.21.218.28
11 2026-08-26 03:30 639233110066216193
195 ms 196.21.218.28
10 2026-08-26 02:37 639233078065410564
393 ms 196.21.218.28
9 2026-08-26 02:20 639233067787457832
394 ms 196.21.218.28
8 2026-08-26 02:02 639233057501801162
284 ms 196.21.218.28
7 2026-08-26 01:45 639233047089431703
200 ms 196.21.218.28
6 2026-08-26 01:28 639233036754790688
411 ms 196.21.218.28
5 2026-08-26 01:11 639233026412602472
199 ms 196.21.218.28
4 2026-08-26 00:53 639233016064066127
397 ms 196.21.218.28
3 2026-08-26 00:36 639233005922655772
569 ms 196.21.218.28
2 2026-08-26 00:19 639232995672256907
396 ms 196.21.218.28
1 2026-08-26 00:02 639232985300872416
199 ms 196.21.218.28